Myphone MY28 5.1 Unlock using CM2 (No Flashing Needed)
Open CM2 SPD Software
In settings, CPU, choose SP[SC7730..SC7731] eMMC [Generic]
To be safe back up the Firmware and NV data
Go to Flash, click read Firmware
Turn off phone, Press Volume Up connect Phone to PC using usb cable
Wait till CM2 ask you where to save firmware
Wait till done saving Firmware
Then back NVM
Go to Security tab, choose Read NV
Turn off phone, Press Volume Up connect Phone to PC using usb cable
Wait till CM2 ask you where to save NV data
Wait till done saving NV
To Unlock
Go to Security Tab, choose SP Unlock
Turn off phone, Press Volume Up connect Phone to PC using usb cable
Wait till unlock is finish
Done
