[Q] Bootloop when power button sometimes pressed - Nexus 5 Q&A, Help & Troubleshooting

Hi everyone!
I think my bootloop problem may be a unique one because it only occurs whenever I press the power button (and I've kinda searched other threads and couldn't find a bootloop issue like mine). But before I explain in depth, here are my specs:
Stock 4.4.4 rom
Rooted, with xposed + gb
ElementalX 1.00 kernel
This problem is a randomly occurring one; when my phone is fine and I press the power button, it almost usually goes into a bootloop. It can either stay on the google screen or last all the way up to the x-boot one. Sometimes from the x-boot screen, it'll reboot again. So I realized that if I randomly press the power button a few times (usually trial and error), the problem goes away sometimes and I boot normally again. However, if I hit the power button again for any reason, the bootloop issue relapses.
Also another thing to note is sometimes when my phone is switched on and operating normally and I press the button, it doesn't always reboot immediately. Sometimes it behaves as if the power button is held down and the power menu pops up in the lockscreen... then subsequently it boot loops.
So I'm not sure if this is a hardware issue to do with the button itself (because I very rarely ever drop my phone. Perhaps about 3 times in the past 8-9 months since Dec 2013?) or it's a software issue...which will mean I've to reflash my stock rom.
Anyone with a similar issue please help! It's kinda driving me nuts cos I can't even unlock my phone without triggering a bootloop...:crying:

ultimaflux said:
Hi everyone!
I think my bootloop problem may be a unique one because it only occurs whenever I press the power button (and I've kinda searched other threads and couldn't find a bootloop issue like mine). But before I explain in depth, here are my specs:
Stock 4.4.4 rom
Rooted, with xposed + gb
ElementalX 1.00 kernel
This problem is a randomly occurring one; when my phone is fine and I press the power button, it almost usually goes into a bootloop. It can either stay on the google screen or last all the way up to the x-boot one. Sometimes from the x-boot screen, it'll reboot again. So I realized that if I randomly press the power button a few times (usually trial and error), the problem goes away sometimes and I boot normally again. However, if I hit the power button again for any reason, the bootloop issue relapses.
Also another thing to note is sometimes when my phone is switched on and operating normally and I press the button, it doesn't always reboot immediately. Sometimes it behaves as if the power button is held down and the power menu pops up in the lockscreen... then subsequently it boot loops.
So I'm not sure if this is a hardware issue to do with the button itself (because I very rarely ever drop my phone. Perhaps about 3 times in the past 8-9 months since Dec 2013?) or it's a software issue...which will mean I've to reflash my stock rom.
Anyone with a similar issue please help! It's kinda driving me nuts cos I can't even unlock my phone without triggering a bootloop...:crying:
Click to expand...
Click to collapse
Might want to send it in for repair. Mine had the same symptoms about a month ago--spontaneously displaying the power menu, boot loops where I'd need to do a hardware reboot (or whatever it's called, vol up + power) and sometimes it won't wake the screen when I press the power button and act as if I turned it off. Tried to reflash recovery and change roms, same banana. Then suddenly it won't go out of bootloop, sometimes gets to the x-boot and sometimes only until the Google logo. Sent it for repair and lo and behold, hardware problem. I think this is really inherent on some older Nexus 5's with the wobbly power button.
I suggest you do a nandroid backup while you have the chance. Never had a chance myself

kisetsu17 said:
Might want to send it in for repair. Mine had the same symptoms about a month ago--spontaneously displaying the power menu, boot loops where I'd need to do a hardware reboot (or whatever it's called, vol up + power) and sometimes it won't wake the screen when I press the power button and act as if I turned it off. Tried to reflash recovery and change roms, same banana. Then suddenly it won't go out of bootloop, sometimes gets to the x-boot and sometimes only until the Google logo. Sent it for repair and lo and behold, hardware problem. I think this is really inherent on some older Nexus 5's with the wobbly power button.
I suggest you do a nandroid backup while you have the chance. Never had a chance myself
Click to expand...
Click to collapse
sigh, i reflashed stock rom and the problem persisted. i can't even stay on the bootloader screen without it rebooting itself all over again. i guess it's an old nexus 5 hardware problem like you said :/ thanks for sharing!

ultimaflux said:
sigh, i reflashed stock rom and the problem persisted. i can't even stay on the bootloader screen without it rebooting itself all over again. i guess it's an old nexus 5 hardware problem like you said :/ thanks for sharing!
Click to expand...
Click to collapse
http://forum.xda-developers.com/goo...lease-stop-talking-hardware-versions-t2597276

Sounds like the power button is getting stuck, or shorting out.

Related

[HELP] Unrooted Nexus 5 randomly shut off, now frozen on Google logo at startup

I didn't drop it or get it wet or anything, it was just sitting on my desk and it randomly shut off. I've tried shutting it off and on again but it just comes back to the google screen where it sits frozen for about 30ish+ minutes before it shuts off, I can't turn it off otherwise, if I try turning it off it just turns itself back on so I can't shut it off. Is there anything I can do to save my data (or even better, fix my phone) or am I screwed? I also don't have USB Debugging turned on so I can't get stuff back that way either. My phone is not rooted and running stock android 5.1.? (Don't remember my exact version but I think I've missed the last 2 minor updates)
AWantula said:
I didn't drop it or get it wet or anything, it was just sitting on my desk and it randomly shut off. I've tried shutting it off and on again but it just comes back to the google screen where it sits frozen for about 30ish+ minutes before it shuts off, I can't turn it off otherwise, if I try turning it off it just turns itself back on so I can't shut it off. Is there anything I can do to save my data (or even better, fix my phone) or am I screwed? I also don't have USB Debugging turned on so I can't get stuff back that way either. My phone is not rooted and running stock android 5.1.? (Don't remember my exact version but I think I've missed the last 2 minor updates)
Click to expand...
Click to collapse
Sounds like your power button failed, like mine
markdapimp said:
Sounds like your power button failed, like mine
Click to expand...
Click to collapse
I has an issue with it a few months ago with the power button but it was stuck in a constant bootloop (I later found out that the power button was physically stuck, and a few hard flicks fixed it) , now it's just frozen on the google logo for 30-40ish minutes and then it shuts off by itself. Could that still be an issue with the power button?
AWantula said:
I has an issue with it a few months ago with the power button but it was stuck in a constant bootloop (I later found out that the power button was physically stuck, and a few hard flicks fixed it) , now it's just frozen on the google logo for 30-40ish minutes and then it shuts off by itself. Could that still be an issue with the power button?
Click to expand...
Click to collapse
Yeah, my LG warranty expired so I found a seller on eBay doing it for 25$ (replacing the switch inside)
markdapimp said:
Yeah, my LG warranty expired so I found a seller on eBay doing it for 25$ (replacing the switch inside)
Click to expand...
Click to collapse
I'm kinda confused on how this is the power button. On a working Nexus 5, if you hold the power button down the phone just continually resets, now it freezes on bootup and doesn't shut off for a really long time. Then after it shuts off, you have to manually turn it back on (then it just freezes again). I feel like this is could be a software issue but I might be wrong.
I've seen posts saying to reset the cache partition. Will that wipe the data on my phone?
I went into recovery mode (Does this mean the power button is fine, since I could successfully navigate the boot menu) and tried to format the cache and it says it was wiping /cache for about 20 minutes then it shut off and the notification light started blinking red and the phone wouldn't turn on at all when I held the power button. I assumed this meant the battery died during the cache wipe (Is that what the red light means, if so is that bad?) so I plugged the phone in. After about 30 seconds I could turn it on again, but it just holds at the google screen again. I'm really starting to freak out as I have some unbacked up data. Even if I can't fix the phone, is there any way I could save the data? I have a locked bootloader and USB debugging is turned off (Yes, I'm an idiot).
It does sound like a faulty power button. Since it's very cheap to fix, I would first find a local lab to change the button. At least rule out that..
If you can't fix the phone, you cannot get the data.
Also, be carful with bootloader and adb, so you don"t accidentaly erase your data.
eross said:
It does sound like a faulty power button. Since it's very cheap to fix, I would first find a local lab to change the button. At least rule out that..
If you can't fix the phone, you cannot get the data.
Also, be carful with bootloader and adb, so you don"t accidentaly erase your data.
Click to expand...
Click to collapse
The nearest phone-repair shop is like 45 minutes to an hour away from me so I want to be sure this is it. How exactly would a faulty power button cause this to happen? The phone isn't acting like the power button is permanently held down or not held down at all and I was able to get through the boot menu to the clear cache partition menu which requires use of the power button (And has the shut-off and blinking red light interrupting the cache clear made things worse), all that seems to be happening is the phone freezes during boot-up.
AWantula said:
The nearest phone-repair shop is like 45 minutes to an hour away from me so I want to be sure this is it. How exactly would a faulty power button cause this to happen? The phone isn't acting like the power button is permanently held down or not held down at all and I was able to get through the boot menu to the clear cache partition menu which requires use of the power button (And has the shut-off and blinking red light interrupting the cache clear made things worse), all that seems to be happening is the phone freezes during boot-up.
Click to expand...
Click to collapse
This sentence points all fingers at the power button
"I've tried shutting it off and on again but it just comes back to the google screen where it sits frozen for about 30ish+ minutes before it shuts off, I can't turn it off otherwise, if I try turning it off it just turns itself back on so I can't shut it off"
If you turn it off and it comes back on. it's the power button
Some symptoms of a faulty power button
If your LG Nexus 5 keeps rebooting for no reason to the Google Logo only
you cannot lock the screen
screen locks on its own
phone turns off for no reason during regular use
Lock/power Button is VERY sensitive to touch
AWantula said:
The nearest phone-repair shop is like 45 minutes to an hour away from me so I want to be sure this is it. How exactly would a faulty power button cause this to happen? The phone isn't acting like the power button is permanently held down or not held down at all and I was able to get through the boot menu to the clear cache partition menu which requires use of the power button (And has the shut-off and blinking red light interrupting the cache clear made things worse), all that seems to be happening is the phone freezes during boot-up.
Click to expand...
Click to collapse
The power button is not dead, it's faulty, and behaves erratically. Sometimes it works, sometimes it does not. It's an educated guess. If you put in a lab, and it's not the power button, perhaps they will know what else could be wrong. It's your call.
Just got back from the repair shop, it's not the power button, it's some unknown software issue. They can't fix it. Anyone have any ideas?
This is very odd. I am not aware of any software issue that can prevent a physical shutdown of a phone. Was this a reputable lab?
eross said:
This is very odd. I am not aware of any software issue that can prevent a physical shutdown of a phone. Was this a reputable lab?
Click to expand...
Click to collapse
The phone shut itself off after a period of time, but holding the power button just restarts it. They replaced the power button just to be sure and it didn't fix it.
When you connect the phone to a PC does it show up? Can you copy your data? If not, I don't think you can save the data.
One more thought: If you put the phone in bootloader state, does it still shut down or restart by itself?
I just talked to the phone repair people and they said they just found out it's not software, a circuit in the motherboard got fried and they only way they could fix the phone would be to swap out the motherboard.
That is a 200$ reapair. Before you do that or give up on your phone try my guide here http://forum.xda-developers.com/google-nexus-5/help/nexus-5-stuck-boot-loop-lollipop-t3098632
I had a different problem but was also told by the local LG lab that it was the motherboard. It wasn't,
If my guide does not help, it probably is a hardware issue. See if the lab has an insurance deal. Over here they suggested to sell me a one year insurance for 150$ , and change the motherboard. That would have saved me 50$....

Nexus 5 - Hardbrick ?

Hey guys,
I need some urgent help.
My Nexus 5 device is not booting. It stucks at the bootlogo then powers off and restarts again.
Normally it wouldnt be hard to fix such an issue but the problem is :
I can't boot into bootloader (bootloader appears for 1 second then phone powers off)
I can't boot into Recovery mode (Recoverymode appears for a second then phone powers off)
I can't get my phone into fastboot mode, - it appears for a few seconds durign the bootloop as an "unknown device", but I am not able to flash a new bootloader/factoryimage.
I tried like every possible option what I can do, but nothign worked for me.
What else can I try since I can' get my phone into fastbootmode?
Bootloader is unlocked
Secureboot is enabled
(from what i can see in these 2 seconds where the bootlaoder pop's up)
Is there a way to recover my nexus5?
Symptoms of broken starter button
Posté depuis Nexus 5 / Miui7 by Miui-France
Remove the motherboard and clean around the power button. When you have cleaned around the power button, quickly press and release the power button using more pressure than normal a few times, try to boot again.
Thanks for the tips!
I never thought that a broken Button could cause this issue.
I will check it as soon as I am home.
But how am I supposed to clean the motherboard, and I don't understand how cleaning the button from the outside
of the case should help to solve this problem.
Can you guys explain it a bit more detailed please? ^^
Are there good and very detailed tutorials for this?
And yes, you ideas definitely make sense because some days earlier when the Nexus5 was still
booting fine, I remember that I sometimes had the issue when I turned of the display with the power button
it instantly turned on again and I had to turn it off like 3-5 times until it really was off (standby).
To clean around the power button, you'll have to disassemble the phone which is not hard to do it you take your time and use the right tools.
https://www.ifixit.com/Teardown/Nexus+5+Teardown/19016
I noticed that the issue really was the powerbutton, - however the button was broken and
not repairable by cleaning. To repair the phone I would have to purchase a new motherboard.
In the end I decieded to purchase another phone, just saying that if someone will have the same issue in the future
try to clean first, if that wont help the powerbutton is most likely broken, and this results in a new motherboard-purchase because
the button is not repaireable by hand
The power is replaceable if the damage is confined to the power button itself.

Nexus 5 rebooting continuously and don't start without power source

Hello everyone,
I was flashing MIUI official on my nexus 5, and I was in bootloader, and I was just simply press power button then devices just turned off and
wont start again. after turned off, device dont start using power button, then I connect power source, device just started and rebooting again and again, without power source device dont start, and when it starts on power source, device just rebooting continuously,
Service center said you need to change mother board.
It is necessary to change board or this is just a problem of power button stuck inside
Any sujection?
I suggest removing the motherboard. Then, quickly press and release the power button several times in a row using more pressure than normal. Not too much pressure as you don't want to cause any further damage.
If that doesn't solve the problem, it could be a battery issue.
Nexus 5 drops power
razor17 said:
Hello everyone,
I was flashing MIUI official on my nexus 5, and I was in bootloader, and I was just simply press power button then devices just turned off and
wont start again. after turned off, device dont start using power button, then I connect power source, device just started and rebooting again and again, without power source device dont start, and when it starts on power source, device just rebooting continuously,
Service center said you need to change mother board.
It is necessary to change board or this is just a problem of power button stuck inside
Any sujection?
Click to expand...
Click to collapse
I have not flashed my phone but have kept it up to date. I have version 6.01 build MMB29Q. I have had the issue during the last two weeks with it restarting but then just going off again. I have a separate Nexus 5 I user for parts for these situations. I replaced the motherboard got it up and running, everything seemed fine but then the power would just go off for no reason. The only way I could get it to restart was by holding the volume down for 10 seconds and then selecting the power button. The difference with this motherboard is that it will at least start up. I did change the battery as well and that did not make any difference. At this point I am thinking about flashing with a different OS to see if that fixes it. I unfortunately do not have a fix but I am at least at a point where I know how to keep it functional. Any further fix suggestions would be appreciated. I think my next step will be to flash it with a different OS to see if this issue persists.
dkongmaster said:
I have not flashed my phone but have kept it up to date. I have version 6.01 build MMB29Q. I have had the issue during the last two weeks with it restarting but then just going off again. I have a separate Nexus 5 I user for parts for these situations. I replaced the motherboard got it up and running, everything seemed fine but then the power would just go off for no reason. The only way I could get it to restart was by holding the volume down for 10 seconds and then selecting the power button. The difference with this motherboard is that it will at least start up. I did change the battery as well and that did not make any difference. At this point I am thinking about flashing with a different OS to see if that fixes it. I unfortunately do not have a fix but I am at least at a point where I know how to keep it functional. Any further fix suggestions would be appreciated. I think my next step will be to flash it with a different OS to see if this issue persists.
Click to expand...
Click to collapse
I tried that bro, I searched on google I tried everything, hold power button for 10 seconds, and more pressure and lot of things, I think I have to check power button and battery, I will give my phone in shop not in service center xD
Thank you
audit13 said:
I suggest removing the motherboard. Then, quickly press and release the power button several times in a row using more pressure than normal. Not too much pressure as you don't want to cause any further damage.
If that doesn't solve the problem, it could be a battery issue.
Click to expand...
Click to collapse
I am confused, its battery issue or power button issue, I will try to repair my phone in shop not in service center
Chances are that you have the same problem I had with the power button.
My N5 had this behavior and was about to be replaced when I found something that worked. Try this: press and hold the power button several times with more pressure than usual. If no luck, smack it a few times (no kidding) in a table - I suggest you to do it with a cover. The main problem is with the switch soldered on the motherboard and the above steps is to 'unlock / release' the internal parts of this switch - the main culprit.
Several people had this issue and the spank showed to be useful: LINK
My N5 is working just fine, almost two weeks now. Good luck!

Woke up with my Nexus 5 in boot loop (rooted)

I have Android 4.4.4 (I know) with DirtyUnicorns on it, and as the title says I woke up and it was stuck at the DirtyUnicorns screen and it does the vibration it usually does 2-3 seconds before actually starting except it does it on repeat and never goes anywhere. It's not a power button issue (even though I had that in the past but right now it seems to works fine).
Safe Mode works fine, I haven't updated Android (unless it did while I was sleeping), and I don't know how relevant it can be but I dropped it earlier today breaking the screen.
I actually just restarted the phone right now and it booted fine for like 5 seconds, then it restarted (wtf lol?).
Hopefully you can help me out even though I'm not too much of a tech geek.
For me, it sounds like power button issue.
You can check it quickly, the next time, it starts, try holding the volume down button - if it takes you to recovery. Then you know
Yes, it does indeed take me to safe mode. As I said I don't think it's got to do with the power button, it doesn't randomly reboot or anything.
It wouldn't boot to safemode if it was the power button issue. I suspect either hardware damage, or rom corruption.
daedric said:
It wouldn't boot to safemode if it was the power button issue. I suspect either hardware damage, or rom corruption.
Click to expand...
Click to collapse
Do you think a factory reset is worth trying?

Bricked after a force shutdown, looking for advice

Greetings, I'll try to keep it short. My device is a Zenfone 7 Pro (ZS671KS)
I was using the phone normally and then for some reason it got stuck and I had to perform a "holding the power button" force shutdown to get out of it. The same thing has happened a few times before and it always boots back to normal. This time however, happened after I just downloaded and installed the latest firmware update when the phone was in its "waiting for reboot" state.
It has been bricked ever since and holding the power button will just send it into a boot loop (a brief vibration every once in a while). Whatever I do nothing will show, no logo no LED indicator light or anything like that. All black. Holding volume up or down + power also don't do anything. Vibration is the only response I am getting.
The phone itself was not modified in any way, it was never rooted, didn't have a custom firmware and stuff. Is there anything I can try to save it and all the data inside (data being my priority) before I give up and admit defeat?
Don't think I've see anything quite like it before, so any idea is appreciated.

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