cables are not safer way to unlock any phone. unlocking through cables is also a tedious process. you no need any physical connectivity when you unlock through codes as you do in cables. also while unlocking through cables there are chances of dataloss or hardware crash when any one process goes wrong. so its alway better to unlock your phone through codes. its the simple and easier way to unlock your phone. i got the codes from here Simpleunlocking.com to unlock my phone. you can get one to unlock your phone.