[Q] HTC One M7 - Possibly bricked? topic

Hi everybody,

Normally i dont get stuck but this time ive hit a rock, basically Ive got a HTC One which then had the bootloader unlocked and a GE ROM with CWM installed.

What I did was possibly stupid as i S-Offed to clear the tampered/relocked status and before running the stock RUU I relocked the bootloader and S-Oned (this is to later sell the handset as close to stock as possible).

What happens now is the phone will boot into the bootloader/fastboot with a TAMPERED/LOCKED/Security Warning status however any attempt to flash ZIP will backfire in signature verify failed.

Ive tried any number of RUU/img/recovery/ZIPs to get it functioning however the closest I've been is using the rom.zip from "RUU_M7_UL_JB_50_HTC_Europe_1.28.401.7_Radio_4A.13 .3231.27_10.31.1131.05_release_310878_signed.exe" which stalled due to the main-version being above the RUU.

My info:
(bootloader) version: 0.5
(bootloader) version-bootloader: 1.54.0000
(bootloader) version-baseband: 4A.17.3250.14
(bootloader) version-cpld: None
(bootloader) version-microp: None
(bootloader) version-main: 2.24.61.1
(bootloader) version-misc: PVT SHIP S-ON
(bootloader) serialno:
(bootloader) imei:
(bootloader) meid: 00000000000000
(bootloader) product: m7_ul
(bootloader) platform: HBOOT-8064
(bootloader) modelid: PN0710000
(bootloader) cidnum: HTC__001
(bootloader) battery-status: good
(bootloader) battery-voltage: 4272mV
(bootloader) partition-layout: Generic
(bootloader) security: on
(bootloader) build-mode: SHIP
(bootloader) boot-mode: RUU
(bootloader) commitno-bootloader: dirty-d16dc66985
(bootloader) hbootpreupdate: 11
(bootloader) gencheckpt: 0

- to note it was ORANG001 before i changed the CID to HTC__001

From what i can tell as i cant boot into anything i cant get S-OFF or unlock the bootloader again, can anyone think of a way to either downgrade/edit the main-version or make it skip the check?

Thanks in advance