Belly Wires (New Version); Loading Pc Software For Fc (Pc-Gcsoftware); Problem Resolution - WLtoys V303 Supplemental Information

Appendix 1: WLToys V303 Supplemental Information v18
The power connector is connected to the power distribution board in the Quad which attaches directly to the battery.
The connector used is somewhat unique:
Molex Part Number #50-57-9402
$.26US at
Some users have found they cannot get power off of the Belly power connector and have found a PC board problem
below the power distribution board on the connector belly PC board.
be corrected by bridging.
I haven't found any documentation on the Com Port other than Black and White is either TX or RCV. The COM port
attaches to the FC and support the Wi-Fi Telemetry module. The Wi-Fi modules for this FC come with plugs that will
directly work with this connector.

Belly Wires (New Version)

Users have found a three wire belly wire with a connector on some of the newer models which can be connected with a
Gimbal unit enabling pitch control of the Gimbal from the transmitter.
the belly wire extending from the square hole in the bottom of the quad. We have verified that at least one user with
this connector is running firmware version 141043.
These connectors will allow the Transmitter to successfully control the pitch of a Gimbal.

Loading PC Software for FC (PC-GCSoftware)

Download the Drivers and PC software. Links can be found in the
software once downloaded needs to be decompressed since they are in ZIP and RAR format. If you don't already have
support to un-compress these files, consider installing this software.
Warning: If you connect the quad to the USB and plug it into the PC running the software before you start the V303, you
will be prompted with FC firmware upgrade. Exit app immediately.
upgrade with WLToys FC
1. Load latest USB-Serial driver.
2. Plug micro USB into the under-belly of V303
3. Power Up V303
4. Plug USB cable into computer (after Red- Green / Green – Green).
5. Driver might show a yellow exclamation mark (use Control Panel/System/Device) .. be patient
6. After about 5 minutes the exclamation mark disappeared.
7. Start the PC software
8. Press Connect to USB.
the button under the Read, Save and Default buttons. If so click there.
9. It connected on computer (Win7) perfectly.

Problem Resolution

The following represents common problem discovered in the first three manufacturing waves.
If you've discovered any of these problems within 4 days of receiving the quad, you need to contact the store/distributor
to report the problem. In most all cases they'll want a video which depicts the problem. They may offer to give you a
7
SL™ Crimp Housing, Single Row, Version G, Positive Latch, 2 Circuits
DigiKey
upgrade). Unplug USB, Re-insert and start software again.
This button may be only partially visible on your display. You may see a bit of the top of
Here is a more detailed picture
Here are some photos
Additional Resource section of this document. The
Do not update firmware (unless you are planning to
of what needs to
of the internal wiring and
June-10-2015