First fly, big problem with throttle | Betaflight | Page 1

Hi, I just built my first fpv drone and had an accident, the first flight lasted 3 seconds? The problem is that the drone does not respond to the throttle. The rest of the axes, roll, pich, yaw, work properly and the motors spins. I'll tell you what happened. I tried to take off the drone, all axes worked, he didn't want to fly up, no reaction to throttle. Suddenly the drone shot up, and I couldn't control it, so I had to turn it off. I think I set something wrong in betaflight. Can You help me?

Stack: Speedybee F405 V3

Motors: T-Motor Velox V3 V2207 1750kv

Receiver: Foxxer ELRS 2.4G

Controller: Radiomaster TX12 MKII

I took the information on how to set up the drone in betafly from this video:
https://youtu.be/ZaBlsTkxKIM?si=Q1ZtBjcG9EP-f_5D&t=2079

I would like to add that I have experience flying a drone, it is not my first drone, but my first FPV

#First fly, big problem with throttle