January 3rd, 2013, 12:17 PM
Join Date: Aug 2010
Location: Dimension Jumping
Device(s): HTC One (S-Off),
HTC Desire (retired)
Carrier: Orange UK
Thanked 5,243 Times in 3,768 Posts
Black screen with 4 triangles is something that happens when an RUU fails.
Have you managed to change the hboot? If not, try this:
* Download this file: alpharev.nl/PB99IMG_stock.zip. Rename it PB99IMG.zip and copy it to your sd card (replacing any other file with that name). Boot the phone to the hboot screen - the one that says:
AlphaRev CM7 r2
BRAVO PVT4 SHIP S-OFF
The phone should ask whether you want to apply the update, then say yes. This is the same as how you tried to apply the RUU update.
If that works, reboot the phone, then try the RUU again.
If it doesn't let you update this way you'll need to use fastboot on a computer to fix this. Let us know if that's the case.