[Sprint HTC One (M7)] MarkBell:
Have a very strange problem with my Sprint HTC One m7. Hoping it is software related only. I appear to be stuck in RUU mode. Whenever the phone boots, I am met by the black screen with silver HTC logo in the center and triangles with exclamation points inside in all four corners. Here is my getvar all:

(bootloader) version: 0.5

(bootloader) version-bootloader: 1.57.0000

(bootloader) version-baseband: 1.01.20.0515

(bootloader) version-cpld: None

(bootloader) version-microp: None

(bootloader) version-main:

(bootloader) version-misc: PVT SHIP S-ON

(bootloader) serialno:

(bootloader) imei:

(bootloader) meid:

(bootloader) product: m7_wls

(bootloader) platform: HBOOT-8064

(bootloader) modelid: PN0720000

(bootloader) cidnum: SPCS_001

(bootloader) battery-status: good

(bootloader) battery-voltage: 3773mV

(bootloader) partition-layout: Generic

(bootloader) security: on

(bootloader) build-mode: SHIP

(bootloader) boot-mode: RUU

(bootloader) commitno-bootloader: dirty-1f512bb6

(bootloader) hbootpreupdate: 11

(bootloader) gencheckpt: 0

After replacing the battery inside the phone, as well as the front housing with digitizer and screen and back housing, I booted up and was met by a boot loop. Prior to installing new hardware mentioned, I had been using CM12 Android L. I booted into bootloader menu and tried to boot up recovery. Got stuck at the screen which tells you the phone is booting into the recovery. No dice. Recovery never loaded. Rebooted into bootloader and fastboot relocked in anticipation of running either of the two most recent RUUs that matched my HBOOT version (1.57).

Both RUUs have failed me. Both of the two most recent RUUs fail with the incorrect image error (though these are the correct images).

I've also tried flashing firmware. I always get the '12 signature verify failed' message. When I go through the recovery process after the RUU fails, the phone always reboots back into RUU mode. I unplugged it to find the following info displayed on my phone itself:

[IMG="HTC One m7 stuck in RUU mode"]https://copy.com/qULKNLvJLPgLUxPm[/IMG] Makes me wonder what [12] CIR stands for.... Google has turned up zip on this.

So, as you can see, I've tried it all basically. Nothing will get the damn thing out of RUU mode. Now I'm wishing to all ends that I would have just s-offed this stupid thing so I could try to roll back to some old firmware or something.

Of course, I have no access to ADB. I can send fastboot commands and can successfully unlock/relock the phone. I have installed the HTC One driver for my device, as well as the HTC Sync application, but the device is still showing up as Android 1.0 in my 'Devices and Printers' folder on Windows 7 (32-bit).

This is pretty much where I am at for the moment. I would love any ideas my fellow XDAers may have. Maybe the Android L release will result in an RUU that will help, though I have little confidence in that considering the 5.05.651.2 firmware and RUU was of no help.

This luckily is no longer my daily driver. I moved on to a Samsung Galaxy Note 4 on a different network. I thought about using my old One as a fancy coaster that lights up when plugged into the wall or a computer, but when I sat my beer on it, it didn't really seem stable because of the curved back housing.

The scariest thing of all about this is that my problem has even stumped [MENTION=2895182]clsA[/MENTION]. It's pretty bad when someone who has literally helped fix 1000s of HTC One m7 Brick Editions can't figure out WTH is going on. :cowboy:

To make this interesting, I promise a respectable donation to whomever offers the piece of advice that gets the device working for me (if it is indeed a software issue). If it's my motherboard, I'm gonna be broke from slapping down 130 bucks or so for a new one (though I really believe it is software related because I was beyond careful when transferring everything to the new housing).

Let the 45th HTC Hunger Games Begin!