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Notification during M17 update
In case of updating, sometimes M17 will be turned off three times during the updating.
Please turn on the power button if display was black out. (DO NOT take off Micro SD card).
Updating will be restart.
Please DO NOT TURN OFF M17 or DO NOT TAKE OFF Micro SD Card during update.
Please DO NOT UPDATE in case of LOW BATTERY.
How to Update: sanwa-denshi.co...