Not Power off - Galaxy Tab S2 Q&A, Help & Troubleshooting

After upgrading to a newer Rom the tablet stays at the logo SAMSUNG.From there I can't power off
the S2,the logo stays in a blank screen.I went to the download mode (Menu+vol down+power button)
and with odin I downloaded the right ROM for the tablet ,after the <<PASS>> in Odin,the updating stops at 32% and again freezes in a blank screen with the SAMUSUNG. I say again,that I can't power
off the tablet even I can't go to recovery as I did before.I was Root and Installed TWRP 3.2.1
Thanks

Related

p970 won't boot and no change after flashing firmware

my friend OB stuck on LG logo when turned on,but screen goes black after ±40s,strangely it does same after flashing new firmware but screen doesn't turn black. it stay on LG logo so I wait for hours,unlucky there's no change on screen.
I've tried some flash method like SFT,KDZ,offline/online update use official or patched rom from v10a,v20a,v20s,v30a,etc but still no luck..after reboot it doesn't perform any wipe or even enter recovery/cwm
on recovery mode (VolUp+G+power) there's a dead android with red triangle on it,and the recovery menu appear if home key is pressed but only vol+- that working I can't choose any options there not even perform wipe
here's the video
http://www.youtube.com/watch?v=PjoBFq1NokU
any help please..
thanks in advance

Boot loop. No Recovery but Download mode

Hello,
this is my first post on here and I am sorry for it being a "Help me" one.
So yesterday I found my S4 Active again and I remembered it having problems booting up and being stuck in a boot loop. So I powered it on and it worked fine (exept for the lower halve of the touch screen not working, but I think that's another Problem). So I took out the battery. A couple of hours later I tried turning it on again, but this time I had the same Boot loop. When I insert the battery nothing happens (so no stuck Power Button). If I then press the power button it turns on. After the Samsung Logo it goes black for a while but the Backlight is on. After this it shuts down then turns on again but only for a short Moment (no Samsung Logo visible but it vibrates). Then it turns off again and turns on again and flashes the Samsung logo and so on. If I try to Boot into Recovery mode, sometimes it enters Recovery for a second and then turns off and on again but most of the time it just turns of after the Samsung logo and shows the same behaviour as described above.
I am able to enter Download Mode though. If I go into it and press down (to Abort Download Mode) it goes into Boot loop. If I press volume up I am able to flash through Odin ( I did this to flash the stock Rom 5.0.1 again, but it did not help at all). I also noticed that if I attach the phone via usb to the computer but no battery is inserted, the Backlight flashes every 2 seconds or so.
So does this look like a Hardware defect or is there any hope for me.
Thanks

SM-T810 stuck in boot loop, unable to enter in recovery or fast boot

After I tried to backup the device with TWRM, I am now stuck on the boot screen with "samsung galaxy tab s2, powered by android" screen.
I am unable to do anything: turn it off, power + volume up + home or power + volume down + home" nothing actually do anything.
The only think that change something is it to wait battery run out of energy, then the screen turn black but as soon as I plug the charger the same screen "samsung galaxy tab s2, powered by android" come again, I didn't even pushed the power button.
The device was rooted long time ago and was still with the original rom (5.0.1 or 5.1.1 I believe, i am unable to verify).
Any help is welcome!
bump,
I tried removing the back cover, now I can reboot the device more easily just removing the battery connector, before I had to wait the battery run out of power.
I trying the boot the device with the "volume up + home + power botton" pressed.
But still no luck.
Is there a way to boot an alternate rom on the device ?
it turn out that removing the back panel actually disable power or volumes buttons, so putting back the backpanel let the "power + volume down" reboot works, then shortly after doing "volume up + power + home" button let me enter odin mode, now I need a stock rom...
i recovered the device, i just had to install old version of twrp new version did brick the device
bpereira75 said:
i recovered the device, i just had to install old version of twrp new version did brick the device
Click to expand...
Click to collapse
Just got this tablet and I am about to flash a rom on it. This would be my first time, I was gonna update latest twrp and latest lineage os. You think this issue will occur to me?

Can't boot up phone with magisk installed (s10+)

Android 10 newest version.
So I installed magisk and everything went fine.
But when i switch off my device and turn it on I cant boot it up. It's stuck on the splash screen (turns on, splash screen, warning screen, splash screen) and keeps repeating. i cant boot into recovery either.
From what i read to boot into magisk on a s10+ you have to hold bixby+volume up+power, and to boot into recovery press those three, but when you see the second splash screen let go of the bixby button and keep holding the power+volume up.
I have flashed TWRP through the official twrp app, and maybe that's the problem? Maybe i don't know when to press those button combinations, but i have tried quite a few time and i just cant move past the second splash screen.
Please help.
Bluetinity said:
Android 10 newest version.
So I installed magisk and everything went fine.
But when i switch off my device and turn it on I cant boot it up. It's stuck on the splash screen (turns on, splash screen, warning screen, splash screen) and keeps repeating. i cant boot into recovery either.
From what i read to boot into magisk on a s10+ you have to hold bixby+volume up+power, and to boot into recovery press those three, but when you see the second splash screen let go of the bixby button and keep holding the power+volume up.
I have flashed TWRP through the official twrp app, and maybe that's the problem? Maybe i don't know when to press those button combinations, but i have tried quite a few time and i just cant move past the second splash screen.
Please help.
Click to expand...
Click to collapse
I can however boot into download (odin) mode by pressing the volume down+bixby and connecting to my pc.
try to reflash twrp . but using twrp from @ianmacd and flash using odin.
put ianmacd's twrp .IMG into .TAR using 7zip and flash Odin as AP @Bluetinity custom twrp is better than official ?
https://forum.xda-developers.com/ga...ecovery-twrp-3-3-0-galaxy-s10-exynos-t3924856

bricked?

I was trying to go back to stock after having Lineage installed but it crapped out during the install. The tablet is now stuck on the SAMSUNG logo screen and it seems impossible to do anything to get around it. The only button combo options that work are power+vol down which reboots and power+vol down +home which puts it into download mode. I've tried reloading the stock firmware and twrp using Odin but it always results in the same, the tablet reboots then goes to the standard android update screen, says it's doing an update and then reboots and it's back to the SAMSUNG screen. Nothing I do gets me into recovery and while Odin connects I can't get ADB etc to.
Any suggestions other than throw it in a drawer and forget about it?
TIA
Ok I got further. I left the tablet for the battery to die, then fully charged it, plugged into the PC and then started with the recovery key combo and bingo got the No Command screen then the standard recovery options. Deleted the cache and did a factory delete/reset and it's alive again.

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