There were a few people that picked up telemetry radios with the CP2102 chip and they would not work with android gcs. Possible work around is to solder connections for a bluetooth module directly to the ground radio. If the insides look like this one it should work. The connections are shown with RX/TX already swapped so connect directly as shown. The removal of smd resistor on RX was by accident you should try to leave them on there if possible so the CP2102 can still be used. You can power ground radio from usb plug. UART, both radios and BT module must be set for 57k operation. There are many variations of hardware out there so no guarantees...
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