S7 Edge crashes and reboots at Samsung logo, hardware or not? [All Stock] - Samsung Galaxy S7 Edge Questions and Answers

Im so lost with this, im all stock but one day my phone just freezes then bootloop, I would be able to get it work by just leaving it and let it drain itself since it will be boot looping and lock me out completely, like the power button + low volume button would not work even after 10 minutes of holding it, would not boot to download or recovery mode, just the soft touch keys light on and the blue LED.
I reflashed my ROM from sammobile yesterday but did it half-effort, just dirty flashed it but it seemed to reformatted my phone anyway, after reflashing it, everything seemed to work properly for 20 hours and then now im back to this piece of ********* boot looping...
S7 Edge
running the Australia unbranded XSA-G935FXXS1DQG4 from the branded G935FXXS1DQG5,
would flashing de-branded affect this? or this is hardware?, one thing I did that I think was a mistake is that I chose to restore from old device, can apps cause this?
the very first time this happened, I plugged it in to charge then crash and bootloop.
UPDATE:
Things I've tried,
-Booting with NO sim card and SD Card
-Wiping cache and partition then reflashing stock XSA and OPS firmwares
im convinced that this is a hardware issue and will go to Samsung.

mine does this too. crashes then gets into a bootloop at the Samsung logo. I usually try holding the lock and volume down button. I factory reset the phone once but it still keeps happening, this started happening around 4 weeks ago

Guys your Main/Mother-boards are broken.. u need to replace it, or send back to Samsung..

Damn! Crash reboot samsung logo
Damn you say broken mother board...
did this. Press vol down, power button and home key...hmmm... i think...pressed so many combos hard to tell themapart

Related

[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] SGS4 i9500 boot loop from hell.

I was checking Facebook when suddenly the phone restarted, but it got stuck at the first boot logo over and over...then i tried several steps to figure out what's going on.
*First I took the battery out, leaved the phone without it for about 5hrs, then I put it back and no luck... (The SD card was also removed.)
*Later I tried with a different battery and no luck, the phone keeps restarting over and over...
*Tried entering in Download mode and nothing works, the phone does not respond, and then it restarts...
*Tried doing a hard reset, but the phone does not respond to (vol up + home + power)
*Changed the SD card with a new one, nothing.
*The battery is not swallowed.
*The device was rooted and running Omega ROM V17 Android 4.3 (rooted it in December and had no problem).
WTH is going on?, if at least i could use download mode to fix it
(another thing that looks strange to me is that as soon as I put the battery on the phone, the device turns on intermediately and I think it's not normal because the device does nothing until the user turns it on.)
Please any help, this issue is over my head.
Thank you so much.
Download mode and recovery is available??
It can be 2 things:
- You have a faulty battery.
- You have damaged hardware.
No flash is going to help you. It's just bad luck.
Probably your power button was broken and stucked. If you still have warranty, send it to repair in samsung service center. This used to happen to my i9500 once.
Sent from my GT-I9500 using XDA Free mobile app

Random reboots and won't power off.

So here's the story.
I have a Note 3 I acquired that was in pretty rough shape. According to the person that gave it to me, they had tried to flash a rom that was unstable and crashed the device causing a boot loop he couldn't recover from. So he reported it lost and got a new one.
The first thing I tried was installing stock firmware using odin. This at least allowed the phone to fully boot up. But, it would still restart after about 10 mins of usage. The next thing I tried was flashing TWRP on to the phone and doing a complete wipe of the phone. Then I flashed the stock firmware using odin.
This has brought the phone more or less back to a usable state. However, there are new problems.
The phone reboots at random. Usually after being on for an hour or longer. Also, the phone won't power down. When I long press the power button and select power off, the screen shows that it's powering down. The phone stays on the power down screen for about 2 mins then the phone reboots.
I've tried a factory reset and reflashing the stock firmware.

Phone keeps restarting at recovery screen

Hi guys,
I have an issue with my phone:
Yesterday, tried to restore factory settings, since the phone was quite slow.
A second or so after I confirmed the reset, the phone turned off and wouldn't start.
I took out the battery and it was swollen.
I bought a new battery today, inserted and stated the phone.
What happens now, is that the phone boots, Samsung logo appears, then the TWRP logo appears, from this point, the phone stuck at this logo screen,
and flashes every few seconds (I can't post a video here, so I can share the link in private, if anyone can take a look).
I tried to leave the phone for about 20mins without battery at all, removed SD cards, removed SIM cards, no use.
Trying to boot to recovery or download mode gives the same result.
Tried today with an original battery of a friend's Galaxy S4 , same result.
Does anyone have an idea what I can do?
Thanks in advance for you help
webking said:
Hi guys,
I have an issue with my phone:
Yesterday, tried to restore factory settings, since the phone was quite slow.
A second or so after I confirmed the reset, the phone turned off and wouldn't start.
I took out the battery and it was swollen.
I bought a new battery today, inserted and stated the phone.
What happens now, is that the phone boots, Samsung logo appears, then the TWRP logo appears, from this point, the phone stuck at this logo screen,
and flashes every few seconds (I can't post a video here, so I can share the link in private, if anyone can take a look).
I tried to leave the phone for about 20mins without battery at all, removed SD cards, removed SIM cards, no use.
Trying to boot to recovery or download mode gives the same result.
Tried today with an original battery of a friend's Galaxy S4 , same result.
Does anyone have an idea what I can do?
Thanks in advance for you help
Click to expand...
Click to collapse
Sound to me your power button is stuck/faulty. Does it reboot also when in download mode? If so, then it's your power button. Wiggle it loose or replace it.
Lennyz1988 said:
Sound to me your power button is stuck/faulty. Does it reboot also when in download mode? If so, then it's your power button. Wiggle it loose or replace it.
Click to expand...
Click to collapse
It never gets to download (or recovery) mode...
It keeps flashing at the logo of the TWRP
Trying to boot to download or recovery modes, gives the same results
I don't think it's the power button. Otherwise it would turn off if it is stuck or not turn on at all if it's faulty.
Still, I wouldn't exclude it.
The screen flashing might related to a GPU problem. I don't think it is a problem you can fix yourself.

S7 Edge crashed - has my phone bricked?

Hello Community!
Hoping you'll be able to help me with this: recently my S7 Edge has been fairly unstable, crashing and restarting itself. Sometimes the reboot would fail, and it would loop restart until successfully launching. Today, however, it has seemingly crashed but the phone has done nothing since - it has not attempted to reboot, and power + vol down, and power + home + vol up aren't doing anything. The screen is black, and there are no LEDs showing. I tried plugging it into a charger, but that didn't give any LEDs either.
How can i get my phone on again? Thanks!
stock or custom? odin or just pc dont recognise it?
wifes phone just had same issue. stock updated to latest September update that rogers pushed down today it rebooted on its own a bunch of times and now wont turn on....like nothing.
i was getting the failed to find /misc a bunch then i tired clearing cache but still had issues
now i was going to try to do a factory reset but it wont boot.

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