Sony's Xperia Z5 Compact is an Android smartphone featuring a 4.6" IPS LCD display with 720 x 1208 resolution, quad-core Qualcomm Snapdragon 810 processor, and 2 GB RAM. Released in October 2015.
Resetting the phone via Sony PC Companion is useless. Phone starts after that but you cannot endup configuration. Probably only offical service can unlock this phone using hardware key.
Have you already tried resetting the phone via Sony PC Companion?
da Ben
You can do a factory reset without PC companion.
da George A.
And what if you reinstall the stock android with the Xperia Companion?
da Gellért Andrási
Resetting the phone via Sony PC Companion is useless. Phone starts after that but you cannot endup configuration. Probably only offical service can unlock this phone using hardware key.
da David