I have a Uni-Clip & it has unlocked several phones fine. As far I know, when I bought it, it was the only clip to unlock the Nokia 7610, Sharp GX30, the Sendo M550 & the LG 81xx. It is easy to be complacent, but I have experienced problems in the past with nearly EVERY type of unlocking device/software that I have bought, Its how you use it & deal with it that matters. I have made my money from this device & I look forward to any updates.