How can I unlock the CD/Radio, for Mazda 121 it locked when I was trying to change the battery it doesn't show where to enter the PIN Code but it shows on the screen LOCKED

S. Masina, masinasellah@yahoo.com, August 2008

Try these instructions:

1. Turn the radio OFF.
2. Press and hold the '6' preset button.
3. Turn the radio ON.
4. Do not release the '6' preset button. Continue to hold this button until the radio stops showing "LOCKED". This may take up to 40 seconds.

Note: If you're lucky and this works, DO NOT put the random codes in, as after 1 or 3 more invalid attempts it will be LOCKED again and these steps will not help as they work only once.

A.R.S., November 2012

Ask a NEW question quoting MAKE , MODEL and ALL the SERIAL NUMBERS on the radio casing

RegWorts, August 2008