Flashtool Xperia Driver Pack v1.9 is a crucial utility for Sony Xperia owners who want to modify their device's software. It acts as the bridge between your PC and your phone during deep system operations. Bottom Line
My old device is an XA2 and the button press combos when connecting to pc were: Hold vol up whilst plug into pc for fastboot mode. e/OS community Flash tool | Developer World flashtool xperia driver pack v1.9
Try using a different USB port. USB 2.0 ports are generally more reliable for flashing older devices than USB 3.0 ports. Also, ensure you are using a high-quality data cable (preferably the original Sony cable). Flashtool Xperia Driver Pack v1