Develop Bugs

[Q] Stuck on bootloader after changing screen density with Rom Toolbox

Hey guys. As the title suggests, I can't boot my Note 2 (sgh-i317). It is stuck on the AT&T logo and while it's stuck there it vibrates slightly every 5-6 seconds. I tried changing my screen density to 240 and it worked for a bit but annoed me. then I went to change it back and got this problem. I accidentally set it to 360 I think though, instead of 320. I have wiped the cache. I have wiped the data. I have installed roms countless times already with Odin. I'd imagine my reset counter is at over 10 just from today.
I've been searching on google and these forums for hours and have seen many suggestions, but none of them have worked. The farthest I have gotten was to get the phone to boot, but once I start going through all the setup stuff I begin getting error popups saying that Touchwiz home has stopped responding. As soon as I push OK the error immediately pops up again. I seriously can not do anything with my phone.
Is there any way to get a stock build.prop file somewhere for this phone, and if so, how would I install it if I can't even boot into the device?
Any help would greatly be appreciated. I have no idea where else to turn here. Thanks!
-Mark

Do you have a backup to restore from recovery ??
If not....then power down the device and remove the SD card and place it into a PC card adapter...
Then download or copy over a suitable rom...
Then place the SD into the phone and boot into recovery...
Fully wipe the device and flash the rom of choice...
Reboot....set....profit....g
Edit:
Are you certain that your power button is not stuck ?
If the method I suggested fails... and rebooting occurs with vibration...then your power button is suspect....g
Sent from my SAMSUNG-SGH-I317 using XDA Premium 4 mobile app

Thanks. Well I got it to boot finally, however there's been a couple issues since. It's on 4.1.2 right now...
1. Whenever I try to officially update to 4.3 through the settings, it downloads, then when installing it ALWAYS fails at 25%.
2. This is a big issue. My data connectivity is gone. I have no 4g access period. If I'm not using a wifi network, I can't do anything online, period. I've reflashed numerous times, and can't get it to recognize the network. I can make calls just fine, just no data.
I've tried wiping data and going to factory reset, but this doesn't help in any way whatsoever. I've popped out the battery and sim card and reinserted after a few minutes, still to no avail.
The funny thing also, last night my friend, who has the same phone, updated to 4.3 and got the EXACT issues I've been dealing with. The ONLY thing in common is that we have both rooted our phones in the past. When I first got 4.3 it worked fine. It wasn't until I rooted that these issues began. My friend's phone was not rooted, however it had been in the past. I'm thinking that this 4.3 update has an issue with phones that are rooted or have been at some time. I don't know how it can tell, but that's all I can think of. his phone now is also a doorstop, like mine.

K, fixed data connectivity from another thread here. For some reason, even if I wipe my system, it seems to still keep settings intact. In this case, nothing set in APN. Seems the more I try to fix my phone, the more problems show up.

If you updated to official 4.3...then yes ...a whole new host of problems are yours until the devs figure out the locked bootloader and it's knox flag...
Backups won't restore....and so forth...
Read around ....you'll see...g
Sent from my SAMSUNG-SGH-I317 using XDA Premium 4 mobile app

[Q] Help please

Hi, guys im having some issues and would like some expertise. Okay so i have an s4 the model is m919v but the model is unrelated to the problem. I was running custom roms and have been for a few months and i have a phone that has a locked sim. I heard from someone that i can flash an older version of my modem and get the service menu to unlock... point is i did it and it didnt unlock BUT THATS NOT MY ISSUE. I decided to then revert to stock because my phone was being really glitchy after i tried the unlock. Now i restored my phone and got a custom recovery installed a custom rom that was working flawlessly before is now also being glitchy the same way after i tried to unlock it,
These are some glitches im experiencing:
1) phone app is taking a long time to load and it doesnt type in numbers fast
2) when i call someone it just freezes and i cant go to the call screen
3) no notification sounds coming from my phone it just vibrates but doesnt ring
and im sure a few more
IM SURE THESE HAPPENED AFTER I WENT INTO THE SERVICE MENU AND TRIED TO UNLOCK MY DEVICE.
Someone please tell me what i can do to fix this because ive already reverted to stock once.

zee24 said:
Someone please tell me what i can do to fix this because ive already reverted to stock once.
Click to expand...
Click to collapse
You just might want to re-flash the stock rom and before rebooting, clean all the cash and do a factory restore. That should restore the operation to your device.
Only your Pure stock roms will contain any of the modem/boot stuff, if my information is correct.
Aloha and Good Luck!

Can't get stock working with messed up EFS

Alright, so I just started using my OG on ringplus and decided to root with framaroot (I think I used gandalf mode). Anyways later on the phone started showing Demigod kernel issues (On stock zvc). So I went with Teenybin and flashed the unlocked bin using LGNPST. Same kernel issue. However custom roms don't show this issue. Now, the problem is I need to go back to stock so I can get to diag mode since my esn info got corrupted. Now this wouldn't be a problem since I'm alright with cdma workshop or DFS (I only want to repair the ESN), but of course I need to go back to stock. Any help is appreciated. Thanks!
EDIT: I should probably add that I have tried several roms, and several different bins (including full sized ones) yet I always come back with the same black screen with the Demigod kernel error. One more thing is that I have all the information that needs repairing, just can not use it until I get a working stock image.

Do custom stock roms work such as optimus DE or lifeless?
Also theres a guide somewhere on how to activate diag mode on aosp roms. Id link you but im on my phone. Should come up easily on searching the forums. i know theres a link to it in the irc chatroom.
Sent from my Sprint LG Optimus G on Page Plus.

Strangely aosp roms work fine minus service. I did try the guide, but for some reason I couldn't edit any of the efs settings even after I flashed the efs recovery zip they had. DFS and cdma workshop just bring up failed or errors when in diag mode. So far I tried DE, but I'll have to try Lifeless and see what happens. It's just so weird how the demigod kernel issue keeps appearing on stock and stock based roms, the phone freezes and reboots to a black warning screen.

Cody92 said:
Strangely aosp roms work fine minus service. I did try the guide, but for some reason I couldn't edit any of the efs settings even after I flashed the efs recovery zip they had. DFS and cdma workshop just bring up failed or errors when in diag mode. So far I tried DE, but I'll have to try Lifeless and see what happens. It's just so weird how the demigod kernel issue keeps appearing on stock and stock based roms, the phone freezes and reboots to a black warning screen.
Click to expand...
Click to collapse
Maybe try a stock rom with a custom kernel made for it like viper?
Sent from my Sprint LG Optimus G on Page Plus.

DQEight said:
Maybe try a stock rom with a custom kernel made for it like viper?
Click to expand...
Click to collapse
Where is viper? I didn't know it was made for this hardware...
Cody92 said:
Strangely aosp roms work fine minus service. I did try the guide, but for some reason I couldn't edit any of the efs settings even after I flashed the efs recovery zip they had. DFS and cdma workshop just bring up failed or errors when in diag mode. So far I tried DE, but I'll have to try Lifeless and see what happens. It's just so weird how the demigod kernel issue keeps appearing on stock and stock based roms, the phone freezes and reboots to a black warning screen.
Click to expand...
Click to collapse
Try this thread... If you flash the teeny bin it will give you an unlocked boot and recovery.
http://forum.xda-developers.com/showthread.php?t=2230106
I think that might fix your problem. Grab the teeny and not the full. The full is huge and will erase your info and is not necessary.
Try that out and come back. I am all but sure it is related to the bootloader/recovery.

dopy25 said:
Where is viper? I didn't know it was made for this hardware...
Try this thread... If you flash the teeny bin it will give you an unlocked boot and recovery.
http://forum.xda-developers.com/showthread.php?t=2230106
I think that might fix your problem. Grab the teeny and not the full. The full is huge and will erase your info and is not necessary.
Try that out and come back. I am all but sure it is related to the bootloader/recovery.
Click to expand...
Click to collapse
I probably should have said when I used LGNPST I used teenybin originally. I just downloaded it again now and flashed teenybin once more but got the same problem. I've tried lifeless and another stock based rom, but I still get the demigod crash. I used both TWRP and Philz touch to install stock roms. When I use an aosp rom and get into diag mode through the terminal I still can't use cdma ws or dfs to edit anything. I'm thinking stock might solve this, but that demigod error follows me everywhere. This problem is such a pain.

Viper Is here
http://forum.xda-developers.com/showthread.php?t=2486990

Alright I tried the lifeless stock rom and ended up with the demigod crash before booting up. I also received it when I tried the viper kernel. One more weird thing happened though. When I tried going into diag mode from the terminal on cm11 (4.4.4) windows didn't recognize it and I got the demigod crash. Could it maybe be that the dll for the lgnpst program is messed up so whenever I try to flash teenybin it corrupts the bootloader (I've done this too many times)? I'll try downloading and reinstalling lgnpst to see if it helps.

Alright, so I tried playing around with it a bit more and only got more problems. So after reinstalling lgnpst it seemed to make a difference, but still have similar problems. I ended up flashing a full bin of zvb after messing with teenybin for a bit, but it kept freezing followed by a reboot (tried factory resetting it too). Then I flashed the full zvc with more issues. It kept restarting again. So I flashed the unlocked teenybin and the power started acting weird, working sometimes (I've had this before when messing with it earlier). After I finally got it started from being connected to a charger for a while the phone got stuck on a new demigod error. This one said "Watchdog bark detected" and the screen was a weird yellow tint. Custom roms still work though for some reason. The last part is the meid and imea info shows up as unknown after flash the zero efs file with twrp. This phone is starting to get real annoying.
UPDATE: Alright, so after I flashed to zvb without success I figured there wasn't much hope on downgrading. However, I found there are some older ics bins. I downloaded the zv7 bin and flashed it. So far the phone has not crashed. I'm not quite sure why, but the jelly bean stock firmware causes my phone to crash. I will add more details if I can get it back working on Ringplus.
Some more details: So for some reason the zero out efs isn't working for me. All of the imei and esn info all shows as unknown on my phone. Stock hasn't crashed yet, but the spc seems to be corrupted or something. My old spc code and all 0's don't work. Cdma ws, cdmadevterm, and anything else I use to get into diag stuff always freezes when attempting the read for the phone. I hope my efs isn't corrupted beyond repair.

Any ideas? Short of replacing the logic board, I'm not really sure what to try. I've used 2 different computers to try and mess with the efs, but like I said the programs would hang. Could it maybe have anything to do with Windows 8.1, should I try with 7? I'm getting ready to give up on this phone, it's been bugging me for too long.

Alright, just thought I'd give an update since I finally got around to working on it one more time. I should mention that when I first had this problem I ordered another ls970 with a broken screen just to replace the logic board, well when I rooted it the same thing happened while it was being unlocked (or possibly before). So I figured I would just not root it or mess with the bootloader. Unfortunately that wasn't the problem. After ordering one last ls970 with a broken screen (they're pretty cheap at least), I replaced the logic board. It worked for a while, than the same problem problem occurred. I never tried rooting or unlocking it. I needed to update the profile through the settings, but that should not have done this. I can only think of 2 possibilities. My Google account managed to backup something from the other ones that caused the problem or something with updating the profile with Ringplus caused it. I'm just going to give up on it this time, working with esn fix didn't work and it would take way too long if it did.

SIM not detected

First of all this is my friends t889v with windmobile, and he asked me to flash cyanegeonmod on it. So I flashed the n7100 and the service wouldnt connect, so he told me to bring it back, so i did from a nandroid. After that service was functional but it kept on displaying "the process com.google.gapps has stopped" so i decided to wipe to factory from cwm. After that I got no service, so tried restoring from the nandroid again, but this time i got no service there too. I tried to flash 3 different modems, and none did anything. I have also factory reset from odin and still no luck. I tried flashing a custom kernel, and that led to the phone not booting, so i factory reset once again . I have looked alot and havent found a solution, so if you may please help me i would be VERY grateful. Thank you very much.

omokdad said:
First of all this is my friends t889v with windmobile, and he asked me to flash cyanegeonmod on it. So I flashed the n7100 and the service wouldnt connect, so he told me to bring it back, so i did from a nandroid. After that service was functional but it kept on displaying "the process com.google.gapps has stopped" so i decided to wipe to factory from cwm. After that I got no service, so tried restoring from the nandroid again, but this time i got no service there too. I tried to flash 3 different modems, and none did anything. I have also factory reset from odin and still no luck. I tried flashing a custom kernel, and that led to the phone not booting, so i factory reset once again . I have looked alot and havent found a solution, so if you may please help me i would be VERY grateful. Thank you very much.
Click to expand...
Click to collapse
This here is wrong section, cause t889v is not the international N7100, so most of the stuff you've flashed must fail.
Go HERE to find answers and software to restore the device.

[D855 32 GB] Reboot problems (brick or hardware defect?)

Hello guys,
I managed again to brick my phone.
I flashed Fulmics as I wanted to swap from those not fully stable nougat roms. Well, I have no idea what caused my problem - Fulmics run without prolbems for a 2 or 3 days including xposed etc.
Then today I changed my ChromePie options and that's when the reboots began. I don't know if this the real cause was though.
So I tried to flash another rom but always got random reboot even in recovery after few minutes/seconds. So I went all the way back to stock rom (4.4.2) with LG Flash tool - which worked after a few tries. Then I installed MM rom via .kdz file and flash tool 2014, which also worked after a few more tries. But then the reboots started again. Can't say if the 4.4.2 rom was without boots because I updated to 6.0 quite quickly.
The strange thing is that after some reboots phone won't boot again and I have to take and leave out the battery for some time to boot the phone again.
Any solutions for my problems?
Best regards

..bumped into the same 1/2 year ago. Didn't want to put to much effort so,..went to stock and back, worked for me.
Good luck.

Gerhard.M said:
..bumped into the same 1/2 year ago. Didn't want to put to much effort so,..went to stock and back, worked for me.
Good luck.
Click to expand...
Click to collapse
Which stock and how did you go back?
As mentioned I already went back to stock but the issue kept occuring.

Hi, got the same problem with my G3
wi fi and bluetooth didn't work and phone loop rebooted
Here below the steps I followed to solve
1) First attempt (didn't solve): had cloudy rom, got back to stock official but still rebooting, tried fulmics and other rom but problem persisted.
2) second attempt (didn't solve): went back to stock and changed battery (found somewhere in internet), now I have a brand new battery but a phone still loop rebooting
3) third attempt (SOLVED): found that the wi-fi / bluetooth chip (one for both) copuld have unwelded and solved so (it appears I can't post outside link, delete spaces to have the correct link):
youtube .com / watch?v=1zWpzYh2DPI&t=15s"
youtube .com/ watch?v=6_0jzp65eLY&t=256s
Now i'm on fulmics and no more loop reboot
Hope you can solve
[sorry for my english]

frosty234 said:
Which stock and how did you go back?
As mentioned I already went back to stock but the issue kept occuring.
Click to expand...
Click to collapse
http://stockroms.net/file/LGG3/D855/European/BIN_LGD855AT-00-V10e-EUR-XX-JUL-08-2014-32G-0.zip
http://storagecow.eu/index.php?dir=Xda/LG+G3/Stock/D855/
used flashtool
have to say restoring and/or flashing isn't always that stable. I've experienced it sometimes needs a 2nd try.
Hopefully it isn't a hardware issue in your case.

So I tried all of oyur suggestions but nothing seems to work.
On the contrary I ended up in a status where I can't even flash a new firmware.
In LG Flash Tool 1.8.1 I get the error
"Donwload Fail!!!"
PID: NULL
IMEI: NULL
MODEL:
DLL: D855
BIN: LGD855AT.....
SWV:
SWOV:
Model Information Check Fail!
000000000
Click to expand...
Click to collapse
In LG Flash Tool 2014 (flashing MM with kdz file) phone shuts down in middle of process.
But I can still access Download Mode.

No more ideas?
I really think I finally broke my phone... But the fact that I can still access download mode keeps my hopes up.

So, after 2 months I just tried to reawaken my phone. Still the exact same problem. It just keeps shutting down aber some while, but just when I start flashing something. If it stays connected to computer whitout doing anything it can stay on for like ever.
Can anyone confirm that this could be a hardware defect?