Upload your CEM flash 28F400 (512 KB) / ECU EEPROM 24C04 (512 bytes) for VOLVO P2 CEM → ECU (24C04), choose the operation and download the modified file. Processing runs on our server, in your browser — nothing to install.
Upload your fileRequired file: CEM flash 28F400 (512 KB), ECU EEPROM 24C04 (512 bytes)
Volvo P2 — S60 / S80 / V70 / XC70 / XC90. Upload the CEM flash 28F400 (512 KB) and the ECU EEPROM 24C04 (512 bytes). READ (free) shows the CEM sync in both byte orders (as read and swapped) and the ECU sync. Select the byte order your programmer used to see the key slots. SYNC CEM → ECU writes the CEM sync into the ECU EEPROM in the selected byte order (1 token). Without a CEM file you can type the sync. Always keep a backup of the original reads, then write the ECU file back.