Got tired of dealing with unstable custom ROMs so I decided to flash back to stock. Everything went smoothly and everything is working great except my GPS refuses to fix. I tried going back to the earliest stock version available for downloading, rooting that, flashing 10g modem, still no luck. Flashed back to 20g, still no luck. Flashed E980H, still no luck. Flashed AOKP, no luck. Is my GPS just dead or what?
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When I rooted my Epic 4g installed a custom rom my wifi and gps would stop working. I installed the modem and I was using dx28.
I also tried rooting my brothers epic 4g to see that its not just not my phone and I came across similar results. I followed the forums step by step.
I got so fed up that I returned the phone to stock forum, however I am getting a little impatient on Samsung to bring 2.2 because 2.3 is already out and 3.0 is coming pretty soon it seems.
The Roms I tried were, Nebula ROM, ViperRom, Bonsai, SyndicateROM, Supernova..
Even using just the stock 2.2 froyo leak I still have the same problem. Am I doing something wrong here?
Even if you flashed everything correctly, this is caused by the modem. Start from scratch. DI18, DK28 Modem, whatever instructions you were given.
I had the same problem with my GPS..
To get mine working.. I flashed to stock DI18 then Flashed the modem separately (DK28 moden only) then Flashed to Full DK28.. then custom ROM
This was helpful as well...
http://forum.androidcentral.com/epi...s/47362-four-ways-fix-gps-problems-froyo.html
thirdly.. try clearing the GPS cache wtih GPSTest (found in Market)
I had to odin the DI18 then flash the DK28 update.zip to get mine to work correctly.
Yesterday my gps wasnt working at all. It would not lock on no matter what I did. I was on a custom rom and I tried wiping my data/cache, reinstalling maps (just for giggles), and a multitude apps from the market that help deal with gps problems (gps fix, gps status, toolbox, etc).
When all this didn't work I decided to odin back to the last official JB update and still no gps. On a whim I decided to odin back to an ICS firmware and that made my gps work. I have no idea but it did. I then odin to UVDLJC, installed TWRP's most recent and restored my backup of the custom rom I was using in the first place and gps now worked.
While I'm happy as heck that my gps is now working and that it was not a hardware issue I'm extremely curious what happened.
I have flashed many roms lately and I cannot think what a custom rom can do to gps to hose it or if it was just one of those things. I would of thought that when I originally did an odin to UVDLJC that would fix the issue but that didn't. Whatever the flash to ICS did fixed it but what in the heck could that of been?
I figure if I can find out or get an idea what happened then I can steer away from flashing certain roms, or just be prepared that flashing any roms at all can make this happen again.
Same here.
Hello, ddcoh.
I am currently having the same issue you had with GPS not working. I've tried everything from trying tedious Play store apps to trying many different roms and kernels (clean installing every time) to completely reverting back to stock including using TriangleAway in case that did any help. Nothing worked. I have been thinking about going back to ICS to see if that worked but the last time I tried to downgrade from 4.1.1 to 4.0.4 I ended up soft bricking my phone even though I followed the steps word for word.
Can you tell how you went about downgrading to ICS and then back to JB, please? I use my GPS a lot and I would hate to find out it's a hardware issue.
Typically, it's been when people are going from 4.2 to 4.1.
Zza1989 said:
Hello, ddcoh.
I am currently having the same issue you had with GPS not working. I've tried everything from trying tedious Play store apps to trying many different roms and kernels (clean installing every time) to completely reverting back to stock including using TriangleAway in case that did any help. Nothing worked. I have been thinking about going back to ICS to see if that worked but the last time I tried to downgrade from 4.1.1 to 4.0.4 I ended up soft bricking my phone even though I followed the steps word for word.
Can you tell how you went about downgrading to ICS and then back to JB, please? I use my GPS a lot and I would hate to find out it's a hardware issue.
Click to expand...
Click to collapse
Well I used odin to flash an T999_UVALEM which was a prerooted ICS rom. After booting it up I checked to see if GPS was working and it was.
I then used odin again to flash T999_UVDLJA which is a JB rom and booted it up also and saw that gps was working. Then I just restored a backup of a room I had been using and GPS still worked.
I've been out of town and noticed that after flashing a few roms that gps wasn't working so instead of doing all the above stuff I just flashed a cm10 rom. I believe I either used a cm10 nightly (or maybe 10.1, memory is hazy) or LiquidRom and that got the GPS working by just doing that. Not sure if that will work for you but you could always backup your setup using TWRP's latest and then flashing a cm10 rom and seeing if gps is working and if that fixes it then you could then just reboot and restore the rom you are currently on and that might fix your gps for you.
http://forum.xda-developers.com/showthread.php?t=1949687
This has randomly happened three times to me so far on different roms. I searched Google and XDA forums and maybe i am searching for the wrong terms so i will ask here.
I had Hyperdrive installed on my phone for 3 weeks with no problem, i was texting last night no problem. In the morning i woke up and could not send/recieve messages or calls but i could surf the web, check facebook, and everything. This was on and off of wifi. Reboot several times, Full wipe and restored to a previous nandroid, same problem. Another full wipe and reinstalled hyperdrive from scratch, same problem. Finally spoke with Tmobile, no help. Grabbed Carbon rom and then everything worked fine! Why?! Does anyone know why that happens? Same thing happend with the 4.4 Google edition rom. Worked for days then no network. Went back to carbon and it worked fine.
TLDR:Hyperdrive worked great for a week then lost all mobile except internet. Full wipe several times and problem persisted. Changed to Carbon Rom and it worked fine
Used Google Edition 4.4 for days and then it also lost all mobile except internet. Full wipe several times and problem persisted. Changed to Carbon Rom and it worked fine.
What is your modem?
Baseband version shows
M919UVUAMDL
Update it
You can grab the new nh7 modem from Shinyside in development, I ran with my MDL rom no problem.
Pp.
I updated to the NB4 and it seems to be working again. Ill see in a few days if the problem comes back. Its weird that it works great and then out of nowhere it acts up. Thank you for your help!
I will try the nh7 modem from Shinyside if i have the problems again. Or i will just stick with Carbon Rom, it works great but i wanted to try something different.
Nh7 modem has improved my signal all around, I noticed it on my previous rom and going to nh7 stock rom has been a good move for now.
Pp.
So it happened again with the updated modem. After 2 weeks of using Hyperdrive i lost service again. Reboot, wiped and used a backup. Still no service. Wiped and re-installed from scratch, still no service. Updated to the newer version of Hyperdrive, still no service. Wiped and reloaded Carbon and i have service again. I do not get it.
You might have to update your bootloader
serio22 said:
You might have to update your bootloader
Click to expand...
Click to collapse
Ditto, for Serio, that has been a common issue between KK roms and latest KK firmware.
Go for the nh7 bootloader , don't stress knox.
Pp.
I'm having a lot of trouble with my S2 right now. I've been running CM10 since I got it with no trouble at all. I updated to 11 when it came out, again with no problems. Basically what happened is I flashed the stock ROM so I could use the video camera, then just restored back to CM through recovery when I was done. I did that two or three times, then suddenly I have no mobile data on any custom ROM, OR on the stock ROM I made a backup for. Voice and text works fine, just no data, either 3G or 4G.
I eventually un-rooted and went completely back to stock, and that got data working. I rooted and got recovery installed, and everything's still working fine. But, no matter if I try to install Cyanogen fresh, or try to restore a backup, I don't get mobile data. If I restore a backup of the last stock ROM, data works fine. From inside the stock rom, I did a master reset and updated PRL and profile.
Does anyone have a clue as to what I'm doing wrong?
Okay, I noticed that my MEID and some other parameters were 'unknown', which according to Google can mean a bad modem. So I flashed a new one, and all is well.
I know this seems to be a fairly common issue, but I've read & tried everything I could with no luck. Wondering what other options I have.
Been on a few different ROMs on my S-OFF M8 (vzw). Went from LiquidSmooth 4.4.4 to LiquidSmooth 5.0.2 and lost GPS. Most solutions say flash back to stock, get a GPS lock, then restore nandroid. Problem is, even when I flash back to stock (either KK or L), I still don't have GPS. Nothing seems to work.
I've tried flashing back to stock rooted roms and I've tried RUU back to stock rooted roms. Never get GPS lock. Any other ideas or am I SOL here?