Ya , sure to unlock your mobile phone many methods are there , like codes, software, cables, hardware & calculator.............Among all these methods i prefer you to unlock your mobile with codes, why i am saying codes means to unlock your mobile with codes are simple & easy way, just follow the instructions and get the unlock code from this site
http://www.prounlocking.com/lg/rs8wp8/ , just give your IMEI number , country & network lock surely you can get the unlock code for your LG model mobile from the network lock.............Wish you all the best...........