Cellular data not working after upgrade. Switched from an 11 to a 12, both purchased from Apple, and cellular data does not work. I can make/receive calls and texts but cannot use data. Three calls with AT&T, restarted phone, toggled airplane mode and cellular options, and reset network settings. Was supposed to get a call back from someone ...Make sure you're properly inserting the SIM card and confirm that your cellular data is enabled. Resetting your network settings in your device will refresh your connection which will improve your service. Using your Samsung Galaxy S21, go to: Settings>General Management>Reset>Reset network settings. There's a device support tool we offer that ...Apr 11, 2021 · The closer to -120 dBm, the worse your signal. Let’s say you have -50 dBm signal outside (full bars) but have a building or factory lined with any or all types of metal: steel, aluminum, brass, copper, iron, etc. This means it can potentially subtract an additional -50 dBm once it reaches inside for a signal strength of -100 dBm (1-2 bars). Check the cellular service eligibility of your Apple Watch. Ensure cellular connection is activated on Apple Watch. Turn off and on Airplane Mode. Restart your Apple Watch. Update watchOS. Check for carrier settings update. Remove and re-add cellular plan. Check the specific apps. Reset network settings on iPhone.Check your mobile plan. Inspect the SIM card. It could be Google. Outages and reception. Reset the APN. Reset settings. Factory data reset. Seek professional help. Editor’s note: Some of the ...I have an iPhone 7. I just bought the $50 monthly plan With 25gb of high speed today and I can get calls and texts but my cellular data isn’t working and will not let me send iMessages or use the internet. I’ve tried cutting my phone on/off and reset network settings.Jun 19, 2022 · You will not lose data like pictures, videos, or text. iPhone: Settings>General>Reset>Reset network settings. Android: Settings>General Management>Reset>Reset network settings. Next, visit our AT&T Wireless Support webpage and select Get Suggestions. You'll be directed to the Fix an Issue section. Settings->Cellular->Cellular Data Options->Enable LTE->Voice & Data (select Voice & Data option) Android. Go to Settings > Connection > Mobile networks > Enhanced LTE services and select on. Once complete, please ensure you power your phone off and back on to establish a fresh connection with the network.Aug 4, 2022 · Check the cellular service eligibility of your Apple Watch. Ensure cellular connection is activated on Apple Watch. Turn off and on Airplane Mode. Restart your Apple Watch. Update watchOS. Check for carrier settings update. Remove and re-add cellular plan. Check the specific apps. Reset network settings on iPhone. Check your mobile plan. Inspect the SIM card. It could be Google. Outages and reception. Reset the APN. Reset settings. Factory data reset. Seek professional help. Editor’s note: Some of the ...Oct 25, 2020 · Cellular data not working after upgrade. Switched from an 11 to a 12, both purchased from Apple, and cellular data does not work. I can make/receive calls and texts but cannot use data. Three calls with AT&T, restarted phone, toggled airplane mode and cellular options, and reset network settings. Was supposed to get a call back from someone ... Also Reset your Network Settings, go to Settings > General > Reset > Reset Network Settings. This refreshes your network. Make sure your Device Software Is Updated to the latest version, this will help with resetting your device and connection. Enough space, a Wi-Fi connection and at least 80% batter y is required for the update.Mobile data down all day today until around 6pm when the 4G icon briefly appeared for about 10 seconds then disappeared. I walked the 1000 meters today outside and did not get any mobile data or 4G. I only can text and make phone calls. That is it right now. Mobile data/4G will probably turn on around 10pm like it did yesterday.How to Fix AT&T Cellular Data not Working: Start With Checking if your cellular data is turned on. Your access to AT&T cellular data is weak. Restart your Device. Turn Off Wi-Fi on your Device. Enable then Disable Airplane Mode. Remove your SIM, then Re-insert it. Reboot your Device With Data Roaming Turned On.I have an iPhone 7. I just bought the $50 monthly plan With 25gb of high speed today and I can get calls and texts but my cellular data isn’t working and will not let me send iMessages or use the internet. I’ve tried cutting my phone on/off and reset network settings.Open the Settings app. Tap Cellular. Make sure Cellular Data is toggled on. Make sure the apps you want to use cellular data for are toggled on. Note: if you are traveling internationally, follow these steps to make sure your iPhone is set up for data roaming: Opening the Settings app. Tap Cellular.Cellular data not working I have an iPhone 6s plus and my data is not working unless im on wifi to use the internet. Ive tried everything to reset it im on an prepaid unlimited plan I was on the att store for hours and no one knows how to fix this problem.How to Fix AT&T Cellular Data not Working: Start With Checking if your cellular data is turned on. Your access to AT&T cellular data is weak. Restart your Device. Turn Off Wi-Fi on your Device. Enable then Disable Airplane Mode. Remove your SIM, then Re-insert it. Reboot your Device With Data Roaming Turned On.The closer to -120 dBm, the worse your signal. Let’s say you have -50 dBm signal outside (full bars) but have a building or factory lined with any or all types of metal: steel, aluminum, brass, copper, iron, etc. This means it can potentially subtract an additional -50 dBm once it reaches inside for a signal strength of -100 dBm (1-2 bars).Dec 16, 2022 · Remove and re-add your cellular plan. Try removing and re-adding your cellular plan. On your iPhone, tap Watch > My Watch > Cellular > i > Remove > Remove > tap Add a New Plan to start afresh. Reset your Apple Watch. Resetting erases the current data from your watch which may clear unknown issues. Options. 03-22-2023 10:00 AM in. Galaxy S23. For anyone else looking here with the same issue, I called T-mo and had them reset my network, this worked temporarily but the problem is back. You can call in and ask them to reset it for you, may help for a little bit or could fix your issue altogether.Let’s meet in a Direct Message (DM) regarding your new iPhone 13 and its inability to use cellular data. Please check your Direct Message Inbox. It’s the chat icon next to the bell icon in the upper right corner of the Forums. Looking forward to helping you! Lar, AT&T Community SpecialistOut of nowhere, my cellular data stopped loading anything despite “5ge” being in the corner with full bars. I’ve tried powering off my phone, taking the SIM card out, nothing is working. I can’t troubleshoot the network because I would have to sign in and I do not pay for this account. My dad does.Here is an in-depth guide to all the steps to follow when your cellular data isn’t working. 1. Check That Your Cellular Data is On. The first step is to check whether your cellular data is on. To do this: Open the settings app. Go to cellular, then cellular data. Tap on the toggle to turn cellular data on. It is grey when off and green when on.Make sure that Set Automatically is turned on. Turn on Airplane Mode for about 30 seconds. Then turn it off again and let your iPhone automatically select the best network. If you see No Service or SOS only in the status bar of your iPhone, open Settings and tap Cellular, or Cellular Data, or Mobile Data. Tap Cellular Data Options and make sure ...Restart your device - If a power cycle does not resolve your issue, perform a device restart. Press and hold the Volume down and Side buttons, then select Restart > Restart. It's very important that you backup/restore your data and files after the factory reset. Select the SETTINGS tab, then scroll to and select About Gear.I am on AT&T with an iPhone 12, iOS version 16.0 (20A362). As of yesterday my cellular data stopped working — only WiFi will give me Internet. I’ve switched cellular connectivity on and off, up...I apologize that you are having issues with your iPad not connecting to data. The first step I would try is resetting your network settings. You can do this by tapping on settings - general - reset - reset network settings. This forces your iPad to re-register its network settings. This fixes the problem about 99% of the time.Find outages in your area Select your service Wireless (mobile phone) AT&T Internet, AT&T Phone, or U-verse® TV Get help with Wi-Fi® weak spots Manage connected devices Check for outagesIf your plan uses an eSIM, follow these steps: On the new iPad, go to Settings > Cellular Data > Set up Cellular Data. If you see a Transfer button next to the carrier you want, tap it. Then follow the directions to transfer service. You might need to wait a few minutes for the activation to complete. If you don’t see a Transfer button, or if ...Find help for your AT&T Wireless℠ plan, international plan, or parental controls. Learn how to help your wireless signal with AT&T Cell Booster. Explore wireless add-ons, apps, and more.Oct 24, 2022 · On your iPhone, open the Apple Watch app. Tap the My Watch tab, then tap Cellular. Tap Set Up Cellular. Follow the instructions for your carrier. You might need to contact your carrier for help. You might see a phone number assigned to your Apple Watch that differs from the phone number assigned to your iPhone. Jul 18, 2022 · I have tried all of those solutions. I live in Los Angeles and my cellular data works just fine there. I’ve been in Las Vegas for about two weeks and my cellular data stops working out of nowhere. I have an iPhone 12 and my zip code where I’m located right now is 89030. Cellular data not working. Out of nowhere, my cellular data stopped loading anything despite “5ge” being in the corner with full bars. I’ve tried powering off my phone, taking the SIM card out, nothing is working. I can’t troubleshoot the network because I would have to sign in and I do not pay for this account. My dad does.1. From the home screen, select the Settings app. 2. Select Cellular. To turn cellular data on or off, select the Cellular Data switch. Note: To turn LTE data on or off select Cellular Data Options > Enable LTE > desired option. Learn more from the Apple support article About cellular data settings and usage on your iPhone. 3.Go to Settings -> Cellular and turn on the switch next to Cellular Data at the top of screen. You’ll know Cellular Data in on when the switch is green. If Cellular Data is already on, try toggling the switch off and back on. This will give Cellular Data a fresh start, just in case it’s not working because of a minor software glitch.Sep 14, 2020 · Go to settings/general/about. What do you see for carrier? If not ATT, your APN settings are likely not correct. Resetting network settings normally fixes that but try a reboot too. Obviously, also make sure cellular data is on. Other than that, though, not much else you can do but call. Your line may not be provisioned correctly. Jul 22, 2014 · I apologize that you are having issues with your iPad not connecting to data. The first step I would try is resetting your network settings. You can do this by tapping on settings - general - reset - reset network settings. This forces your iPad to re-register its network settings. This fixes the problem about 99% of the time. I have an iPhone 7. I just bought the $50 monthly plan With 25gb of high speed today and I can get calls and texts but my cellular data isn’t working and will not let me send iMessages or use the internet. I’ve tried cutting my phone on/off and reset network settings.Out of nowhere, my cellular data stopped loading anything despite “5ge” being in the corner with full bars. I’ve tried powering off my phone, taking the SIM card out, nothing is working. I can’t troubleshoot the network because I would have to sign in and I do not pay for this account. My dad does.How to Fix Cellular Data Not Working 1. Turn on mobile data The first thing you should do when your cellular data stops working is make sure the ability to... 2. Turn off Wi-Fi Your phone doesn’t use cellular data when it’s also connected to Wi-Fi. That’s a good thing because it... 3. Turn off ...Oct 21, 2019 · My cellular data stopped working where I could only have coverage/receive messages/texts when I was in a wifi area. However, I could not access anything with wifi off and cellular on. 2. Check Cellular Data Settings. To be on the safe side, take a look at cellular data settings and make sure it is turned on. Go to "Settings -> Cellular/Mobile Data" and make sure the toggle next to "Cellular Data" or "Mobile Data" is turned on. If it's already on, turn it off and back on again. 3.Dec 16, 2016 · Settings->Cellular->Cellular Data Options->Enable LTE->Voice & Data (select Voice & Data option) Android. Go to Settings > Connection > Mobile networks > Enhanced LTE services and select on. Once complete, please ensure you power your phone off and back on to establish a fresh connection with the network. From the home screen, select the Settings app > scroll to and select General > scroll to and select Reset > select Reset Network Settings > select Reset Network Settings again to confirm. Note: To turn LTE data on or off select Cellular Data Options > Enable LTE. This information will help us investigate your concerns further so that we're able ...Dec 7, 2022 · Try a manual scan and select a network other than the one you're currently on. This won’t work in Mexico or Canada. Restart your device. If it has a removable battery, take it out and put it back in. Remove your laptop card if you’re using one, restart your laptop, and reinsert the card. Use the international coverage map to confirm data ... Wait 1 minute. Then press and hold the power button until the Apple logo appears. 3. Update your carrier settings. Sometimes your carrier may release updates that are designed to improve your cellular data performance. Check to see if there is an update and if there is an update, update your carrier settings.Feb 7, 2023 · Wait for half a minute and then turn your mobile phone back on. Go to the same settings section and turn off Airplane mode. After that, check if your mobile data is working again. To double-check accurately, make sure you’re only connected to your cellular data services and make sure your mobile WiFi is turned off. 3. Nov 10, 2021 · Go to Settings -> Cellular and turn on the switch next to Cellular Data at the top of screen. You’ll know Cellular Data in on when the switch is green. If Cellular Data is already on, try toggling the switch off and back on. This will give Cellular Data a fresh start, just in case it’s not working because of a minor software glitch. @ATTHelp @ZachWygal No. They do not fix anything and never refund or follow through on phony offers. Jeff Radebaugh (@Heffevi) reported 27 minutes ago @ATT no ABC still. You guys need to figure this out but you can do it with one less customer. AT&T TV has enough performance issues that you can’t also have a content problem. #tvpromise Jun 1, 2022 · The first one involves resetting your network settings as mentioned, by @sandblaster. This will be the seventh step on this page. This options resets Wi-Fi networks and passwords, cellular settings. Check out the steps below for additional steps to resolve your data connection. Go to Settings> Cellular Settings> Network> Reset Network. Oct 24, 2022 · How to Fix AT&T Cellular Data not Working: Start With Checking if your cellular data is turned on. Your access to AT&T cellular data is weak. Restart your Device. Turn Off Wi-Fi on your Device. Enable then Disable Airplane Mode. Remove your SIM, then Re-insert it. Reboot your Device With Data Roaming Turned On. Check to see if any devices activate around the time you see service drops. Restart your device. Check out causes why your device may be slowing down. Give this a try and let us know what you find. While time of day can be a factor in impacting your cellular data strength, so, too, can other things like equipment and the environment.AT&T is an American telecommunications company, and the second largest provider of mobile services and the largest provider of fixed telephone services in the US. AT&T also offers television services under their U-verse brand. AT&T has near-national wireless coverage.It is now a safety concern as I need to be alone tomorrow and it is essential that I be able to use maps to navigate. Some texts are getting through but with a significant delay. A map will partially load and then just spin. I tried turning on and off all data and cellular settings. Turned off all app data except maps with no fix.If your carrier allows it, you can view your APN settings in one of the following locations: Settings > Cellular > Cellular Data Network. Settings > Mobile Data > Mobile Data Options > Mobile Data Network. If your device doesn't have either option, contact your carrier. To change your settings, tap each field and enter the details from your ...Feb 24, 2022 · Check to see if any devices activate around the time you see service drops. Restart your device. Check out causes why your device may be slowing down. Give this a try and let us know what you find. While time of day can be a factor in impacting your cellular data strength, so, too, can other things like equipment and the environment. The closer to -120 dBm, the worse your signal. Let’s say you have -50 dBm signal outside (full bars) but have a building or factory lined with any or all types of metal: steel, aluminum, brass, copper, iron, etc. This means it can potentially subtract an additional -50 dBm once it reaches inside for a signal strength of -100 dBm (1-2 bars).Jun 19, 2022 · You will not lose data like pictures, videos, or text. iPhone: Settings>General>Reset>Reset network settings. Android: Settings>General Management>Reset>Reset network settings. Next, visit our AT&T Wireless Support webpage and select Get Suggestions. You'll be directed to the Fix an Issue section. This is what I did. 1.Insert at&t prepaid sim card. 2.Go to Setting, General, and VPN. 3.Delete former VPN setting of another sim card. 4.Then restart iPhone. 5.Date will work under the new VPN setting. The setting will be automatically set up with the at&t sim card.Explore voicemail, messaging, and apps to help you and yours stay safe and connected. Discover ways to stay connected when you travel. Find out how to connect through Wi-Fi, mobile hotspots, and our wireless network. We’ve got you covered. Check out your plan info, reward programs, and device protection options.Check your wireless usage to confirm data on your plan. Also, check out your AT&T Prepaid Coverage for connection and signal strength. Lastly, here is our helpful Troubleshoot And Resolve Tool to help fix your mobile data connection, go to Fix An Issue > Connection> Call& data quality/Internet and make sure you have correct device at Change Device.Mobile data down all day today until around 6pm when the 4G icon briefly appeared for about 10 seconds then disappeared. I walked the 1000 meters today outside and did not get any mobile data or 4G. I only can text and make phone calls. That is it right now. Mobile data/4G will probably turn on around 10pm like it did yesterday.Properly working cellular service is important during electrical power loss, @Aurora69! Let's look into what's disrupting your iPhones' communication in a power outage. If you're at home and your devices are connected via Wi-Fi Calling , when power is unavailable, you will want to keep an eye on your network connection strength which is ...Android device data settings. To program your Android TM device with the correct settings: Tap your Settings menu. Choose either Wireless & Networks, More Networks, or Connections. Tap Mobile Networks, then Access Point Names. Find and select the option to add a new APN. You may find a plus (+) symbol on the screen, or tap the menu button.AT&T Community Forums. Wireless. Features & Services. Data & Messaging Features, ... Cellular Data not working. Gift your grad endless possibilities. Celebrate right now and connect them to their brightest future.If the cellular network is still not available on your iPhone or iPad, try restarting the device. For your iPad, just press the power button until the power off screen appears, then slide the power off icon right in order to initiate the shut down. For the iPhone, hold and press one of the volume buttons and the side button, then slide to power ...May 13, 2022 · Turn Off Wi-Fi on Your Phone. Disable and Enable Mobile Data Mode. Make Sure Your SIM Card Is Properly Inserted. Check the Data Limit/Data Plan of Your Carrier. Change Your Preferred Network Type. Reset Network Settings on Your Android Phone. Perform a Software Update on Your Phone. Our Troubleshoot & Resolve Tool is a fantastic resource to use when you run into issues like this. Select the device you are using, and then under Service/network issues choose Internet. Another thing we do when you are experiencing data connection issues is to Reset Network Settings on all devices. Tap Settings> General> Reset> Reset Network ...Open the Settings app. Tap Cellular. Make sure Cellular Data is toggled on. Make sure the apps you want to use cellular data for are toggled on. Note: if you are traveling internationally, follow these steps to make sure your iPhone is set up for data roaming: Opening the Settings app. Tap Cellular.Hello vin24, let's get your International Day Pass working! Try rebooting your phone ( Press and hold the Power/Lock button, then select Restart .) As the ACE @formerlyknownas mentioned, try resetting network settings to refresh your connection to the network. Settings icon > scroll to and select General management > select Reset > Reset ...Options. 03-22-2023 10:00 AM in. Galaxy S23. For anyone else looking here with the same issue, I called T-mo and had them reset my network, this worked temporarily but the problem is back. You can call in and ask them to reset it for you, may help for a little bit or could fix your issue altogether.Reder’s suggestions on Fix Cellular Data Stopped Working – No Internet, Solution #1. Make Sure the Cellular/Mobile Data toggle is turned ON. Solution #2. Turn On Airplane Mode On and Turn off. Solution #3. Check for Carrier Update on your iPhone. Solution Fix #4. Restart your iPhone, Cellular iPad.Jun 1, 2022 · The first one involves resetting your network settings as mentioned, by @sandblaster. This will be the seventh step on this page. This options resets Wi-Fi networks and passwords, cellular settings. Check out the steps below for additional steps to resolve your data connection. Go to Settings> Cellular Settings> Network> Reset Network. Let’s meet in a Direct Message (DM) regarding your new iPhone 13 and its inability to use cellular data. Please check your Direct Message Inbox. It’s the chat icon next to the bell icon in the upper right corner of the Forums. Looking forward to helping you! Lar, AT&T Community SpecialistMay 13, 2022 · Turn Off Wi-Fi on Your Phone. Disable and Enable Mobile Data Mode. Make Sure Your SIM Card Is Properly Inserted. Check the Data Limit/Data Plan of Your Carrier. Change Your Preferred Network Type. Reset Network Settings on Your Android Phone. Perform a Software Update on Your Phone. Swipe down from the top right side of the screen to reveal Control Center. If the cellular button is green, tap it, then tap it again after a few seconds. Check if cellular data is now working ...May 10, 2022 · Settings icon > scroll to and select General management > select Reset > Reset network settings > Reset settings > select Reset to confirm. If that does not work, go into cellular settings and see if you can select a carrier. If neither works, you may need to add the international pay per use feature to your line. Current problems and outages | Downdetector. User reports indicate no current problems at AT&T. AT&T offers local and long distance phone service, broadband internet and mobile phone services to individuals and businesses.AT&T is an American telecommunications company, and the second largest provider of mobile services and the largest provider of fixed telephone services in the US. AT&T also offers television services under their U-verse brand. AT&T has near-national wireless coverage.Mar 21, 2023 · It can take two to five days for data use to post in myAT&T, so amounts shown online may not reflect all use since your last bill. Time stamps for current data or text usage may be off by up to 4 hours in myAT&T. Here are some things to keep in mind: We usually update recent data use every three hours. I am on AT&T with an iPhone 12, iOS version 16.0 (20A362). As of yesterday my cellular data stopped working — only WiFi will give me Internet. I’ve switched cellular connectivity on and off, up...Go to Settings > General > Reset > Reset Network Settings, this refreshes your network. We also recommend our Troubleshoot And Resolve Tool > Fix An Issue > Connection > Messaging & Internet, to assist fix your cellular connectivity and message service. Let us know if this is helpful! Thank you for reaching out to the community!It would be a pleasure to assist you with reconnecting your data. As stated by our ACE Community member. To resume your data connection you will need to pay for the plan right away for it to work. If you have already paid for the new plan, it appears there may be something else causing this issue.Jun 13, 2018 · It is important to back up your device before doing this. For instructions visit our Device How to Page and select the Make and Model of your device. Thank you for being part of the Community Forums, and have a great weekend. In some cases, powering down the phone for 3-5 minutes has resolved the data access issue. 1. From the home screen, select the Settings app. 2. Select Cellular. To turn cellular data on or off, select the Cellular Data switch. Note: To turn LTE data on or off select Cellular Data Options > Enable LTE > desired option. Learn more from the Apple support article About cellular data settings and usage on your iPhone. 3. Follow these tips if your mobile data isn't working Turn your phone off and back on. Make sure mobile data or cellular data is turned on. Disconnect from Wi-Fi ® to test your mobile data. Turn off airplane mode.
iPad is not connect to cellular. Recently anytime I disconnect my iPad from the cellular network it won’t recognize the cellular connection. It worked perfect until a couple of weeks ago. For a bit turning it off and back on worked but now it is not. I have reset the network settings, turned on airplane mode and everything, but nothing works.. Mareme
Check to see if any devices activate around the time you see service drops. Restart your device. Check out causes why your device may be slowing down. Give this a try and let us know what you find. While time of day can be a factor in impacting your cellular data strength, so, too, can other things like equipment and the environment.64.5K Messages. 2 years ago. You aren’t really connected to ATT’s network, even if it says ATT Mexico. You are still roaming and subject to whatever conditions are imposed on roaming by that carrier which could include reduced data speeds. See if you have the option of selecting what carrier you connect to.Jun 1, 2022 · The first one involves resetting your network settings as mentioned, by @sandblaster. This will be the seventh step on this page. This options resets Wi-Fi networks and passwords, cellular settings. Check out the steps below for additional steps to resolve your data connection. Go to Settings> Cellular Settings> Network> Reset Network. Mobile data down all day today until around 6pm when the 4G icon briefly appeared for about 10 seconds then disappeared. I walked the 1000 meters today outside and did not get any mobile data or 4G. I only can text and make phone calls. That is it right now. Mobile data/4G will probably turn on around 10pm like it did yesterday.Since the update my mobile data stopped working. I tried everything, changing the APN settings, toggling, talking to SAMSUNG India and US to no avail. Here is what was wrong: It seems like AT&T has 3G and 4G/LTE sims this problem is with their 3G sim it doesnt work with the new update unless you roll back to 3G APN settings.Feb 24, 2022 · Check to see if any devices activate around the time you see service drops. Restart your device. Check out causes why your device may be slowing down. Give this a try and let us know what you find. While time of day can be a factor in impacting your cellular data strength, so, too, can other things like equipment and the environment. I apologize that you are having issues with your iPad not connecting to data. The first step I would try is resetting your network settings. You can do this by tapping on settings - general - reset - reset network settings. This forces your iPad to re-register its network settings. This fixes the problem about 99% of the time.2) Inside the app go to Profile and Settings. 3) Go to Manage My Data. 4) On Sponsored Data: If it is enabled, disable it. Wait 5 mins. Restart your device. Repeat steps 1-4, this time turn sponsored Data on. Wait 5 mins and turn off and then back on your device. Boom: check your cellular data it is now working.Feb 4, 2022 · Make sure you're properly inserting the SIM card and confirm that your cellular data is enabled. Resetting your network settings in your device will refresh your connection which will improve your service. Using your Samsung Galaxy S21, go to: Settings>General Management>Reset>Reset network settings. There's a device support tool we offer that ... 5 years ago. My Iphone X would not connect to AT&T data for 3 days. Went to AT&T, replaced SIM card which didn't help, so was sent to Apple store. Apple couldn't find anything wrong, but gave me a new phone (under warranty), another SIM card just in case and sent me back to the AT&T store to activate the 3rd SIM card.The closer to -120 dBm, the worse your signal. Let’s say you have -50 dBm signal outside (full bars) but have a building or factory lined with any or all types of metal: steel, aluminum, brass, copper, iron, etc. This means it can potentially subtract an additional -50 dBm once it reaches inside for a signal strength of -100 dBm (1-2 bars).Swipe down from the top right of the screen to see the Control Center and look for the Mobile Data icon, which is an antenna to the right of Airplane mode. If it's off, tap it to turn it on ...I called them again and they told me they need to re-activate the SIM, so they did that and it's still not working. I tried Resetting my network, re-insert SIM, toggled cellular data and airplane mode on/off and also removed International Day Pass from my account, but still no luck. When I checked my data balance by dialing *3282* it says I ....