Orange5 Scripts -

-- 4. Recalculate checksum (custom function) fix_checksum(0x000, 0x3FF, 0x400)

Start by downloading a known working script for a common module (e.g., 93C66 on a VW cluster), open it in a text editor, study the steps, then adapt for your needs. Orange5 Scripts

-- 2. Backup original read_chip() save_buffer("backup_" .. get_serial() .. ".bin") 93C66 on a VW cluster)

function fix_checksum(start_addr, end_addr, checksum_addr) local sum = 0 for addr = start_addr, end_addr do sum = sum + get_byte(addr) end sum = sum & 0xFF set_byte(checksum_addr, sum) end open it in a text editor