Unable to flash stock firmware - Galaxy S6 Q&A, Help & Troubleshooting

I have a Samsung Galaxy S6 SM-G920F on virgin mobile. I rooted it once and after around 2 weeks my phone started turning off out of the blue for no reason but would always turn back on and then one day it never did. I managed to flash the stock OS back on the the phone to fix this problem and around a month later the same problem came again, even though i was not rooted anymore so i had to flash it again and it worked but now every time i try it fails almost instantaneously. Anyone else had this problem or know how to resolve it?

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Galaxy s2 att help

I have a galaxy s2 that I tried rooting, it sorta worked then it did not. So I followed the instruction to put it back to stock with gingerbread .uckh7,
kernal version 2.6.35.7
The phone seems to work fine. The issue is I cannot put it back to ics which is where it was, I tried reloading Kies, I tried just using the update. Nothing. And the phone now seems to once in awhile go into airplane mode by itself, or to restart itsself.
I would love to root my phone, and have it work well. I know enough about computers to be dangerous I am sure. But baring that I would just like to be able to have it back to where it was.
Thanks for the help.

[Q] Lost camera after AOSP flash and even ODIN to stock won't work

So I finally took the plunge to AOSP since I have my note 2 to run stable. First thing I noticed was that the camera got a "can't connect to the camera" error. Fixed permissions, wiped multiple times, tried a couple different AOSP roms and nothing, so I looked deeper and found some file replacements for the data folders, tried that and still nothing. Wiped again flashed a stock rooted image and still nothing, so last resort was 2 different stock rooted and not-rooted images through ODIN. Successful flashes of both and still no camera.
I am stumped i thought my fail safe ODIN would work but it didn't if anyone has any suggestions I would greatly appreciate it.
p.s. my bootloder is unlocked.
::UPDATE::
Ok so after continuing the troubleshoot finally stumbled upon something. After restoring a stock ODIN of ICS from when i first got the phone I let Verizon run through and do its update and after it finished VOILA my camera's working. I honestly don't know how it happened but nothing else had worked, now i have to go through and unlock root and get a custom ROM again. hopefully this can help someone if this happens to them.

[Q] need help please. can't grt phone to activare still

I got my one SV k2_cl from boost a little over a month ago and got the bootloader unlocked and rooted, working fine until one morning it wouldn'tmake calls or texts. I tried to factory reset and when I tried to boot got stuck at the HTC logo. Took me 2 weeks to get it to even flash a Rom on here that will somewhat work. I've got WiFi and partial 3g 4g connectivity but no voice at all. When I try to use the phones its activation tool-error, tried manually programming phone- nothing. I'm stumped. Can someone please help me out here. Don't want to have to buy another phone if I can help it. The only guess I've got at the moment is that if I could get a stock original rom to flash I'd be good to go probably and just hold out on doing anything else to it until after the kitkat ota is launched. The few stock roms I've tried either wouldn't download for some reason or just won't flash right. Thanks in advance for any help guys. I've always been more of a hardware geek more so than software but I can usually muddle through following guides of course.
I'm not much into boost, but did you try to flash the available RUU?
help...
As a matter of fact I have tried that and unfortunetly the installer locked up on a reboot of the phone because the phone wants to do the "Android is upgrading # of #" on every boot. That was why I was thinking since adb/fastboot and the HTC One Toolkit all sorta work that if I could get ahold of a working stock rom to flash on there and I have a stock CWM backup still on my laptop from when I first got the phone rooted and everything working. But of course thanks for the tip anyway. I wish that would work. It seems to be the easiest way to install back to stock.

[Q]WiFi stuck, unable to turn on

So ever since yesterday I've been able to use WiFi. I was chromecasting something and while it was casting my phone went through a reboot, thought nothing of it since its happened lately. Well i think it did it a few times. Well I check my phone after my show is over and my WiFi is off., and I can't turn it on. I rooted my phone last night since it was unlocked already from when I had it rooted before. It's on Android 6.0 right now. I was just wondering if anyone had any ideas of how to fix it. I was getting a logcat error in reference to the wifistatemachine.
Did you try flashing an older stock rom?
I have a phone with the same problem and it believe it is a hardware problem because stock and custom kk, lp, and M ROMs do not solve the problem. After swapping out the motherboard, everything was fine.
I have not yet. I was trying to create a nandroid backup first, but NRT doesn't seem to want to let me do that because i don't have a modified boot image.

Can't flash anything on my p5100

Hello guys, I had slimkat on my p5100 8 gb and it was on. I gave it to my sister that gave it back to me after a couple of weeks with annoying process has stopped msgs that never go away. So first I tried to wipe everything using twrp 2.8 but that didn't change anything even if wiping was successful but didn't even softbrick the tab. So I tried to flash cm but that didn't work neither giving me an error on twrp .. final thing was to flash the stock that took 2 hours to be flashed and after giving me success on odin and rebooting I keep having slimkat with the same annoying msgs and same settings basically like I didn't flash anything. While I was trying to flash the stock I tried also to add pit file but that didn't change the situation .. any help ??
Emmc bug, plenty of tab affected, needs motherboard or chip replacement. only ways out.
any guides on replacing the emmc ??
on some devices it helps to update the faulty emmc firmware (16GB Tab2), i know someone from austria who could update it for you

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