Problem in Mobile tracker system ..please do help

Deal Friends:

I have buy one phone:smasung (2nd Hand ) J700 but on this phone already Mobile tracker password is applied , so how i can change it.please help ,,,i m also listning some tines some tunes during calls.please help also i am unable to set phone lock Password for my Securty locks specially for messages and pictures.

always take a receipt from the seller of the 2nd hand phones or you can get in trouble.

the advise is to flash the phone .

Just Get the mobile phone flashed form any local mobile market.

no waaaay...don't flash , do a master reset and put a new security in tracker , it will be fine