HTC One M8 Won't turn on

Jun 11, 2018
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I own a HTC one m8 chinese version. I tried to root the phone. I unlocked bootloader, installed TWRP, and Installed supersu.zip from TWRP. the phone turned on.But the superSU was not working because of binary update issue. I google the reason, found out that I have to install newer supersu.So I did. but the phone never truned on again. it shows the chinese logo,but after that goes into a black screen and stays there
I can Reset the phone, the same thing happens. I can go to boolloader and Factory reset, but the result is the same.
Please help me.
 
You can't factory reset a rooted device. You have to unroot it first. I know of two apps that should be able to help with unrooting a device. Others may know of more or other ways, as I am really not a fan of rooting, so not my expertise. :) The two apps, which should be able to be found at the Google Play Store are "SuperSU" and "ES File Explorer". I think "SuperSU" is free but I don't know about "ES File Explorer".


How to unroot Android: Using SuperSU

1. Download, from the Google Play Store, and install "SuperSU".
2. Launch the app and go to “Settings”.
3. Scroll down and locate, and tap, “Full unroot”.
4. It will ask you to confirm that you really want to unroot your device. To start, tap continue.
5. When it is done, the app will automatically close and then restart your device.
6. When it is done, and the device restarts, it should be fully unrooted.
7. Uninstall "SuperSU" and you are done.


How to unroot Android: Using ES File Explorer

1. Download, from the Google Play Store, and install "ES File Explorer".
2. Launch the app and tap "Menu".
3. Scroll to locate “Tools”. Tap that and then turn on “Root Explorer”.
4. Now you will have to grant it "root privileges", if prompted.
5. Go back to your home screen and then navigate to your device’s root folder. It should found as “/” in explorer.
6. From root, navigate to “system” and then “bin”.
7. Find, and delete, the “busybox” and “su”. If you can’t find them, move on to step eight.
8. Navigate back to “/” and open the “app” folder.
9. Delete superuser.apk.
10. Restart your Android device. Your device should reboot unrooted.
 
Jun 11, 2018
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Thanks for the answer , but my phone is not starting up, its stuck in the black screen.
 
Jun 11, 2018
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Thanks , I will do that, should I remove it from here then?
 

rgd1101

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MERGED QUESTION
Question from arash13131313 : "HTC One M8 Won't turn on"



 
Jun 28, 2018
2
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Have you tried to reset the charging logic of the device, first you must charge your M8 for a minimum of 10 minutes using a wall charger. With the power off, press down and hold the volume up and down button with the power button for approximately 2 minutes. After 2 minutes, release all of the buttons