SM-T800 stuck in boot loop - Galaxy Tab S Q&A, Help & Troubleshooting

My Samsung Galaxy Tab S has't been working for over a year. When I turn it on, it works normally for couple of seconds, then turns off and starts the boot loop.
It doesnt boot up again when charging though. When I charge it, it also shows a grey battery sign (which turns into the normal green charging sign after 3 seconds) right after turning off.
I already tried a factory reset and flashing the firmware through odin. The latter worked for 10 minutes but then the loop started all over again.
Has to be a hardware issue right? Should I change the battery?

What do you mean for 10 minutes? The device powered on normally and then just shut down and started boot looping after some minutes?

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[Q] Google Logo + "Charged"-icon boot loop + recovery reboots after a few secs

[Q] Google Logo + "Charged"-icon boot loop + recovery reboots after a few secs
Last night my phone shut off, I figured it was because of no batt, I stuck it in the charger and haven't been able to boot since. It shows the "battery full" logo when in the charger, I can turn in on, it gets as far as the google logo and then back to charger. Recovery mode doesn't work and it actually boots me to the old samsung one, not the custom recovery I've got installed, and shows the screen for a few seconds then reboots back to the charged-icon.
It's annoying and frustrating to say the least. Does anyone have any ideas?
I just go it back from a screen-digitizer change, the phone first off seemed weird, the battery doesn't seem to fit properly anymore and they forgot to remove the protective plastic on the front camera, but it worked, sort of, it acted a bit weird like it was slower or something and I had problems properly getting it to charge and just before the crash yesterday the screen had some thin bars flickering up and down it. Also a few weeks before the screen broke (I dropped it 1 feet on to a sharp corner) I had the charger plug fixed, since it was broken, apparently.
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HALP?

Phone wont boot

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Galaxy Nexus Bricked.....???

So my galaxy nexus won't turn on or go into download mode or anything.
Only response I get is when I connect it to charger it shows the battery is charged and then it goes away,
and when I plug it in the computer it shows unrecognized usb device and then it goes away then it shows unrecognized device again(this happens in a loop)
how it supposedly got bricked: I was just using phone on a CFW, and after changing some voltage settings from some voltage control then applied, and then screen flickered and then it turned off, I turned it back on and everything was working but after 5 seconds same thing happened, then I turned off and on again and still same thing happened, after a few more tries it just stopped turning on ;-;
I have the same issue but hadn't made any changes. The battery died the other day and it didn't come back. I can boot into the bootloader and when I choose start or recovery it just goes back to the full battery logo.
therock11 said:
I have the same issue but hadn't made any changes. The battery died the other day and it didn't come back. I can boot into the bootloader and when I choose start or recovery it just goes back to the full battery logo.
Click to expand...
Click to collapse
Would getting a new battery fix this?

Boots to logo animation, freezes & the speaker makes a harsh hiss for .5 sec then off

Boots to logo animation, freezes & the speaker makes a harsh hiss for .5 sec then off
Hi guys,
I've had no problems with my LG G3 since I got it.
I'm running stock 4.2.2 Kitkat, unlocked, bought from a retail store in Sydney (JB HiFi).
No rooting or anything else done to it.
My battery hasn't had any issues, still easily lasts the whole day.
The issue:
Today I pressed send on an SMS, the system froze for a few seconds, then powered off.
Pressing the power button did not turn it back on, so I pulled and replaced the battery and powered it on.
It starts booting, gets to the LG animation screen, it animation continues for a while, then freezes for a second and makes a loud/harsh hiss from the speaker for .5 sec then powers off.
Every time after it powers off I have to pull and replace the battery before I can power it back up
No water contact etc
What I've tried:
I've pulled the battery and left it out for 1/2 hour, then replaced the battery and powered it on, same issue dureing boot up
I've confirmed my battery is fully charged, and have tried powering it on while on battery
Removed the Micro SD card and tried to boot again, same boot issue
I've tried a factory reset, it starts to do the reset and then the same issue during boot up happens
Any suggestions would be much appreciated!
Update
So further to my original post:
After I left it off for about 5 hours I powered it back on and was able to complete the factory reset and boot into the Android OS and start using it again, after about 20 mins it froze up again and powered off
I took it to a phone repair shop and they advised they didn't think there was anything wrong with the hardware but was likely a LG OS software issue
Oh, and I should have posted 4.4.2 for the OS, not 4.2.2. Is Kitkat.
I'm wondering if I were to use LG software to update the OS to Android 5 if that might help? Or may make things worse...?
Upgrade didn't complete
So I tried to run the update through the LG software.
Got about 50% through and then the phone powered off again.
Subsequent retries don't even get that far, they get to about 2% and then the phone powers off.
Surely this is a hardware issue?
Ok, well, I've put it in for service...

Stuck in Bootloop and no charging after phone went into download mode while charging

Hello,
I just had my phone turned off and wanted to charge it, and it did, then I came back to see a screen saying 'firwamre update' and a progress bar at 0% for minutes. At the bottom of the screen it said in box '910K B68'
Now my phone got stuck in a bootloop and won't charge anymore. I reinstalled Fulmics 6 and I try to let it boot normally.
Any idea what I can do about it not charging? I didn't touch it since it charged and now it seems destroyed

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