How I restore Magellan Maestro 3225 GPS?

HI, I have Magellan Maestro 3225 GPS and I by mistake delete application folder now my GPS is brick or stuck(I copy all my GPS file in the computer) but USB did not connect so I restore my GPS and re-enter all data from computer.If some one have all files please send me at zareennadeem@hotmail.com with step by step instrucation.I also try hard reset but did not find OS .Thank you