I have an old HP iPAQ hw6515 Mobile Messenger smartphone that used to be on Cingular. I want to unlock it to use on Verizon. First of all, if I unlock it, is it even possible to use it on Verizon? If so, can someone give me an unlock code? My IMEI is 357413000521678.

Note: I do not want to pay for the code. Please do not post a link to a code generator that requires me to pay, even if it's cheap.