AK28 HD/HD+ User Manual V1.1
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Warranty Repair service will not be provided where:
Crashes or fire damage caused by non-manufacturing factors, including but not
limited to pilot errors.
Damage caused by unauthorized modification, disassembly, or shell opening not in
accordance with official instructions or manuals.
Damage caused by improper installation, in correct use, or operation not in
accordance with official instructions or manuals.
Damage caused by non-authorized service provider.
Damage caused by unauthorized modification of circuits and mismatch or misuse
of the battery and charger.
Damage caused by operation in bad weather (i.e. strong winds, rain, sand/dust
storms, etc.)
Damage caused by operating the product in an environment with electromagnetic
interference (i.e. in mining areas or close to radio transmission towers, high-voltage
wires, substations, etc.)
Damage caused by operating the product in an environment suffering from
interference from other wireless devices (i.e. transmitter, video-downlink, Wi-Fi
signals, etc.)
