Hi. i have bought a 3dr 433 mhz telemetry from banggood.
Im struggling with some problems.
I have a solid green light and a blink red light which is not very visible.
1)when i try to load settings on mission planner, it errors “failed to enter command mode”
2)when i try to upload firmware(local) , it says “could not put in to bootlander mode”
Please help me. Im in hurry for a competition.