1. Copy SPR30277_MC32_C70_en_105704_v1_0.cab into \Application in device and install it.
2. Double-click FirmwareUpdate.exe [inside folder \Application\ScannerFirmware\Tool].
3. Press 'Firmware' and browse the scanner firmware CAABVC04-001-R00D0.DAT [inside folder\Application\ScannerFirmware\Firmware]
4. Press Flash Scanner and wait for scanner firmware flashing to be complete.
5. Now warm boot and double-click FirmwareUpdate.exe again.
6. Check the firmware version as PAABVC04-001-R00 in the Engine field of Firmware Update