[AT&T HTC One (M7)] ocieb:
I'm also trying to revert to stock in order to return to HTC for purple tint issue. I am running an AT&T HTC One.

Originally, I followed the instructions on this thread and basically converted my phone to GPE (http://xdaforums.com/showthread.php?t=2358781).

To revert to stock I followed these instructions (http://www.htc1guru.com/guides/return-stock-guide/) multiple times and kept failing getting the error 155 message. I was using the RUU.exe file. Eventually I got stuck and decided to follow another post on a different site. That post had me re-lock the bootloader and rever to S-ON. Then all went to hell. Bootloop city.

I was able to load TWRP recovery and I side-loaded a different ROM that I had from when I was first tinkering around with custom ROMs (the one described here http://htconeroot.com/htc-one-stock-roms/android-4-4-kitkat-sense-5-5-stock-rom-for-htc-one/). It booted but threw tons of errors and was unusable. So, I re-unlocked my bootloader (still S-ON) and this time ran the RUU.exe (named RUU_M7_UL_JB_50_Cingular_US_1.26.502.12_Radio_4A.14.3250.13_10.33.1150.01_release_318450_signed_2.exe). Only instead of run through the GUI I tried to use fastboot to load the rom.zip that was extracted to a temp folder. It ran but ended up failing with the error "FAILED (status read failed (Too many links))."

I believe I then reinstalled the rom from (http://htconeroot.com/htc-one-stock-roms/android-4-4-kitkat-sense-5-5-stock-rom-for-htc-one/) and now it it boots and is "working."

Here is where I am at:

TAMPERED

UNLOCKED

S-ON

hboot 1.54

TWRP 2.6.3.3 recovery (note: when I boot into recovery i see a Google logo with an unlocked padlock)

this ROM, rooted: http://downloadandroidrom.com/file/HTCOne/M7/roms/Sense4.4/One_4.06.1540.2_odexed.zip

When I boot the system from power off I get the htc animation with no other warning text

If I boot the system from TWRP recovery I first get the Google logo with an unlocked padlock, followed by the htc animation with no other warning text.

I assume I need to go back to S-OFF, lock the bootloader and run an RUU, but I'm concerned about the error 155, as well as the "too many links" error.

Here is the log from the RUU.exe that fails:

<T135636><DEBUG><CMD>htc_fastboot -s H******* -d flash zip C:\Users\o****\AppData\Local\Temp\{A08E6688-8B3D-493C-BEF3-013152BF8F99}\{50F2F878-636A-496F-A7CB-544C067E0C4B}\rom.zip</CMD>
</DEBUG></T135636>
<T135844><DEBUG><OUT>sending 'zip'... (1029872 KB) OKAY</OUT>
</DEBUG></T135844>
<T135844><DEBUG><OUT>writing 'zip'... (bootloader) adopting the signature contained in this image...</OUT>
</DEBUG></T135844>
<T135844><DEBUG><OUT>(bootloader) signature checking...</OUT>
</DEBUG></T135844>
<T135844><DEBUG><OUT>(bootloader) rom parsing start ...</OUT>
</DEBUG></T135844>
<T135844><DEBUG><OUT>(bootloader) rom parsing finish ...</OUT>
</DEBUG></T135844>
<T135844><DEBUG><OUT>(bootloader) zip header checking...</OUT>
</DEBUG></T135844>
<T135844><DEBUG><OUT>(bootloader) zip info parsing...</OUT>
</DEBUG></T135844>
<T135844><DEBUG><OUT>FAILED (status read failed (Too many links))</OUT>
</DEBUG></T135844>
<T135927><DEBUG><CMD>adb kill-server</CMD>

(bootloader) modelid: PN0712000
(bootloader) cidnum: CWS__001

Any help would be greatly appreciated.