MacBook Air 13" Retina 2018 820-01521-02

Star Rating

5.00 star(s)

MacBook Air 13" Retina 2018 820-01521-02
BIOS
Schematics boardview
820-01521 PJJ MLB Pre-EVT2.brd
820-01521 j140_mlb_bttf_051-04039_2.0.0
X1032 MLB BTTF
MacBook Air (Retina, 13 820-01521 photo

 

[Papaj2004]

MB: 820-01521-A
u4770 bin
Hello. You can check this bin file. Only the backlight starts without image and restart. Thank you.

 

[ThienBui]

MB: 820-01521-A
u4770 bin
Hello. You can check this bin file. Only the backlight starts without image and restart. Thank you.

it's not BIOS this model uses Apple T2

 

[rymk84]

it's not BIOS this model uses Apple T2

MAC A1932 does not enter 20 volts. I need the bios of the USBC CD315 chip. Corrupted bios attached.

 

[ThienBui]

MAC A1932 does not enter 20 volts. I need the bios of the USBC CD315 chip. Corrupted bios attached.

I no have bios for chip this

 

[imranromi]

MAC A1932 does not enter 20 volts. I need the bios of the USBC CD315 chip. Corrupted bios attached.

Do dfu mode and restore if T2 firmware corrupt will all ok.

 

[Straight]

Do you have a solution for this in apple a1932

 

[ay_bulut]

A1932 ( 2019 )
820-01521-A
U4770

There was an MDM problem and while trying to change the serial number, it gave an error while taking the bios backup. can you check.

 

[ThienBui]

A1932 ( 2019 )
820-01521-A
U4770

There was an MDM problem and while trying to change the serial number, it gave an error while taking the bios backup. can you check.

now it error what ? Please send one photo I check

 

[ay_bulut]

Ç

now it error what ? Please send one photo I check

It works very slowly. fan works fast.

 

[ThienBui]

Ç

It works very slowly. fan works fast.

no problem bios

 

[ay_bulut]

no problem bios

There was no problem before changing the serial number

 

[ThienBui]

There was no problem before changing the serial number

So I can't help you change it yourself, so you need to know what's wrong

 

[ay_bulut]

So I can't help you change it yourself, so you need to know what's wrong

The chip in the picture was defective, it had this on it. I installed MX25U3235F instead.

 

[ay_bulut]

It was put into DFU mode and restored. The problem is fixed.

 

[Đào Hưng]

a thiện fix e file này đủ nguồn không hình, nạp file cleame của a lên mà ko nhận ổ.

 

[popizdelkiUA]

MAC A1932 does not enter 20 volts.

 

[dimpu]

wrong schematic dosent match with boardview

 

[ThienBui]

wrong schematic dosent match with boardview

not same 820-01521

 

[Kanhaiya L. Patawa]

MAC A1932 does not enter 20 volts.

 

[Kanhaiya L. Patawa]

MAC A1932 does not enter 20 volts.