[Q] Mobile data goes dead after GPS kicks in - G2 and Desire Z Q&A, Help & Troubleshooting

For some reason, around a few days ago, my G2 started killing it's mobile data connection sometimes when the GPS is being called upon.
It happens around 70% of the time whenever a GPS signal is needed.
Also, the gps icon in the notification bar keeps on flashing.
Using a CM7.0.3 atm, but i've tried to wipe everything and install 7.1.0 and the problem persists.
Gonna try a stock TMo rom later as well.
I suspect it could be the carrier's fault, since i moved to a new carrier 11 days ago, but as it is in my country, unless i've got some kind of proof i can't really complain.
I've got a logcat dump (-b radio) from right after the 3G dying here. Main problem is that i can't really make any sense out of it.
I'd love your input regarding this, and if you can locate the problem in the logcat it would be completely awesome.
* Giving the phone to anyone to fix isn't really an option

Check these out:
http://forum.xda-developers.com/showthread.php?t=1159095
http://forum.xda-developers.com/showthread.php?t=397728
http://forum.xda-developers.com/showthread.php?t=428013
And check this out. You may need to try out another radio, and another rom, as I see you plan to. Go to G-Lite before you go fully stock, and I would try putting another radio on your CM7 rom before you go to G-lite.
Happy Hanukkah!

Related

[Q] Evo CM7 won't call, won't do data (after several days of working)

I recently rooted my Evo and put CM7 nightly 12 on it. All was well, I even installed the Savaged Zen kernel. Even better. Just yesterday I updated to CM7 RC2 to give it a shot. Today I went to work and had to drive to a remote area where I don't get service, so I put my Evo in airplane mode to save battery life. (this was after having it overheat while charging, could be a hardware issue) At the end of the day I turned the 3G radio back on and nothing... It connects and disconnects to the tower. It will not send data and it will not place phone calls on the 3G connection (WiFi works). I did a restore back to nightly 12 to see if maybe it was a problem with the OS. Nothing. A few hours ago it began functioning again, but after checking it a few minutes ago I have discovered it is back to no connection. (the signal bars bounce between nothing and full, but never shows the X for no signal) Has anyone else had an issue like this? Should I restore back to sense and unroot to take advantage of my warranty? If this has already been posted before please direct me to the right thread.
I'm having the same problem. I installed Cyanogen RC 2 and had no problem since it came out. I went on vacation to a beach, and during my trip I switched it on to airplane mode since I was in a remote location. After turning it back on, I noticed I can't get the Data Connection to work. The 3g bar doesn't even show up, and after messing with the settings trying to fix the problem I managed to do nothing. I tried using a backup I made from a week past, and encountered the same problem. Then I flashed the newest nightly and still no Data whatsoever. Wifi works fine, and 4g is acting weird but I got it to work a few times. Does this have something to do with sprint?
I think it is the same as the 4G 3G hang. I typically get it while tethering and the phone is normaly quite warm.
So I managed to fix the problem. I ended up flashing Koni's Elite Rom
http://forum.xda-developers.com/showthread.php?t=941055
I got an error that said "Error 67 registration failure"
I updated my profile and it was automatically fixed. I'm not aware you can do this on cyanogen stock rom, but I think you can dial a number that will do this for you.
After getting the 3g to work again, I flashed back to the stock cyanogen, and it is still working. So for now im good to go.
I do think is sprint and not the rom because I did a restore to warm z and was still having the same problems. Also my brother's evo was doing the same thing and he doesnt have cm7 on it.
I figured it was something to do with the profile... I restored all the way back to sense and attempted to update profile, but it doesn't seem to be doing anything. I will try that ROM and see if it does anything. Why can't they just make this easy and allow updating of vital software that allows the radios to work on WiFi or from SDcard? This is dumb.
I tried that ROM and nothing works. Not really sure what to do. I might have to restore to Sense and unroot to take it back... I really want to avoid that if at all possible.
Unrooted my phone and getting a free replacement from Sprint. Still unsure of the problem, seems to work randomly.
jmoh said:
So I managed to fix the problem. I ended up flashing Koni's Elite Rom
http://forum.xda-developers.com/showthread.php?t=941055
I got an error that said "Error 67 registration failure"
I updated my profile and it was automatically fixed. I'm not aware you can do this on cyanogen stock rom, but I think you can dial a number that will do this for you.
After getting the 3g to work again, I flashed back to the stock cyanogen, and it is still working. So for now im good to go.
Click to expand...
Click to collapse
I also have the same problem. No 3g data, gps, and 4g is acting weird.
I also had the same registration error number 67. My question is, how do you update your profile?

[Q] I can't seem to get 4G anymore on G2.. HELP?

I was using MIUI and it had 4G all the time... then I switched to Virtuous and it had so many problems with reception automatically.
I also tried installing the kernel to fix it, but it didn't work.
so i gave up and I went to CM7 and I am still not getting 4G signal anymore
and I get internet but its ridiculously slow now
PLZ HELP!
could be several things... if it's a rom/radio issue, you're s.o.l. until you can narrow down what's causing it there. did you perform a full wipe between Virtuous and CM7? did you use cwm recovery to perform the wipe? any other weirdness going on besides the apparent lack of HSPA+? I always, even going from one CM-based rom to another, perform a clean wipe either thru adb or, now, thanks to our buddy amazinglarry, using superwipeg2. you might give that a shot (you don't need to wipe efs data unless you're having gps issues, by the way) and install CM7 clean again.
I will say this: when I initially started using the CM7 nightlies, I ran into a weird issue where my "H" icon wouldn't show up, only 3G/E, but I was definitely on HSPA+ as evidenced from speed tests (there's no way I'd be getting 9000+kbps down on 3G). so, very first step: download Speed Test on the app market and, if you're in an area where HSPA+ is strong, see if you can tell whether or not the icon is not displaying for you like what happened in my case. how fast your internet seems to be going isn't really indicative of whether or not you're on HSPA+ or not, you can encounter horrendous lag browsing even in an area where it should be lightning quick. what ended up fixing the missing H icon for me, oddly, was a radio flash. the PC10IMG method of flashing radios is far from intimidating, so even if you're uncomfortable with that kind of stuff, give it a shot. I've had the best luck with the TMO-US post-OTA radio (26.03.02.26) in terms of a good balance between speed and battery life, but ymmv.
if none of that solves your problem, check your APN settings. here is a pretty thorough walkthrough on that.
aaaand if all else fails, call TMO and ask them to give you a hand. of course, don't tell them anything about custom roms or rooting, just tell them you're having a problem where your phone seems to not be receiving HSPA+ signal. it very well could be a goof-up on their end. when I first got my G1 back in the day, I had all sorts of trouble getting 3G and I eventually had to replace my sim card which fixed the problem automatically.
best'a luck.
thank you, it was the Radio. Something must have happened with it somehow you were VERY VERY helpful!
One thing you do have to know as well for Virtuous ROMs is that the so called 4G or H is actually represented as 3G+. So if you look at your signal and see a + behind it, it is using fauxG
EDIT: nm, just ignore what I just said. I completely passed over the fact that you switched to cm7.

[Q] how to start fresh?

I have a G2 rooted running CM7 RC1, but since I rooted back in January I have switched from an 8gb to a 16gb to a 32gb microSD card, and lately it has been acting up (drops calls, loses wifi, etc) so I wanted to start over with a clean slate with the latest CM ROM, kinda like reformatting a PC and starting fresh with a new OS. what would be the best way to do this? thanks in advance
Download the latest nightly of CM7: http://download.cyanogenmod.com/?device=vision and put on the root of your SDcard.
1) Enter recovery
2) Wipe data/factory reset (or use a superwipe+ .zip if you want a more "thorough" wipe).
3) Install zip from SDcard > Choose zip > CM7nightly.zip
4) Reboot System
5) Enter your gmail account, etc. get to the homescreen.
6) Fix permissions in ROM manager, reboot again.
And there's your clean slate. If you want to afterwards, you could always format your SDcard too.
rdulay8 said:
I have a G2 rooted running CM7 RC1, but since I rooted back in January I have switched from an 8gb to a 16gb to a 32gb microSD card, and lately it has been acting up (drops calls, loses wifi, etc) so I wanted to start over with a clean slate with the latest CM ROM, kinda like reformatting a PC and starting fresh with a new OS. what would be the best way to do this? thanks in advance
Click to expand...
Click to collapse
I would highly recommend the SuperwipeG2+ if you want a clean slate, so to speak. I had success using it to fix a GPS issue. Of course, everything Martonikaj said was exactly right - but I would definitely suggest the Superwipe tool. You simply flash from recovery rather than using the CWM factory reset option. You can find the file here:
http://forum.xda-developers.com/showthread.php?t=1044992&page=4
thanks for your replies. ive followed your steps to a T, flashed superwipe, latest cm7, google apps, reboot, fix permissions, sync my google account... but now i have more issues. i cant get tmobile wifi calling to connect, which is a major issue for me because i dont have cell reception in my house. the wifi calling app was a major reason i got the g2 in the first place. i figured it wasnt a clean install so i reflashed cm7 but get the same problem. also, my battery lasted 7 hours before dying with little use. before it died i checked and saw that cell standby had taken almost 80% of my battery use while it was just sitting untouched.
i searched these forums and there isnt much in terms of help for fixing the wifi calling app, so can anyone please help me out? i really like CM for its speed but these are issues that will force me to try a sense ROM. thanks in advance
Perhaps your build.prop needs to be configured to model: T-Mobile G2 instead of HTC Vision. I don't recall the way it's set in plain CM7. I know I had to alter it to get the T-Mobile My Account working properly.... unfortunately I don't use the Wifi Calling app so I can't be of much help in this department. I actually removed it all together.
Sent from my HTC Vision using XDA App
rdulay8 said:
thanks for your replies. ive followed your steps to a T, flashed superwipe, latest cm7, google apps, reboot, fix permissions, sync my google account... but now i have more issues. i cant get tmobile wifi calling to connect, which is a major issue for me because i dont have cell reception in my house. the wifi calling app was a major reason i got the g2 in the first place. i figured it wasnt a clean install so i reflashed cm7 but get the same problem. also, my battery lasted 7 hours before dying with little use. before it died i checked and saw that cell standby had taken almost 80% of my battery use while it was just sitting untouched.
i searched these forums and there isnt much in terms of help for fixing the wifi calling app, so can anyone please help me out? i really like CM for its speed but these are issues that will force me to try a sense ROM. thanks in advance
Click to expand...
Click to collapse
So, two things. First this battery drain... I would give it some time. Battery drain is always worse right after a flash. You might consider using the calibration app by marosige. It's free on the Market. Or you could wipe battery stats from recovery, but the application is super handy. Battery should improve with time. Mine has been excellent with all CM ROMS - after a calibration and a little time.
And while I could be totally wrong about the build.prop and the Wifi Calling app, you should check it. Using your file manager (Root Explorer or ES File Explorer, to name a few), navigate to /system folder and then find the build.prop, open it as a text document and check the lines:
ro.product.model=HTC Vision
ro.product.brand=vision
If this is what you see (above), try changing it to this:
ro.product.model=T-Mobile G2
ro.product.brand=tmobile
I've had to do this a few times in order to get T-mobile apps like My Device to work. I'd hate to see you abandon CM because of the Wifi Calling app...
T-mobile WiFi calling works fine for me on both CM7 and MIUI with a build.prop indicating HTC Vision and not T-mobile G2.
What exact error are you getting when trying to run it? Or whats happening?
As far as battery life, it will improve over time as the previous poster stated, but 7hours 100% to 0% seems a bit off unless there's a ton of heavy use.
I think I have an entirely different problem altogether. The reason my battery life was so bad was because it was searching for a network the entire time, and I can't connect to Wifi calling because T-Mobile doesn't recognize my phone. When selecting T-Mobile under network operators I get "Your SIM card does not allow a connection to this network" and when I try Wifi calling I get "You are currently not registered with the T-Mobile network. Would you like to register to enable Wifi calling?" and after selecting register I get "W005.4 T-Mobile Network Error"
I'm in over my head. I've tried rewipe data/cache, superwipe, reflash and battery/sim pull, so I guess my next course of action is to head to T-mobile and maybe ask for a new sim card?
rdulay8 said:
I think I have an entirely different problem altogether. The reason my battery life was so bad was because it was searching for a network the entire time, and I can't connect to Wifi calling because T-Mobile doesn't recognize my phone. When selecting T-Mobile under network operators I get "Your SIM card does not allow a connection to this network" and when I try Wifi calling I get "You are currently not registered with the T-Mobile network. Would you like to register to enable Wifi calling?" and after selecting register I get "W005.4 T-Mobile Network Error"
I'm in over my head. I've tried rewipe data/cache, superwipe, reflash and battery/sim pull, so I guess my next course of action is to head to T-mobile and maybe ask for a new sim card?
Click to expand...
Click to collapse
Looking back at your first post, this seems to be an extension of the same issue which inspired you to wipe and flash another ROM. I don't know if it's a radio thing, or a SIM card thing... which radio are you using, btw? Have you flashed any radios? If not, yes, I would definitely go and get a new SIM card. It could have just been going bad and now it's dead. You're not in over your head... yet. Try the new SIM card and see what happens.
yup it was the sim card... got a new one from the T-mo store and activated it and my phone is back online! had the same one since 2001 so it wasnt surprising. have never flashed a new radio so i knew that couldnt be it. thanks for your help, i think i got it from here
rdulay8 said:
yup it was the sim card... got a new one from the T-mo store and activated it and my phone is back online! had the same one since 2001 so it wasnt surprising. have never flashed a new radio so i knew that couldnt be it. thanks for your help, i think i got it from here
Click to expand...
Click to collapse
Glad you got it sorted out. I can't believe you've used the same SIM from 2001. Crazy...
rdulay8 said:
yup it was the sim card... got a new one from the T-mo store and activated it and my phone is back online! had the same one since 2001 so it wasnt surprising. have never flashed a new radio so i knew that couldnt be it. thanks for your help, i think i got it from here
Click to expand...
Click to collapse
Glad you got it figured out. I definitely wouldn't trust a SIM to hold its integrity and work properly 10 years after you got it lol.

[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!

Evo 4G GPS issue

So about 4-5 months ago, I became frustrated with the GPS woes on my otherwise perfectly operational Evo 4g and went ahead and bought a "refurbished" Epic 4g instead. I miss my Evo 4G like crazy and with work slow for the next couple weeks, I decided to revisit the issue to see if i can maybe fix the problem and re-activate my Evo 4G.
I am a relative n00b but know enough to have exhausted every possible solution I could find using the "search" function. GPS Status AGPS resets, ##GPSCLRX# fixes, as well as pretty much every single driver fix listed here: http://forum.xda-developers.com/showthread.php?t=1132412
thinking back to when the issue began, I think what I did was install a CM7 AOSP ROM over my then stock-rooted ROM, when the GPS didn't work, I kinda freaked out and nandroid flashed back to what i had before but the GPS issues persisted.
I thought about unrooting completely back to stock but if the GPS is the only thing not working, I'm wondering if that would even fix the problem.
It could be a kernel issue perhaps? I'd be more than happy to provide any info/screenshots/logs that might be helpful.
Any thoughts/suggestions would be very very much appreciated
*Edit : in the time since I made the post, I decided to follow this thread and install everything anew, ROM, kernel, GPS drivers/fix (AOSP all the way, CM7 + Savagezen + CM7 N39 Driver ). Still nothing with the GPS, the GPS Status app just will not lock on to a satellite.
ankur079 said:
So about 4-5 months ago, I became frustrated with the GPS woes on my otherwise perfectly operational Evo 4g and went ahead and bought a "refurbished" Epic 4g instead. I miss my Evo 4G like crazy and with work slow for the next couple weeks, I decided to revisit the issue to see if i can maybe fix the problem and re-activate my Evo 4G.
I am a relative n00b but know enough to have exhausted every possible solution I could find using the "search" function. GPS Status AGPS resets, ##GPSCLRX# fixes, as well as pretty much every single driver fix listed here: http://forum.xda-developers.com/showthread.php?t=1132412
thinking back to when the issue began, I think what I did was install a CM7 AOSP ROM over my then stock-rooted ROM, when the GPS didn't work, I kinda freaked out and nandroid flashed back to what i had before but the GPS issues persisted.
I thought about unrooting completely back to stock but if the GPS is the only thing not working, I'm wondering if that would even fix the problem.
It could be a kernel issue perhaps? I'd be more than happy to provide any info/screenshots/logs that might be helpful.
Any thoughts/suggestions would be very very much appreciated
*Edit : in the time since I made the post, I decided to follow this thread and install everything anew, ROM, kernel, GPS drivers/fix (AOSP all the way, CM7 + Savagezen + CM7 N39 Driver ). Still nothing with the GPS, the GPS Status app just will not lock on to a satellite.
Click to expand...
Click to collapse
there might not be a fix. i once did something similar of flashing a rom over another rom and my gps also stopped working so i got another evo
alexandroid5 said:
there might not be a fix. i once did something similar of flashing a rom over another rom and my gps also stopped working so i got another evo
Click to expand...
Click to collapse
that would be very sad indeed. Did you try going back to stock completely (unrooted) to see if that would help? that's the one thing i've not tried and I guess i'm just wondering if anyone thought/knows whether that would make any difference in this case.
(in the meanwhile I flashed miui's ice cream rom on the evo 4g using it mostly as music/media device and it's so freaking gorgeous...looks like i'll have to go get an S3 after all)

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