macbook pro 2011 problems

[shiroyuki03]

hi. i hv a mbp with this prob. when os loading, goes up to desktop and it gives a grey screen there. so i tot gave it a few mins. but after 30 mins i still see the same thing.

then i tot of reformatting via a diff hdd. so i installed mountain lion onto usb. and boot via usb to install on mbp. loading for few secs then it turns blue screen. tried diff thumbdrive also does not work.

also done Apple Hardware Test shows everything okay. though i know its the basic diagnostic. then went to take out the hdd and repair via external drive and onto another macbook. still fail.

wad seems to be the prob?

 

[PetPet]

Reset PRAM and try again.

About NVRAM and PRAM

 

[shiroyuki03]

alrite. will give that a try thanks! hope it works.

 

[B772ER]

hi. i hv a mbp with this prob. when os loading, goes up to desktop and it gives a grey screen there. so i tot gave it a few mins. but after 30 mins i still see the same thing.

then i tot of reformatting via a diff hdd. so i installed mountain lion onto usb. and boot via usb to install on mbp. loading for few secs then it turns blue screen. tried diff thumbdrive also does not work.

also done Apple Hardware Test shows everything okay. though i know its the basic diagnostic. then went to take out the hdd and repair via external drive and onto another macbook. still fail.

wad seems to be the prob?

Probably a graphics or display issue. Is yours a 15" or 13" MBP?

 

[shiroyuki03]

Probably a graphics or display issue. Is yours a 15" or 13" MBP?

its the 15" model. but when i did the aht. seems to be fine (;

 

[shiroyuki03]

Reset PRAM and try again.

About NVRAM and PRAM

hi tried the steps provided. still fail. i get the blue screen when loading the os mountain lion from usb. the only thing i haven try is installing via dvd...

any other methods? or wad seems to be the issue?

 

[mac_mac]

Most likely logic board issue.... As if u able to boot from USB, then it's harddisk issue....

 

[B772ER]

hi tried the steps provided. still fail. i get the blue screen when loading the os mountain lion from usb. the only thing i haven try is installing via dvd...

any other methods? or wad seems to be the issue?

Your logic board needs replacing, GPU is probably failing / failed.

 

[shiroyuki03]

Most likely logic board issue.... As if u able to boot from USB, then it's harddisk issue....

so far unable to boot from usb. always give that blue screen. nv once get thru.

 

[shiroyuki03]

Your logic board needs replacing, GPU is probably failing / failed.

that does nt sound good. ): thanks for your help