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Phone won't boot

Hey guys,
My phone shut off unexpectedly today and now won't turn back on. When I try to power it on I see the Google logo for a couple seconds and then it'll just shut off again. I tried holding the volume up/down buttons to access the bootloader, but right after I get to the screen it just restarts itself again.
Connecting to power (AC or USB) causes it to constantly reboot over and over, it just shows the Google logo for a couple seconds and then restarts again.
Any ideas on what I can do?

rosscarrothers said:
Hey guys,
My phone shut off unexpectedly today and now won't turn back on. When I try to power it on I see the Google logo for a couple seconds and then it'll just shut off again. I tried holding the volume up/down buttons to access the bootloader, but right after I get to the screen it just restarts itself again.
Connecting to power (AC or USB) causes it to constantly reboot over and over, it just shows the Google logo for a couple seconds and then restarts again.
Any ideas on what I can do?
Click to expand...
Click to collapse
Provide more information for a starter - stock? unlocked bootloader? rooted? third party recovery? rom and if yes which?
If it's stock I'd RMA it.
If not what did you do immediately before the problem started?
try holding the power button for > 2 seconds which should turn it off completely, leave it on a wall charger for at least a couple of hours then turn it back on - I doubt it'll fix the problem but it's a simple thing to try...

Clancy_s said:
Provide more information for a starter - stock? unlocked bootloader? rooted? third party recovery? rom and if yes which?
If it's stock I'd RMA it.
If not what did you do immediately before the problem started?
try holding the power button for > 2 seconds which should turn it off completely, leave it on a wall charger for at least a couple of hours then turn it back on - I doubt it'll fix the problem but it's a simple thing to try...
Click to expand...
Click to collapse
Everything on it is stock, no ROM, not rooted. I had just taken it out of my pocket to check the time, put it back in my pocket and then felt it vibrate, took it back out to see it at the Google logo and haven't been able to get it started since. There was one or two times when it got past the Google logo and started to show the start up animation (the four colours bouncing around or whatever it is) but then it shut off again.
I tried holding the power button to completely turn it off, but plugging it into the wall charger just causes it to repeatedly attempt to boot like I mentioned earlier. I'll leave it for a while and hope for the best

Sounds like the mobo is bad. Most likely will have to rma it.

rosscarrothers said:
Hey guys,
My phone shut off unexpectedly today and now won't turn back on. When I try to power it on I see the Google logo for a couple seconds and then it'll just shut off again. I tried holding the volume up/down buttons to access the bootloader, but right after I get to the screen it just restarts itself again.
Connecting to power (AC or USB) causes it to constantly reboot over and over, it just shows the Google logo for a couple seconds and then restarts again.
Any ideas on what I can do?
Click to expand...
Click to collapse
Do you have a case on? The case could be faulty.
Sent from my Nexus 5 using Tapatalk

jd1639 said:
Sounds like the mobo is bad. Most likely will have to rma it.
Click to expand...
Click to collapse
Maybe not. Sounds like a stuck power button to me.
OP does the phone just endlessly repeat this cycle? If so it's rebooting itself do to a stuck power button. One other users already reported similar issues and his power button was indeed stuck. Mash the power button hard for a minute to see if you can unstick it.

theesotericone said:
Maybe not. Sounds like a stuck power button to me.
OP does the phone just endlessly repeat this cycle? If so it's rebooting itself do to a stuck power button. One other users already reported similar issues and his power button was indeed stuck. Mash the power button hard for a minute to see if you can unstick it.
Click to expand...
Click to collapse
You got it!
Thanks so much, really wasn't looking forward to waiting for weeks while the RMA went through. The button didn't appear to be stuck - it was still clicky - but after mashing it for a minute it started up normally and appears to be fine now.

Did you flash any ROMs or anything previously?
Sent from my Nexus 5 using xda app-developers app

scottdouglasdick said:
Did you flash any ROMs or anything previously?
Sent from my Nexus 5 using xda app-developers app
Click to expand...
Click to collapse
brother the issue is gone, as mentioned "sticky power button" was causing it. read the thread before posting. btw thanks for effort anyway... haha
:laugh::silly:

Hi all. Sorry to reopen an old thread (but xda suggested I check here before making my own thread).
I think we have the exact same problem with a Nexus 5. Unfortunately, bashing the power button doesn't seem to be helping (and makes me feel slightly silly .
Anyone know how much effort it would be to take it apart to get to the part that's stuck? Any good instructions?
Thanks.

Weird, I have the same issue starting a few hours ago. I updated to the Oct 17 beta of Cataclysm then a hour later it happened. But was told it sounds like the power button issue.
Took it apart, tried to fix it. If plugged in I can get into the bootloader, but then it reboots again. I've tried tapping it on a hard surface, and it gets seems like it almost fixes it because it'll connect to my laptop but then reboots again.
Could it be the battery? It was fully charged but then died as I was deleting hundreds of photo's in Dropbox to move photo's over from my phone because it was full.

I too am running into this same issue. My screen cracked so I replaced the digitizer with some success. In the process I damaged the battery and needed to replace it. When I got the new battery and replaced it my phone is now unusable.
When unplugged: I turn on the phone and it's running the ANDROID animation then turns off.
When plugged in: I turn on the phone, the ANDROID animation runs then the phone restarts and continues the process over and over again.
I then flashed the phone with Marshmallow and the same thing happens. Except now that I flashed it I get the Android icon with the spinning gear. So; I flashed it back to 5.1.1, but the same result.
Could I have physically damaged something inside or is it a battery issue? Thanks for any insight.

[CRITICAL] [Q] Help with Hardbrick!

Ok, so my Samsung Galaxy Trend Plus has stopped completely operating. When you turn it on, it shows the Samsung Trend Plus logo, but before the boot animation, it gets stuck to a black screen (The screen color is black, the screen does not close). Whenever I press any of the phone's buttons, It will vibrates. It does that every 4-5 times and then theres a long vibration. The phone is rooted, but it runs for about 5 months with root. Im using an alcatel less powerfull charger to charge, due to the reason the official samsung one was broken. Yesterday, I mengled around with GravityBox (But I have GravityBox and Xposed framework since root) on the Navbar settings, and after the phone rebooted, It constantly said [SystemUI has stopped]. This had happened to me like a month ago again, but then I just reflashed the Official Rom via Odin. This time, I chose to just delete SystemUi's apk from /system/apps and then copy it back to the phone from my pc. The phone worked perfectly for a day after that, but when I went to take it out of my pocket at the evening, it was closed, even though 1 hour ago it had like 37% battery. So, I charged, and when It finished, I went to open and the Black Screen problem came out. I can't neither boot in recovery nor Download Mode

zarkotom said:
Ok, so my Samsung Galaxy Trend Plus has stopped completely operating. When you turn it on, it shows the Samsung Trend Plus logo, but before the boot animation, it gets stuck to a black screen (The screen color is black, the screen does not close). Whenever I press any of the phone's buttons, It will vibrates. It does that every 4-5 times and then theres a long vibration. The phone is rooted, but it runs for about 5 months with root. Im using an alcatel less powerfull charger to charge, due to the reason the official samsung one was broken. Yesterday, I mengled around with GravityBox (But I have GravityBox and Xposed framework since root) on the Navbar settings, and after the phone rebooted, It constantly said [SystemUI has stopped]. This had happened to me like a month ago again, but then I just reflashed the Official Rom via Odin. This time, I chose to just delete SystemUi's apk from /system/apps and then copy it back to the phone from my pc. The phone worked perfectly for a day after that, but when I went to take it out of my pocket at the evening, it was closed, even though 1 hour ago it had like 37% battery. So, I charged, and when It finished, I went to open and the Black Screen problem came out. I can't neither boot in recovery nor Download Mode
Click to expand...
Click to collapse
So, it seems your battery is dead, this is nothing to do with software (unless the stock rom killed it), so, buy a new one, or see if it is covered by the warranty

Reply
Yes, but when I put it in the charger, it shows the charging animation....... And then if the battery is dead, how can it power the vibrations and the screen?

KkdGab said:
So, it seems your battery is dead, this is nothing to do with software (unless the stock rom killed it), so, buy a new one, or see if it is covered by the warranty
Click to expand...
Click to collapse
I just tried a different battery, because I have a second Trend Plus, which works perfectly. It still has the same problem.

zarkotom said:
Yes, but when I put it in the charger, it shows the charging animation....... And then if the battery is dead, how can it power the vibrations and the screen?
Click to expand...
Click to collapse
Oh sorry,didnt read properly, I will give you some advice tomorrow. Need some sleep.
Sent from my HUAWEI Y210-0100

[SOLVED] Reply
Sorry for answering a few months later, but I have to say that I had found a solution, which was the fact my Home Button wouldn't be presed in order to get in DOwnload Mode.
I appreaciate all your help.

[Q] Phone switches off after few seconds

Hi,
Guys I am going through some **** right now. Plese read the scenarios below and help me. I got no help at the oneplus forums.
Scenario 1 -
My phone was working fine until last night, I mean this is when I last used it. I switched it off and went off to sleep and in school today when I was trying to power it on the boot logo came and it went and after many tries the cyanogen logo came and it went away there is 80% battery. It doesn't charge also, like the phone recognises the charger but remains at 80% when I go to recovery try wiping cache and data, the phone switches off in few seconds. I can go into fastboot and stay for like 3 seconds then the phone switches off but I can connect it to power and keep it. I am on stock, latest CM12S. The only unusual thing I did yesterday on my phone is that I charged it using a different adapter but same cable. I can't seem to find this issue on google.
Scenario 2 -
Guys,
My phone's really messed up and I am scared to tell my dad cause he warned me before getting it for me. After the OnePlus logo comes, when I press the volume button and hold it, it works and as soon as I leave the volume button, the phone switches off. What is wrong? Do I need to send it back. I got it from Oneplus.cn so I am a bit worried and it's going to be tough to check what's happening.
Scenario 3 -
I removed cm12s and tried to flash oxygenos and I failed so then I installed cm11s and still have the problem, my phone can only boot in safe mode and as soon as I leave the volume button it switches off, same for recovery. Used the onplus toolbox by Inthiaano to install CM11S 44S.

Random Restarts after Update

Hey guys
My device is GS6, few days ago received OTA update. Updated phone like usual and all went fine. Few days later started noticing that device randomly restarting. Today it happened 4 or 5 times so far, mainly when I want to unlock screen, after swipe everything freezes and device restarts.
Also when I left phone on charge, come back to it, unplugged charger and phone is dead, won't start won't respond to anything. After pressing volume key power and home button, I managed to restart it.
What is happening to my phone. Really don't want hard reset it as all settings etc will be gone.
Sent from my SM-G920F using Tapatalk

bakili said:
Hey guys
My device is GS6, few days ago received OTA update. Updated phone like usual and all went fine. Few days later started noticing that device randomly restarting. Today it happened 4 or 5 times so far, mainly when I want to unlock screen, after swipe everything freezes and device restarts.
Also when I left phone on charge, come back to it, unplugged charger and phone is dead, won't start won't respond to anything. After pressing volume key power and home button, I managed to restart it.
What is happening to my phone. Really don't want hard reset it as all settings etc will be gone.
Sent from my SM-G920F using Tapatalk
Click to expand...
Click to collapse
same problem here, phone freezing end restarting, sometime just stop working when i try to unlock screen. help:angel:

Yesterday phone froze and restated few times, it came to stage when it wouldn't boot past Samsung logo. After numerous attempts to start it , it started.
Now I have number 6 above one of home screen folders, just appeared from nowhere. Can't remove it.
Sent from my SM-G920F using Tapatalk

Try a factory reset, maybe same app is the problem.

Done full reset and its much worse now. It woudnt boot correctly after reset, phone started up but during set up process froze and restarted a lot of times. Looks like hardware, but strange it happened straight after ota update

Dead?

Hi,
Been a happy camper since purchase. Am currently on fusionjacks's slimsaber omni marshmallow rom. All was normal today but an hour ago took the phone out of my pocket and it seems dead - won't turn on, doesn't appear to be charging...nothing.
There doesn't appear to be any physical damage and it wasn't knocked or dropped.
I've tried long holding on/off button, trying to boot to recovery and bootloader - nothing
Any ideas??

Maybe the battery is discharged. You should plug it in and let it charge for a while
Gesendet von meinem Nexus 7 2013 mit Tapatalk

frogger55 said:
Hi,
Been a happy camper since purchase. Am currently on fusionjacks's slimsaber omni marshmallow rom. All was normal today but an hour ago took the phone out of my pocket and it seems dead - won't turn on, doesn't appear to be charging...nothing.
There doesn't appear to be any physical damage and it wasn't knocked or dropped.
I've tried long holding on/off button, trying to boot to recovery and bootloader - nothing
Any ideas??
Click to expand...
Click to collapse
I had the same issue, after searching in all the forums I found an odd solution.
Just press the power button for like, 30s or until it restarts.
I was scared because I'm a flashaholic, but everything returned to normal.
Hope it helps.

javi1031 said:
I had the same issue, after searching in all the forums I found an odd solution.
Just press the power button for like, 30s or until it restarts.
I was scared because I'm a flashaholic, but everything returned to normal.
Hope it helps.
Click to expand...
Click to collapse
Hi,
Thanks, yes that did it. I'd held for quite a while prior, but yes a very long hold and voilà!
Cheers,
Sent from my A0001 using Tapatalk