Help Desire Z won't recognize any MicroSD cards!

[klu]

Hi all,

Looking for some help with my Desire Z, it suddenly stopped reading any SD cards. I've tried with multiple cards, verified them to be working on other phones.

It's running:

Latest CWM
ROM Manager v4.4.0.7
CoreDroid ROM

Here's the info from the bootloader screen:

VISION PVT ENG S-OFF
HBOOT-0.84.2000 (PC1011000)
MICROP-0425
RADIO-26.02.01.15_M2
eMMC-boot
Sep 8 2010,15:56:38

I've tried using the:

fastboot oem enableqxdm 0
and then
fastboot oem eraseconfig

method to see if that would fix the problem, but fastboot just hangs saying:

< waiting for device >

I also tried going back to stock using the RUU installer but it reboots the phone to the screen with the silver & black HTC logo, hangs for a bit on the 'Waiting for bootloader.....' message then gives this error:

ERROR [171]: USB CONNECTION ERROR

The ROM Update Utility cannot connect to your Android phone. Please check that the USB cable is connected properly between the PC and your Android phone.

As well as this my phone does not show up in My Computer & I am unable to set USB mode to Disk Drive as the phone doesn't think it has a card.

Any ideas on what I can do before I bin it and buy a new phone?

Thanks.