White-screen on boot


hey everyone

have been looking around , seen few people experiencing simular issues. seems got caught in perfect storm.

specs:
macbook pro 15'' 2011
2.0 core i7
4gb ram 256mb vram
500gb hd

reason recovery partisan isn't there. if boot using command + r nothing happens. it’s not selectable if boot holding options either.

ive tried run on safe mode, internet recovery, single user mode , tried boot os mounted on flash drive nothing seems work. i'm out of ideas on how repair or format disk.
cant find disc came mac either doubt that me.

tried boot in verbose mode see mac struggling can’t see working on before screen goes white.

i've tried reset pram/nvram , smc

game over?
 

which os? if original 10.6, there no recovery partition.

hdd sata cable or graphics dgpu problem (a known problem 2011 mbps).
 


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