I have problem with my https://www.aliexpress.com/item/F02192-U-JMT-Assembled-HJ-450-450F-4-Aix-RFT-Full-Kit-with-APM-2-8/ drone wich flips on side or back on lift up.
I have calibrated ESC,Radio, motor an propeller directions and so on. There is no stability on hand test, all motors holds same rpm,s .
Might there be some error with parameters ?
Regards YB
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