i tried a bios mod for my hp dv7 in order to disable hybrid graphics.
Flash was ok and full menu was available. i rebooted the notebook several time and booted into windows too. No problem.
Then i went to setup and just replaced the hybrid graphics options with dedicated cpu then black screen.
I tried hundred of things read on this forum but no luck (remove cmos battery, usb flash recovery)
Please help me
Attached are my bios setup before flash... photo 1.JPG
(Size: 436.83 KB / Downloads: 12) photo 2.JPG
(Size: 314.77 KB / Downloads: 9) photo 3.JPG
(Size: 345.24 KB / Downloads: 8)