820-3115 Does not boot system

iClub

Member
Good morning, this mac suffered oxidation in the region of memory, where one of the memories died. After the deoxidation the mac turns on but the initialization bar does not finish.
I cleaned the ME Region, used another bios that works, replace oxidized components c3150, c3140, c2940, R0920,1984 Q4262 , Replaces U5511, Q5520,Q5050,Q5510,Q5515 sensors, because the mac does not speed up the cooler when it disconnects flex like trackpad, cam and wifi, reball in SMC but without success.

Voltage: ppbus_g3h12.59V; PP3V42_g3h 3.48V; PLT-RST 3.33V; ALL 3.31V; VCORE 0.78V;
 

iClub

Member
no problems found. the Cooler does not speed up when it connects with disconnected trackpad. At the end of the startup bar it takes time and when complete the access screen does not appear.
 
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