Restarts, not booting - Galaxy S6 Q&A, Help & Troubleshooting

Hey.
So, basically, this:
My Galaxy S6 rebooted one time, randomly, while listening to spotify. 2 days later, it rebooted again. 10 secs after boot, it rebooted once again and... I couldn't use it. I've entered recovery mode, did factory reset, wiped cache, rebooted and it happened again. The phone was rebooting all over again. In download mode / recovery mode, there were no restarts.
I've flashed stock firmware through Odin. Except of errors like IMS Service has stopped working, the phone was still rebooting. When I'm entering recovery mode, I'm getting info that it's "installing update". After still holding volume up, home and power button, there's "No command" error and recovery menu is working. I did cache reset again, with factory reset, and some kind of update installed by itself (after that, I had an icon of the phone and SIM card on the screen?).
Now, I'm flashing that update again. Android logo on blue screen, Installing Update -> Erasing, Samsung logo and then back to the blue screen and "No command" error with big yellow triangle with black "!". Blue LED is pulsing.
The phone booted into recovery mode, I've clicked "reboot", Galaxy S6 logo, then Samsung logo begun to animate and... restart. It doesn't boot anymore.
What can I do? They don't want to fix it through samsung warranty.

Related

[Q] Help with Phone Stuck Booting

I'm usually pretty good at following instructions but I have a problem. I am rooted with TWRP, stock kernel. I successfully applied the 4.4.1 update and used the phone for awhile no probs. Tried re-applying the 4 way reboot menu mod that I'd used successfully on 4.4.0. TWRP says flash was successful. I rebooted and am stuck at the spinning google colored circles. I cant get into recovery mode by holding the volume up/down and power buttons. The phone vibrates briefly when I hold all three but the logo keeps spinning. Pressing power button only does the same. Tried connecting to PC but mac says can't read device and to reboot it. ?help?
Update - Got her to reboot with volume down/pwer, into TWRP, and restored from backup, Back up and running...

[Q] 9.18.94.xt926 Stuck in Factor Rest

Hey all,
Earlier today I tried to update from stock 9.18.94.xt926 to KitKat. Unfortunately after the system shutdown and the package tried to install it failed and rebooted to advice me of so. I read online that I should attempt a factory reset before upgrading.
So, I went to settings -> security -> factory reset.
The phone shut off and entered reset mode with the Green Android and a Blue Matrix swirling on its belly.
Since then, the phone has been stuck on this same screen. Additionally, on this page, if I press the volume up/down butts on twice a yellow text appears showing...
'
ge 1/1
Formatting /data...
'
Turning the phone on and off with power + volume down results in the same screen.
The only way I can get the phone to boot is by pressing power + up, then choosing something besides factory reset on the recovery page.
However, when the phone boots its as if it is a brand new device. Additionally, if I am to power down the device, it reboots into the familiar Green Android and Blue matrix page.
Is there any way to fix this issue?
Thanks,
-Tsoju
use this http://forum.xda-developers.com/showthread.php?t=2474393

Sprint Galaxy S6 stuck in ODIN mode

Hello everyone, after a failed XPOSED flash, I was stuck in a bootloop, then I tried to clear caches to get it to work, also tried to ADB sideload, but it didn't work and now I am stuck in ODIN download mode. I tried pressing all the button combinations, but even if the phone turns off or goes to the battery charging sign, when I click power it boots back to the ODIN mode. It doesn't show the warning screen either, just goes straight to the DOWNLOAD PLEASE DON'T TURN OFF screen. I tried flashing a stock rom and a rooted ROM and on ODIN on my PC it says PASS, but on the phone it gets stuck at the last 1% on the white bar and then just stays like that until I reset it. My phone before this was on a rooted 5.1.1 firmware.

Stuck on charging screen after flashing

I flashed the stock Samsung Oreo on my s7, and it showed a blue screen with the android robot 'installing updates' then it said 'no command'. After a while, it showed the android recovery screen, the thing where you navigate using the volume up/down and power. I selected factory reset, wipe cache etc then rebooted. Now, it is stuck on the charging screen, no percentage. Just the greyed out circle with a lightening bolt in it on the top. Holding power button doesn't do anything. Could anyone help me?
gucaj said:
I flashed the stock Samsung Oreo on my s7, and it showed a blue screen with the android robot 'installing updates' then it said 'no command'. After a while, it showed the android recovery screen, the thing where you navigate using the volume up/down and power. I selected factory reset, wipe cache etc then rebooted. Now, it is stuck on the charging screen, no percentage. Just the greyed out circle with a lightening bolt in it on the top. Holding power button doesn't do anything. Could anyone help me?
Click to expand...
Click to collapse
Flash correct firmware again with Odin
I know this sounds silly but I read this before and have tried it. Plug and unplug your charger 5 times times and see if it starts charging. Leave it a while and the try flashing the ROM again.

[RESOLVED] TWRP stuck on Downloading do not turn off target - Reboot does not work

Edit: Resolved
I flashed a nightly release of LineageOS and it's working like before!
Software
TWRP 3.1
LineageOS 14.1
Magisk 18.1
Magisk Manager 7.0
Rooted (unsure)
Background
Google Pay recently declined contactless, so I tried re-enabling it with Magisk and changing device fingerprint, to no avail. I rebooted into recovery to install Magisk Canary, by running the magisk-uninstaller.zip. As soon as I swiped right to run it, it rebooted into the turquoise "Downloading... do not turn off target" screen (with no text in the corner). Every attempt to boot into system yielded this.
Troubleshooting Attempts
Holding volume down + power, reboots to Samsung S7 screen then quickly back to the same "Downloading..." screen
Holding volume down + power, then as soon as screen flashes black quickly holding volume up + power goes into TWRP
Cleared cache in TWRP and tried rebooting, same results
Other Information
I can still enter TWRP and see my files via USB on my computer
Even after phone is powered off and I recharge it, the screen goes back to the turquoise "Downloading..." screen. Powering on is the same..
Questions
Does anyone have suggestions as to what I can try next? Or should I create a backup while I can, then reinstall TWRP or another ROM?
Thanks!
therollingthunder said:
Software
TWRP
LineageOS
Rooted (unsure)
Background
Google Pay recently declined contactless, so I tried re-enabling it with Magisk and changing device fingerprint, to no avail. I rebooted into recovery to install Magisk Canary, by running the magisk-uninstaller.zip. As soon as I swiped right to run it, it rebooted into the turquoise "Downloading... do not turn off target" screen (with no text in the corner). Every attempt to boot into system yielded this.
Troubleshooting Attempts
Holding volume down + power, reboots to Samsung S7 screen then quickly back to the same "Downloading..." screen
Holding volume down + power, then as soon as screen flashes black quickly holding volume up + power goes into TWRP
Cleared cache in TWRP and tried rebooting, same results
Other Information
I can still enter TWRP and see my files via USB on my computer
Even after phone is powered off and I recharge it, the screen goes back to the turquoise "Downloading..." screen. Powering on is the same..
Questions
Does anyone have suggestions as to what I can try next? Or should I create a backup while I can, then reinstall TWRP or another ROM?
Thanks!
Click to expand...
Click to collapse
If the rom zip is on your sd card and you can boot into TWRP, you can flash the rom again, do not wipe anything! and all your apps files etc should be still there when the phone reboots. It's the same process as updating lineage over the existing build.

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