I used the official app, while the device was connected to the internet. So yes, ASUS knows that I unlocked the device. The device was still at the -75 firmware, when I did it. @MirkoMirko9 If you can live with asus knowing that you unlocked the device, try it again with active internet connection. As far as I know, there is no other method yet. But it didn't work, reason shown was, device isnt supported. I was damn sure that app was for my device model asus zenfone 2 ze551ml. I was pissed off as I couldn't unlock the bootloader. Which made me curious to find other ways to unlock my bootloader. I saw a thread on XDA forum which explained a method to unlock the bootloader using a tool Got issues on my device: 1) Wi-Fi did not work 2) 4G is working 3) Both back cameras are not working 4) Frontal camera is working 5) Cannot place or receive calls (Carrier: Claro-BR) Asus Pixelmaster Camera App: Super resolution mode does not work. Turning off "Optimizations" from settings clears up any green line issues. Some video formats do not play as expected ; FM Radio is unsupported. audio is a little weird in Real Racing 3. sim 2 cannot be disabled (this is true for all CM builds on non qualcomm hardware) .

asus zenfone 2 xda