Macbook pro 13 A1502 retina issue bios or something else

[Ciki]

Hi it was bios corrupted and after replace MacBook works but showing only 4gb memory instead 8gb and in settings don't recognize mouse or trackpad even if they working

 

[dukefawks]

Used the wrong BIOS from 3536 board...Also you will need clean ME region. Upload original dump.

 

[Ciki]

Don't have bios reader for mac ,i order that from eBay ,A1502 mid 2014 ,EMC 2875,serial c02n246jg3qj

 

[dukefawks]

You cannot order chips from Ebay as they will probably have a used ME region. Go buy a TL866 first.