WT901SD | manual v0707 | http://wiki.wit-motion.com/english
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2.4.11
Restore Factory Setting
There are two ways to restore the factory settings, the short circuit method and
the command method.
Short-circuit method: short-circuit the D2 pin and VCC pin of the module with
wires, and then power on the module. The LED of the module is on continuously
for about 2 seconds. The LED is off, and the factory reset operation is
completed.
Command method: connect the WT901SD module and the computer through
the USB-TTL module, click the setting tab, and click to restore the default. After
restoring the factory settings, power on the module again. (This method needs
to know the baud rate of the module in advance, if the baud rate does not match
the instruction will not take effect, please try to use the short circuit method to
recover)
