If your Launch X431 V+, Pro5 or X431 Pro3S+ Lenovo Android tablet says the device is corrupt and will not boot. You may need a firmware reflash.   Preparation: Download 605 patch including these files: QUD.WIN.1.1 Installer-10040.5.zip QPST.WIN.2.7 Installer-00447.3.zip emmc_appsboot_printlog_and_repair.mbn … Continue reading How to Reset Launch X431 V+, Pro3S+, Pro5 to Factory Setting?