ISSUE: Cannot calibrate flap neutral after flashing OpenTx 2.2

Date

23 Oct 2017

Applies to

All templates

Symptoms

After flashing your transmitter from OpenTx 2.1 to OpenTx 2.2, the GVAR for adjusting flap neutral is locked and cannot be edited.

Cause

The cause is a bug in OpenTx 2.2. It causes the GVAR to be corrupted when the EEPROM is translated from 2.1 to 2.2 format. The translation is performed on first power up following flashing to 2.2.

The bug only occurs for translations in situ in the transmitter. If you loaded your models via Companion 2.2, then the translation will have been done correctly and no further action is necessary.

Solution

Two solutions, in order of preference:

More info

A fix is due in OpenTx 2.1.1. For more info see GitHub.

Safety

Remember to test your setups thoroughly before flying.

Support page