USB O.T.G. firmware Upgrade
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4. Decompose downloaded O.T.G. firmware file and
execute [Enduser.exe].
5. Push the [Download] button to start upgrade.
Caution:
NEVER switch off RSH-250 or disconnect USB cable during O.T.G. firmware upgrade, which may
result in fatal damage to the product.
Download firmware files on http://www.bull-it.ch.
6. Wait for firmware upgrade to be completed. NEVER turn
off the power or disconnect USB cable.
7. The following screen appears when the firmware
upgrade is completed successfully. Then, RSH-250 starts
automatically and detected as a portable storage device
by PC.
8. Click [OK] and then [Quit] to exit the upgrade program.