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A1419 820-00291-A

Hello, schematic or boardview still unavailable? Maybey you can help me with missing elements. I need to know is it resistor or capacitor and if is it possible - parameters of them. It is near 3.3/5V chip. Thank you
IMG_5147.JPG IMG_5144.JPG
 
A1419 820-00291-A BIOS
first problem, os load 70% then shutting down pc, i try reinstall os. but after partion process starting installation , getting error so, i flash this bios, but still same " os x could not installed on your computer no package were eligible for install " its because of graphic chip problem, give me some advice. please..
 
first problem, os load 70% then shutting down pc, i try reinstall os. but after partion process starting installation , getting error so, i flash this bios, but still same " os x could not installed on your computer no package were eligible for install " its because of graphic chip problem, give me some advice. please..
These problems are rarely caused by the BIOS you need to check hardware ...
 
can advise most issue coming which part or which area? i tried changed hdd, ram also
If all the HDD RAM devices you have changed then the remaining problem is on the motherboard. can it chipse or try one version Mac OS other....
 

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