Quest2 GPS hangup


Just wanted to ask if anyone has had a problem with a particular GPS unit (Garmen Quest2). I have had this unit for about 3 years and since starting to load poi's etc. It seems to hang up or go dead for periods of time can't even shut it off, so have to physicaly disconnect it and let the battery go down. Then I can re insert it on the bike and it seems to work ok. Anyone else having a problem like this?