Changed dpi now the phone won't turn on - One (M8) Q&A, Help & Troubleshooting

I tried to change dpi in my phone and it shut down.
I tried to turn it on but nothing happens.
When I press the power button and volume up it shows the google logo and then nothing.
I can't get to recovery and the phone don't show notification light when I connect it to power or pc.
What do I do?

ofekbeatz said:
I tried to change dpi in my phone and it shut down.
I tried to turn it on but nothing happens.
When I press the power button and volume up it shows the google logo and then nothing.
I can't get to recovery and the phone don't show notification light when I connect it to power or pc.
What do I do?
Click to expand...
Click to collapse
How were you trying to change the DPI?

Tachi91 said:
How were you trying to change the DPI?
Click to expand...
Click to collapse
With this app: DPI Density Changer by Oumugai Enterprises

1:Turn on the phone
2:hold power + volume up
When the screen goes black (reboot) press volume down keep the power button pressed at all times
3:in the bootloader select recovery
4:reflash your rom
5: done

Mr Hofs said:
1:Turn on the phone
2:hold power + volume up
When the screen goes black (reboot) press volume down keep the power button pressed at all times
3:in the bootloader select recovery
4:reflash your rom
5: done
Click to expand...
Click to collapse
I don't know what happened but when I plugged it into power it showed the recovery for a second, then it turned off.
I have waited 15 min and then I tried to power it on into recovery and it worked.
Now I have skydragon and I think everthing is working.
Thanks anyway.

Related

[Help] My phone is hard brick

so reason, i'm delete file build.prop. my phone is hard brick. i press power + volume up it turn on logo htc and off. i press power + volume down. nothing happen and when i charge baterry. no charge. help me
Kent21 said:
so reason, i'm delete file build.prop. my phone is hard brick. i press power + volume up it turn on logo htc and off. i press power + volume down. nothing happen and when i charge baterry. no charge. help me
Click to expand...
Click to collapse
1. Unplug phone - VERY important
2. power on phone, doesn't matter if it is boot looping or whatever
3. hold vol up and power EXACTLY 10 seconds
4. let go of both
5. hold vol down and power till boot loader comes up.
You have no charge because you are running an old ver of twrp, get 2.7.1.0
an0ther said:
1. Unplug phone - VERY important
2. power on phone, doesn't matter if it is boot looping or whatever
3. hold vol up and power EXACTLY 10 seconds
4. let go of both
5. hold vol down and power till boot loader comes up.
You have no charge because you are running an old ver of twrp, get 2.7.1.0
Click to expand...
Click to collapse
hold vol up and power EXACTLY 10 seconds
tks for your help. i'm press 30s. my phone is rescure
Share how I fixed my HTC M8 with the same problem.
Hi,
I just want to share how I fixed my HTC M8 with the same issue. The method is the same but a bit different. I found the solution from googling the below link:
http://forum.xda-developers.com/htc...ter-download-mode-t2853100/page2#post62490577
The essential method is to keep holding down the power button and don't let it go while pressing on the volume up button to reset. At the very moment before the phone resets and shows the HTC logo white screen, switch from pressing the volume up button to the volume down button while holding down the power button. Or you can count 10 seconds and switch before the screen resets.
I hope this helps other people with the same issue.
an0ther said:
1. Unplug phone - VERY important
2. power on phone, doesn't matter if it is boot looping or whatever
3. hold vol up and power EXACTLY 10 seconds
4. let go of both
5. hold vol down and power till boot loader comes up.
You have no charge because you are running an old ver of twrp, get 2.7.1.0
Click to expand...
Click to collapse
Thanks, the pwr + vol-up 10 seconds before the phone hard resets, them pwr + vol-down got me back into hboot and recovery and then out of a build.prop issue.
I have no idea why this is a thing: Getting into the boot loader is usually easy. I can't imagine why when the system doesn't boot normally that the standard procedure to enter hboot changes.
regardless of retarded engineering on qualcom or htc's part, thank you an0ther.

Help: Safe mode

So i acceident flashed a theme (http://forum.xda-developers.com/showthread.php?t=2751173) for ARHD v 9.1 but I was running v8.1
Now my phone automatically boots into safe mode and and the system.ui keeps crashing, I trued getting into my bootloader with no luck, the only thing I can do i reboot the phone but then it just goes back into safe
is there anything I can do?
If it boots and just system.ui is crashing, try to connect via USB and fastboot reboot-bootloader.
Or else try to press power + vol-up for sometime and as soon as it reboots keep pressed vol-down it might need a bit of timing though
This comes in handy if you have a problem being stuck in Safe Mode ....
To activate Safe Mode: press power key until shutdown menu shows, press 'shut down' until another menu opens with Cancel and Restart.
To deactivate Safe Mode: press power key until menu shows, now hold power key - a toast box opens - keep power pressed and now hold Vol+ (toast says 10 seconds and counts last couple) it should reboot as normal.
Click to expand...
Click to collapse
Should make it easier to get out of
Sent from my HTC One_M8 using XDA Free mobile app

Device no longer boots or responds. Please help?

Here's what I did:
Had everything running fine with twrp installed and rooted.
Booted into twrp.
Wiped cache system and dalvik.
Restart.
Device wouldn't boot or go to recovery.
Attempt to follow THIS
Process fails.
Unplug device as instructions say.
Device battery dies.
Device will no longer boot into anything, including download mode.
Help?
cyrushehe said:
Here's what I did:
Had everything running fine with twrp installed and rooted.
Booted into twrp.
Wiped cache system and dalvik.
Restart.
Device wouldn't boot or go to recovery.
Attempt to follow THIS
Process fails.
Unplug device as instructions say.
Device battery dies.
Device will no longer boot into anything, including download mode.
Help?
Click to expand...
Click to collapse
Make sure your device is fully charged and turned off.
Simultaneously press and hold the power and volume down buttons.
When the LG logo shows up, release the power button only.
Now press and hold the power and volume up button while keeping your hold on the volume down button.
When the factory reset screen appears, release your hold on all buttons.
Press the power button to continue.
Press the power button again to confirm if you’re sure you wish to continue with the reset.
meanoc said:
Make sure your device is fully charged and turned off.
Simultaneously press and hold the power and volume down buttons.
When the LG logo shows up, release the power button only.
Now press and hold the power and volume up button while keeping your hold on the volume down button.
When the factory reset screen appears, release your hold on all buttons.
Press the power button to continue.
Press the power button again to confirm if you’re sure you wish to continue with the reset.
Click to expand...
Click to collapse
Hello, same thing happened to me yesterday night. I'm waiting for help... I can't even turn off the tab...
ruimiguel98 said:
Hello, same thing happened to me yesterday night. I'm waiting for help... I can't even turn off the tab...
Click to expand...
Click to collapse
Try holding down the power button for like 30 seconds.

LG G3 D855 international version stuck at miniOS mode trying device test

Friends,
I tried using the #3845#*855# and pressed DEVICE TEST and my LG G3 32GB restarted. It just boots up in miniOS mode and the screen is blank..
I tried rebooting and pressing the POWER AND volume UP button together --- RESULT - NO EFFECT
I tried rebooting and pressing the POWER AND volume DOWN button together --- RESULT - NO EFFECT
Any help is very much appreciated.
Thanks and Regards
Toshiba.bosch said:
Friends,
I tried using the #3845#*855# and pressed DEVICE TEST and my LG G3 32GB restarted. It just boots up in miniOS mode and the screen is blank..
I tried rebooting and pressing the POWER AND volume UP button together --- RESULT - NO EFFECT
I tried rebooting and pressing the POWER AND volume DOWN button together --- RESULT - NO EFFECT
Any help is very much appreciated.
Thanks and Regards
Click to expand...
Click to collapse
see here
THIS TRIC'LL DO IT, BUDDY..... SUGGEST NEXT TIME YOUSTAY CLEAR OF THE HIDDEN MENU THOUGH!!! UNFORTUNATELY YOU'LL LOSE ALL OF YOUR DATA..NO JUMPING THIS.
1. Start your phone up by holding onto both the power button and the buttom volume key. When the logo pops up, let go for a second, and hold onto both buttons again. This should bring up the option to reset your phone. Agree to both prompts.
2. You should be on a new screen. It may warn you not to touch the screen because it is calibrating or testing it. You will have to press OK, and then give it a few seconds to do that bit.
3. The screen should have a list of options at this point (some of which say "+power) on them. If you want to use any of these options, you need to hold the power button, and then press that option on the screen. Press "normal boot (+power)" (don't forget to hold the power button at the same time). This should put your phone back to normal, and set it up again just like it came out of the box.
ENJOY YOUR PHONE BACK

Tried flashing Viper and now can't get to fastboot menu!

I tried flashing ViperOneM8 1.8.0 (ViperOneM8 1.7.1 -> 1.8.0) which I guess was the wrong thing (I think that was an update, should have started with 1.7.1 first). Anyway... Now my M8 boots to some type of android base OS without a lot of things...
1) It's not possible to get to settings as there is no settings app in the app drawer.
2) There is no title bar/task bar at the top. The area that holds the time, and a few icons at the top is gone.
3) There is no background.
4) There is no way to get on the WiFi do to #1 and because of this I can not add my google account. That in turn means no google play store access.
But the BIGGEST thing of all... I CAN NOT BOOT TO FASTBOOT!!!
- Power the device off.
- Hold the volume down button (also tried the volume up button) + press power usually boots strait to fastboot mode.
I THINK it has something to do with the fact that by default in the settings I need to untick the fastboot option in the dev options.. Well I can't get to settings. Now what?
arvo.bowen said:
I tried flashing ViperOneM8 1.8.0 (ViperOneM8 1.7.1 -> 1.8.0) which I guess was the wrong thing (I think that was an update, should have started with 1.7.1 first). Anyway... Now my M8 boots to some type of android base OS without a lot of things...
1) It's not possible to get to settings as there is no settings app in the app drawer.
2) There is no title bar/task bar at the top. The area that holds the time, and a few icons at the top is gone.
3) There is no background.
4) There is no way to get on the WiFi do to #1 and because of this I can not add my google account. That in turn means no google play store access.
But the BIGGEST thing of all... I CAN NOT BOOT TO FASTBOOT!!!
- Power the device off.
- Hold the volume down button (also tried the volume up button) + press power usually boots strait to fastboot mode.
I THINK it has something to do with the fact that by default in the settings I need to untick the fastboot option in the dev options.. Well I can't get to settings. Now what?
Click to expand...
Click to collapse
Shut down phone.
Turn it on
Hold volume up+power button until it restarts
As soon as you get the black screen for restart release power button and hold volume down.
If your timing is right you will enter bootloader.
I tried it and it definitely works
Flash your nandroid or any rom you know was ok to begin with and you are up and running!!!
stathis95194 said:
Shut down phone.
Turn it on
Hold volume up+power button until it restarts
As soon as you get the black screen for restart release power button and hold volume down.
If your timing is right you will enter bootloader.
I tried it and it definitely works
Flash your nandroid or any rom you know was ok to begin with and you are up and running!!!
Click to expand...
Click to collapse
Tried that...
1) Powered off device.
2) Held power button for about 2 seconds until it came on then let go.
3) IMMEDIATELY I pressed and held down the power and volume up buttons.
4) The phone continues to boot up a little bit longer and gets to the verizon check (verizon splash screen) then shortly after goes black (as expected).
5) IMMEDIATELY let go of power button continuing to hold volume up button.
... .. .. .
6) I get the white screen that says HTC (powered by android)... NOT a bootloader screen as expected.
Update... When I try to click on the app drawer then top right click the little three dots, I try and "Manage Apps" ... ERROR "App isn't installed"...
:/
arvo.bowen said:
Update... When I try to click on the app drawer then top right click the little three dots, I try and "Manage Apps" ... ERROR "App isn't installed"...
:/
Click to expand...
Click to collapse
If you connect the phone to the computer, can you get fastboot or adb to recognize the phone?
If so, you can try adb reboot bootloader command or fastboot reboot bootloader comand
arvo.bowen said:
Tried that...
1) Powered off device.
2) Held power button for about 2 seconds until it came on then let go.
3) IMMEDIATELY I pressed and held down the power and volume up buttons.
4) The phone continues to boot up a little bit longer and gets to the verizon check (verizon splash screen) then shortly after goes black (as expected).
5) IMMEDIATELY let go of power button continuing to hold volume up button.
... .. .. .
6) I get the white screen that says HTC (powered by android)... NOT a bootloader screen as expected.
Click to expand...
Click to collapse
After 4 you release power button and press volume DOWN.
This will get you to the bootloader
stathis95194 said:
After 4 you release power button and press volume DOWN.
This will get you to the bootloader
Click to expand...
Click to collapse
Yea, I ended up doing the following...
1) While device is powered on, Press and hold Volume Up + Power until device reboots.
2) When it starts to reboot continue holding the Power button and change to the Volume Down.
That worked for me.

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