Boot problems with 8.4 - Galaxy Tab Pro 12.2, 10.1, 8.4 Q&A, Help & Trouble

I just went to turn on my tab pro 8.4 and it will constantly try booting into recovery, but when it hits the TWRP load screen, it just reboots and the cycle repeats. What should I do?
i've tried holding down the power and volume down buttons until it restarts but it just goes right back into the loop. I can't even manage to get the damn thing to turn off entirely without it rebooting.

Can you get into download mode?

Related

Cant turn the screen on and stuck after screen off

My One X works properly for close to 2 years but last 2 weeks my phone start to have strange problem. It will randomly reboot and stuck at boot up or sometimes after screen off I cant wake it until I hard reset it by holding power button. And a lot of time it will just stuck during boot up with HTC logo and cant go into OS. I tried to return to stock by flashing nandroid backup, even reflash the hboot but the problem still there. I tried connect the phone with my pc and I can hear the usb unplug sound from pc after the screen off for some time. However, it is not stuck in sleep everytime, but often. Anyone have any idea what was wrong?

[Q] Stuck in Boot Loop

Hello
Have a GS3 running Rootbox 4.2. Was running stable for probably around 6 months, no issues at all except for the occasional random reboot which seems to plague all S3s.
Felt it vibrate in my pocket, assumed I had a message. But when I looked it was restarting. It gets to the rom loading screen then abruptly restarts.
Now it even doesn't get that far. The samsung screen shows up and the phone restarts in a loop.
Cannot stay booted into recovery. CWM recovery screen shows for about 2-3 secs then phone restarts.
Download mode through odin works, but I'd like to avoid wiping everything if at all possible.
thank you for any help.
an easy try to fix is to pull battery , wait a couple minutes and then either just hold power button till vibrate or do button combo to get to recovery.
"all i can really do , is stay out of my own way and let the will of heaven be done"
Try re-flashing an updated version of CWM via Odin and see if you can remain in recovery mode.
Thanks for the replies
Tried pulling battery for few mins (actually a few days since I did not have time to mess with phone) - No good, phone gets partway through the rom load screen then reboots.
Tried the odin suggestion - home +vol. down+ power opens download mode, but download mode stays open for around 10-15 sec before the phone restarts itself.
I have tried swapping back to the oem battery since i have an extended battery and the problem still remains.
Sounds like a hardware problem to me since you can access download and recovery but it turns itself off. You've tried a couple of batteries so that kind of rules out any software issues.
Did you try booting the phone with a de-brick image from XDA?

[Q] Galaxy Tab 3 stuck in boot cycle after root

Hi Wonder if anyone can help?
I downloaded mirror beta from the app store to mirror my Galaxy Tab 3 SM-T210 to my apple TV3g.
Once downloaded i was informed that the device had to be rooted, so I used Kingoroot and followed the instructions. Everything was fine during the rooting process and completed informing me that it was successful.
The problem is after this the Tab is stuck in a constant cycle mode of the Samsang GALAXYTAB 3 boot logo.
I have managed to power it off ( Black screen) but have been unsuccessful in getting the device into recovery mode to try an hard reset.
I have tried all the button combinations I could find on Google but it only just shows the galaxy screen. Any help would be much appreciated since it is my daughters tablet and ill be in a valley of it if I cant get it restored.
Thanks in advance
Have you tried to Boot your Tab into Download mode?
If this working , flash Stockrom with Odin.
I'm in a similar situation with the logo boot loop except I am unable to shut it down. I hold the power button for 10 seconds and it reboots right back to the logo again with no shut down. How can I shut this down?
Strizay said:
I'm in a similar situation with the logo boot loop except I am unable to shut it down. I hold the power button for 10 seconds and it reboots right back to the logo again with no shut down. How can I shut this down?
Click to expand...
Click to collapse
I got in the same situation trying to root my Tab. I wound up holding the power button down a really long time and then gently releasing; then I booted it into recovery and there is an "unbricking your 10.1 " post on XDA that has a stock 4.2.2 link.
Once you get the thing into recovery, and it took several attempts (like for two days)- I had given up and was thinking I had finally truly bricked an android) I got it into recovery and then used Odin to flash the original stock rom and it worked. Then Samsung almost immediately downloaded the OTA and I was at 4.4.2 stock.
The sd card slot is broken, so I am still trying to get the tab rooted, but for now just having it functioning in stock form is better than that Galaxy emblem slowly flashing every 5 seconds until the battery dies (Itried that too, thinking it may somehow recharge and reboot and something would be different-no such luck)
But I found holding the button down persistently made the difference, at least it seemed to.
Good luck

SM-T800 stuck on battery charging screen and wont boot

So I was trying to install Marshmallow on my SM-T800 and got stuck on the Samsung splash screen. When trying to get back to recovery mode I accidentally booted into download mode. I exited download mode but now the tablet is stuck displaying the battery charging image, even when unplugged, and I cannot get it to boot.
Any ideas? Should I just leave it alone for a few days to let the battery drain and then try booting again?
jburdick7 said:
So I was trying to install Marshmallow on my SM-T800 and got stuck on the Samsung splash screen. When trying to get back to recovery mode I accidentally booted into download mode. I exited download mode but now the tablet is stuck displaying the battery charging image, even when unplugged, and I cannot get it to boot.
Any ideas? Should I just leave it alone for a few days to let the battery drain and then try booting again?
Click to expand...
Click to collapse
Have you tried all the key combinations?
Do you have a USB JIG?
I'm not sure how installing a rom has affected the bootloader as that's pretty much impossible.
Regardless of what's on screen now, hold POWER + HOME + VOL DOWN until download mode appears.
If still no response you may have to wait until the batter dies.

S4 Mini I9195 stuck a boot loop

Wonder if anyone can help, my s4 mini seems to be stuck in a boot loop. The problem started the other morning where the phone wouldn't turn on. with any buttons pressed in different sequence. then after hitting the phone power button side the phone vibrated and booted up to the samsung logo screen, then vibrated and turned off and it's stuck like this unless i remove the battery
I can get in to download mode but if i try recovery it just says recovery booting... then after 5 seconds it gows back in to the boot loop.
I've tried cwp and twrp odin says everything is ok but i still get the same booting screen then the reboot. i've even tried a stock firmware for the phone from sammobile with the same effect, i'm not sure which firmware i need as there are a few for this phone i tried a couple one had an error so tried another which seemed to be good in odin but same boot loop. grrrrrr
Is there anything else i can try?
thanks
did you found a solution for your bootloop issue yet?
y_

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