[SOLVED] HELP! HTC ONE M8 - Bricked?

[Ratzz2]

Hi All,

I've been a member here for a long time, but now with a new account.

I have a real problem, and I do not know what to do.

Firstly, I am pretty computer literate, but I am lost with phone technology a little. I have a bit of experience flashing ROMS, but I really do not know where to begin.

I bought a HTC ONE M8 for my daughter from eBay (I know... ) and today it seems to have tried an update. This has resulted in bricking my phone. The M8 was (I thought) new, but whatever has happened has screwed things up.

Can someone help me recover from this update failure? I can provide all information from the BOOT screens for you, but as yet, I don't even know what to supply.

Thanks chaps - I know this is the only place that will be able to help as you are all expert.

Simon

Edit: I have installed Android Studio as I have read that this is what I need initially.

Edit: Bootloader Information
*** Software status: Official ***
*** Locked ***
M8_UL PVT SHIP S-OFF
OS-6.12.401.4

So, here are my thoughts. I think that this is a Chinese HTC and it has tried up update to a Europe Marshmellow ROM. Can anyone confirm this might be causing the problem?

Can I "roll-back"?

 

[ckpv5]

Edit: Bootloader Information
*** Software status: Official ***
*** Locked ***
M8_UL PVT SHIP S-OFF
OS-6.12.401.4

So, here are my thoughts. I think that this is a Chinese HTC and it has tried up update to a Europe Marshmellow ROM. Can anyone confirm this might be causing the problem?

Can I "roll-back"?

M8_UL is not a Chinese HTC. I guess your problem is root or previously a rooted device and that is the reason the update failed.

To get to know better about your device, post here fastboot getvar all result minus serial & imei no.
Then we'll see what you need to do ... either roll-back or moving forward with a new Marshmallow stock ROM

 

[Ratzz2]

Hi, thanks for replying.

I see, I didn't know that M8_UL is not a Chinese HTC - shows how much I know about this kind of stuff!

I will look up how to post the fastboot getvar all information, but if I don't get back to this first, I am assuming (from what I have already read) that I can do this via a CMD window? I am not 100% what I need to download to access my HTC, but will look into it now.

Many thanks again - you have given me a glimmer of hope!

 

[ckpv5]

Assuming you have a Windows PC ...

What you need is fastboot/adb, install this : http://forum.xda-developers.com/showthread.php?t=2588979
-when install the adb installer, select Y for system-wide and N for drivers
-you can open Command Prompt from any where that you like when it is system-wide.

HTC USB drivers - Install HTC Sync Manager - http://www.htc.com/us/support/software/htc-sync-manager.aspx
- it will install the needed drivers then uninstall the HTC Sync Manager but leave the drivers.

Open a command prompt then type fastboot getvar all
copy the output but delete serial & imei no.

 

[Ratzz2]

Here we go ...

(bootloader) version: 0.5
(bootloader) version-bootloader: 3.19.0.0000
(bootloader) version-baseband: 1.29.214500021.12G
(bootloader) version-cpld: None
(bootloader) version-microp: None
(bootloader) version-main: 6.12.401.4
(bootloader) version-misc: PVT SHIP S-OFF
(bootloader) serialno:
(bootloader) imei:
(bootloader) imei2: Not Support
(bootloader) meid: 00000000000000
(bootloader) product: m8_ul
(bootloader) platform: hTCBmsm8974
(bootloader) modelid: 0P6B10000
(bootloader) cidnum: 11111111
(bootloader) battery-status: good
(bootloader) battery-voltage: 0mV
(bootloader) partition-layout: Generic
(bootloader) security: off
(bootloader) build-mode: SHIP
(bootloader) boot-mode: FASTBOOT
(bootloader) commitno-bootloader: 76df2b54
(bootloader) hbootpreupdate: 11
(bootloader) gencheckpt: 0
all: Done!
finished. total time: 0.102s

 

[ckpv5]

First - you need this : http://forum.xda-developers.com/showpost.php?p=64926362&postcount=4

If the bootloader is UNLOCKED (for S-On device only), relock it with commands:

fastboot oem lock
fastboot reboot-bootloader

Since the bootloader is LOCKED, what you can do :

1. Download the RUU zip here : https://www.androidfilehost.com/?fid=24369303960687057

2. Download htc_fastboot.exe here : https://drive.google.com/file/d/0B8L4pkbzdlR3eTlJSjdKVEdHX1U/view

Make a folder say "RUU" on your desktop and put both RUU zip and htc_fastboot.exe in this RUU folder

Then follow these :

Rename the RUU zip to RUU.zip (make sure you don't hide the windows extension so you won't make mistake and rename it to RUU.zip.zip)
put your device on bootloader/fastboot mode (as you get the getvar) and connect to PC
Open a command prompt from RUU folder then run below commands:

fastboot reboot-bootloader (reboot to bootloader to ensure the connection is good)
fastboot oem rebootRUU (put the device in RUU mode)
htc_fastboot flash zip RUU.zip (to install RUU)

Once complete - fastboot reboot

It should boot, then you run setup .. done.
(Only thing is you will lose all data in internal storage as RUU will give you out of the box state - at least better than a non-working phone)

NOTE : other methods to install RUU zip - http://forum.xda-developers.com/showpost.php?p=67314040&postcount=1749

 

[Ratzz2]

Thank-you my friend, am downloading now.

Not worried about the data loss - I'd pretty much written the phone off anyway, so loss of data is a very small price to pay.

Will update you once all done.

 

[ckpv5]

If possible use PC with USB2.0
I'm on mobile for 6 hours.

If the above fails, I'll give you another method later.
I don't see a reason it would fail.

 

[Ratzz2]

Thank you buddy - you are indeed, a GOD! :good::good::good::good::good::good:

It has re-booted and is just updating the apps. I will make sure I turn off the 'auto update' option so this won't happen again.

Just out of interest, if I wanted ever to upgrade the OS are there any good resources I could read?

I really appreciate your time in this - I know it's not easy to see a bit of a newbie type "Bricked" in the title!

Thanks again...
Simon

 

[ckpv5]

Great :good:

If you don't plan to root the device, there is no need to turn off auto update. It will success for future update when there is one.

Don't think there will be another OS update for M8, this Marshmallow is the last major OS update. If there is any further update, it will be some patches/small update.

 

[Ratzz2]

Thanks again, you have been a massive help ...

 

[PavM3]

Hi, I am new to this forum and have the same problem. Everything has been working until the step 'htc_fastboot flash zip RUU.zip (to install RUU)'. It tells me that 'htc_fastboot is not recognized as an internal or external command, operable program or batch file. Any assistance on this? I am not stuck with a black screen just written htc But thanks for your help so far...I have a little hope this will be sorted

 

[redpoint73]

Hi, I am new to this forum and have the same problem. Everything has been working until the step 'htc_fastboot flash zip RUU.zip (to install RUU)'. It tells me that 'htc_fastboot is not recognized as an internal or external command, operable program or batch file. Any assistance on this? I am not stuck with a black screen just written htc But thanks for your help so far...I have a little hope this will be sorted

You probably failed to perform one of these steps:

2. Download htc_fastboot.exe here : https://drive.google.com/file/d/0B8L4pkbzdlR3eTlJSjdKVEdHX1U/view

Make a folder say "RUU" on your desktop and put both RUU zip and htc_fastboot.exe in this RUU folder

Open a command prompt from RUU folder then run below commands:

Note that the part I've highlighted in red is really important. If your command prompt is not opened in the right folder (where htc_fastboot.exe is located) it won't work; even if you did all the other steps correctly.

A shortcut to open CMD prompt in the correct directory, is to open the RUU folder, then with your cursor inside the RUU folder window: Shift-right mouse button click, then select "Open command window here".

 

[PavM3]

I did open the command prompt from within the RUU folder (which I saved on the desktop) so the path is c:\user\user\desktop\RUU hence the command looked like this c:\user\user\desktop\RUU\htc_fastboot flash zip RUU.zip and that is what gave me the error.

I had typed the first two commands ' Fastboot reboot-bootloader' and 'fastboot oem rebootRUU' not from within the RUU folder but from c:\program files\Minimal ADB and Fastboot>. These commands worked, but not now when I try the two from within RUU where I keep getting an error.

What I see is lack of interaction between Minimal ADB and Fastboot (Which I saved under C:\program files) and RUU saved on the desktop. Should I have saved them in the same folder? I have tried moving RUU to the same path as Minimal ADB and Fastboot but that doesn't work either.

Yes, I had I downloaded the files from the links provided and opened that command prompt from within RUU (holding down shift button and right clicking to get 'open command window here'. I have never done this sort of thing before so pardon my lack of knowledge on the basics....I am just determined to have my HTC m8 working again since there is no care centre in Kenya, where I come from. Thanks for the prompt response - wish I noticed it earlier.

You probably failed to perform one of these steps:



Note that the part I've highlighted in red is really important. If your command prompt is not opened in the right folder (where htc_fastboot.exe is located) it won't work; even if you did all the other steps correctly.

A shortcut to open CMD prompt in the correct directory, is to open the RUU folder, then with your cursor inside the RUU folder window: Shift-right mouse button click, then select "Open command window here".

 

[redpoint73]

I did open the command prompt from within the RUU folder (which I saved on the desktop) so the path is c:\user\user\desktop\RUU hence the command looked like this c:\user\user\desktop\RUU\htc_fastboot flash zip RUU.zip and that is what gave me the error.

I had typed the first two commands ' Fastboot reboot-bootloader' and 'fastboot oem rebootRUU' not from within the RUU folder but from c:\program files\Minimal ADB and Fastboot>. These commands worked, but not now when I try the two from within RUU where I keep getting an error.

What I see is lack of interaction between Minimal ADB and Fastboot (Which I saved under C:\program files) and RUU saved on the desktop. Should I have saved them in the same folder? I have tried moving RUU to the same path as Minimal ADB and Fastboot but that doesn't work either.

Can you confirm the RUU folder contains a file htc_fastboot.exe? You didn't rename this at all, did you?

Try to copy the RUU.zip and htc_fastboot.exe in the Minimal ADB and Fastboot folder, and see if that helps.

 

[PavM3]

Yes. The RUU folder contains the file htc_fastboot.exe as well as RUU.zip (which was renamed to this from the initial long name it had when I downloaded). I had already tried copying both RUU.zip and htc_fastboot.exe in the Minimal ADB and Fastboot folder and have just retried and I get the error message 'preprocess_file: Cannot read header len bytes. Also I had tried and just retried copying the RUU folder (as opposed to the two separately)in the Minimal ADB and Fastboot folder and now it says 'Fastload is not recognized as an internal or external command, operable program or batch file.'

Can you confirm the RUU folder contains a file htc_fastboot.exe? You didn't rename this at all, did you?

Try to copy the RUU.zip and htc_fastboot.exe in the Minimal ADB and Fastboot folder, and see if that helps.

 

[redpoint73]

Can you do a screen capture of the RUU folder contents?

And also of the CMD window, when you try the command to flash the RUU zip (from RUU folder - let's concentrate there).

 

[PandaDNB]

Is this solution applicable to this problem ? -> http://forum.xda-developers.com/htc-one-m8/help/htc-m8-boots-recovery-mode-t3303826

 

[redpoint73]

Is this solution applicable to this problem ? -> http://forum.xda-developers.com/htc-one-m8/help/htc-m8-boots-recovery-mode-t3303826

If the RUU matches your phone's CID, yes.

 

[PandaDNB]

Well i can currently see on the phone screen CID-11111111 and the 1.6 gig file(which is the RUU ?) is still downloading.

When i ran the fastboot 1.3.1 i got the same output as the OP.
(bootloader) version: 0.5
(bootloader) version-bootloader: 3.19.0.0000
(bootloader) version-baseband: 1.29.214500021.12G
(bootloader) version-cpld: None
(bootloader) version-microp: None
(bootloader) version-main: 6.12.401.4
(bootloader) version-misc: PVT SHIP S-OFF
(bootloader) serialno:
(bootloader) imei:
(bootloader) imei2: Not Support
(bootloader) meid: 00000000000000
(bootloader) product: m8_ul
(bootloader) platform: hTCBmsm8974
(bootloader) modelid: 0P6B10000
(bootloader) cidnum: 11111111
(bootloader) battery-status: good
(bootloader) battery-voltage: 0mV
(bootloader) partition-layout: Generic
(bootloader) security: off
(bootloader) build-mode: SHIP
(bootloader) boot-mode: FASTBOOT
(bootloader) commitno-bootloader: 76df2b54
(bootloader) hbootpreupdate: 11
(bootloader) gencheckpt: 0