[HTC Sensation] suquet.paul:
PLEASE help

Hello; I'm having a similar problem and I ended up in this after hours or googling. My HTC Sensation is in bootloop and I've tried everything I could think of.

This is what Bootloader says (as its the only mode I can get my phone in):

***LOCKED***

PYRAMID PVT SHIP S-ON RH

HBOOT-1.27.0000

eMMC-boot

Jan 13 2012,17:33:34

fastboot USB getvar all displays this:

(bootloader) version: 0.5

(bootloader) version-bootloader: 1.27.0000

(bootloader) version-baseband: N/A

(bootloader) version-cpld None

(bootloader) version-microp: None

(bootloader) version-main: 3.32.531.14

(bootloader) serialno: xxxxxxxxxxxxxxxx

(bootloader) imei: xxxxxxxxxxxxxxxxxxx

(bootloader) product: pyramid

(bootloader) platform: HBOOT-8260

(bootloader) mpdelid: PG5811000

(bootloader) cidnum: HTC__001

(bootloader) battery-status: good

(bootloader) battery-voltage: 4135mV

(bootloader) partition-layout: Generic

(bootloader) security: on

(bootloader) build-mode: SHIP

(bootloader) boot-mode: FASTBOOT

(bootloader) commitno-bootloader: 617f0a98

(bootloader) hbootpreupdate: 11

(bootloader) gnecheckpt: 0

all: Done!

finished. total time: 0.495s

Now, my cidnum showed "11111111" yesterday, and when I first bumped to this post, I tried what you recommended trying: fastboot oem writecid HTC__001 and it worked; but now I cant get it back to 11111111.

A little bit of a backstory; my phone was bought and has been operated by a Mexican Carrier, IUSACELL, for which theres no RUU out there... Anyway here's what happened; this phone was already S-OFF and had ICS. I tried dozens of ROMS, and then I had a hardware failure (wifi). So I had to bring it back to stock to take it into warranty. I used TMOUS 1.27 RUU and fortunately, I had a nandroid backup of the first time I rooted.

When I got the phone back from warranty, the rom it was running was slow and laggy (as it was my carriers...); so I did RUU, using TMOUS 1.27. It worked. And next I wanted to go to TMOUS 3.32. Once it finished flashing; it got stuck on bootloop. I tried flashing back to RUU 1.27 via fastboot usb; to no success (the RUU says theres an error in the ID), I already tried flashing the PG58IMG with the firmware corresponding both the 1.27 RUU and the 3.32 one. In both cases, adding my CIDNUM, which is now HTC__001 instead of supercid 11111111... and here we are.

Now, football HAS the RUU for my carrier, and I already paid him for it, shouldn't take long for him to send me a download link. So, will this IUSACELL RUU work magically for me and bring my phone back to FULL stock?

Hope you (or anyone else) can help me get my phone back to life.

***UPDATES***

2012.10.24 // 07.30pm // Used htcdev.com to unlock the bootloader. Will continue trying to fix this thing and will be posting my progress here.

2012.10.24 // 07.45pm // Tried to "fastboot flash recovery recovery-clockwork-touch-5.8.0.9-pyramid.img". CMD says "OKAY" and "finished", but when I go out of fastboot and in bootloader select recovery, nothing happens. I still get the same bootloop.

2012.10.24 // 08.45pm // Attempt to flash recovery using the One X OneClick. The software says recovery has been successfully flashed, but from bootloader, when I select Recovery; it goes into bootloop again.