Sony Xperia Z2

Sony Xperia Released in Year 2014. 5 Years since i last touch this and it is now back in my hands Received it for repair. Phone is pattern lock when switch on So how i removed it by doing a Firmware reset. Booted the phone into fastboot mode, downloaded the Firmware for Xperia and flashed it. Using the downgrading method. Sourcing for an Android 4.4. Build number 17.1.2.A.0.314 And than software update it to the latest Android 6.0.1. Build number 23.5.A.1.291