FPV Model ZMR250 V2, Build Manual

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Notice on the flight controller: It doesn’t require for soldering if the ESCs have no BEC. The flight controller can be
powered by soldering to “5V” (circled in red).
Install ZMR250 V2 Frame
Important Reminder: If you’re using the old version PDB (V1.0), you’ll need to use the supplied insulation washers
when fastening arms to the PDB. The washers are not required if use higher version PDB (v1.2 or above).
Note: The ZMR250 V2 that sold after August 25th, 2015 does not need to use the washers.