Baiyi U301 USBC ROM Assistant For MacBook Read Write Repair ROM Backup Data

All MacBook Type-C interface versions from 2016 to 2020 are supported by the BY U301 USBC ROM Assistant, which is used to read and write data from MacBook USB-C ROM chips (CD3215 and CD3217). The MacBook boot voltage issue was fixed by reading and writing ROM chips via the U301 data assistance connector, which allowed the MacBook to correctly boot.

BY U301 Data Assistant Features:

Read and write MacBook USB_C ROM chip data (CD3215 and CD3217). The USB_C ROM chip of the 2016-2018 MacBook uses CD3215, and the USB_C ROM chip of the 2019-2020 MacBook uses CD3217.
Applicable for all MacBooks with Type_C interface from 2016 to 2020.

The Type_C circuit of the MacBook uses a 5V-20V boost process. Use BY-3200 Mac Power Cable to test the MacBook, if the USB_C ROM chip data is damaged, the motherboard will only have 5V power supply. When the power supply of the MacBook motherboard changes from 0V to 5V, the USB_C ROM data is damaged. So we can use the U301 socket to write the ROM data of the corresponding model, makes the MacBook motherboard power supply boosted to 20V, and the MacBook can work properly.

Video:

Support model list:

A1706 820-00239-A U2890, A1706 820-00239-A UB090 2016
A1706 820-00923-A U2890, A1706 820-00923-A UB090 2017
A1707 820-00281-A U2890, A1707 820-00281-A UB090 2016
A1707 820-00928-A U2890, A1707 820-00928-A UB090 2017
A1708 820-00875-A U2890 2016
A1708 820-00840-A U2890 2017
A1932 820-01521-02 U2890 2018
A1989 820-00850-A U2890, A1989 820-00850-A UB090 2018
A1990 820-01041-A U2890, A1990 820-01041-A UB090 2018
A1990 820-01814-01 U2890, A1990 820-01814-01 UB090 2018
A2141 820-01700-A U2890, A2141 820-01700-A UB090 2019
A2251 820-01949-07 U3060, A2251 820-01949-07 UB260 2020
A2159 820-01598-A U2890 2019
A2179 820-01958-A U3060 2020
A2289 820-01987-06 U2890 2020
A2337 820-02016-A UF260 2020
A2338 820-02020-A UF260 2020