Hi zart. In order to unlock your phone, you must meet all the requirements outlined in the following document: SOLUTION: Sprint Hints for Successful Unlocks
You will need the original owners name or account number in order for us to access the account and process the unlock. If you have that information, please send it to me in a PM.
Hi！I don't have the account information of the original owner.
Last year I bought this phone on eBay .He told me he had paid the bill a year later I can ask sprint to unlock the phone.
Can I unlock the phone now?
Unfortunately without the account information for the previous Sprint owner, we cannot unlock the device, per our policy. We either need the owner's name or account # in order to assist further.