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Hello All, I need help so bad. I have an HP Elitebook 8770w with k4000m. I tried to flash bios of k4000m with the one on this forum and now i have a blank screen and only external monitor works. so pissed. So i ordered a Dell GTX 770m and installed it and it it boots up to windows only on external monitor, but won't accept any drivers. I modified the nvami.inf and then did a new install with modifying the nvbli.inf and still no luck. help please. dropped too much money on this. my laptop Hardware ID is: PCI\VEN_10DE&DEV_11E0&SUBSYS_176C103C I made the following change in the NVAMI.INF orig NVIDIA_DEV.11E0.213E.1043 = "NVIDIA GeForce GTX 770M" mine NVIDIA_DEV.11E0.176C.103C = "NVIDIA GeForce GTX 770M" AND find %NVIDIA_DEV.11E0.213E.1043% = Section104, PCI\VEN_10DE&DEV_11E0&SUBSYS_213E1043 replace %NVIDIA_DEV.11E0.176C.103C% = Section104, PCI\VEN_10DE&DEV_11E0&SUBSYS_176C103C in the NVBLI.INF since there is no laptop with a 770m, i didn't know what to do but to replace an existing entry. added to bottom of first list %NVIDIA_DEV.11E0.176C.103C% = Section32, PCI\VEN_10DE&DEV_11E0&SUBSYS_176C103C added to list of GPUs NVIDIA_DEV.11E0.176C.103C = "NVIDIA GeForce GTX 770M"