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Note: If fail to update with poping up “USB tool can’t communicate…”“Cannot communicate with the tool…”, it maybe because of power from USB is not strong enough. Please try to use a CAT5 cable to link IX850 to PoE switch to get the power. Then close this PC software, reopen the firmware and restart the update .(For some extreme case, you need to unplug the cable, close and reopen software, try for 2-3 times)
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For more details, please watch the video by this link: https://1drv.ms/v/s!ApVgqTKy9CI-h202KEMuW8iUfe72?e=Hxtgxj