Develop Bugs

[Q] Tried about everything, Bad Hardware?

Phone: LG Nitro HD (P930)
Carrier: AT&T
ROM: CM9 or CM10
Pre-Problem: Phone acting weird, rebooting very often during the day freezing up randomly.
Attempted to fix the problem with the second method listed... Problem below ensued...
Problem: Phone boots up fine but upon touching or interacting, the phone will freeze and reboot.
Attempted Fix 1: Pulling logcat from phone while booted
Method: Phone is connected via USB, go to adb directory and start pushing commands.
Sub-Problem: adb does not recognize my device but my computer does in device manager
(Drivers are correct and properly installed, unsure of problem, may need re-install?)
Attempted Fix 2: Flashing, and reflashing and reflashing.
Method: Complete cache and data wipe, then fresh install of ROM
Attempts: To many to count, but less than 50.
ROMs: Stable CM9, Nightly CM9, Nightly CM10
Result: Orginal problem unresolved.
Attempted Fix 3: Cache and Data Wipe after ROM install
Method: After Attempted Fix 2 Method, reboot into Clockwork Recovery Mod, full cache and data wipe, reboot
Result: Orginal problem unresolved.
Attempted Fix 4: Unbricking method by Machzelet
Method: http://forum.xda-developers.com/showthread.php?t=1597488
Stopping point: Step 14 - 15
Sub-Problem: Phone reboots the second the updating part starts, before 4% hits. Tried more than 5 times.
(I may have not tried enough, but I think it is because the hardware is failing)
Result: Phone reboots into current flashed ROM with original problem(CM9 or CM10)
Other possible fixes:
Flash original .img files for the P930 (but Fix 1 sub problem prevents that, I also fear that the phone would freeze and reboot like it does in Fix 4)
Smash screen with a "gentle tap" of a hammer, take to Best Buy and say I dropped it and my phone is no longer working.
Get rapid exchange for the 2nd time (3rd fix overall)
Short circuit the phone in a humorous but not completely destructive way.
Take to best buy for rapid exchange
If anyone could help me understand what is going on and what I can possibly do to fix the (sub)problems before I resort to other measures, I would greatly appreciate it.
Many Thanks to any that will contribute.
~ Kyle

For adb to work, you need to enable "USB debugging" on your phone.
Try removing your SD card and/or SIM card to see if the problem only occurs when one or the other is inserted.
Try flashing to official ICS using the official installer (not using the unbricking method). Requires that you remove the modification to the hosts file first.

drumist said:
For adb to work, you need to enable "USB debugging" on your phone.
Try removing your SD card and/or SIM card to see if the problem only occurs when one or the other is inserted.
Try flashing to official ICS using the official installer (not using the unbricking method). Requires that you remove the modification to the hosts file first.
Click to expand...
Click to collapse
Forgot to mention, I have tried booting without SD card and wiping without sd card in with no sucess.
As well as using SD Formatter to format an sd card and have a fresh install from that (Will add to the attempted fixes in the morning).
Have not booted without SIM, will try that in the morning. Really tired right now.
Can you get root from the ICS install? To get back to CM9 or CM10? I remember when it first came out, there was no root for that install.
Thanks for the quick reply
EDIT: USB Debugging was enabled by default, unable to toggle off then back on due to original problem.
~ Kyle

kg5953 said:
Can you get root from the ICS install? To get back to CM9 or CM10? I remember when it first came out, there was no root for that install.
Click to expand...
Click to collapse
No, you can't. But I suggested doing that just to see if it solves the problem. If the problem persists after flashing the official ROM, then that eliminates at lot of possible causes. In fact, if it still happens, I'd just get the phone exchanged at that point.
To get back to CWM, you would have to follow the unbricking process after installing the ICS update.

Oh wow, I am facing exactly same problem but the thing is CM9 is working fine. No issues at all?

I suggest flashing a full nandroid backup without the stock recovery.
Sent from my LG-P930 using xda premium

No ADB/USB whatsoever. Unrecoverable?

Hey guys, I've got a really weird issue here. After performing a factory reset with Odin to get back to stock (latest update), I all of a sudden lost any SIM functionality and USB functionality while in Android. I cannot transfer files, I cannot use ADB, it only charges, and my SIM is undetectable rendering the phone just a wifi android device. It does this with TMobile official and the international ROM for the T889. I was attempting to install CM10.1, but apparently the recovery on the Root Sticky is too outdated and CM10 errors out on install, and ROM Manager is unable to download any ROMs or update CWM. Really, really kind of stuck here, and I don't even know what's causing this. I've factory reset about a million times now or tried backups/different ROMs. Oh also, apparently my internal SD card is gone now too.
Anyone ever had some kind of issue like this? Not being able to ADB at all when CWM and Odin work perfectly is driving me insaaaneee!
EDIT/TLDR:
Internal storage /storage/sdcard, usb connections inside android, and the SIM simply do not exist to the device, and CWM cannot format/mount sdcard. Oddly, apps can download and run w/o the extsdcard, but downloading things from chrome will crash it. Still no ideas of how to fix.

No SD Card access from unlocked, TWRP'ed and rooted LG G4

Hi all
I've managed to pull this back from the brink and I am now able to boot into a rooted Marshmallow 6 OS.
Problem is I can't see my SD Card and it says it's corrupted. I had backed up the data from the SDCard and so allowed Marshmallow to reformat the card. Same problem. It still says it's corrupted after the reformat..
Any thoughts please? I really can't be bothered with this today after losing all my apps etc earlier. :crying:
Many thanks
H

Have you format as internal?

Hostilian said:
Hi all
I've managed to pull this back from the brink and I am now able to boot into a rooted Marshmallow 6 OS.
Problem is I can't see my SD Card and it says it's corrupted. I had backed up the data from the SDCard and so allowed Marshmallow to reformat the card. Same problem. It still says it's corrupted after the reformat..
Any thoughts please? I really can't be bothered with this today after losing all my apps etc earlier. :crying:
Many thanks
H
Click to expand...
Click to collapse
It's like every other day there is a new user with the same problem.
As in all the other threads, make sure, your rooted kernel matches your Rom. Beware that there are two different 20A versions. Best advise is to reflash 20A (newer version) and use systemless root. If you manage to get this far, you will find the appropriate thread here.

Thanks for the replies.. Had a hell of a f***ing day with my phone after losing all apps and settings..
Nucking fightmare and I've been struggling to get it to just blooming work on marshmallow. At least I didn't lose the important stuff on the SDCard..
I've restored a system image to 5.1 and will be re-rooting it soon.. I've already wasted too long on it..
I'll probably stay on it until 6.1 is available for the G4..
Thanks for the replies!

Help with booting problems?

Hello,
I just noticed something the other day and I do not know if this has any effect on my problem with the phone getting a usb not recognized error so I wanted inquire!
So I did a completely clean install of the [ROM] [Touchwiz-PC1,PD1] [100% Stock, Root, No KNOX, No Itson] [4/5/2016] deodox rom and have noticed that my boot screen no longer shows multiple lines while booting. The only thing I get now is:
Set Warranty Bit : Kernel
Before I would get that and several other lines including one about Knox. I also do not get the Sprint logo as one of the bootup screens. My question is, is this rom suppose to do this or did I do something wrong? I followed the directions 100%. I also notice that I also now get an error that it cannot do a fingerprint unlock on boot and I have to enter my emergency password.
Last but not least, if there is a problem. Is there anyway to put a OG5 rom on my micro sd card (I have a card reader I can put the micro sd card into to transfer files, I cannot odin) and restore it to then?
Thanks for any help!

Most of what you describe is not abnormal.
Your fingerprint may be data left over from Lollipop. Try deleting your fingerprints and add them back.
Be aware, if you factory reset, you'll need to flash systemless root again. Google search SuperSU zip if you need it; it's also linked in the ROM thread. If you factory reset for any reason, make sure you don't keep our have a folder in root folder named /carrier/ItsOn. The apk in that folder could activate causing numerous reboot prompts to complete activation.
Eventually, you're going to need access to a PC to do what you want. You might be stuck and unable to update; modified partitions can cause the failure to update on OTA and KIES. Custom stockish ROMs are coming but they won't be for PD1; it's already outdated.
You can't go back to Lollipop without a PC because you need to revert your bootloader to Android 5.1 to run that ROM. Without a TWRP backup to restore, you should also Odin the full stock tar rather than just the bootloader.
Sent from my SM-N910P using Tapatalk

samep said:
Most of what you describe is not abnormal.
Your fingerprint may be data left over from Lollipop. Try deleting your fingerprints and add them back.
Be aware, if you factory reset, you'll need to flash systemless root again. Google search SuperSU zip if you need it; it's also linked in the ROM thread. If you factory reset for any reason, make sure you don't keep our have a folder in root folder named /carrier/ItsOn. The apk in that folder could activate causing numerous reboot prompts to complete activation.
Eventually, you're going to need access to a PC to do what you want. You might be stuck and unable to update; modified partitions can cause the failure to update on OTA and KIES. Custom stockish ROMs are coming but they won't be for PD1; it's already outdated.
You can't go back to Lollipop without a PC because you need to revert your bootloader to Android 5.1 to run that ROM. Without a TWRP backup to restore, you should also Odin the full stock tar rather than just the bootloader.
Sent from my SM-N910P using Tapatalk
Click to expand...
Click to collapse
I have a PC, the problem is that it will no longer recognize my phone by USB. It always gives the USB not recognized error. I do have a folder in root called carrier but when I try to go into it with root it tells me my phone is not rooted. This does not make sense as my phone is rooted , per the installtion of the rom and I have other apps I have given root access too.
Arrg! Thanks for the info, any more will help greatly!

h4kudoshi said:
I have a PC, the problem is that it will no longer recognize my phone by USB. It always gives the USB not recognized error. I do have a folder in root called carrier but when I try to go into it with root it tells me my phone is not rooted. This does not make sense as my phone is rooted , per the installtion of the rom and I have other apps I have given root access too.
Arrg! Thanks for the info, any more will help greatly!
Click to expand...
Click to collapse
Did you enable developer options (tap build # in Settings/About device 7 times or more until enabled) and enable USB debugging in developer options?
Yes you should be able to detect device when you plug in to PC but you may not see COM connected in Odin without USB debugging.
If it's always not detecting, could be bad USB cable (broken out missing data lines) or bad PC USB port. Try others first, if that's the case. Hardware failure is rare but has been reported as suspect. Hopefully, it's simple rather than that.
Sent from my SM-N910P using Tapatalk

I need some advice on downgrading from MM, rooting etc

My T800 is in a right state. I was running one of the first MM roms to be released in the wild, with root and twrp. But a couple of months ago, I mistakenly installed the correct official MM rom, breaking everything. Now I can't root it, install twrp and adopted storage doesn't work.
So I was hoping I could downgrade to lollipop, root, install twrp and then update to one of the root-friendly MM roms on here. Is it possible to do that?

mickrick said:
My T800 is in a right state. I was running one of the first MM roms to be released in the wild, with root and twrp. But a couple of months ago, I mistakenly installed the correct official MM rom, breaking everything. Now I can't root it, install twrp and adopted storage doesn't work.
So I was hoping I could downgrade to lollipop, root, install twrp and then update to one of the root-friendly MM roms on here. Is it possible to do that?
Click to expand...
Click to collapse
I’ve flashed lollipop KitKat marshmallow upgrade downgrade without any issues. These are official firmware’s i been flashing via Odin SM-T705 my model is hope that answers your question..

mickrick said:
My T800 is in a right state. I was running one of the first MM roms to be released in the wild, with root and twrp. But a couple of months ago, I mistakenly installed the correct official MM rom, breaking everything. Now I can't root it, install twrp and adopted storage doesn't work.
So I was hoping I could downgrade to lollipop, root, install twrp and then update to one of the root-friendly MM roms on here. Is it possible to do that?
Click to expand...
Click to collapse
I'm not sure what you mean by break everything?
A few more specifics is required.

ashyx said:
I'm not sure what you mean by break everything?
A few more specifics is required.
Click to expand...
Click to collapse
By "broken" I mean, apps crashing, apps not installing, freezing, random rebooting, overheating. The sorts of things which drive you mental and, in effect, break everything.
I must have wiped and installed the OS a dozen times over the weekend. I was able to get the correct version of twrp and install it with odin, letting me wipe the system and data partitions in order to get a clean install. I restored all my apps, installed a system update. Then I installed twrp again, flashed the su zip and for some reason it would start freezing, reporting the sd card had been removed. So I eventually wiped, installed the rom, and then let Smart Switch install the correct version of MM for my tablet and just installed the really essential apps. Then twrp and finally su. I was even able to set half of my sd card up as adoptable storage (using root essentials app) and it is working perfectly now.
But I think its time I was looking out for a replacement tablet now. Although a great device at the time, and for a couple of years afterwards, it has become a bit long in the tooth lately.

In order to rule out any external issues, I'd use odin to flash the factory firmware (this of course will erase TWRP). Remove the sd card, and use the device for a while as is. If it works, then your past problems were some kind of software-related problem. If it still has issues, then there could be a hardware problem, like memory or the rest of logic board.

Akopps said:
In order to rule out any external issues, I'd use odin to flash the factory firmware (this of course will erase TWRP). Remove the sd card, and use the device for a while as is. If it works, then your past problems were some kind of software-related problem. If it still has issues, then there could be a hardware problem, like memory or the rest of logic board.
Click to expand...
Click to collapse
I think he's got it sorted now. Seems that's what he's already done.