BY-U301 Data Assistant for MacBook Backup Write Read Repair, read and write USB_C ROM chip data, write the ROM chip data (CD3215 and CD3217).
U301 Features: 1. Used to read and write USB_C ROM chip data (CD3215 and CD3217) 2. U301 contains the original ROM data of the 2016-2020 USB_C chip, a total of 26 3. The Type_C circuit of the MacBook adopts the 5V-20V boost process. If the ROM data of USB_C is damaged, the motherboard will only have a 5V power supply. 4. When the power supply of the MacBook motherboard changes from 0V to 5V, it means that the USB_C ROM data is damaged. 5. Use the U301 tool to write the ROM data of the corresponding model, so that the motherboard power supply is normally boosted to 20V
Applicable models: 1. Applicable to all MacBooks with Type_C interface from 2016 to 2020 2. The USB_C chip of the MacBook from 2016 to 2018 uses CD3215 3. The USB_C chip of MacBook from 2019 to 2020 uses CD3217 The board number, ROM chip and year corresponding to the machine 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
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