Develop Bugs

My 3G/4G data does not work when no wifi connection, but only on some roms.

I originally posted about this here: http://forum.xda-developers.com/showthread.php?p=30570751#post30570751
My post was: I just installed JBSourceryV2.0-LTE on Verizon Nexus and now have no data/4G bars/connectivity at all. I did a full data/cache/dalvik wipe before installing JBSourceryV2.0-LTE.zip and then gapps-jb-20120726-signed.zip. I have flashed several ROMs before and haven't had this issue. I have seen the white bars change from 3 to 4 a few times, but no data/4g connect. Calls and texts work, but web browsing and Play store do not. The blue bars mean no sync to Google? What am I missing? Turned off wifi and lost the blue bars. it seems I can only get the blue bars when wifi is connected. What's going on?
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So now I have seen the same thing on BAMF Paradigm and Dark ParanoidAndroid and Codename Android (all latest versions), but I have no problems using Eclipse. It's obviously something on my phone, but why does it work with Eclipse, nut not the others? What do they do that Eclipse doesn't (or vis versa)?

aldar5 said:
I originally posted about this here: http://forum.xda-developers.com/showthread.php?p=30570751#post30570751
My post was: I just installed JBSourceryV2.0-LTE on Verizon Nexus and now have no data/4G bars/connectivity at all. I did a full data/cache/dalvik wipe before installing JBSourceryV2.0-LTE.zip and then gapps-jb-20120726-signed.zip. I have flashed several ROMs before and haven't had this issue. I have seen the white bars change from 3 to 4 a few times, but no data/4g connect. Calls and texts work, but web browsing and Play store do not. The blue bars mean no sync to Google? What am I missing? Turned off wifi and lost the blue bars. it seems I can only get the blue bars when wifi is connected. What's going on?
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So now I have seen the same thing on BAMF Paradigm and Dark ParanoidAndroid and Codename Android (all latest versions), but I have no problems using Eclipse. It's obviously something on my phone, but why does it work with Eclipse, nut not the others? What do they do that Eclipse doesn't (or vis versa)?
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Click to collapse
check to see if mobile data is turned on and this belongs in Q&A and not dev.
settings -> more -> mobile networks -> data enabled

xredjokerx said:
check to see if mobile data is turned on and this belongs in Q&A and not dev.
settings -> more -> mobile networks -> data enabled
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Click to collapse
Yes, it's on. Toggled it on and off a few times to make sure.

I've also installed the latest radios and same thing. I guess I can do a complete wipe and see what happens.

OK, I reset my phone back to original using ...
"[TOOL] One click back to stock 4.0.4 for warranty/repairs"
http://forum.xda-developers.com/showthread.php?t=1743939
After that, the 4g data worked like it should.
So I re-rooted it using ...
[GNex TOOLKIT V7.8]
http://forum.xda-developers.com/showthread.php?t=1400871
and after that the same thing happened again, only white 4g bars unless wifi was connected.
Then I re-installed the Eclipse b15 rom that worked before (my backup was corrupt) and now it's doing it too, where before it worked. I have now installed at least 4 different roms and same thing happens ... 4 white 4g bars until I connect wifi then the 4bars go blue, while it's just white bars I have no data connectivity (web, play store, etc), but I can make calls and text.
Any ideas from anyone please would be greatly appreciated. Please.

Also, I've had this phone for about 3-4 months and have been putting ROMs on it ever since with no problems. This started about 2-3 weeks ago and, of course, I don't know what I would have done around that time that would have caused it. I don't remember doing anything that I don't usually do when rooting and installing ROMs.

Surely the unlocking, rooting, etc. must change something that effects the radios or something. I have searched for others with similar problems and cannot find a solution. Obviously it's not a common problem, but for some reason it is happening to my phone. It's got to be software because it works when at factory defaults.
No suggestions? Please... I've been rooting and applying ROMs since the Incredible came out, but I'm not a dev, I just can't figure this out. If you think I'm just not looking hard enough, then point me in a direction and I'll look.

Well, the weirdness continues. On my new warranty replacement phone I get 4g stock after using GNex Toolkit option 8 (unlock, root, rename, cwm, busybox all at once). But when I try JBsourcery or Eclipse, same old thing, no 4g!! I have rooted and ROMd my Incredible and my X2 probably 40 times each at least and never had any issues, there just isn't that much too it, so I don't see what can go wrong. I know since it's still happening on another phone it seems like I must be doing something wrong, but I don't know what.
Here is my process for my Nexus (from stock 4.0.4):
-GNex Toolkit option 8 (unlock, root, rename, cwm, busybox all at once)
-Setup newly rooted stock with my gmail acct info, verify it has 4g data.
-Copy over some ROM and gapps .zip files
-Reboot in to recovery
-Wipe data, cache & dalvik
-Install ROM
-Install it's gapps
-Reboot
-Skip gmail setup because I don't have 4g (don't want to use wireless because that's not the point, but even after I do, 4g doesn't work)
-... and no 4g data
I wait for 15 minutes, I check and uncheck airplane mode, I pull the sim card and reboot... nothing.
Just this morning I did the above process and tried the following ROMS and still get no 4g.
http://teamsourcery.com/ICSourcery/gnex/releases/JB/2.3/LTE/JBSourceryV2.3LTE.zip
http://www.teamsourcery.com/ICSourcery/gnex/releases/JB/2.2/JBSourceryGapps.zip
http://goo.im/devs/codenamedroid/stable/GalaxyNexus-VZN/Codename-Android-3.6.6-GN-VZN.zip
http://goo.im/devs/codenamedroid/googleapps/CNA-GAPPS-JRO03C-CameraFeatures-NoPicasa.zip
http://eclipserom.com/mods/click.php?id=174 --> Eclipse-2.0-Toro-Build15.zip
http://eclipserom.com/mods/click.php?id=173 --> gapps-4.1.1-Eclipse0910.zip

I have tried it with LTE-FC05 / CDMA-FC04 and I have tried it with LTE-FG02 / CDMA-FF02. I have even gone backwards radio-wise just to see if that changed anything, it didn't. Right now I can only get 4g data with stock 4.1.1 (4.0.4 too) unlocked, rooted, etc. Any time I install a ICS or JB ROM, the 4g doesn't work. I just really am at a loss. It sucks because I like changing ROMs like 1-2 times a week. *sigh*
So what is the difference, radio-wise, between stock and most ROMs?

Are there any logs I can look at that might point me in the right direction?

[Q] Data Connection Issues

Before I start let me explain I've searched for the answer to this and have yet to find any concrete answers. I've had my Verizon G'Nex since release and had it rooted before Best Buy had even run my credit card. I've been running SlimKat 4.4.2 Build 5 official and CWM Touch. Ever since I updated the ROM (clean flash) to the 4.4.4 experimental I've had problems with both 3G and LTE connecting to data. I have signal, in some cases "4 bars" worth, but it never actually connects to data unless I reboot the phone - that will last for a couple hours to a couple days then it's back to no data. I completely wiped the phone - data, cache, system, and sdcard...everything that CWM could possibly let you wipe - and then sideloaded the previously stated Slimkat which worked for months prior without issue. The problem still persists, and has gotten worse. I cannot use LTE at all. It will not connect regardless of what I do.
So my question here is what parts of Android affect data connection? Is this entirely ROM dependent, or does kernel have something to do with it? I'd rather not go through the trouble of finding another ROM that has speed and features of SlimKat, or randomly flashing kernels just to find it doing the same thing.

UTMorpheus said:
Before I start let me explain I've searched for the answer to this and have yet to find any concrete answers. I've had my Verizon G'Nex since release and had it rooted before Best Buy had even run my credit card. I've been running SlimKat 4.4.2 Build 5 official and CWM Touch. Ever since I updated the ROM (clean flash) to the 4.4.4 experimental I've had problems with both 3G and LTE connecting to data. I have signal, in some cases "4 bars" worth, but it never actually connects to data unless I reboot the phone - that will last for a couple hours to a couple days then it's back to no data. I completely wiped the phone - data, cache, system, and sdcard...everything that CWM could possibly let you wipe - and then sideloaded the previously stated Slimkat which worked for months prior without issue. The problem still persists, and has gotten worse. I cannot use LTE at all. It will not connect regardless of what I do.
So my question here is what parts of Android affect data connection? Is this entirely ROM dependent, or does kernel have something to do with it? I'd rather not go through the trouble of finding another ROM that has speed and features of SlimKat, or randomly flashing kernels just to find it doing the same thing.
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Well in not sure about this option being in your version of cwm.
However if it has wipe efs data as an option and you wiped it nothing that you do to try and fix your connections will work.
I found this out the hard way and had to buy a new gnex. Tried everything but couldn't get my efs data back.

DR3W5K1 said:
Well in not sure about this option being in your version of cwm.
However if it has wipe efs data as an option and you wiped it nothing that you do to try and fix your connections will work.
I found this out the hard way and had to buy a new gnex. Tried everything but couldn't get my efs data back.
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Click to collapse
No option about EFS. That's the thing that bothers me. I have voice and text, it can 'see' towers, it appears to be able to 'connect' to towers, but it's like it's not pulling an IP address or it can't contact DNS.

[Q] SlimKat 4.4.4 and WiFi Reconnect issue

First, I've had this issue since Build 6.8. I was hoping a Clean Install using Philz Touch Recovery v6.48.4, which is the latest, and selected Wipe Data and select Clean to install new ROM which Formats /data, /cache, /system. I also wiped Dalvik.
Once completed I did the following:
Clean Install of Slim-d2lte-4.4.4.build.7.0-OFFICIAL-5979
I then installed
Slim_full_gapps.BETA.4.4.4.build.7.x-190
Rebooted and waited for SlimKat to boot-up. WiFi/Data both full scale. Everything Restored just fine and things are running smooth.
Then after running a few errands outside of WiFi Range, I returned home within WiFi range only to find out that WiFi had not reconnected. It tells a WiFi connection is available but will not reconnect to it. So I go into Setting and select WiFi and tried to manually reconnect. It says connecting and then goes back to Saved Connection without connecting. This same thing on other WiFi connections such as McDonald's or other open WiFi Connections.
I then do a re-boot and everything is back to normal. WiFi connects without issue and again things are fine and running smooth.
Every time I leave WiFi range and then return within WiFi range, the problem re-occurs. A Re-Boot and everything back to normal.
One thing I've always noticed when doing a Clean Install as stated above, all of my previously stored WiFi connection are still there. Same on Ringtone/Notification Tones.
With the problem I'm having, could it be something that is not being wiped/cleared out during the Clean Install process. Or wondering if it could be somehow that the WiFi Radio has gotten corrupted.
I have also tried different Kernels but again the result is the same.
Hope this is not too much of a noob question and I have searched about everything I can think of. Wondering if anyone has had this problem or have any ideas of what could cause the problem.
I really hope I can get this figured out. Thanks

If you don't have to manually reconnect and enter your password, then its not being wiped. (Or you are restoring it from a backup.) Have you tested it after the clean flash, but before restoring anything? What are you restoring and how?
It sounds like a Rom issue otherwise and you should probably ask in the rom thread.

DocHoliday77 said:
If you don't have to manually reconnect and enter your password, then its not being wiped. (Or you are restoring it from a backup.) Have you tested it after the clean flash, but before restoring anything? What are you restoring and how?
It sounds like a Rom issue otherwise and you should probably ask in the rom thread.
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First I don't know what I've missed wiping. When I say restoring, I'm referring to letting Google re-downloading everything from the Play Store.
I know the WiFi radio are in a different location but like you, when I do a Clean Install by formatting /data /cache /system and wiping dalvik, I wasn't expecting all the stored WiFi connections to still be there, but they are.

Its possible its being restored by Google's backup, but I don't use it myself so I'm not certain about that. Its also possible the rom may save the config file elsewhere. Again though, I don't use cm/aosp based roms so I'm not too familiar with any of their specifics.
Next time you try a clean flash, do not sign into google during setup. Instead go straight to testing wifi to see if it still remembers the connections. Do you have it set to auto connect to any open networks? If so you might want to turn that off.
Have you searched or asked in the roms thread yet? It might be a known issue or something a few others have encountered and know how to fix.

DocHoliday77 said:
Its possible its being restored by Google's backup, but I don't use it myself so I'm not certain about that. Its also possible the rom may save the config file elsewhere. Again though, I don't use cm/aosp based roms so I'm not too familiar with any of their specifics.
Next time you try a clean flash, do not sign into google during setup. Instead go straight to testing wifi to see if it still remembers the connections. Do you have it set to auto connect to any open networks? If so you might want to turn that off.
Have you searched or asked in the roms thread yet? It might be a known issue or something a few others have encountered and know how to fix.
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Click to collapse
Ya I don't sign into Google at the initial start up after the flash because my WiFi is no able to connect. I will double check the auto connect feature. But I having this issue with other 4.4.4 ROMs also because I tired however on those ones I am amvle to toggle WiFi on but in advanced it has the region set to Europe and when I switch it to Canada it doesn't want to save the change

No WiFi on a refurbished G4, did T-Mobile screw me?

Last week I shattered the screen on my G4 and ordered a replacement through my warranty. I got it today and went to unlock my bootloader immediately, flashed TWRP, and hopped on a custom rom, only to discover that I had no WiFi. Every other device in my house is connected fine so it's not the internet.
From there I figured it must've been a bad flash and used LGUP to flash the 20v kdz (the phone was already on it) so i could start over again with a new radio/modem. I didn't bother setting the phone up again and just rebooted into the bootloader to flash TWRP again, and proceeded to flash AEX again but with f2fs. Again, no WiFi. Thought it must be the rom and clean flashed AICP, no wifi. Clean flashed crDroid, no wifi.
At this point i got desperate and started messing with the wifi settings because a series of reboots could get me WiFi for a few precious seconds, maxing out at about a minute at one point.
Most of the time the WiFi wouldn't turn on at all but a reboot could fix it, but nothing would connect after putting in the password. Trying to manually connect would cause the Wifi to freak out and instantly connect/disconnect or give me a few seconds of wifi before it happened. Only a reboot or airplane mode would "fix" this before I'd have to start the process over again.
I also tried the "Turbo orthodox clean" which only resulted in me not having an internal storage partition and roms not flashing it until i had to kdz.
This happened on all the roms I tried today including an untouched stock after a kdz.
AFAIK I did everything by the book and i cant think of anything i could've done wrong to cause this. Could it be because i didn't boot up into the stock rom the first time i unlocked the bootloader? I did it the rest of the times that i had to kdz.
Wtf can I do at this point? I'm typing this on freshly kdz'd rom with nothing but xda labs installed on top and no settings changed. Could it be a hardware problem? Is it my f*ck up? Should I go through T-Mobile/the insurance again? All i can think to do now is take a full nandroid backup on the old phone and try restoring it on this one in the morning.

Woke up this morning and still had no WiFi, so I carried on with my day as usual. Got home after the gym, took a nap, and woke up to perfectly functioning Wifi
I haven't changed anything at all to fix this, just left the phone alone for ~10 hours. Rebooting didnt break it again either so I'm going to try my luck with crDroid
Sent from my LG-H811 using XDA Labs

Brandon9231 said:
Woke up this morning and still had no WiFi, so I carried on with my day as usual. Got home after the gym, took a nap, and woke up to perfectly functioning Wifi
I haven't changed anything at all to fix this, just left the phone alone for ~10 hours. Rebooting didnt break it again either so I'm going to try my luck with crDroid
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Click to collapse
If it happens again check the MAC address of your phone in WiFi settings. You will get no connection when the MAC is all zeros which can e.g. happen on a bad flash.
.
Sent from my LG-H815 using XDA Labs

steadfasterX said:
If it happens again check the MAC address of your phone in WiFi settings. You will get no connection when the MAC is all zeros which can e.g. happen on a bad flash.
.
Click to expand...
Click to collapse
Thanks, I do have the MAC and WiFi in crdroid but it took a reboot. NEVER MIND. It just went out as I typed that. I'm back to getting it for only a second after turning my WiFi on and off. I cleared my dalvic/cache a minute ago because my SD card showed up as corrupted to fix that, but now I lost the WiFi again. I went about an hour with WiFi but no mods or apps installed and it just went out after flashing magisk + 3 modules and restoring my apps from titanium backup so I'm going to try undoing those one by one to see if that's it
Sent from my LG-H811 using XDA Labs

Pixel 2 XL cellular data issue with any custom ROM

Recently i have entered some state in which mobile data is busted on my phone. I have tested multiple android pie roms to find the same thing in each. When i flash the latest stock android (PQ1A.181205.002), mobile data is fine. In this broken state i can see the signal bars with a little 'R' by them (notification on lost mobile data connection Data roaming is turned off. tap to turn on). Every time i navigate into Settings> Network & internet > Mobile Network > Advanced > Carrier Settings. The screen will flash and take me back to Mobile Network, this happens with every custom rom tested. The app SprintDM tries to set up the phone 5 times and then fails. Phone codes seem to have no effect. the code 4636 will allow me to view current info in which it says mobile data disconnected. It doesn't appear to matter if i connect to wifi and allow the basic stock apps to update first. Reboots do not help. I even tried flashing the modem and radio for PQ1A.181105.017.A1 and OPM4.171019.021.R1. I can also say the phone app shows a message "This device is not supported and phone calls may not work correctly". Phone calls work fine. Previously i was running LiquidRemix (10.0.2) just fine, everything working. Randomly mobile data died so i tried a update to LiquidRemix (10.0.3) and still busted. Tested multiple other PIE roms to find the same. And again if i flash any stock firmware mobile data is fine. Anyone else see this or have an idea of how to fix this for custom roms?

I rooted my pixel2xl yesterday and installed Havoc OS.
Today I was out with my family and was trying to navigate via Google maps and it continuously displayed error "try again"
Status bar was showing lte connection then I tried opening chrome and was unable to use mobile data even if it being on and active.
I am planning to move to Stock again tomorrow

vipulkarkar said:
I rooted my pixel2xl yesterday and installed Havoc OS.
Today I was out with my family and was trying to navigate via Google maps and it continuously displayed error "try again"
Status bar was showing lte connection then I tried opening chrome and was unable to use mobile data even if it being on and active.
I am planning to move to Stock again tomorrow
Click to expand...
Click to collapse
vipulkarkar, did you find out any other additional info on this? I went back to stock and everything is fine but would very much rather be running a custom rom.

Just seeing this post, fortunately, I've not run into this issue on stock or custom roms ... What I do run into, on stock or custom roms, is when I leave my house, with a T-Mobile CellSpot, I tend to switch to 3G or H+ in an LTE area. I sometimes have to cycle airport mode a couple times to get LTE back.. So odd and annoying!

Is there something we Sprint users could do to help the devs include Sprint connectivity in their roms? Like provide a nandroid backup of our device or ?