Phone randomly goes into bootloop - Nexus 6P Q&A, Help & Troubleshooting

My phone has always worked great for me but today it went into some sort of boot loop where the word "google" appears for a few seconds then disappears then reappears, etc. I can hold down the power button and the volume down button and go into the menu with recovery and bootloader, etc. I can get it to eventually reboot but it happened again a few hours after the first time. Is this a known problem and is there a fix? I have not unlocked it at all since I have had it, thanks for any help.

Related

Atrix Power On Problem

I have a bell atrix unlocked boot loader, rooted. The problem is when the phone is off, the slightest pressure on the power button turns on the phone. Normally with other phones you have to press and hold the power button for a few seconds before it turns on, this one the slightest push and it boots up! This is very frustrating I was wonder if others have the same issue, if theres a fix?
I have tried over 6 custom roms, and its the same issue. I cant remember if the phone was like this before unlocking the boot loader, as I unlocked it first day.
It's normal for ours phone...

[Q] turning screen off crashes phone

I have the strangest damn problem on my phone. Sometimes, when I press the power button to turn the screen off, the phone just shuts down completely and then when I try to reboot won't get past my splash screen. When this first happened I couldn't get the phone restarted at all, even by taking the battery out and waiting for over 10 minutes. Everytime I tried booting it would go to the splash screen and then blank back off. It would do this once and then I had to remove and replace the battery just to get it to boot to the splash screen again. I thought this might have something to do with having a custom rom installed (sacs custom), so I played around with the phone and managed to get it in Odin mode. I then brought the phone back to stock. Everything worked so I figured I had fixed it, but then after pressing the power button one time I got back the same problem. It shutdown and would not restart past the splash screen. In retrospect, I think when I pressed the power button the screen did not immediately go off and so I clicked it a couple times in a row before it crashed, that may be what triggers it, b/c sometimes i press the power/screen button and it goes off without incident.
So, now I had the phone back to stock and had the same problem. It turned off and would not boot past the splash screen. By a stroke of good fortune I figured out how to get the phone booting again past the splash screen. When the splash screen came up, I started repeatedly touching and swiping at the phone; drawing little circles tapping at it, etc... When I did this the phone continued to load and boot up normally.
I installed AVG antivirus, to see if maybe there was malware on my phone. Scans showed nothing. I updated all of the software as well. I now have an app installed for turning off the phone instead of using the power button. This of course is not an ideal situtation, why should pressing the power button crash my phone like this??

Updated to 7.0 and it started Rebooting.

Hello, so, the phone was working perfectly until i updated my Z force to 7.0 and after that, my phone restarts and bootloops until i enter the bootloader and turn it off from there, and i have to leave it like 5 mins off so it can turn back on without bootlooping, (I bought it outside USA, so i cant send it to repair), i also noticed that if i press only VOL down without pressing the power button itll let me into the bootloader, i already tried the Verizon software update assistant and it keeps doing the same, any idea what this might be causing it?
Are you sure its stuck in a loop and that the power button isnt stuck, if you dont have to press the power button it seems to me it may be getting stuck and causing it to cycle power
We have the same issue!!!

Samsung S4 stuck on first logo screen

I only use my S4 to listen to Spotify and Podcast, no other apps are present. I use it until I the replacement Headphone thingy comes for my Nexus 5x.
It's my old phone and it worked great until yesterday when my screen went completely pink and then my phone restarted. Now it's stuck on the first logo screen.
Not the Samsung animated logo screen, but the very first completely white text Samsung Galaxy S4 logo, I can't post pictures.
I am using a Cyanogenmod Rom because of the memory leak bug on stock rom.
I can't boot to recovery because it just boots for few seconds, then shuts off, vibrates 2 times and goes back into the boot screen where it's stuck.
The vibration thing happens everytime I try to boot the phone. The logo comes up, it shuts down, vibrates twice and then it gets stuck on the logo indefinitely.
I can boot to Download Mode and I can't boot to Safe Mode.
Any ideas what I could do? I really want to listen to stuff again.
Could be a power button issue. Open the phone, clean the power button contacts with a bit of pure alcohol, quickly press and release the power button several times in a row using a bit more pressure than usual, reassemble the phone, and see if it works.
audit13 said:
Could be a power button issue. Open the phone, clean the power button contacts with a bit of pure alcohol, quickly press and release the power button several times in a row using a bit more pressure than usual, reassemble the phone, and see if it works.
Click to expand...
Click to collapse
It's still stuck the same way.
When I got to the Recovery Screen once, the screen turned yellow and phone restarted.
The power button may need to be replaced. Do you have a multimeter to test the connections?
@audit13: I've got a feeling the power button isn't his issue. On a properly working S4 the screen wouldn't flash a particular color before rebooting. Given that this happened to him suddenly, I think he has an issue with the SoC itself.
audit13 said:
The power button may need to be replaced. Do you have a multimeter to test the connections?
Click to expand...
Click to collapse
I have a almost dead S4 i9515 model here, it stopped working.
Here at home I plugged it in and it vibrated continue and nothing more.
Tried a couple of times to go to recovery (unrooted, so the standard recovery) and one time I got a Samsung logo with something blue in the top left side of the screen and nothing else.
Cleaned the power button and started the phone and got the Samsung boot logo, but it got stuck in the logo loop.
How can I check the power button with a multimeter? Is there a trick to get to the connectors?
You need to remove the back frame to access the power button connectors. There should be there of them. Without the power button pressed, touch the probe across the outer two and see if there is any current being passed.
https://m.youtube.com/watch?v=2l_6fwzuIwA
Will try it this weekend, if it is the button I will just take it out, and try it that way till I get a new button.
Thanks for the tip!
Well, the button was not the problem, see next post
While starting it won't pass the Samsung logo boot,
while starting via recovery (power, home vol-up) I still won't pass the Samsung logo screen, but now with the message in the top left screen 'Recovery Booting...'
It's dead I believe, the power button is okay, but after a few difficult boots, it wouldn't pass the Samsung logo.
But now it doesn't respond at all anymore.
Is there a way to access this phone?
Via adb or Odin? I don't think so, if the phone doesn't startup I can't do anything...?
It is bye S4 I guess...
I am blocked here too with a GT-I9506, and can't fin anything, so yeah, i guess it's dead, mine too
Time for something new...
Anyone managed to revive his I9506? I have similar problem, if you can guys look into it and tell me that you have tried this already:
https://forum.xda-developers.com/galaxy-s4/help/i9506-stuck-gt-i9506-logo-recovery-t3659795
Can't help you there ?
But I am looking for a new motherboard...
HaroldNL said:
Can't help you there
But I am looking for a new motherboard...
Click to expand...
Click to collapse
I think it will be the best way. It's third day of flashing stock firmware from 4.3 to 5.0.1 NEE an TPL. There ware two times that phone actually booted to recovery and green android appeared. But then phone rebooted and still can't get up.

Screen suddenly shut down (or tablet?)

Hi all.
I have this strange issue with my Lenovo Yoga Tab 3 plus (YT-X703F): while using it, suddenly the screen goes off. I cannot say that the tablet itself goes off because I still can see some backlight on the screen. It happens a few minutes after I start to use it. Then I keep pushing the power button till it vibrates and restarts. Again a few minutes and goes off.
Sometimes, after I restart by keeping push the power button, it entries into a boot loop.
Already tried a hard reset but didn't help.
If I succeed in power on and I do not use it for a while, when I get it back it works (mean didn't switch off when hidle).
I'm not able to enter into recovery mode, any combination of power +vol up or down didn't show me the menu.
Any idea how to recover this device? Is there any method to flash bios/rom or anything else I can do, something that I can do without to entry into the recover menu?
Thank you everyone for your help.

Categories

Resources