[urgent] suddenly reboot itself - Galaxy Tab 7.7 General

my p6800 suddenly reboot itself and now hold in the splash screen, white word "Samsung GALAXY Tab 7.7"
hold on this screen around 15 mins now, tried use cwm restore or flash a new rom, tried wipe cache, factory reset, what should i do?
what happen??

I had the same problem twice and I had to hardreset it... power off , hold power and vol up , then release power, select hardrest from the screen menu.

I just had this problem! Happened to glance at it on the table and it was just rebooting. Working okay after reboot but why would it do that?

Mine reboots itself when something happens to wifi. When my wifi is unstable, so is tab.
Yesterday my friend rebooted his wifi router, stating: rebooting... Now. And indeed at that same time my tab reboots
Verstuurd van mijn GT-P6800 met Tapatalk

Related

Galaxy Tab Stuck on Bootscreen

I was just browsing through few apps when the tab froze and I reset the tab by holding down the power button - now it fails to boot - its stuck on the samsung logo that breathes and vibrates for a bit and repeats vibrates after few seconds.
Anyone got any clue?
Cheers
EDIT: managed to get it booted with wiping data and cache :/

[Q] Unusual bootloop

Hi all, i installed the CM11 on my gf's Galaxy s3 (i9300 international version), the problem is that sometimes it randomly reboots and get stuck in an unusual bootloop. It reaches the bootsplash logo and it keeps rebooting, the only solution to get it back to work is to remove the battery for at least 30 seconds and try to turn it on, sometimes it works.
When the bootloop happens i'm not able to enter the recovery mode, because it just turns on and it keeps rebooting, same thing with download mode.
So, i'm new here, but i read about a common issue which is the sudden death syndrome and half-sds, it might be that? I checked and it has the insane chip.
Any advice/idea? It would be better to flash a stock ROM to be safe?
I would backup the whole device, recover initial firmware using kies emergency recovery mode and then start over again.
Had a similar problem but even worse: same bootloop, but no dice on recovery :\
Was unable to reflash or restore old firmware using Odin, Kies was the only thing that worked for me.
Nemed said:
Hi all, i installed the CM11 on my gf's Galaxy s3 (i9300 international version), the problem is that sometimes it randomly reboots and get stuck in an unusual bootloop. It reaches the bootsplash logo and it keeps rebooting, the only solution to get it back to work is to remove the battery for at least 30 seconds and try to turn it on, sometimes it works.
When the bootloop happens i'm not able to enter the recovery mode, because it just turns on and it keeps rebooting, same thing with download mode.
So, i'm new here, but i read about a common issue which is the sudden death syndrome and half-sds, it might be that? I checked and it has the insane chip.
Any advice/idea? It would be better to flash a stock ROM to be safe?
Click to expand...
Click to collapse
Do the reboots occure few seconds after pressing the power button?
I have exactly the same problem and I figured out that my power button is kinda stuck and thus permanently pressed.
This causes the permanent reboot, because holding the power button for a certain amount of time causes a reboot.
Try to push "Vol down"+"Homebutton" instantly after a reboot. If your galaxy enters the download mode (before rebooting again), you have the proof, that it's the fault of the power button due to the fact that pressing the power button would have been necessary.
I hope the fix will be for free under warranty.
At the first moment I also thought it would be the Sudden Death syndrom, but thankfully it's not the case and only the power button has to be fixed.
Togholl said:
Do the reboots occure few seconds after pressing the power button?
Click to expand...
Click to collapse
I don't know, i didn't paid attention to it. Anyway thanks to both of you for the replies, i'll check the power button as soon as possible since i don't have the phone with me right now. If that's not the cause, i think i'll do an emergency recover with kies as suggested by Cy4n1d3.
Now i still have a doubt, CM11 should have the fix for the sudden death syndrome merged into its code right? I'm asking this because if i'm right i could exclude sds as the cause of the problem...
Rebooting is not an SDS symptom, SDS is totally dead -suddenly.
Power button failure is diagnosed by inserting the battery, if it turns on by itself then button contacts are shorted out.
Your problem sounds more like corruption of the cache or dalvik, wipe and reflash your rom or go back to stock to test. Check MD5 of downloads and don't restore anything before you test.

[Q] Samsung Tab 4 7.0 SM-T230NU won't restart.

I am trying to fix my friends Tab 4 SMT230NU. It powers on just fine, but when I try to restart from the power button. It shuts down then never powers up again. I took the back case off, removed the battery for 10 minutes then plugged it back it and it powers on. As long as I don't choose the restart option it will power on and off just fine. I did a hard reset, clear cache, then reboot thinking that would fix it but being that a reboot is the same as restart I get the same result. It does the system restore. I tried OTA to the newest firmware which fails at the reboot. Tried Kies with the same result. Non-Rooted Tablet. I tried ODIN with the new firmware, which worked on another 230nu tablet, that was stuck in a boot loop, but no luck with the one Im working on for my friend. Screen is cracked could that be the problem? Is the motherboard just jacked? Loosing hair over what I think should be a simple fix.

Samsung Galaxy Tab 4 reboot loop but without working recovery mode

Dear Galaxy tab experts!
I have read on several places in the Internet that some people has suffered
in a boot loop. The Internet recommends to do a hard reset via
the recovery mode. OK. Unfortunately, my device fails to enter the recovery mode.
My Samsung Galaxy tab 4 SM-T530 has been working fine for for about 2.5 years
until last weekend. Now it does not boot but stays in a reboot loop. That
means that The boot logo shows up for a while and disappears after
about 10 seconds.
I was searching the Internet and I wanted to try out the recovery mode
but I am not able to reach it. When I press Power + Volume Up + Home buttons,
the label "recovery booting ..." appears in the upper left corner of the
display for a while and thereafter, the boot loop continues.
Fortunately, I am able to shutdown my device by pressing
the Power + Volume Down buttons.
The tab has been used about 10 hours per week. I have never uploaded
any ROM or firmware.
The boot loop has started when I was charging my device. I used the
official Samsung USB charging connector as always. During the
charge process, I wanted to see the charge progress like I
have done it many times before but I only saw a grey battery and after that,
the boot loop has started.
I have no problem to do a hard reset and to wipe out my data.
My device contains no important personal data.
What do you recommend to get my device working again?
Thank you in advance!

Weird S7 Edge Problem Blue LED Black Screen

Starting from the beginning: My phone crashed restarted several times and then black screen with blue led. Then I had t wait for the battery to die because none of the home power vol, power vol keys worked. Eventually got it into recovery mode selected wipe cache restarted same problem.
Now the phone even boot into recovery. It just stays on the blue screen saying "Installing system update" . The little recycling loading icon spins a couple times then its just stuck. Resorted to losing everything and installed smart switch and did emergency restore. Flashed a few times still no joy. Took it to shops they charged it turned it on and its reset to factory. Got it running again, only for it to go into a boot loop. Curious if it was actually fixed, i booted into recovery mode same issue and now back to square one. (I did let the battery die and started it up, came to the home screen and it started rebooting again to black screen and blue LED again.)
I do intend on sending it back but I am wondering could be that the recovery partition is corrupted?

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