Disconnect the USB cable. Power on the phone. The first boot may take 5-10 minutes (especially after "Firmware Upgrade").
While this specific version was widely associated with the series (including the X10 mini and X10 mini pro), it was also compatible with other contemporary models like the Xperia Arc , Xperia Play , and Xperia Neo . General Requirements flashtool v0291 13
(often simply called Flashtool), an open-source utility primarily used for flashing stock and custom firmware onto Sony Xperia devices. Core Purpose and Compatibility Legacy Focus Disconnect the USB cable
If you cannot find a working link for "flashtool v0291 13," search for "SP_Flash_Tool_v3.1224.01" or "SP_Flash_Tool_v5.1352.01" – these share the same DA library and behavior. flashtool v0291 13
The tool successfully recognized the phone via the USB driver.