galaxy s6 stuck at boot loop - Galaxy S6 Q&A, Help & Troubleshooting

Hi guys i have a SM-G920F the phone crashed out of the blue while i was using the phone
then the phone restarted it self but there is no boot it stuck at black screen and constant white led (not flashing just pure white )
after a few tries i managed to get to recovery mode the factory reset and cache reset ... still not booting
so i tried to flash it with odin i downloaded firmware from sammobile then after 4-7 hours of trying to get to download mode (it just won't get to download mode) i manged to get it there but my computer (odin) didn't recognize after a few tries it detected the phone so i pressed start on odin so when odin started to flash the disconnected it self from my pc and odin gave me fail on system flashing .... now when i try to boot the device it gives me this (an error has occurred while updating the device software use the emergency software recovery function in the smart switch pc software ) and then i installed smart switch on pc but it required a recovery code that i don't have .... so i searched the web i see there is a device initialization tab on smart switch (the tab i don't have and after few searches found that Samsung has stopped this tab) ... so now what is i'm going to do what is the solution ???
-can't open recovery nor download mode
- can't boot normally
-only showing (an error has occurred while updating the device software use the emergency software recovery function in the smart switch oc software )
thank you for your time

Related

[Q] Failed upgrade, now stuck in recovery mode

My Galaxy Note 10.1 is stuck in recovery mode and I'm not sure what to do next. Here's what happened:
After connecting to wifi, a software update was downloaded and a message asked me to install it. I accepted, because otherwise it said it would remind me in 3 hours.
I left it plugged in and went out. When I came back, there was a screen warning me of the dangers of installing a "custom OS" (?) The options were to press the volume-up to install it, or volume-down to reboot. Neither option did anything. Hard rebooting went to the same screen.
Later, I tried to charge it, but got this repeating sequence: the symbol showing a charging (but empty batter) for a couple of seconds, then a picture of the android robot with blue polyhedron thing (like here), then blank screen. A few seconds later it repeats.
Finally I try rebooting into recovery mode:
Android system recovery (3e) ... reboot system now apply update from external storage wipe data/factory reset ... MANUAL MODE -- Appling Multi-CSC... (sic) Applied the CSC-code : INU Successfully applied the multi-CSC.
Now, I don't really care whether I get the update or not, or whether I lose some data - I just really want a working phone again. I'm travelling atm, so it's a bit inconvenient. But mostly I'm asking for help to avoid making the problem worse.
So: what should I do?
It's a (unlocked) Samsung Galaxy Note 10.1 with ICS.
Download the full firmware for your region. Then charge it fully
Install Kies so that you get the USB drivers.
Download Odin
Unzip the firmware that you downloaded
start Odin and select the PDA,browse to the firmware and select it.
Enter download mode on the note with Power & Vol up
Make sure kies is not running
Now connect it and check that Odin finds the Note.
Press start to flash the firmware.
Don't go out while it flashes!!
Sent from my GT-N8000 using XDA Premium HD app

Stuck in Boot screen and download mode - NO recovery mode.

Hello i'm new on this forum,
I have got an Samsung GALAXY S6 ( SM-G920F ), a week ago i was using it and it suddenly shut down. and rebooted but got stuck in the Samsung Galaxy S6 Boot screen.
The problem is :
- I can only boot into Download mode
- booting into Recovery mode is impossible, i have tried all the possible ways.
I have tried flashing it with the plenty of stock firmwares :
- For most of them, it fails at the hidden.img
- I have found one that works great, Sucess at the end of flashing but after rebooting the phone get stuck in boot screen or downloand mode, AGAIN ... ( and the same happens if i unzip and remove the hidden file and then put back to MD5 and use it to flash ).
So, any solutions from you guys ? I have heard that since it's going into download mode or boot screen it's not a hardware problem and it's only "bricked". have been reading that since it's booting, it's better than not booting at all.
I also heard that this problem might be resolved by rooting the device.
HEEEELP !
PS : My phone shut down suddenly, so i'm not sure the developper mode is activated or the USB debugging is on...

Help plz

my samsung galaxy s6 is using android marshmalow,it started last night when out of nowhere it started to reboot itself,i tried restarting the phone but after a few seconds of being on it rebooted it self into the samsung galaxy s6 powerd by android state and keeps showing the white led light and just stays there,i tried wiping particion,factory reset,entering safe mode,but it keeps going back to that exact same state,i also tried charging the phone for several hours but keeps coming back to that state
Note:i can turn the mobile off,and when i do that the phone doesnt reboot,i only reboots when i try to leave it on
Edit:
-so i now managed somehow to boot it into safe mode and it doesnt reboot,but once i exit safe mode it start the hole thing over again.Note:sometimes when i boot it to safe mode it reboots some times it doesn´t
Hello mate just do this it wil take you to the latest fiwmware for your s6 but every thing will be deleted its emergency firmware recovery on smart switch this wil work 100% dont think just do it this will fix every single thing i but try first to flash a stock rom via odin if that doesnt work than you have to do a emeegency firmware recovery i had the same problem even when i flash a rom via odin did not work but this wil fix it for sure just go to the link below and try it out good luck!
https://youtu.be/7ncsfXdjL_Q

An error has occurred while updating device software

hello,
Some time ago my phone started to lag spontaneously. I had to force boot it in order to get it back working. After few days it repeated, then again, then again. Last time force boot didn't work - got stuck at "samsung welcome screen" All i could do is to enter recovery and download mode. Tried to do everything in recovery didn't work. Tried to flash rom via odin, but after 20mins of flashing stuck at one point i aborted it (stupid af idea) Phone went into screen i enclosed. smart switch doesn't see phone at the same time pc detects it (sound when connecting) odin does too yet still can't flash official rom.

Stuck on TWRP's "teamwin" loading screen after years of working normally and no changes

Hello, I've been using this phone for more than a few years now. Reflashed the system a few times over the years and was currently on Ivan_Meler's amazing LineageOS 18.
I saw that a bug on his 19.1 version I was experiencing was potentially fixed, so I started preparing to switch to that.
First order of business was going to recovery and doing a full backup, I had gone into recovery not too long ago.
Except I got boot looped instantly.
The current situation is:
- Model is SM-G930F
- The device is rooted
- Device will not stay turned off, if I force turn off with volume down + power it reboots instead
- Device is able to get into download mode and it seems to work normally
- Device will always boot to recovery, except when I ask to boot to download mode by volume down + power + home (not sure if there is a button combination for specifically booting to system, lmk If there is)
Things I already tried:
- Letting the battery run out completely to hopefully clear some cache -> Device tries to boot to recovery as soon as I plug the charger in
- Using ADB during the stuck splash screen -> Device eventually gets recognized by windows but it throws the generic "Your USB device malfunctioned" error, ADB doesn`t recognize it.
- Rebooting by launching a harmless command in Heimdell -> Device reboots but nothing else changes, still stuck.
- Letting battery run out at different stages, like in the stuck teamwin splashscreen, in the warning message before download mode and in download mode -> nothing changes
Additional information from the moment I tried to get to recovery and got stuck:
- I fat fingered "reboot" instead of turning off the phone, so I just held down volume up + home to get into recovery (I had already done this successfully before).
- My phone has USB debugging turned on
- My phone was plugged to my PC in USB Tethering mode when I tried to get to recovery
- My phone was set to use USB Tethering mode by default when plugged via USB, because I use that function a lot.
- My PC had the ADB server running, but was not actively running anything on device at the time.
I remember having been stuck in this same situation before and being able to recover it without losing data. But I have no recollection of how I did it.
If there was a way to make my phone stop trying to reboot and just turn off, im sure that
I would be able to boot into system, because i dont see how anything could've gotten messed up there since the phone rebooted normally and wasn`t reflashed or anythng
I really didn't want to have to wipe it, since my last full backup was a few months ago.
Do you guys have any suggestions? I was thinking of trying to flash back the exact same TWRP version through Odin, without flashing anything else. And seeing if that fixes it since the version is shown in the teamwin loading screen, would that be safe?
Hi, any progress ? I'm in the very similar situation, but flashing the same TWRP with Odin didn't help and I'm still stuck on TWRP logo. And adb doesn't see the device (neither when I'm in download mode nor when I'm on TWRP logo)
Is the device softbricked?
Try Frp HiJacker
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Had similar problems myself

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