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I have several Macbooks with preinstalled SSD with High Sierra. But they are 2013-2014 models and on them never have been installed High Sierra. So I need to update EFI so they will be able to run these SSDs.
Now what I do is install High Sierra from USB drive and after that they are able to run...
This board wont power. No liquide damage. Boards look good and SMC zone perfect.
ppbus 12.56V
scl and sda - 3.3V
smc_adapter_en 3.3V
3V_S5 - 3V
5V_S3 - 0V
RTC 32Khz present
Next on check?
Already checked carreuly the board and cannot find any corrosion. No history
Is there any way to create DMG file for Higt Sierra formated with APFS? I alwasys use DMG for Sierra and Capitan, but cannot create DMG for Higt Sierra apfs.
Very stranged case. This macbook pro comes to me because sometimes when power on the macbook it goes to boot menu and in OS X appears simbols that normaly appears when press ALT+some key.
Keyboard was durty and I thought it is keyboard issue and I repalced the keyboard. Tested and work ok, but...
This macbook has faulty battery and I replaced with "new" chines battery. Sometimes it stays at 15% and later goes to 100%. It is bad battery or could be some mosfet also?
I want to save data from working ssd belongs to macbook air 2012. Macbook air is trash but I have another one 2012 and I took ssd from broken one and put it to the working one. Blonking folder
So I started the working one with usb drive and now I can access to the ssd with the data but in the...
I took a broken card from 2011. I replaced the GPU and want to test. Don't have Imac 2011 27 and I tested to 2010 27 but it takes 30 seconds
. First black screen and then after 30 seg it appear the desktop. Later work ok. Is that normal?
820-3115 ppbus - 12.28V
SMBUS one line at 3,4V and other line at 1.04V
Pullup resistors are ok. I interchanged them
I already replaced SMC 2 times
ISL 6259 1 time
Have no more idea where is the problem...