Develop Bugs

Cannot Connect to Mobile Data

Good day Gentlemen and Ladies,
So, as you the title states I cannot connect to mobile data (3g). (Before posting this I had done my research trying to find a solution and I cannot find any solutions) Let me tell you a little bit about my Galaxy Nexus SO originally when it was purchased it was a yakjuxw and I flashed to stock yakju-4.0.4 by this methodI can not link the video atm as I am a noob here) (I am sure that I did not skip any steps). I updated to android 4.2.1 all OTA updates and since that day I cannot connect to mobile data. I am pretty sure this is a software issue unless its a coincidence that my device fails on me at this point in time. Everything worked fine before i flashed it. I have tried going into *#*#4636#*#* and making sure my network type is correct as well as the radio band as automatic. I tried rebooting the device, I turned on mobile data and waited for +2hours for it to connect and nothing. I am sure I did not reach my mobile data limit as it is the beginning of my billing cycle. So, if anyone has any solutions would you be kind enough to give me a link or instructions on how to fix this problem. I recently also got double my data free of charge (from my provider) and I can't even use it Lol... Thanks!

1. Settings -> About Phone -> See your baseband? Does it exist or does it say Unknown?
2. Attempted to reset APN?
3. Tried your SIM card in another phone? Does data work on that phone?

zephiK said:
1. Settings -> About Phone -> See your baseband? Does it exist or does it say Unknown?
2. Attempted to reset APN?
3. Tried your SIM card in another phone? Does data work on that phone?
Click to expand...
Click to collapse
Man you are a genius thank you. It was an APN problem. I think when I flashed it the server # and port # went missing or something so I added those and 30 seconds later it is all working! Thanks again my friend. And for anyone who has this in the future you can access you APN settings->more...->mobile networks->Access Point Names (and APN vary on provider)

[Q] No Service. Data working but no Call/Text.

Hello!
I have m919 T-Mobile Galaxy s4 but I'm with other carrier (Wind Canada). I rooted the phone about a month ago, I believe, using THIS guide.
I spent yesterday in environment where I didn't had coverage for most of the day, but i haven't gotten it back yet. Sounds really weird as it might be not connected to the fact at all. I have 4G connection active, which means that I have internet, but it keeps 'searching' for service and I can't Call/Text anyone, neither I can receive calls or texts. Instead of the bar at the top showing how good coverage i have it just shows a crossed out circle icon.
I've tried reboots, keeping my phone off for 30mins without battery, taking out sim and putting it back in, changing network modes and resetting APN (all from settings panel).
Have anyone experienced something like that and how do I fix it? It was working perfectly for last couple of months and the phone didn't get any damage yesterday neither.
P.S Did the the regular factory reset (don't know if it affects rooting) but it didn't change anything. =

I have same problem.
Did you solve it? and how?

Haven't solved it, that was the whole point of my post!

kokozaurs said:
Haven't solved it, that was the whole point of my post!
Click to expand...
Click to collapse
Never had this happen to me. Data works off your signal, something is wickedly wrong. I'd flash the modem again if you are on 4.2.2 bootloader (doesn't matter which rom or android version). If that fails, go intonrecovery, wipe cache, wipe dalvik cache, and wipe data. If that fails, backup your data and Odin flash back to 100% stock. If that fails, more than likely your /efs folder was corrupted.
Sent from my SGH-M919 using XDA Premium 4 mobile app

Please don't create multi thread on the same topic

xdapowerapps said:
Never had this happen to me. Data works off your signal, something is wickedly wrong. I'd flash the modem again if you are on 4.2.2 bootloader (doesn't matter which rom or android version). If that fails, go intonrecovery, wipe cache, wipe dalvik cache, and wipe data. If that fails, backup your data and Odin flash back to 100% stock. If that fails, more than likely your /efs folder was corrupted.
Sent from my SGH-M919 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
I think I'm gonna flash it back to 100% stock, but the problem is that I'm on mac and I don't know how to flash it back. Is there any guide on how to do it from MAC platform?
Thanks!!

kokozaurs said:
I think I'm gonna flash it back to 100% stock, but the problem is that I'm on mac and I don't know how to flash it back. Is there any guide on how to do it from MAC platform?
Thanks!!
Click to expand...
Click to collapse
http://forum.xda-developers.com/showthread.php?t=755265
http://forums.techdiscussion.in/sho...Heimdall-Terminal-on-Mac-OS-(Odin-Alternative)
Second one will be more helpful. Good luck! :good:

xdapowerapps said:
http://forum.xda-developers.com/showthread.php?t=755265
http://forums.techdiscussion.in/sho...Heimdall-Terminal-on-Mac-OS-(Odin-Alternative)
Second one will be more helpful. Good luck! :good:
Click to expand...
Click to collapse
Ok, so I got heimdall, and got the recovery.img from the other topic. I followed the steps that was provided in the second link, but nothing much changed, it successfully uploaded the recovery.img, then i did recovery boot with power button + home button + volume up, it did some things with a pirate android guy in the back and thats it, booted up. Not sure if I have everything back to stock or not - either way, the issue with the network hasn't been resolved!

kokozaurs said:
Haven't solved it, that was the whole point of my post!
Click to expand...
Click to collapse
Tried this?
go to settings/more networks/Mobile networks/Network operators/Search now......
It might take a minute or two, then show you some networks it finds. Select your provider and it should list some options for you.
need to see Mobile data with a check, Data roaming checked, network mode should be LTE/GSM/WCDMA(auto connect)
If you KNOW what your APN (access Point Name) is you can check if it's correctly there.
It usually is downloaded with the search for network so just try with whatever is ther for now.
Back all the way out, and power off. Take out the battery, wait like 30 seconds, replace the battery and power on again.
See if you get service and can dial out.
Aloha and Good Luck!

bobolinko said:
Tried this?
go to settings/more networks/Mobile networks/Network operators/Search now......
It might take a minute or two, then show you some networks it finds. Select your provider and it should list some options for you.
need to see Mobile data with a check, Data roaming checked, network mode should be LTE/GSM/WCDMA(auto connect)
If you KNOW what your APN (access Point Name) is you can check if it's correctly there.
It usually is downloaded with the search for network so just try with whatever is ther for now.
Back all the way out, and power off. Take out the battery, wait like 30 seconds, replace the battery and power on again.
See if you get service and can dial out.
Aloha and Good Luck!
Click to expand...
Click to collapse
yep, one of first routines i tried. No difference

kokozaurs said:
yep, one of first routines i tried. No difference
Click to expand...
Click to collapse
Ok, now you might want to call your provider and ask them to remove you from their network and reinsert you again. That procedure will often re-enable normal operation of cellular connectivity.
They will ask you to power down and remove your battery for about a minute, then power up again.
Aloha and Good Luck!

Tried it all
Well im in the same boat here.
I checked the IMEI is correct
i did a full stock MK5 install with Odin without sim inserted and with
*#2263# helps it recognizes the network on the search list (WIND)
but it wont connect (failed to connect try again)
sometimes it connects to 4G and i can use the web
but no calls or sms
i noticed i dont have LTE enabled which ill do tomorrow
i even opened my phone to check that no cables came off as it was in service for a broken screen
tried a different sim from koodo wich also acts weird it connects to data but wont make phone calls or sms
the problems began after its been UNLOCKED (sim free)
any suggestions? im willing to try anything
its been in service 4 times and still they cant figure it out...
thanks!

ph3r0c1ty said:
Well im in the same boat here.
I checked the IMEI is correct
i did a full stock MK5 install with Odin without sim inserted and with
*#2263# helps it recognizes the network on the search list (WIND)
but it wont connect (failed to connect try again)
sometimes it connects to 4G and i can use the web
but no calls or sms
i noticed i dont have LTE enabled which ill do tomorrow
i even opened my phone to check that no cables came off as it was in service for a broken screen
tried a different sim from koodo wich also acts weird it connects to data but wont make phone calls or sms
the problems began after its been UNLOCKED (sim free)
any suggestions? im willing to try anything
its been in service 4 times and still they cant figure it out...
thanks!
Click to expand...
Click to collapse
Ok I found the solution. Apparently I have bought a stolen phone. Check the imei if it hasn't been blacklisted!

[Q] No data when connected to 3g

Hey guys,
I have a really weird problem that's been persistent throughout my ownership of this phone. If my phone ever goes into 3g mode, I can't access the internet on my phone or do anything that requires data. I live in a mostly 4g area so it isn't normally an issue, but when I travel elsewhere it becomes a huge headache, forcing me to go running in search of a wifi hotspot.
I have the newest radios, and even flashed the latest RUU to reset my phone to stock. The problem is still there.
Is this an issue for anyone else, or does anyone have any suggestions as to how I can fix it? Any help at all would be GREATLY appreciated. Thank you in advance.

BABABANG said:
Hey guys,
I have a really weird problem that's been persistent throughout my ownership of this phone. If my phone ever goes into 3g mode, I can't access the internet on my phone or do anything that requires data. I live in a mostly 4g area so it isn't normally an issue, but when I travel elsewhere it becomes a huge headache, forcing me to go running in search of a wifi hotspot.
I have the newest radios, and even flashed the latest RUU to reset my phone to stock. The problem is still there.
Is this an issue for anyone else, or does anyone have any suggestions as to how I can fix it? Any help at all would be GREATLY appreciated. Thank you in advance.
Click to expand...
Click to collapse
I have the same issues regardless of what ROM I'm on. 3G is pretty iffy for me, sometimes I will get a data connection whereas some other times I don't get any data at all. I would hope that phone should say "no service" or something like that. Your best bet at this point is to try to do a factory reset to rule out any residuals from other ROMs (remember to make a backup before hand on a computer because it will wipe everything). Also take the time to update firmware
Stock Rom
http://forum.xda-developers.com/showthread.php?t=2485319
Firmware here
http://forum.xda-developers.com/showpost.php?p=46506621&postcount=2
Keep in mind sometimes the recovery can cause issues, I remember I was using specific versions of TWRP and most of the time it would work fine but other ROMs I had errors. I can't comment on Philz cause I never used it. Currently on TWRP 2.7.1.1 and so far no issues.
Lastly, the only thing I could think of is try getting a new SIM card. You want to go to the corporate stores and NOT the authorized Verizon retailers. You'll know because the authorized retailers will charge you for a new sim card whereas corporate stores do not.

AznInertia said:
I have the same issues regardless of what ROM I'm on. 3G is pretty iffy for me, sometimes I will get a data connection whereas some other times I don't get any data at all. I would hope that phone should say "no service" or something like that. Your best bet at this point is to try to do a factory reset to rule out any residuals from other ROMs (remember to make a backup before hand on a computer because it will wipe everything). Also take the time to update firmware
Stock Rom
http://forum.xda-developers.com/showthread.php?t=2485319
Firmware here
http://forum.xda-developers.com/showpost.php?p=46506621&postcount=2
Keep in mind sometimes the recovery can cause issues, I remember I was using specific versions of TWRP and most of the time it would work fine but other ROMs I had errors. I can't comment on Philz cause I never used it. Currently on TWRP 2.7.1.1 and so far no issues.
Lastly, the only thing I could think of is try getting a new SIM card. You want to go to the corporate stores and NOT the authorized Verizon retailers. You'll know because the authorized retailers will charge you for a new sim card whereas corporate stores do not.
Click to expand...
Click to collapse
Wow, thank you for taking the time to write all of that. It means a lot! I tried everything else, but I think a new sim card might do the trick. I didn't even think about that.

Keep losing data connection and apn setting access

I picked up a Sprint prepaid HTC 816 recently and decided to flash this rom below
[ROM][UNOFFICIAL][CM12.1][5.1.1][VirginMobileUS][A5][single sim][1/1/2016 security]
That one
It installed great, had everything everything working after I added my Sprint APN settings. The phone still displayed it as Virgin Mobile and only 3g seemed to be working. But I was making and receiving calls, text messages and had mobile data.
Fast forward a couple of hours, I installed a custom theme from the Play store, rebooted and ever since then I lost the ability to pickup a network signal and access my APN settings.
If I re-seat the sim and toggle airplane mode it will pickup a network signal and I can regain apn setting access again but it drops within minutes.
Ive reflashed the rom, wiped everything reflashed again, same thing. Any ideas on what has happened?
Thanks and appreciate your time!

monsai83 said:
I picked up a Sprint prepaid HTC 816 recently and decided to flash this rom below
[ROM][UNOFFICIAL][CM12.1][5.1.1][VirginMobileUS][A5][single sim][1/1/2016 security]
That one
It installed great, had everything everything working after I added my Sprint APN settings. The phone still displayed it as Virgin Mobile and only 3g seemed to be working. But I was making and receiving calls, text messages and had mobile data.
Fast forward a couple of hours, I installed a custom theme from the Play store, rebooted and ever since then I lost the ability to pickup a network signal and access my APN settings.
If I re-seat the sim and toggle airplane mode it will pickup a network signal and I can regain apn setting access again but it drops within minutes.
Ive reflashed the rom, wiped everything reflashed again, same thing. Any ideas on what has happened?
Thanks and appreciate your time!
Click to expand...
Click to collapse
Are these the APN codes you used(poster corrected a mistake in green text)? Looks like there is a different APN for prepaid /postpaid.
http://androidforums.com/threads/working-sprint-prepaid-apn-settings.920752/

I indeed use the apn settings in the green from that post. They were working fine until I had a reboot. Then everything went to ****. It wont even let me access the apn settings and when I can its briefly and then I lose signal and apn access.

monsai83 said:
I indeed use the apn settings in the green from that post. They were working fine until I had a reboot. Then everything went to ****. It wont even let me access the apn settings and when I can its briefly and then I lose signal and apn access.
Click to expand...
Click to collapse
I had an issue with something on my Virgin mobile 816 a5_chl a while back and a member @wxppro was very knowledgeable about APN settings and their intricacies. He had a MVNO 816 at the time with an APN issue and I bet he could help you with this as that was my best suggestion for a fix and it didn't help you.
See if you can direct him here to this forum so that if he can help out the info is here to help others as well. Good luck.

Not sure how much I can help. APN is a tricky business. If your APN settings disappear after some time, it is generally because the cellular network the phone connects to does not match the APN's MCC/MNC numbers. Or it could be the phone is in 3G mode (CDMA EvDo mode).
You can try these things:
Switch network types, from LTE to 3G, wait a minute, and then back to LTE. APNs do not show up in 3G mode. They only show up in LTE (or global) mode.
When you have the APNs show up, check the parameters are correct, you can do a "Restore to default" and then add the new one following that post.
Hope this helps.

I'm having a similar issue as well (except on virgin mobile)
A month ago I flashed squid's version of CM 13 on my phone and everything was fine for a few days, until I completely lost LTE and access to APNs. I reverted to stock and still was unable to get LTE, although I could get a shaky 3g connection if I changed the network mode to CDMA only. I called virgin mobile and they walked me through the troubleshooting steps and eventually determined it was a network outage (even though two desires in my house belonging to other family members had LTE). I called again after they verified that the network was working again and they were still unable to fix the issue.
Recently, a friend upgraded from a desire to a different phone on a different network, and gave me his old phone. I plugged in my sim card and activated this new phone and I got LTE. Figuring everything was good, I decided to flash squid's ROM once again. The same issue happened, I got LTE for a day or two until it cut out service again. No access to APNs, not even any service in stock or on the official build of CM12 with the APN fix (I can't access APNs there either). I'm out of ideas and would appreciate if anyone had any input on my issues.

Techdude154 said:
I'm having a similar issue as well (except on virgin mobile)
A month ago I flashed squid's version of CM 13 on my phone and everything was fine for a few days, until I completely lost LTE and access to APNs. I reverted to stock and still was unable to get LTE, although I could get a shaky 3g connection if I changed the network mode to CDMA only. I called virgin mobile and they walked me through the troubleshooting steps and eventually determined it was a network outage (even though two desires in my house belonging to other family members had LTE). I called again after they verified that the network was working again and they were still unable to fix the issue.
Recently, a friend upgraded from a desire to a different phone on a different network, and gave me his old phone. I plugged in my sim card and activated this new phone and I got LTE. Figuring everything was good, I decided to flash squid's ROM once again. The same issue happened, I got LTE for a day or two until it cut out service again. No access to APNs, not even any service in stock or on the official build of CM12 with the APN fix (I can't access APNs there either). I'm out of ideas and would appreciate if anyone had any input on my issues.
Click to expand...
Click to collapse
I have this same phone a5_chl Virgin Mobile. Did you factory reset your device before flashing back to your stock rom? The other thing is and this is just my opinion not a statement of fact or a knock on the wonderful Bigsupersquid but that 13 CM ROM is nowhere close to being stable enough for me to risk flashing it to my daily driver phone. Just read all the posts and his candid responses. You were basically a beta tester .
I'm not an expert in APN's but if you can't get that fixed your last resort might have to be wiping your system and then flashing or running the executable RUU (rom utility upgrade) file found for our device on HTC/downloads . This is a last resort option and wiping your system will remove your existing firmware so have the correct RUU for your phone downloaded to your computer before attempting a wipe. If it's an exe, which I believe the U.S. Virgin Mobile one is ,you will hook up your phone fully charged in fastboot mode then from your computer run the exe RUU like any other exe executable program and wait. It will reformat all partitions and reinstall pure stock ROM. Hope someone else had an easier fix for your data issues and good luck.
EDIT: you will need your stock recovery flashed back and a relocked bootloader before flashing the RUU but I've read that some have flashed their RUU over a custom recovery with a locked bootloader and it wrote over the custom recovery with the stock recovery. I have never personally tried this just the first way I mentioned and that worked for me.

thoctor said:
I have this same phone a5_chl Virgin Mobile. Did you factory reset your device before flashing back to your stock rom? The other thing is and this is just my opinion not a statement of fact or a knock on the wonderful Supersquid but that 13 CM ROM is nowhere close to being stable enough for me to risk flashing it to my daily driver phone. Just read all the posts and his candid responses. You were basically a beta tester .
I'm not an expert in APN's but if you can't get that fixed your last resort might have to be wiping your system and then flashing or running the executable RUU (rom utility upgrade) file found for our device on HTC/downloads . This is a last resort option and wiping your system will remove your existing firmware so have the correct RUU for your phone downloaded to your computer before attempting a wipe. If it's an exe, which I believe the U.S. Virgin Mobile one is ,you will hook up your phone fully charged in fastboot mode then from your computer run the exe RUU like any other exe executable program and wait. It will reformat all partitions and reinstall pure stock ROM. Hope someone else had an easier fix for your data issues and good luck.
EDIT: you will need your stock recovery flashed back and a relocked bootloader before flashing the RUU but I've read that some have flashed their RUU over a custom recovery with a locked bootloader and it wrote over the custom recovery with the stock recovery. I have never personally tried this just the first way I mentioned and that worked for me.
Click to expand...
Click to collapse
I did try factory resetting and I am on stock after flashing the RUU. It makes no sense as the RUU should have reset everything. That perplexes me the most

Techdude154 said:
I did try factory resetting and I am on stock after flashing the RUU. It makes no sense as the RUU should have reset everything. That perplexes me the most
Click to expand...
Click to collapse
OK then you did get back to stock not from a nandroid backup but from flashing or running exe stock RUU? If that's the case then it replaced everything that might have been changed and your issues shouldn't be related to any APN changes. You also removed and reinserted your sim card as I believe, correct?
EDIT: that perplexes me as well my friend!

Techdude154 said:
I did try factory resetting and I am on stock after flashing the RUU. It makes no sense as the RUU should have reset everything. That perplexes me the most
Click to expand...
Click to collapse
i posted about my lte issues i had for nearly two weeks, running stock just to verify the data service problem wasn't my rom...
i had to install stock recovery, relock bootloader, download the ruu.exe from htc and extract the .img file in Wine, then rename it onto the sdcard and reboot into hboot so it'd flash. neither Wine nor virtualbox xp talk correctly to any of my phones over usb. and i wasn't about to native install Windoze.
factory reset stock didn't fix it, even trying activation, update profile, etc.
i learned i could get 3g data but switching to lte instead of cdma shut down data entirely.
virgin eventually directly escalated me to tier 2 tech support in my last call, they sent a couple service programming pushes to the phone that got my lte back online.
i tried the various service programming menu options repeatedly, with no results but the prl updated once; but the trigger to fix my lte seemed to come from upstream.
i tried various apns, in cm12, cm13, and stock lollipop. rebuilt init_a5.cpp with different mccmnc and adjusted apns. i really tried most tricks in the book plus a few more.
as far as alpha testing goes, at this point I'm just sharing something cool... i always enjoyed flashing latest greatest on my ov way before i was building.
not too many actual logs to really bug report for either rom.

bigsupersquid said:
i posted about my lte issues i had for nearly two weeks, running stock just to verify the data service problem wasn't my rom...
i had to install stock recovery, relock bootloader, download the ruu.exe from htc and extract the .img file in Wine, then rename it onto the sdcard and reboot into hboot so it'd flash. neither Wine nor virtualbox xp talk correctly to any of my phones over usb. and i wasn't about to native install Windoze.
factory reset stock didn't fix it, even trying activation, update profile, etc.
i learned i could get 3g data but switching to lte instead of cdma shut down data entirely.
virgin eventually directly escalated me to tier 2 tech support in my last call, they sent a couple service programming pushes to the phone that got my lte back online.
i tried the various service programming menu options repeatedly, with no results but the prl updated once; but the trigger to fix my lte seemed to come from upstream.
i tried various apns, in cm12, cm13, and stock lollipop. rebuilt init_a5.cpp with different mccmnc and adjusted apns. i really tried most tricks in the book plus a few more.
as far as alpha testing goes, at this point I'm just sharing something cool... i always enjoyed flashing latest greatest on my ov way before i was building.
not too many actual logs to really bug report for either rom.
Click to expand...
Click to collapse
Some of that was over my head but happily not all of it. Basically what your saying is the fix needs to come from the carrier and it's a reset issue on their end not a custom rom issue? By the way I'm a big fan of your work. Hell I might be on one of your older ROMs right now I've flashed so many I forget. Thanks for the education.

thoctor said:
OK then you did get back to stock not from a nandroid backup but from flashing or running exe stock RUU? If that's the case then it replaced everything that might have been changed and your issues shouldn't be related to any APN changes. You also removed and reinserted your sim card as I believe, correct?
EDIT: that perplexes me as well my friend!
Click to expand...
Click to collapse
The first time it happened, I flashed back to stock using the RUU.exe. I tried again but the second time I took out the SIM card before running the program, I still can't get LTE.
bigsupersquid said:
i posted about my lte issues i had for nearly two weeks, running stock just to verify the data service problem wasn't my rom...
i had to install stock recovery, relock bootloader, download the ruu.exe from htc and extract the .img file in Wine, then rename it onto the sdcard and reboot into hboot so it'd flash. neither Wine nor virtualbox xp talk correctly to any of my phones over usb. and i wasn't about to native install Windoze.
factory reset stock didn't fix it, even trying activation, update profile, etc.
i learned i could get 3g data but switching to lte instead of cdma shut down data entirely.
virgin eventually directly escalated me to tier 2 tech support in my last call, they sent a couple service programming pushes to the phone that got my lte back online.
i tried the various service programming menu options repeatedly, with no results but the prl updated once; but the trigger to fix my lte seemed to come from upstream.
i tried various apns, in cm12, cm13, and stock lollipop. rebuilt init_a5.cpp with different mccmnc and adjusted apns. i really tried most tricks in the book plus a few more.
as far as alpha testing goes, at this point I'm just sharing something cool... i always enjoyed flashing latest greatest on my ov way before i was building.
not too many actual logs to really bug report for either rom.
Click to expand...
Click to collapse
It does sound a lot like a carrier/account issue as I managed to kill 2 different 816s. I don't think it's the SIM card itself because I put it into a 3rd phone and got LTE, although since it was someone else's phone, I didn' t bother activating it.
I guess you got lucky with support, I tried talking to them and they tried the same thing with me. Although all I got was excuses saying they're logging a ticket with their "network engineers" and to call back in a few days. This continued on for a few weeks until they determined I needed a new phone, which I was also bounced around for another few weeks (I still don't have it).
I'm just completely lost now. I'm almost certain it's my account and it needs to be reset, but I can't get a tech who can help me. How did you manage to get someone in tier 2?

Techdude154 said:
The first time it happened, I flashed back to stock using the RUU.exe. I tried again but the second time I took out the SIM card before running the program, I still can't get LTE.
This is starting to scare me as well because I'm thinking of going back to stock once Marshmallow gets pushed to our phone to get my beats drivers back and this is making me think twice. Sorry your having so much trouble.
Click to expand...
Click to collapse

thoctor said:
Some of that was over my head but happily not all of it. Basically what your saying is the fix needs to come from the carrier and it's a reset issue on their end not a custom rom issue? By the way I'm a big fan of your work. Hell I might be on one of your older ROMs right now I've flashed so many I forget. Thanks for the education.
Click to expand...
Click to collapse
seemed that way.
i took radio logs before and after it worked, and worked only on 3g, and it looked to me like the sim card responded differently to the ril after things were running right again.
mine might've been a special case, though, it came from ebay with no sim, and virgin had to go to a little effort to get it programmed when i installed the sim initially.
they also claimed for several days that the local Sprint tower was down for lte service.
---------- Post added at 10:37 PM ---------- Previous post was at 10:32 PM ----------
Techdude154 said:
The first time it happened, I flashed back to stock using the RUU.exe. I tried again but the second time I took out the SIM card before running the program, I still can't get LTE.
It does sound a lot like a carrier/account issue as I managed to kill 2 different 816s. I don't think it's the SIM card itself because I put it into a 3rd phone and got LTE, although since it was someone else's phone, I didn' t bother activating it.
I guess you got lucky with support, I tried talking to them and they tried the same thing with me. Although all I got was excuses saying they're logging a ticket with their "network engineers" and to call back in a few days. This continued on for a few weeks until they determined I needed a new phone, which I was also bounced around for another few weeks (I still don't have it).
I'm just completely lost now. I'm almost certain it's my account and it needs to be reset, but I can't get a tech who can help me. How did you manage to get someone in tier 2?
Click to expand...
Click to collapse
tier 2 takes luck, time, many calls, and eventually you learn the answers to all the questions tier 1 outsourced from India asks so you can feed it to them so fast they want to shuffle you along. takes a couple of weeks to over a month to get to tier 2 and sometimes they have to be involved multiple times as well.
I've been dealing with virgin since 2009... replaced only two phones, eventually got the rest of the issues hammered out with persistence.
for a little while, twice, i had direct toll free numbers to American tier two even because my issues were so hard to solve. it didn't take too long for those numbers to be disconnected, though.

8.0 update made mobile data not work

I have the Honor 7x, and recently update to the 8.0 Oreo android update. Immediately after the installed the update in the morning, I noticed that my mobile data was no longer working correctly.
Wifi can connect, I can make phone calls, send text, literally everything else about the phone works perfectly.
A day later I got another update 8.0.0.332, however I am still unable to access my mobile data.
I use At t for my phone service, and do not have any damage to the phone (havent dropped the phone, water damage, etc).
My friend has the exact same phone, with the exact same phone service, and got his update the same day without having any issues.
Thing I have tried in attempt to fix the problem already based on google searches:
I have tried turning my phone into airplane mode, waiting, turning off airplane mode (also with trying a hard reset on the phone).
I have switched my simcard to slot 2.
I have put my simcard in another phone, and verified that the sim card is still working properly (the other phone was able to access data just perfectly).
I have tried turning off 4G data, and putting it back on.
I have tried resetting the APN back to default.
I have tried manually typing in my APN.
I have also tried network setting reset.
And finally, I have tried a factory data reset.
Running out of ideas of what else to try, hoping you guys have some ideas to help me out with this problem
Much thanks.

Flash a ROM and see if that does anything, if you want. Another thing to do is to do what the post below mind says, thanks.
Or join the Telegram Honor 7x group chat lol
MOD EDIT: LINK REMOVED LOL
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Click to expand...
Click to collapse

I have the Same problem
I have the SAME PROBLEM.

firedeepinfire said:
I have the Honor 7x, and recently update to the 8.0 Oreo android update. Immediately after the installed the update in the morning, I noticed that my mobile data was no longer working correctly.
Wifi can connect, I can make phone calls, send text, literally everything else about the phone works perfectly.
A day later I got another update 8.0.0.332, however I am still unable to access my mobile data.
I use At t for my phone service, and do not have any damage to the phone (havent dropped the phone, water damage, etc).
My friend has the exact same phone, with the exact same phone service, and got his update the same day without having any issues.
Thing I have tried in attempt to fix the problem already based on google searches:
I have tried turning my phone into airplane mode, waiting, turning off airplane mode (also with trying a hard reset on the phone).
I have switched my simcard to slot 2.
I have put my simcard in another phone, and verified that the sim card is still working properly (the other phone was able to access data just perfectly).
I have tried turning off 4G data, and putting it back on.
I have tried resetting the APN back to default.
I have tried manually typing in my APN.
I have also tried network setting reset.
And finally, I have tried a factory data reset.
Running out of ideas of what else to try, hoping you guys have some ideas to help me out with this problem
Much thanks.
Click to expand...
Click to collapse
please check...
1)settings
2)wireless and network
3)mobile network
4)access point name
5)select rest to default (From the Top option)
---------- Post added at 07:23 AM ---------- Previous post was at 07:06 AM ----------
Han_UMan said:
I have the SAME PROBLEM.
Click to expand...
Click to collapse
please check...
1)settings
2)wireless and network
3)mobile network
4)access point name
5)select rest to default (From the Top option)

Thanks.
This solution worked for me.

@firedeepinfire did you end up finding a solution to this issue? I am having the exact same problem and I have tried all of the troubleshooting you listed.
Thanks so much in advance!

I got a fix on it
Only one single step to do is
Go to Settings
Back up and reset
Reset
Reset network setting
This fixed my issue...
Cheers