Htc Thunderbolt white htc screen then black topic

When i Try To boot my HTC Thunderbolt, it goes into the white HTC screen then goes black forever.This was After i install a custom rom and tryed 3 others all didn't work. No ruus are working just loading and going back into bootloader

Unlocked
Mecha xd ship s-on
Hboot-1.08.0000
Microp-/
radio-2.03.00.0201r
emmc-boot
jun 28 2012

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