![background image](http://html1.mh-extra.com/html/viewsonic/va721-2/va721-2_service-manual_1020970046.webp)
Note :
(1)
Disable the “ Enter ISP Mode ” option to avoid the error message display
(2)
If you using the MTV312M64 or before MCU serials , the MCU will always in “ ISP Mode “ even
Programming fail or erase MCU that instead of select or press “ Reset MCU “
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