Before using the tool, you must put your printer into . Without this step, the software will not detect your device. Step 1: Entering Service Mode Turn off your printer (but leave it plugged in). Press and hold the Stop/Reset button. While holding Stop/Reset, press and hold the Power button. Release the Stop/Reset button (while still holding Power).
Older software versions like V3400 or V4905 fail on newer printer models. Version V5306 adds exclusive security bypasses. It works without locking your printer mainboard into a permanent "Error 006" state. Supported Canon Printer Models canon service tool v5306 exclusive
: Version mismatch (the printer model is not supported by V5306). Before using the tool, you must put your printer into