Hello everyone, my girlfriend is having an issue where her m8 won't turn on. We looked at it last night and put it on the charger (although we didn't expect it would be dead already) and then left it over night. Woke up this morning and it's still having the same issue. I tried doing both a hard reset and soft reset, just anything to get it out of this weird loop it's in. Everywhere I look for information on hard resetting it says you need to disable fastboot - something a little difficult to do if your phone won't turn on. Are there any other tricks or work arounds that maybe I'm overlooking? I'd prefer to stay away from 3rd party fixes if possible that will void the warranty as I don't want her phone to get rejected if we need to send it out for repair. The closest repair facility is a bit of a distance so I want to see if there is something we can do from home first.
Thanks!
Disabling the "fastboot" option isn't really necessary.
Although I'm not sure what "weird loop" means. If its actually doing a boot loop, and rebooting, then just hold vol down to enter bootloader.
Otherwise, if its just "stuck" on the boot screen, then hold power and vol up to force a reboot (hold for maybe 10 seconds or so); and the moment the screen goes dark, let go of vol down and start holding vol down and don't let go until you see bootloader.
redpoint73 said:
Disabling the "fastboot" option isn't really necessary.
Although I'm not sure what "weird loop" means. If its actually doing a boot loop, and rebooting, then just hold vol down to enter bootloader.
Otherwise, if its just "stuck" on the boot screen, then hold power and vol up to force a reboot (hold for maybe 10 seconds or so); and the moment the screen goes dark, let go of vol down and start holding vol down and don't let go until you see bootloader.
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My apologies, my terminology may be incorrect.
The display is not turning on. Holding power + volume up or power + volume down do not get the screen to turn on.
The instructions I looked at all say disable fastbooting before trying to force boot or hard reset. So that was my confusion.
I really appreciate the help.
JoshOohAh said:
The display is not turning on. Holding power + volume up or power + volume down do not get the screen to turn on.
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Any charging LED when charger connected? Any response from computer if you connect the phone?
Leave the phone on charger (wall charger, not connected to a computer) overnight, and try the button combos again (also, try just holding power down, no other buttons; in addition to the button combos you listed). Try this with the charger connected, as well as without.
Some folks have gotten their seemingly dead M8's to revive with apparently random combinations of button pressing (often holding the buttons for a long time, 1 to 2 minutes) charger plugged in, etc.
JoshOohAh said:
The instructions I looked at all say disable fastbooting before trying to force boot or hard reset. So that was my confusion.
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The only reasons instruction say that, is that the phone either needs to be "real" power off, or a reboot in order for the button combo to go into bootloader (power + vol down) to work. When "fastboot" is selected in Power settings, it actually prevents a real power down (its actually just a sleep state). But if you reboot, it doesn't matter. A reboot is a reboot, it doesn't matter if "fastboot" is enabled. And Power + vol up is one way to force a reboot.
None of this matters, if the phone is not responding (screen not coming on) at all in the first place.
redpoint73 said:
Any charging LED when charger connected? Any response from computer if you connect the phone?
Leave the phone on charger (wall charger, not connected to a computer) overnight, and try the button combos again (also, try just holding power down, no other buttons; in addition to the button combos you listed). Try this with the charger connected, as well as without.
Some folks have gotten their seemingly dead M8's to revive with apparently random combinations of button pressing (often holding the buttons for a long time, 1 to 2 minutes) charger plugged in, etc.
The only reasons instruction say that, is that the phone either needs to be "real" power off, or a reboot in order for the button combo to go into bootloader (power + vol down) to work. When "fastboot" is selected in Power settings, it actually prevents a real power down (its actually just a sleep state). But if you reboot, it doesn't matter. A reboot is a reboot, it doesn't matter if "fastboot" is enabled. And Power + vol up is one way to force a reboot.
None of this matters, if the phone is not responding (screen not coming on) at all in the first place.
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I did leave it on the wall charger last night and was playing with different combinations. I'm going to try plugging it into my computer when I get home. I'm not noticing any LEDs come on however which is what is making me think it's not a screen issue.
redpoint73 said:
None of this matters, if the phone is not responding (screen not coming on) at all in the first place.
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JoshOohAh said:
I did leave it on the wall charger last night and was playing with different combinations. I'm going to try plugging it into my computer when I get home. I'm not noticing any LEDs come on however which is what is making me think it's not a screen issue.
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I recall reading that someone got a similar issue sorted by hold Volume Up or Volume Down + Power button while holding the phone under a bright light(proximity sensor at the front needs to be directly under light).
There was similar threads/methods on the old HTC One(M7) too that apparently worked. Don't know if it's just coincidence or what Might be worth a shot.
Edit: Volume UP OR Volume down, not both at the same time
BerndM14 said:
I recall reading that someone got a similar issue sorted by hold Volume Up or Volume Down + Power button while holding the phone under a bright light(proximity sensor at the front needs to be directly under light).
There was similar threads/methods on the old HTC One(M7) too that apparently worked. Don't know if it's just coincidence or what Might be worth a shot.
Edit: Volume UP OR Volume down, not both at the same time
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Seems goofy - but no luck! Thanks for the input though.
Any other suggestions?
JoshOohAh said:
Seems goofy - but no luck! Thanks for the input though.
Any other suggestions?
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Click to collapse
Have you tried holding Power and Vol Up button when the phone is pluged in?
Tri taking SD Card and SIM card out and start.
Have you tried another charger?
Related
So, I had to replace the screen on my phone because it was cracked. But not after putting it all back together, the phone just boots loops. I am trying to follow the guide about unbricking your phone but I am unsure about getting into download mode. I hold down both volume buttons and plug in the usb into the computer, but noting happens except the phone just keeps boot looping. How do you tell if phone is in download mode? What does the screen look like?
If you get into download mode, you can't miss it. It is pretty obvious. To get your phone into download mode, shut off your phone (Hold power button for 12 second), wait 2-3 sec, press both volume button and then insert usb cable.
Hmm. Seems like my problem is something else. I can't get in into download mode. I cant even get the phone ti turn on if it isn't plugged in.
BumRush said:
Hmm. Seems like my problem is something else. I can't get in into download mode. I cant even get the phone ti turn on if it isn't plugged in.
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Click to collapse
Could your battery be dead? Getting to download screen is a bit tricky as far as the timing is concerned.
USB should be already inserted, otherwise phone will just boot when you plug the cable in.
So usb pluged in, next turn off the phone via power button, now hold both volume buttons + power, should work.
Tim4 said:
USB should be already inserted, otherwise phone will just boot when you plug the cable in.
So usb pluged in, next turn off the phone via power button, now hold both volume buttons + power, should work.
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^this has been my experience as well. Turn phone off. Insert USB. Wait for charging screen to flash on and disappear. Then press and hold vol+ vol- power until Download Mode screen flashes on, then release buttons.
First of all when in download mode you'll see a box displayed saying "download mode" it's hard to miss even you try to.
Here's how I did it. Instead of trying to push both vol + and- , press the middle part of the volume rocker. And press power button at the same time. USB cable can be plugged in advance or can be inserted later on. Only advantage of plugging the USB later is it gives you a proper grip and reassurances you've pressed the button combination correctly. Note that the phone will look for a USB presence before booting to download mode..hope this helps
Sent from my LG-E975 using xda app-developers app
Hey Guys,
I have a strange problem with my Gnex. The power button works fine when the device is on.
But if the device switches off for any reason (low battery or manual shut down), the Power button does not work any more. The usb charger and connectivity is fine when I connect while the device is on, but there is no response when device is off. Its as if the device is dead when it switches off.
It turns on by fluke sometimes and I dread it switching off again. Can anyone point me towards why this may be happening? I am on latest PA, with leankernel stock settings.
Cheers,
Abhishek
sarkar1990 said:
Hey Guys,
I have a strange problem with my Gnex. The power button works fine when the device is on.
But if the device switches off for any reason (low battery or manual shut down), the Power button does not work any more. The usb charger and connectivity is fine when I connect while the device is on, but there is no response when device is off. Its as if the device is dead when it switches off.
It turns on by fluke sometimes and I dread it switching off again. Can anyone point me towards why this may be happening? I am on latest PA, with leankernel stock settings.
Cheers,
Abhishek
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Click to collapse
I have to "long press" the power button (about 2secs) for it to turn on, it won't turn on if I just press it normally. Could this be the case?
Have you tried checking the battery connections (is it sort of loose inside), replacing the battery?
This may escalate to something else: You need to be able to enter fastboot mode by pressing power+volume up+volume down, WHEN the device is OFF.
beekay201 said:
I have to "long press" the power button (about 2secs) for it to turn on, it won't turn on if I just press it normally. Could this be the case?
Have you tried checking the battery connections (is it sort of loose inside), replacing the battery?
This may escalate to something else: You need to be able to enter fastboot mode by pressing power+volume up+volume down, WHEN the device is OFF.
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Click to collapse
Nothing works! I think the mobo might be fried
Its dead, and it stays dead!!
I just rooted and S-off my HTC via rumrunner.
No flash roms install or custom recovery installed.
I wanted to see if I still had CWM from my last root (I returned to stock via http://forum.xda-developers.com/showthread.php?t=2475216&highlight=s-on.
So I went into the bootloader or fastboot (I don't remember) and hit recovery. This did not send me to a CWM, but it appeared to be the stock version of recovery. The process took too long (I know impatient) so I turned it off via power button + volume down.
Now I come to you in need, my phone is constantly turning off/on only displaying the green htc text, no red text, then pausing for 8 seconds, then off again to black screen. The whole process lasts 12 seconds, and this had been going on for about 10-15 min atm.
Plugging it in, my computer does not have the time to recognize it with adb, or fastboot.
I cannot use the power button + volume down to go into bootloader, and pressing the power button does nothing.
Please help me.
So the problem still persists and I assume it's going to keep turning on and off for a while.
I'm just going to wait until the battery dies and see if it can charge and turn it back into bootloader. I'll report back on that.
On a side note in the case that this is bricked, anyone recommend any future phones out there better than the one with verizon? If not I'm probably just going to stick to this phone.
geeibara said:
So the problem still persists and I assume it's going to keep turning on and off for a while.
I'm just going to wait until the battery dies and see if it can charge and turn it back into bootloader. I'll report back on that.
On a side note in the case that this is bricked, anyone recommend any future phones out there better than the one with verizon? If not I'm probably just going to stick to this phone.
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Click to collapse
Hold down the volume down and power button at the same time, until the white hboot menu appears.
This may take a good 15 seconds or more, keep holding them down until the hboot menu appears.
Sounds like you aren't holding down long enough. If that doesn't work, try both volume up and down and power all at once.
Then when the screen goes black, let up on the up volume key, so that you enter fastboot via volume down and power.
Then you should be able to fastboot flash whatever you need to get back up and running again.
I wouldnt just let it keep looping until it dies though.
Probably won't damage anything but I doubt that it's real great for the device.
santod040 said:
Hold down the volume down and power button at the same time, until the white hboot menu appears.
This may take a good 15 seconds or more, keep holding them down until the hboot menu appears.
Sounds like you aren't holding down long enough. If that doesn't work, try both volume up and down and power all at once.
Then when the screen goes black, let up on the up volume key, so that you enter fastboot via volume down and power.
Then you should be able to fastboot flash whatever you need to get back up and running again.
I wouldnt just let it keep looping until it dies though.
Probably won't damage anything but I doubt that it's real great for the device.
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Click to collapse
So here's the update.
Screen is now black, meaning the boot up/down process has stopped.
I have tried these:
A. Hold down the volume down + power button for 20+ seconds.
B. Hold down the volume up + volume down + power button for 20+ seconds and let up on the volume up button when screen goes black.
These two methods results in a single boot up to green HTC text then black screen.
I suspect the device has lost most of its power. Tried it for a third time, the device is now unresponsive and remains at black screen.
Now I plugged the usb cable connected to the power adapter.
The device enters the aforementioned continuous boot loop.
I tried method A and B, and there are no results, the boot loop continues. Now the device returns to the low or no powered state.
Now the device is connected to the computer. The same happens as if it were connected to the power adapter.
Method A and B still do not work.
Results: holding down buttons longer do nothing for me. The device seems to have lost power, but when charged, immediately the device enters the boot loop state.
Note: when doing method A and B the trials were done when screen is on and when screen is off, still no results.
Now the screen is off and not connected to anything. The problem still persists.
ak074 said:
leave the phone charging for at least 10-15 min on the AC adapter. press and hold both vol buttons then press and hold power for 2+ minutes. after 2 minutes, let go of all buttons except volume down. success?
---------- Post added at 10:10 AM ---------- Previous post was at 09:40 AM ----------
actually doing that will destroy the battery. well maybe destroy is too strong of a word but it will damage it for sure. this is a very useful site for anything battery...
http://batteryuniversity.com/learn/article/how_to_prolong_lithium_based_batteries
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I actually tried the 2+ minutes because I saw someone had success with another phone and they said they did it for 3 1/2 min. However it did not work.
Update: Welp, I gave up. I'm going to get my replacement soon and I'll be turning it into Verizon. Really it's not that bad of a loss since I just wiped the phone, only thing is I lost my screen protector and carbon skin
ak074 said:
have you tried to just let the phone bootloop while holding vol down?
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Click to collapse
Yep, nothing happened.
Bootlooped too!
Hello I have a HTC Thunderbolt that is S-ON Unlocked and unrooted with stock recovery that is in a bootloop that does now show on ADB or Fastboot. PLEASE HELP!!!!! I REALLY NEED IT!!
What I basically need: I want to access recovery(or bootloader, I am not sure what its really called) to do a factory reset.
History of the problem: My little sister entered the pattern incorrectly too many times and now the phone is locked asking for gmail and password. Although I know it, but the phones wifi is disabled, so it says "wrong username or password" and hence I can not unlock it. I want to do a factory reset via the recovery but the phone is not going into it even though I press volume down + power(I also tried the volume up). USB debugging is off, and the device is not rooted... please help me, how can I get around this damn problem?
TDm3732 said:
I want to do a factory reset via the recovery but the phone is not going into it even though I press volume down + power(I also tried the volume up).
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Click to collapse
Power+vol down doesn't do anything (will not get you to bootloader) if the phone is on. This only works when the phone is powered off.
If power+vol up didn't go anything, it's probably because you didn't hold the buttons long enough. Hold power+vol up (and don't let go) until the screen goes dark (may take more than a minute in some conditions) meaning it is going to reboot. The moment the screen goes dark, let go of those buttons and only hold vol down. Don't let go, until the white bootloader screen appears. If you fail to get into bootloader (the phone just reboots, tried to go to OS) that means you didn't do the button combo correctly. Either you started pressing vol down too late, or let go too early. Just repeat the sequence until you get it right.
Thank you for replying
I said what you did, unfortunately it doesnt work
TDm3732 said:
Thank you for replying
I said what you did, unfortunately it doesnt work
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What doesn't work? I outlined a few steps. Need more details. The basic reboot sequence (holding power+vol up) does it reboot the phone or not?
This is hard coded into the device. It works in any condition short of a brick. It even works when the phone is powered off. The only time I've seen it fail is if your vol button or power button is broken.
ok, here is how it goes;
I turn the phone off
I press the voldown + power, the phone turns on, I release none of them, everything goes very normally, when the phone is at the lock screen, there is a messege on the display saying "to restart the phone, continue holding the power button for 3 seconds" and it counts down to 2 and then 1, it stops at 1, everything else is normal(except the home and back buttons have been flashing-turning on and off-since the start of the process). now I continue on holding both buttons until the phone autolocks, and here it goes to eternity, nothing happens form here just flashing home and back buttons..
I did the same process for volup+power. I did several times, each taking more than one minute..
and all my buttons are working, I can assure you of that..
TDm3732 said:
I turn the phone off
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How are you doing that?
redpoint73 said:
How are you doing that?
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when the phone is on at the lock screen, I have to swipe up, which takes me to a screen asking me for google username and password, and when I press the power button there, it displays the cummon box with 4 options; turn off, restart, airplane mode, and kid mode.
if I press the power button before swiping up, it displays the messege "To restart, continue holding the power button for 3 seconds" it counts down and stops at 1, just as I described before
TDm3732 said:
when I press the power button there, it displays the cummon box with 4 options; turn off, restart, airplane mode, and kid mode.
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Click to collapse
Try picking restart. Then once the screen goes black, start holding (only) vol down. See if that gets you into bootloader.
redpoint73 said:
Try picking restart. Then once the screen goes black, start holding (only) vol down. See if that gets you into bootloader.
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ohhhhhhhhhhhhhhh maaaaaan I would have kissed you if I could, thank youuuuuu. You are a life savior. It did go to the recovery mode. I really do not know how to repay you. Thank you very much
TDm3732 said:
ohhhhhhhhhhhhhhh maaaaaan I would have kissed you if I could, thank youuuuuu. You are a life savior. It did go to the recovery mode. I really do not know how to repay you.
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Click to collapse
lol. Your gratitude is enough.
Strange, I wonder why it didn't work when forcing a restart with button combo (power+ vol up). I don't think I've seen that issue you described, where the capacitive buttons are flashing.
Essentially, any time the phone reboots, if you hold vol down, it should go into bootloader. Or in the fully powered off condition, hold the vol down, and press and release power button (don't release vol down).
yeah, I read a tone about it and nothing worked. It seems my Htc is special
I was getting a notice on boot that said "Your device is corrupted and cannot be trusted," so I held down the power and volume down buttons to get it to fastboot mode. However, I couldn't get it to be recognized in fastboot on my laptop. At one point I selected "reboot bootloader" and the phone promptly shut off, black screen and completely unresponsive.
From that point on, I can't get it to do anything. I've tried holding power + volume down for 20 seconds and then plugging it in (as noted in another thread) as well as taking it apart and disconnecting the battery to see if that would reset it somehow. No dice.
Any other suggestions before I give up? Thanks very much in advance...
olm3ca said:
I was getting a notice on boot that said "Your device is corrupted and cannot be trusted," so I held down the power and volume down buttons to get it to fastboot mode. However, I couldn't get it to be recognized in fastboot on my laptop. At one point I selected "reboot bootloader" and the phone promptly shut off, black screen and completely unresponsive.
From that point on, I can't get it to do anything. I've tried holding power + volume down for 20 seconds and then plugging it in (as noted in another thread) as well as taking it apart and disconnecting the battery to see if that would reset it somehow. No dice.
Any other suggestions before I give up? Thanks very much in advance...
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Click to collapse
my device is for the most part of the time in qualcomm mode, but I managed to have access to the phone 3 days ago, installing apps & stuff, worked perfectly well until I had
the bad idea to try to charge it through the charger instead of charging it through my computer...
how I've done it?
I used the power reboot technic :
1) pressing the power button for 1 minute
2) doing nothing for some seconds
3) pressing the power button again for 1 minute
4) connecting the phone to the charger, the red light flashed
5) the battery icon appeared soon after
6) waiting for complete charge, phone rebooting
it worked once, so I suppose it can work again. fingers crossed.