Samsung GT-P3100 Phone Restarting after every 10 seconds - Galaxy Tab 2 Q&A, Help & Troubleshooting

Hello everyone, Please I need help urgently with my GALAXY GT-P3100. It keeps restarting after every 10 seconds. I think my carrier (VOD) UK recently upgraded something on their server and my device was unable to successfully complete the installation as I am not in the UK. I have done all I can think of, which includes perfoming factory reset, flashing via odin with the same stock (VOD) firmware, flashing via odin with both Arabic and India repair firmwares by Rev04_user_low_ship, flashing the pit via odin, Installing via ADB and SD card and many more.
I'm guessing my device is on "Read-Only". Is there something I am missing? The stock (VOD) firmware gets stuck and fails at system.img while flashing with odin. Although, I get a pass while flashing with Rev04_user_low_ship Arabic and India repair firmwares, the phone returns to same problem after reboot. I get "E-Verification Signature Failed" while trying to Install via adb or SD Card and my recovery shows "MANUAL MODE Applied the CSC-Code : VGR did not match sized system/csc/common/system/csc/others.xml(No data available)". I have never used Custom ROMs or Recoveries on my device. Please what's the solution to this problem.

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[Q] Assistance please. Stuck on Odin mode.

Stuck in Odin mode with every reboot.
I've rooted a few tablets and phones successfully in the past ,includes a few galaxy GT 8010.
I used the same process for a N8020 . But when it reboots ,the normal red android process does its routine, Reboots and "Downloading....." mode appears .Tried rebooting with same result.
So I repeated the process a few more times with same result.
Flashed " Philz recovery " which I can access.
Tried installing customs stock roms (can't find any original N820 australian optus 4.1.2 firmware online ( hotfile host sites are down).
I get an error 7 ( tried looking that up with out success)
Please advice ...I've exhausted all my search efforts.
These are the CF Auto root file I used; p4notelte-gtn8020.tar.md5.
Tried Echoe n820 roms and Darkman roms with error 7 and install aborts.
Once again, HELP please.
Not sure how to delete post.
I manage to acquire the stock FW from Sammobile , (DL through a file host site ) .
Flash through Odin and all good.
Repeat root process ,this time not a hitch.

why i got stucked in downloading mode ?

i have samsung galaxy s4 gt-i9515 . Yesterday i rooted my phone using kingroot app. Then i installed twrp recovery for my device using a flashing tool called FLASHIFY. when i started the process it suddenly goes to downloading mode and got stucked. I tried to get out but i can't. in the downloading mode, it says 'COULD NOT DO NORMAL BOOT'. My custom recovery is working, so i jumped to this and tried clearing dalvik cache.,etc by seeing some forums,but nothing happens,it again returned to downloading modes. what can i do to get my phone back ? i have downloaded a firmware to flash. But i have some doubt before flashing the firmware using odin. ( doubt): in the first line i had said that i have gt-i9515,this a value edition,but when i searched for my device firmware there showing firmwares for two ,one is for s4 gt-i9515 and another is s4 gt-i9515 value edition,so my question is these firmware are inappropriate ? can i flash it ?
plz tell me what happened to my phone and there is any alternate for flashing a firmware ?
plz help me

S4 can't boot even after flashing stock firmware

Hello Guys,
A few days ago my s4 rebooted by itself and after that i was not able to boot it again. I can't boot into recovery mode but i am able to get in the download mode so i flash the stock firmware and pit file. I flashed kitkat on my phone and before it i had lollipop. After flashing the stock firmware the phone just didn't boot and i was not able to get into the recovery mode so i tried to flash the firmware again but the firmware didn't flashed successfully and i tried it for many times. So i changed my bootloader back to the lollipop one and now when i try to flash the firmware it starts and then stops on flashing system.img.ext4 and my phone lights turn off but odin still shows that my phone is connected and if i disconnect my phone it fails and then my phone has a message that firmware update encountered an issue but i am able to solve it by flashing the pit file. I don't know what is going on with my phone. any help will be appreciated.

S6 fails to boot - help please - can flash via Odin and enter recovery

Hi Peeps,
I have an S6 that fails to boot, just boots into recovery mode. I can get into download and flash via Odin but will always boot into recovery instead of system.
There is a message in the recovery screen with:
No Support SINGLE-SKU
Supported API: 3
#MANUAL MODE v1.0.0#
--Applying Multi-CSC...
Applied the CSC-code : NZC
Successfully applied multi-CSC.
Failed to verify for dmverity hash tree
Reboot into recovery again
When rebooting or trying to power off it says:
"DMV Failed reboot"
Googling didn't seem to find anyone else with the same problem.
I've flashed combination file and that fails to boot, just stuck on loading screen. Though combination file doesn't reboot to recovery. I've only tried a 7.0 G920I firmware so far.
Have also tried TWRP and custom ROMs, same problem, won't boot and just goes back to recovery.
Now, I've opened the phone and the motherboard is marked G920F but the phone thinks it's a G920I and will only accept flash of G920I firmware.
I suspect that someone in the past has managed to flash G920I firmware onto a G920F device. Is this possible or are all motherboards marked G920F even if they're G920I?
Any ideas?
Flash the ROM but would erase the data on your S6. Be careful! Here is a video to fix this problem, you can have a try. youtu.be/zXSHe3oorIM

Samsung galaxy 7 (sm-930f) bricked custom recovery can't be unlocked

I have a problem with my samsung galaxy s7. So i wanted to install a custom rom. It went wrong but there were no worries because i could still unlock twrp custom recovery. I had made a backup of my rom, i forgot to wipe the phone and then it got bricked. Now i can't unlock custom recovery and i have tried installing the firmware of my samsung galaxy s7 (android 8.0 oreo). It didn't work with odin because at failes the entire time. Trying a few times and i got another error: the error that says i should download samsung switch and do a emergency reboot. So I installed the smart switch software But it doesn't recognise my phone when I'm in download mode.
my SD card isn't corrupted. PLEASE HELP!!!!
Lars
Flash latest January firmware with Odin.

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