[HTC U11  Questions & Answers] mauiblue:
Aloha to all. I posted on a couple threads on the HTC U11 forum that I didn't start to get some help reviving my phone. In the last ditch effort before sending off my HTC U11 to the mother ship to have it revived I figure start my own "please help me" thread and maybe and hopefully fine the solution to my bricked phone.

In ADB I ran the oem unlock string which caused all these issues. I can't get my HTC U11 (unlocked version) phone to boot besides to the encryption page and I can't get it to boot all the way to the home page. If I try to boot into recovery I get the message "Your device is corrupt. It cant be trusted and will not boot". If I try to boot normally i get the message "Your device has loaded a different operating system" then boots to the encryption lock page. I found the stock file on this list (https://docs.google.com/spreadsheets/d/15JL3tRWDSVOUKo_revEYtQ_tRcOSJ0vWcvk8a7TK8Hk/edit#gid=0) and tried the SD card way of running the files to no avail. It seems using ADB and fast boot is the only way I can actually get any reaction from my phone.

So I downloaded one of the one of the latest versions (version 2.42.617.7 from the zip variant link) and renamed it "firmware.zip" I am using ADB to do the process (https://xdaforums.com/u11/how-to/collection-htcu-u11-ruu-firmware-t3612048) and I get this error:

C:\adb>fastboot flash zip firmware.zip

target reported max download size of 2399200000 bytes

error: cannot load 'firmware.zip'​

I renamed it a couple other times and I still get that error above. My phone (U11) is in the download mode. Just for giggles when I type in on the command prompt "fastboot oem rebootRUU" I get to a screen that has HTC on it and says and the warning "Security Warning. If you flash this phone with any ROM that was not officially released by HTC you take the risk of releasing...." When I give the command to flash the zip file I get the same error as above.

I went to the TWRP website and downloaded the lastest OCN .img files and used ADB to recover from there. Here is what I get:

c:\adb>fastboot flash recovery recovery.img

target reported max download size of 2399200000 bytes

sending 'recovery' (39476 KB)...

OKAY [ 2.141s]

writing 'recovery'...

(bootloader) HOSD CL#1011554

FAILED (remote: 9 RU_SECURITY_FAIL recovery and bootloader isn't BL_UNLOCKE)

finished. total time: 3.250s

c:\adb>fastboot flash recovery 2PZCIMG.zip

target reported max download size of 2399200000 bytes

error: cannot load '2PZCIMG.zip'

c:\adb>fastboot flash recovery 2PZCIMG_OCEAN_WHL_O80_SENSE90GP_MR_NA_Gen_Unlock_2.42.617.7.zip

target reported max download size of 2399200000 bytes

error: cannot load '2PZCIMG_OCEAN_WHL_O80_SENSE90GP_MR_NA_Gen_Unlock_2.42.617.7.zip'

c:\adb>fastboot flash recovery twrp.img

target reported max download size of 2399200000 bytes

sending 'recovery' (39676 KB)...

OKAY [ 2.119s]

writing 'recovery'...

(bootloader) HOSD CL#1011554

FAILED (remote: 9 RU_SECURITY_FAIL recovery and bootloader isn't BL_UNLOCKE)

finished. total time: 3.213s​

It seems like because the phone was "relocked" this is causing issue for me to use ADB and a recovery img or zip file to get my phone back to a happy place.

I am hopeful that I can get this phone back to normal running status. I just need to get the right commands and files to do this.

I appreciate any and all help to get my phone back to normal again. Aloha. If I can't get this resolved this weekend I'll be sending the phone back to HTC and I have a feeling they will make me pay dearly for my ignorant endeavor.

Thanks for taking the time in reading this. Aloha.