Xhorse new test report from Mr. Mohsin Sabrin
2013 Audi A3 all keys lost done with vvdi prog and vvdi2.
Easy Job. Read Flash and Eeprom, make new keys and adapt.
(BDM method) Make dealer key with following steps:
1. Activate OBD communication by opening emergency indicator, press on the brakes for several times. Backup ABS coding, you can run backup function on bottom right corner, or enter diagnostics 03 ABS, backup abs coding.
2. Find eeprom chip from instrument, usually use 24C32 or 24C64 chip, read EEPROM dump with vvdi prog programmer and save as original EEPROM dump
3. Enter “Service Mode“, load original EEPROM Dump and prepare service eeprom dump. Note: Don’t overwrite the original eeprom dump.
4. Write service eeprom dump to eeprom chip (24C32 or 24C64)
5. Restore dashboard to car
6. Back to main window and select right login type
7. Load original EEPROM dump (IMPORTANT !!!)
8. Activate OBD communication by opening emergency indicator, press on the brakes for several times.