Lost all Mobile Data connectivity - Nexus 5 Q&A, Help & Troubleshooting

So a week ago I did a fresh install of Lollipop via the factory image for LRX21O, rooted it, and installed Franco's kernel #68. Everything worked great until yesterday as it seems I've lost all mobile data connectivity. I can still make phone calls and text messages, but data is a no go when mobile. So far here's what I tried:
Made sure the APN was Correct
Cycled Flight Mode
Cycled Power
Pulled & Re-Installed SIM Card
Cleared the Cache
Factory Reset
Re-flashed Stock Kernel
Flashed Android 4.4.4 Radio
Re-Flashed Lollipop Factory Image
Restored Previous known working install of Android 4.4.4 via TWRP
Made sure there were no billing issues with my carrier.
Anyone have any ideas? I'm especially concerned and convinced its not specifically a Lollipop problem (though that doesn't mean it didn't cause it) since it did not restore functionality when I flashed back KitKat. I've never used 3rd Party ROMs on this phone, only rooted stock. My carrier is SimpleMobile.

Ron Overdrive said:
So a week ago I did a fresh install of Lollipop via the factory image for LRX21O, rooted it, and installed Franco's kernel #68. Everything worked great until yesterday as it seems I've lost all mobile data connectivity. I can still make phone calls and text messages, but data is a no go when mobile. So far here's what I tried:
Made sure the APN was Correct
Cycled Flight Mode
Cycled Power
Pulled & Re-Installed SIM Card
Cleared the Cache
Factory Reset
Re-flashed Stock Kernel
Flashed Android 4.4.4 Radio
Re-Flashed Lollipop Factory Image
Restored Previous known working install of Android 4.4.4 via TWRP
Made sure there were no billing issues with my carrier.
Anyone have any ideas? I'm especially concerned and convinced its not specifically a Lollipop problem (though that doesn't mean it didn't cause it) since it did not restore functionality when I flashed back KitKat. I've never used 3rd Party ROMs on this phone, only rooted stock. My carrier is SimpleMobile.
Click to expand...
Click to collapse
Maybe you need to contact your carrier?

You're not alone, I'm having the same problem since going to 5.0. I use Red Pocket on AT&T's network. Can't get mobile data working at all. Contacted Red Pocket and they reset my data on their end but still a no-go. Wi-Fi fine, calls and SMS fine. MMS, like data, doesn't work.
I guess I'll pick up another MVNO card to make sure it isn't still Red Pocket's issue. I have another SIM, but unfortunately my T-Mobile card, which is usually in a Lumia 1520, doesn't work for data on the Nexus 5 because that is on their blocked list of phones (stupid carriers).

Related

[Q] Fixed - Cannot make any calls, but text and data works

Been trying to figure out this problem but can't. Was running Carbonrom 4.3. Was updating to TWRP 2.6.3.0 using terminal emulator (using instructions from the twrp site). rebooted phone after update. That's when the problem arise -- could not make any phone calls.
What I've done:
1 - restored my prior backups (synergy, beanstock, cleanrom) -- did not resolve problem. Has data access, but cannot make or receive phone calls.
2 - re-installed roms from scratch (after full wipes, including format of internal storage/data) -- same result.
3 - checked my IMEI - it's valid, and matches the back of phone.
4 - checked my mobile network setting: cdma/lte/evdo
5 - again, Data works fine: I can surf the web, access Google Playstore & install programs, receive text messages.
...but I cannot make any outgoing calls. And when I make a call to my cell phone, it does straight to voicemail
Any suggestions? Did the SIM card go bad?
finally fixed the problem. Had to Odin back to stock >> took OTA updates >> factory reset, and bingo.
...weird that phone boinked but data worked?!?
epagib said:
finally fixed the problem. Had to Odin back to stock >> took OTA updates >> factory reset, and bingo.
...weird that phone boinked but data worked?!?
Click to expand...
Click to collapse
I've had this happen several times in different circumstances. The fix I've found is to manually set the radio band using the "phone info" app. Under "Phone Information" I click on the menu which brings up an option to select the radio band. For some reason I need to do this while traveling to Canada too, I need to select the PCS band, then go back to Cellular once I reenter the US and want to get back on Verizon. I tried Odin'ing back to stock, and it didn't work for me, but I might have had the wrong stock at the time (I was out of town).
epagib said:
finally fixed the problem. Had to Odin back to stock >> took OTA updates >> factory reset, and bingo.
...weird that phone boinked but data worked?!?
Click to expand...
Click to collapse
Did you have your imei backed up using the synergy method? I had the same problem and with the same exact ROM, Carbon 4.3. When I switched Roms I couldn't make or receive calls but I could use my data and even send SMS. Luckily I had a backup of my imei in the form of a zip file that I flashed in recovery. It fixed it.
Sent from my SCH-I535 using Tapatalk 4

[Q] Problems flashing an already rooted 4.4.3 over 4.4.2

I flashed the ROM and baseband per instructions in this thread: http://forum.xda-developers.com/goo...-android-4-4-3-ktu84m-rooted-busybox-t2557523
I had 4.4.2 and he said it had to be stock, and it was with the exception of potentially having some system files modified due to other apps, like Android Tuner. I wiped Dalvik cache and regular cache, installed both files as mentioned through TWRP, and yet upon starting I get a notice to update to 4.4.3 despite already being on 4.4.3, and it can't connect to T-Mobile which is my service provider. Am I doing something wrong here? I figured by "stock" ROM he meant the original and not CyanogenMod or anything like it. Was that supposed to mean stock Android with zero modifications to the system files?
I didn't want to do a factory reset and have to redo all my data and applications, but if I must then I will.
There is a rough thunderstorm going on so maybe that knocked out T-Mobile service, but I find it rather coincidental.
]UPDATE] Turns out that the storm coincidentally disabled the towers at around the exact time I updated my phone. The phone was flashed fine. T-Mobile is the problem. Thanks for the help!
It doesn't matter what ROM you're coming from but if it's not stock you need to wipe. But whatever mods you have on stock is irrelevant.
If you're having issues connecting,, wiping cache is often the cause. Check. Our imei etc is correct. Maybe fastboot flash a stock cache image or Nandroid restore
Sent from my Nexus 5 using Tapatalk
rootSU said:
It doesn't matter what ROM you're coming from but if it's not stock you need to wipe. But whatever mods you have on stock is irrelevant.
If you're having issues connecting,, wiping cache is often the cause. Check. Our imei etc is correct. Maybe fastboot flash a stock cache image or Nandroid restore
Sent from my Nexus 5 using Tapatalk
Click to expand...
Click to collapse
It was the original stock that shipped with the phone, with potentially some files modified from an application. Strangely when searching for networks to connect to, Sprint and AT&T show up as normal but not T-Mobile, although their APN's show up as if I am connected but can't get access to their service.
The IMEI within the phone appears to match the worn off label. Either way, I cleared the Dalvik and regular cache again so I'll see what happens when the phone finishes booting.
Surely it's booted by now?
Sent from my Nexus 5 using Tapatalk
rootSU said:
Surely it's booted by now?
Sent from my Nexus 5 using Tapatalk
Click to expand...
Click to collapse
It finished updating the apps and didn't get a connection, however when I traveled outside of my home zone to work, after I reach the spot outside of the city at which there is no LTE support and it drops to EDGE the connection picked up and remained. After I returned from work and got back in the city near my home where it switches back to LTE the connection dropped again and remained that way even after wiping the caches again.
Does this still sound like a software problem or maybe it's on T-Mobile's end?
Fixed
Turns out that the storm coincidentally disabled the towers at around the exact time I updated my phone. The phone was flashed fine. T-Mobile is the problem. Thanks for the help!

[Q] Cyanogenmod issue please help

Couple days ago I flashed my first rom, a nightly kltespr Cyanogenmod 12 through Clockworkmod custom recovery. When it booted up the cell network kept turning on and off but everything else was working (not due to bills or location, it did not acknowledge my SIM). I attempted a clean install several times, but to no avail. Went to boost mobile (my provider) and asked if I could get some help with my phone. I told them I installed a custom OS and they thought it was a virus when they saw the booting animation, lmao. He did a full ****ing system wipe.. So it booted up with CMOD 12 again because I didnt have a backup and didnt install another rom. He asked me if I could connect to their wifi. Then this dumbass wouldnt give me the password to it because he thought I can hack into his PC and **** and threatened to call the cops.. He didnt even give me a new SIM to try. Then I went home and tried downloading the latest version in klte and installing it (still CMOD 12).. Unfortunately, I confused it with kltespr, the correct rom for my SM-G9OOP (keep in mind, before this I installed the correct version, but i had cell service issues). Before I noticed, everything was working fine, then my cell network turned off. I noticed the problem when I went to settings and checked my model number and it was changed to SM-G9OOF, so I downloaded the kltespr version and appropriate gapps package, and prior to installing in Clockworkmod I wiped davlik cache, system, and everything. It boots up fine, but cell network is still not working, and more recently the phone turned off, then got stuck in bootloop. I took out the battery and reinstalled everything in CWM, after wiping again. Booted up fine again, but I still dont have cell service and the phone uncontrollably restarts over and over, forcing me to take the battery out. Is there anything I can do?
Btw this is my first post excuse the length.
Also, **** you Boost, get some competent employees. I highly suggest anyone considering them to stay away.
If I cant fix this im going to get a new iPhone6+ or Note 4 from Verizon.
Try this fix posted in this thread. Has nothing to do with Boost Mobile.
http://forum.xda-developers.com/sprint-galaxy-s5/help/help-t3006806

No cell signal, wifi works

My Nexus 5 suddenly has no signal today, but WIFI is working (my nexus tab has a cell signal so its not a network issue.)
was using CM12.1 (5.02) tried the following:
reboot (many times)
did a factory reset/wipe
flashed a new CM rom (Euphoria 1.1)
hit *#*#4636#*#* and checked the radio is on
popped the back and cleaned the antenna contacts
None of the above worked, now I'm wondering what to do next...?
Any suggestions would be gratefully appreciated.
sleepingsword said:
My Nexus 5 suddenly has no signal today, but WIFI is working (my nexus tab has a cell signal so its not a network issue.)
was using CM12.1 (5.02) tried the following:
reboot (many times)
did a factory reset/wipe
flashed a new CM rom (Euphoria 1.1)
hit *#*#4636#*#* and checked the radio is on
popped the back and cleaned the antenna contacts
None of the above worked, now I'm wondering what to do next...?
Any suggestions would be gratefully appreciated.
Click to expand...
Click to collapse
Flash factory images.
Sim card issue?
Turn off airplane mode lol
sleepingsword said:
My Nexus 5 suddenly has no signal today, but WIFI is working (my nexus tab has a cell signal so its not a network issue.)
was using CM12.1 (5.02) tried the following:
reboot (many times)
did a factory reset/wipe
flashed a new CM rom (Euphoria 1.1)
hit *#*#4636#*#* and checked the radio is on
popped the back and cleaned the antenna contacts
None of the above worked, now I'm wondering what to do next...?
Any suggestions would be gratefully appreciated.
Click to expand...
Click to collapse
Do you have an IMEI (Settings>About phone>Status)?
IMEI is present
Airplane mode is off :silly:
Sim card is fine, I tested it in my old i9300
I guess I will go factory image later today and see about that.
Thx so far.
Well it appears the fone is dead...
I restored a factory image (4.4.0)
Still no cell signal.
Going through the updates 4.4.2 > 4.4.3 etc, but I doubt its going to make a difference.
Bought in 2013... I hope (but doubt) I can get it fixed under warranty
sleepingsword said:
Well it appears the fone is dead...
I restored a factory image (4.4.0)
Still no cell signal.
Going through the updates 4.4.2 > 4.4.3 etc, but I doubt its going to make a difference.
Bought in 2013... I hope (but doubt) I can get it fixed under warranty
Click to expand...
Click to collapse
It's not enough to restore factory image. Try to flash completely stock. http://forum.xda-developers.com/google-nexus-5/general/tutorial-how-to-flash-factory-image-t2513701
Sorry for my wording, I went completely back to stock and unfortunately it did not fix the issue.
It is still covered under warranty and with the stock restore its is now ready to be sent back.
Back to the old i9300 for now!
sleepingsword said:
Sorry for my wording, I went completely back to stock and unfortunately it did not fix the issue.
It is still covered under warranty and with the stock restore its is now ready to be sent back.
Back to the old i9300 for now!
Click to expand...
Click to collapse
After you flash back to stock, what steps are you taking when setting up the phone again - are you restoring app backups and stuff? I had this same problem, when I restored as new and did not use the google backups, my radio/mobile network returned.
I dint bother setting up my accounts or restoring backups as I expected it not to work.
I did not want to bring unforeseen things into the mix.
Restored 4.4, made sure it was unrooted and the tamper counter was reset. locked the bootloader.
Then skipped the google account part, only added wifi password. Then went through the system updates.
sleepingsword said:
I dint bother setting up my accounts or restoring backups as I expected it not to work.
I did not want to bring unforeseen things into the mix.
Restored 4.4, made sure it was unrooted and the tamper counter was reset. locked the bootloader.
Then skipped the google account part, only added wifi password. Then went through the system updates.
Click to expand...
Click to collapse
Mine did the same thing (worked for phone/texts but not mobile data), and in my searching there seems to be a related fix having to do with APN settings, but those are only accessible in settings, under mobile network, if you have a specific carrier.
Try searching around here for "APN XML" or "APN update" and you'll find steps on how to check/fix. Hope that helps.

Help! After Going Back to Stock OOS I have no mobile connection with Verizon!

I was originally going to use a custom Rom Havoc specifically. I am using the global unlocked model. After flashing stock rom using recovery tool and the flash all bat in the zip file everything is working on the phone except cell service The phone recognizes the verizon sim card itself but I have no data or signal. I tried using older 9.5.3 and 9.5.10 versions and it has made no difference. Factory reset has been tried as well and I still have no data. This is a big deal for me as my gmail account I use for my phone uses two step authentication. Is there anything I can do here or something involving needing to get TWRP back on my phone to resolve? Any help will be appreciated as I've spent last 2 hours trying to fix with no solution
It's also picking up my phone number and the information via sim card, but when I try to run a call/ send a text I'm greeted with a message that says To make a call turn off AIrplane mode. (Verified airplane mode is not on)
I"m not sure which thing I did that fixed it, but I flashed modem.img and also went to recovery and did a settings wipe not a full factory reset but just for the settings and it seemed to fix it

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