Garmin 660 I have a garmin 660 that I need help with the pin code. I have paypal transaction to prove it mine.

The only way is to take it to Garmin or goto the location that you create you PIN this will unlock it.

Unfortunately, even if you perform master reset on Garmin GPS unit, it does not reset Garmin Lock security feature, which password-protect most Garmin electronic devices to deter theft. If you forget the PIN or password unlock code to unlock the Garmin unit, the best solution is to bring it to Garmin to get unlocked. “Secure Location” does not unlock a locked Garmin unit either as it’s only a temporary fix as when it’s turn on outside the security location, the device is locked again."

So unfortunately, there is only one option: You have to send your nüvi into the Garmin, who can unlock it. Remember original receipt.

Please see this article on the subject

http://www.fixya.com/support/r1121296-lost_pin_garmin_lock_nuvi_series

if you dont havethe security location which unlocks it when you bring it there your screwed unless you have the receipt you can send it to garmin if not its garbage same as mine

Owners can select a pin code to use which locks the unit preventing use by theives. Sat Nav theft is a big market. The unit needs to be sent to Garmin who will verify you are the registered owner and unlock it for you. If you bought at a market is there a good chance it may have been stolen?

Here are your options:

1. Enter the correct PIN.
2. Go to the secure location where you set the PIN and the unit will not ask you for the PIN.
3. Send the unit back to Garmin to be unlocked.

I have had sucess in unlocking Nuvi's but I will only do it for owners who can prove ownership through a valid sales receipt and/or proof of ownership through registration through Garmin.

- Jim

1. Enter the correct PIN.
2. Go to the secure location where you set the PIN and the unit will not ask you for the PIN.
3. Send the unit back to Garmin to be unlocked.

I have had sucess in unlocking Nuvi's but I will only do it for owners who can prove ownership through a valid sales receipt and proof of ownership through registration through Garmin.

- Jim

The only way to unlock a PIN locked Garmin is to enter the correct PIN number, or take the unit to the location where the PIN was set. Your only other option is to send the unit to Garmin.

sounds like it was stolen,must people won't believe you but if it's true call garmin they will help you when you prove it's really yours

Update to 4.10 software. I had simular problem but after updating it was solved.