Here is the official reply from TuneRC:
The default ESC firmware preflashed to Poly F405 V1.2 AIO is Bluejay V0.21.0, the default minimum start up power is 1024 and the maximum start up power is 1020. The start up power value is a bit low for 11xx and 12xx motors. So this might cause some small motors don’t spin up properly.
The solution to solve this issue is to increase the start up power in the ESC configurator.
Please check out the article below to see how to set up the startup power and motor idle.
https://github.com/bird-sanctuary/bluejay/wiki/Setup
Please keep me updated if the solution above is helpful.
Kind Regards
Alex
Unmanned Tech Support
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