Sep 6, 2022 · There is no connection between cellular data and factory reset. Thus, be mindful before adapting the method to fix the mobile data not working problem. Here are 10 useful ways to fix cellular data not working. 1. Fix Cellular Data Not Working without Data Loss (Recommended) 2. Turn Off Airplane Mode; 3. Turn On Cellular Data; 4. Restart Your ... Apr 2, 2023 · Make sure mobile data or cellular data is turned on. (This is important because if somehow your data was turned off, this would hinder your connection, so it's always good to just double-check that mobile data is enabled) Disconnect from Wi-Fi ® to test your mobile data. (This helps because tunring off Wi-Fi will ensure that this feature ... 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.Thank you for the information provided, we also recommend reinserting your SIM Card to reset your device and reset your network settings to refresh your connection. Go to Settings>General>Reset>Reset Network Settings. Also, let us know what type of device you are currently using to better assist you with troubleshooting steps.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.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.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. In 2004? Cingular didn’t have data plans that rolled over back then. 2G and 3G phones were still a thing, and QWERTY feature phones had yet to take over. Call minutes, yes. Not data. Those plans are long gone as they would have been forced onto smartphone data plans if they got a smartphone somewhere after 2007.The main option will be to reset your network settings. You can do this by going to: Settings > System > Advanced > Reset > Reset Wi-Fi, mobile & Bluetooth > RESET SETTINGS. After doing this, test to test if mobile data is working or not. Let us know if this helps! Collin, AT&T Community Specialist. 0.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.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. Im facing the same issue as well. I can text and talk but cannot access internet on my iphone. I tried all possible steps from online troubleshooting tool. Switched sim’s to different device and still no internet. Also, verified its not my iPhone phone problem, cause internet works with other at&t sim’s. My recent data usage is 0 if you ...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. 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.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 ...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 ...Jul 25, 2021 · 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! If you have an iPhone 4 or higher and data is not working after taking these steps, please contact customer service for assistance at (888) 345-5509. If you have an Apple iPhone 3GS, data can be configured once the phone has been updated to iOS 5 or higher. These phones can then work for cellular data, however picture messaging cannot be ...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 outages May 8, 2023 · 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. 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. Oct 17, 2022 · 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... 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 ... 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. 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.Data over 5G just stopped working recently. I could reset my network settings and it would work for a few minutes then stop working again. I was able to switch Voice & Data to LTE and now apps and data are working. Settings -> Cellular -> Cellular Data Options -> Voice & Data -> LTE. 0.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.Apr 2, 2023 · Make sure mobile data or cellular data is turned on. (This is important because if somehow your data was turned off, this would hinder your connection, so it's always good to just double-check that mobile data is enabled) Disconnect from Wi-Fi ® to test your mobile data. (This helps because tunring off Wi-Fi will ensure that this feature ... 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 ...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. Jun 27, 2022 · For Android 11 and earlier: Go to "Settings -> Network & Internet -> Mobile network." Make sure "Mobile data" is switched on, then tap "Data warning & limit." Here you need to make sure that "Set data limit" is switched off, or at least no lower than the limit provided by your network. 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.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. Sep 6, 2022 · There is no connection between cellular data and factory reset. Thus, be mindful before adapting the method to fix the mobile data not working problem. Here are 10 useful ways to fix cellular data not working. 1. Fix Cellular Data Not Working without Data Loss (Recommended) 2. Turn Off Airplane Mode; 3. Turn On Cellular Data; 4. Restart Your ... 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 ...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). Jan 13, 2022 · 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 Specialist 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.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.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.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. Jul 16, 2018 · 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. 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.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. 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. 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. 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. 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.So, in this method, you need to enable the right network mode to fix Mobile data not working on Android. First, head to Settings > Mobile Data > Network Mode and switch to the appropriate network mode. 10. Reset Network Settings On Android. Resetting the network settings is another best thing you can do to resolve mobile data not working issues.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.If you have an iPhone 4 or higher and data is not working after taking these steps, please contact customer service for assistance at (888) 345-5509. If you have an Apple iPhone 3GS, data can be configured once the phone has been updated to iOS 5 or higher. These phones can then work for cellular data, however picture messaging cannot be ...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 1, 2022 · If 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 ... 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.Cellular data not working. Att sold me a phone now that I owe 10 payments my cellular data don’t work. What can I do because this was never told to me.Turn off airplane mode.Most phones show an airplane icon when airplane mode is on. Check your SIM card.You may have to take it out and put it back in if your phone displays Insert SIM or Emergency Call Only.New Member. •. 11 Messages. The tech at the ATT store today said this was not a problem with my phone; he thought it was something related to my ATT service. The reason he said this is he put a new SIM card in my phone and LTE still didn't work. Then he put that same (new) SIM card in a new device they had in the store and LTE still didn't work.Use the AT&T Network Coverage Map. It's easy to check our network coverage in your location: Go to the AT&T Network Coverage Map. Enter an address, state, or ZIP Code, and select the search icon. We'll show you what type of coverage is available. In an area with limited or no coverage?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...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.If you have an iPhone 4 or higher and data is not working after taking these steps, please contact customer service for assistance at (888) 345-5509. If you have an Apple iPhone 3GS, data can be configured once the phone has been updated to iOS 5 or higher. These phones can then work for cellular data, however picture messaging cannot be ...Use the AT&T Network Coverage Map. It's easy to check our network coverage in your location: Go to the AT&T Network Coverage Map. Enter an address, state, or ZIP Code, and select the search icon. We'll show you what type of coverage is available. In an area with limited or no coverage?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.Jun 27, 2022 · For Android 11 and earlier: Go to "Settings -> Network & Internet -> Mobile network." Make sure "Mobile data" is switched on, then tap "Data warning & limit." Here you need to make sure that "Set data limit" is switched off, or at least no lower than the limit provided by your 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 SpecialistSep 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. 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!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.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.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 ...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. If 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 ...Nov 30, 2018 · 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. 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 ...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.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.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.It is crucial to get in touch with AT&T if you are a client and have encountered an outage in order to report the problem and receive assistance. For updates on known outages in your area, visit their website. For the inconvenience, AT&T has occasionally given some customers credits and other forms of payment. Advertisement.Apr 2, 2023 · Make sure mobile data or cellular data is turned on. (This is important because if somehow your data was turned off, this would hinder your connection, so it's always good to just double-check that mobile data is enabled) Disconnect from Wi-Fi ® to test your mobile data. (This helps because tunring off Wi-Fi will ensure that this feature ... Jul 16, 2018 · 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. 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.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.
Feb 13, 2023 · To use cellular data, make sure Data Roaming is turned on in your device settings. To call or send a message to the U.S., dial +1 followed by the 10-digit number. The “+” sign usually appears if you press and hold the “0” key on your dial pad. To call or send a message to another country, dial + (country code) followed by the local ... . Egandg special projects
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.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.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!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. 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.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 ...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. 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. 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 ... Apr 23, 2018 · 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 ... New Member. •. 11 Messages. The tech at the ATT store today said this was not a problem with my phone; he thought it was something related to my ATT service. The reason he said this is he put a new SIM card in my phone and LTE still didn't work. Then he put that same (new) SIM card in a new device they had in the store and LTE still didn't work.Turn the iPhone or iPad by holding down the Power button. Wait for at least 10 seconds before turning the device back on again. Now, you will be able to check if the cellular data is working again. Should the device’s cellular data be not working still, then you might need to check the third method. Method 5.Then, follow these steps on your phone: 1. Connect to Wi-Fi®. 2. Open Settings and look for Network, Connections, Mobile, or similar. 3. Find the option to download a SIM or eSIM. 4. Follow the prompts to scan the QR code on your eSIM activation card from AT&T.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.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 ....