Develop Bugs

3 month old nexus no data or cell connection

My 3 month old galaxy nexus lost the ability to connect to the cell network, wifi and bluetooth are fine but when i scan for an apn it errors out, and i can not add an apn manually. i followed the thread to bring the phone back to factory defaults and re locked it like it was going back for warranty and that did not help, so it has the factory radio, bootloader, recovery and os 4.0.2 on it now.
do i have a $600 paper weight now? has anyone ever heard of this happening?

More than likely a SIM error if you've restored to stock and it still happens. Do you have another device or SIM to swap and test?

the sim is now in my blackberry torch that i have as a back up phone and working, even with out a sim in it there is no notice on the screen that says please insert sim card, but i am not sure if thats normal or not.
looking at the *#*#4636#*#* screen the radio keeps going from emergency calls only to radio off and back again.
edit: it does say no sim inserted, but its only on the lock screen so i missed it.

so looks like i am screwed with this phone, the store i bought it off the guy is freaking out saying why did you root it, (he keeps calling it jailbreaking) why didn't you just leave it alone, my response is why did you put those rims on your car, why did you change your desktop wallpaper, what can i say, i love AOKP rom.
but this is a hardware related problem, i put the stock radio and everything back to stock so what else could it be but hardware?
has no one ever heard of this problem with a gsm galaxy nexus?

The only time I saw this issue someone flashed the AOKP tablet rom.

El Daddy said:
The only time I saw this issue someone flashed the AOKP tablet rom.
Click to expand...
Click to collapse
i had been using the aokp rom for a few days before this started, and i just checked that is was the gsm nexus rom.
what fixed it on the one you heard about?

grinmaul said:
My 3 month old galaxy nexus lost the ability to connect to the cell network, wifi and bluetooth are fine but when i scan for an apn it errors out, and i can not add an apn manually. i followed the thread to bring the phone back to factory defaults and re locked it like it was going back for warranty and that did not help, so it has the factory radio, bootloader, recovery and os 4.0.2 on it now.
do i have a $600 paper weight now? has anyone ever heard of this happening?
Click to expand...
Click to collapse
You are not the only one buddy. I am just south of Chicago and mine hasn't worked for over a week. I have full signal bars, but 7/8 of the time it reads that I'm not connected to the mobile network (as in my signal bars hardly ever turn blue). Even if it looks as if I have a connection EVERYTHING just times out. I haven't had the nerve to send it back to Singapore for a repair. The only reason I even own this phone is due to my drug abusing postal carrier inputting they delivered my GS2 and then simply didn't. Without signature verification its just a he said/ she said.

[Q] Wifi loses connectivity after period of inactivity

Hello,
I've searched around the Epic 4G Touch forums as best I could, but sadly I couldn't find anything that was exactly this problem (although I found some interesting articles about wifi sleep time but they don't seem to apply). I'm experiencing an annoying issue where I can connect Wifi just fine, but if the phone is left for a small period of time (~10 minutes), wifi appears as if it's still connected, however it cannot send/receive data. When this happens, the wifi status says it's "connected", but there is no data connection. The only way to to get the data back is to turn off wifi, wait for 3/4G connection to initialize, then turn Wifi back on to refresh it...then it's fine again until I set the phone down again.
I had this problem on stock EL29, so I rooted and flashed Phantom Blazer ROM (very cool ROM, but I'm still experiencing the same issue). After reading the threads on here about wifi sleep times (apparently they're backwards with ICS roms), I've experimented with every setting, yet I still have the same issue--Wifi is fine as long as I'm using the phone, I set it down, after about 10 minutes pick it back up, says it's still connected, but no data connection.
has anybody experienced this problem with this phone? I'm about to unroot my phone/go back to factory so I can take it in to a Sprint store, the problem is they (trying not to be offensive) don't seem to know very much about this device. I thought I'd ask the pros before I return it, get an iPhone, and have to eat my words about how cool Android is vs. iPhone in front of all my friends. I'm hoping there's a reliable ROM or app that can resolve this vs. having to just replace the device!
Thanks for your help!

I'm not the only one
I'm not the only one with this problem:
edit: I can't post links to androidforums.com or anywhere else, but this same problem is all over the interwebs and nobody has a solution.
I'm sure it's not my router as my ASUS tablet/laptops/girlfriend's iPhone experiences no connectivity problems. I'm thinking this is a hardware problem with some of these devices. I will unroot/reset to factory tonight and let you know what happens.

What channel is your router on? And what type is it A/B/G/N?

This is s known TW ICS bug, most likely kernel related. Almost everyone is having this issue and there is no fix until Samsung decides to repair it. There are quite a few posts similar to this one. If you're using XDA's search function, it's not very good. Try using Google next time and search XDA that way.
Sent from my SPH-D710 using Xparent ICS Tapatalk 2

Hey guys, thanks for the response. Just before I unrooted/reset to factory I tried one last solution--download an app called "Wifi Fixer". It has resolved a lot of these problems. It's not 100%, but after testing it for a day so far, I've only had to manually refresh the connection once or twice. It's a lot better, even liveable, and I won't be resetting to factory afterall, at least not until Samsung provides an update. So if anyone is having the same problem, try Wifi Fixer, hopefully it gives you a similar level of success...I'm not super happy about having to run another background process all the time, but it doesn't seem to affect battery, and the fix it provides is worth it to me.
Cheers!

Huh - a couple of things. Noticed this problem crept back in FF18 and didn't know why until I went back and checked the wpa_supplicant.conf that I'm using. The line ap_scan=2 was missing; after adding it back in the signal strength is back to full and stable.
I'll bump the thread but it appears the config changes here still hold after all:
http://forum.xda-developers.com/showthread.php?t=1569348
This should also avoid having the WiFi fixer there as you can specify the country in wpa_supplicant.conf manually.

Thanks for looking in to this! A couple questions from a noob like me though:
When you say the problem crept back in FF18 ... what does that mean? Is that something that exists in the "stock" version of the Epic 4G touch from Sprint?
The manual config file tweaks you're describing ... is that something I can perform myself?
Basically I'm wondering if it's "safe" to revert to stock in order to get consistent wifi signal, or if it's something I'm experiencing because of the ROM I'm using.
Thanks!

"loosing" 3G on 4.3 Toro

So i was wondering if anyone else is having this issue.
for reference, I am on VZW, with the 4.1.1 radios (as the updated 4.2 radios had me locked into 3G no matter what, at work)
and i ALWAYS do a complete wipe (data/cache/dalvik/system) between ROM flashes.
4.3 bootloader as well.
anyway, this has been an issue since 4.3 hit my device...anything from pure AOSP to CM builds.
when I am on 3G, the bars will go gray and i cannot pull down data at all. (and yes i know the difference between blue and gray bars, I'm saying ANYTHING will say "network not available" not just google apps)
toggling data on/off fixes the problem. I ususally run into this problem 2-3 times a day and it is ALWAYS on 3G.
its not a huge deal, just more annoying than anything else. just wondering if I am alone here. going to be giving the 4.2.2 radios another chance and see if that fixes things.

Having this exact issue...it's driving me nuts as well. At this point I believe I've tried every radio with no luck. Going to try jumping back to 4.2 soon to see if it solves the issue.

Me too
+1
I love how much fast my GNex is on 4.3, but I don't think I can deal with this data bull**** much longer. Frankly, I'm really getting tired of getting a new version of Android, being happy at first, then finding the HUGE bug that makes my phone a horror to use. WHY HAVE YOU FORSAKEN THINE VZW GNEX, GOOGLE!?!?

Just an update, as I updated my radios right around the time I updated to 4.3. I just switched back to CM 10.1 and all my data connection issues went away. That means it definitely has to do with 4.3 builds and not the radio firmware.

ericbarch said:
Just an update, as I updated my radios right around the time I updated to 4.3. I just switched back to CM 10.1 and all my data connection issues went away. That means it definitely has to do with 4.3 builds and not the radio firmware.
Click to expand...
Click to collapse
That's right, 4.3 sucks.
Sent from my Galaxy Nexus using Tapatalk 4

Edit build.prop and include this line:
ro.telephony.default_cdma_sub=0
Data issues are being reported on nearly every rom for the gnex. My data reconnect /switch went from about 60 - 90 secs to a reasonable 5-10. (don't forget to reboot to apply changes)
Sent from my Galaxy Nexus using xda app-developers app

So happy I found this thread!
I'm having the SAME issue: GSM i9250 on Straight talk ATT sim (apn setting are updated and correct). Stock not rooted; been happening since 4.3 Update. From what I've read even folks on the N4 are having similar issues.
I've factory reset 3-4 times for testing purposes (back to "normal" for about an hour then those pesky gray bars and NO data on 3G/4G).
I have to do the airplane mode toggle every 1/2 hour if I'm really using the internet. Big pain in the ass!
I always rooted my devices in the past and haven't done the GNEX because I always felt stock was smooth enough for my purposes (quasi-work-phone and I need stability). If I have to deal with this bull-sh&% I'm probably gonna have to root and install a 4.2 ROM.
Any-whoo...thanks for letting me rant :^)
Hopefully "kit-kat" will help?

same issue its very annoying... did anyone find the fix ??

ffejy462 said:
Edit build.prop and include this line:
ro.telephony.default_cdma_sub=0
Data issues are being reported on nearly every rom for the gnex. My data reconnect /switch went from about 60 - 90 secs to a reasonable 5-10. (don't forget to reboot to apply changes)
Sent from my Galaxy Nexus using xda app-developers app
Click to expand...
Click to collapse
Is this a fix?
My issue seems to be on 4g as well. If the phone switches from wifi to 4g or if it goes from 4g to 3g and back to 4g it shows a connection with bars but never connects to data again.

Toro Network Drops, 4.2.2 and 4.3

Hey guys - my VZW Gnex (it's a refurb to replace my old one with a bad screen) has been having excessive network dropouts lately. When I boot the phone, it doesn't acquire signal for over a minute, when I place a call I lose signal afterwards, and data drops out randomly. The device will say it's connected (blue bars), although I cannot use the internet. Also, it'll randomly loose cellular connectivity, although indicate that it has signal. I'll go to send a text and it'll immediately have send errors, and I am unable to make or receive calls, even though it shows I have signal. To fix, a reboot is always necessary. This has happened on 4.3 (crDroid) and 4.2.2 (CM 10.1.3 stable). It has happened across all the different radios, 4.0.4 and up, and across several different kernels. Does anyone have suggestions, the phone isn't really usable if people can't get in touch and I'm unaware that they can't.
EDIT: When I go into the phone info menu *#*#4636*#*# when the radio has no data, it says preferred network is "unknown." If I change it, the setting immediately goes back to unknown.

U might need to go through the insurance and get another one.
Sent from my Galaxy Nexus using XDA Premium 4 mobile app

eriscentro said:
Hey guys - my VZW Gnex (it's a refurb to replace my old one with a bad screen) has been having excessive network dropouts lately. When I boot the phone, it doesn't acquire signal for over a minute, when I place a call I lose signal afterwards, and data drops out randomly. The device will say it's connected (blue bars), although I cannot use the internet. Also, it'll randomly loose cellular connectivity, although indicate that it has signal. I'll go to send a text and it'll immediately have send errors, and I am unable to make or receive calls, even though it shows I have signal. To fix, a reboot is always necessary. This has happened on 4.3 (crDroid) and 4.2.2 (CM 10.1.3 stable). It has happened across all the different radios, 4.0.4 and up, and across several different kernels. Does anyone have suggestions, the phone isn't really usable if people can't get in touch and I'm unaware that they can't.
EDIT: When I go into the phone info menu *#*#4636*#*# when the radio has no data, it says preferred network is "unknown." If I change it, the setting immediately goes back to unknown.
Click to expand...
Click to collapse
This is a known issue with 4.3 ROMs. I'm not sure about 4.2.2. It looks like CM 10.2 may have a fix for it in the next nightly. One known fix is to edit build.prop to include
ro.telepohny.default_cdma_sub=0
Thank has worked for me.

dlabadie said:
This is a known issue with 4.3 ROMs. I'm not sure about 4.2.2. It looks like CM 10.2 may have a fix for it in the next nightly. One known fix is to edit build.prop to include
ro.telepohny.default_cdma_sub=0
Thank has worked for me.
Click to expand...
Click to collapse
I've added that line, doesn't help

CM11, random data blackout

Hoping this might ring a bell with anyone who has fiddled around with the GN and CM11.
The CM11 update notification won me over and I pushed CM11 (11-20140308 snap - toro) a few weeks ago.
Interestingly enough I saw a HUGE battery drain improvement. Possibly an oddity unless others have noticed this too.
Anyway, the big issue when using CM11 is random data blackouts. The phone can be on 3G, 4G, or Wifi and it will act like there is no data access. eBay app and Chrome give the 'no connection' type error with other things like email just not updating.
The fix so far is to reboot the phone. As soon as it comes back up the data portion works perfectly. Not the most time effective solution especially if trying to get important data on the go.
I know Google has marked this phone as past it's prime in terms of support, but with CM still supporting builds for this device I'm hoping something may sound familiar and somebody could give some words of wisdom for this problem. With the Nexus 6 device slotted to be released in the summer/fall timeframe I'm holding out on replacing the GN.
Ideas anyone?

change other kernel/boot.img
Sent from my Galaxy Nexus using XDA Premium 4 mobile app

well yes but I was also interested if anyone else may have been experiencing this.

if this is the same issue I've seen in some ROM threads then yes you aren't alone.
instead of doing a reboot, have you tried toggling airplane mode on then off? if that works, you'll spend way less time vs waiting for boot up

glad to know I wasn't alone on this one!
The 'no network found' issue just came up a minute ago. Probably had tried the airplane mode before but in a hurry I defaulted to restart.
The quick switch between AP mode and back did bring the connection back, although with the phone starting up fairly quickly the different between doing AP mode or restarting seems to be differently by only a second or two.
If this has been seen with some ROMs, what have people turned to as an alternative?