Only black screen with charging icon - One (M8) Q&A, Help & Troubleshooting

Hi.
I unblock bootloader. There were no problems. I used the phone for some time.
However, today I entered the bootloader and pressed in the fastboot power down mode.
The phone does not turn on. You can only see the charging icon after connecting the charger. Without the charger there is a black screen, the diode is on. I do not know what to do. Power + volume up / down does not work.
Ed.
I would try holding the power and volume up button for at least 2-3 minutes. If it does come on, as soon as you feel it vibrate, move your finger down to the volume down button and hold it until you get into download mode. Then boot to the bootloader and then recovery and restore a nandroid.
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This help me.
Thx.

Related

[Q] How do you tell if phone is in download mode?

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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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

[Q] Bootloop help (cannot access fastboot/adb)

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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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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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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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!!

Hard reset fastboot is enabled

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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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?

Xperia S is dead. RED LED ON ONLY

So, i tried to repartition my Xperia S and all went well i installed a rom and gapps, and after i rebooted the phone went off and it doesn't turn on anymore, i tried charging it but after 12 hours of charging the red led is on again, there are no vibrations i can't power it on, can't do a hard reset (holding power button and volume up key) also can't connect to PC, when I connect it via USB the red led goes on again, i tried to connect it in fastboot/flashboot but it's the same thing again the red led goes on like it's charging
PLS HELP. IS THERE ANYTHING I CAN DO TO BRING BACK TO LIFE MY XPERIA S?
Seems like no. You may try to manually remove battery and let it a bit rest for 15-20 min but I'm not sure if it helps. Have you held your power+volume up\down buttons long enough?
Soft brick tips - and check this
Damage Melody said:
Seems like no. You may try to manually remove battery and let it a bit rest for 15-20 min but I'm not sure if it helps. Have you held your power+volume up\down buttons long enough?
Soft brick tips - and check this
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UPDATE: when the phone is connected to the PC via USB, after holding power button + volume up + volume down button the sony logo comes on, and the led goes off .. but this last for about 20 sec and the screen goes off again. I tried to go into recovery when the sony logo comes on but no luck there
GjorgiDxc said:
UPDATE: when the phone is connected to the PC via USB, after holding power button + volume up + volume down button the sony logo comes on, and the led goes off .. but this last for about 20 sec and the screen goes off again. I tried to go into recovery when the sony logo comes on but no luck there
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Use the rubber band technique to flash the stock ROM on Your phone.
I fixed my phone finally!!!! The thing I did is i charged it 24+ hours, and than i pressed the power + volume up/down keys together, and the phone powered on and I was able to enter flashmode and flash the stock ftf and repair my phone ))))

HTC One M8 stuck in boot loop, won't power off

Hey, so I was messing around with my phone and using TWRP, I deleted the original ROM and then, having forgotten that I'd deleted the ROM, tried to reboot the phone. My phone is now stuck on the HTC splash screen (which at the bottom has the text "This build is for development purposes only...") and won't turn off, despite me holding the power button for probably 1+ minutes. I'm planning to wait until the battery dies, then once I can boot again try to get into TWRP by holding the power button and volume down. Does anyone know if there's a way I can get to TWRP without having to wait until the battery dies (my phone is at full charge), or whether this will not work and I should try something else?
Thanks in advance!
Press and hold power & volume up buttons until the screen turn black then release both buttons and quickly press & hold volume down button only. This will get you to hboot
ckpv5 said:
Press and hold power & volume up buttons until the screen turn black then release both buttons and quickly press & hold volume down button only. This will get you to hboot
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Thanks this worked!

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