Hi all!
This is my first post here, but I've been reading this forum for a month now and I found it really nice!
I'm really new to FPV (actually I didn't even start with the real thing  ).

After reading many people's opinions, I decided to buy a controller and play simulators for a while, so that I could understand when to buy a BNF drone (and which one).

Since I didn't know if I was going to like it, I decided to make some compromises and I choose to buy the Jumper T-Pro and DRL sim.
I've been playing for few days now and I'm liking it a lot!

But today I had a problem. while using the throttle, I noticed that my drone was having a little bit of yaw.
I checked the signal going to the computer and when I move straight up the throttle there is a peak on the yaw channel (to the right) around mid-range, even though the gimbal is perfectly centered. I noticed it in EdgeTx as well, so I thought I might need to calibrate (I never did it before).
The result was a disaster, because this "fake" yaw peak sums up to the actual movement so I can yaw to the right just a bit and when I use the throttle the drone turns to the right.
I looked up in the forum and I didn't find anything…

This is the video of the output I get when moving the throttle (throttle is axis 2, yaw axis 3):


Can somebody help me, please?

Thank you!

p.s. I'm not a native english speaker, so I hope you can understand…

I have neither radio nor simulator but what I would look at is calibrating the sticks and adjusting end points in the sim and the goggles. Also experiment with yaw dead band.

Thank you for the reply. I recalibrated the sticks, but the problem was still there. So I disassembled the posterior cover and noticed that there was some dust on the yaw magnet, on the right. After cleaning it up a little bit, it works fine (let see in the future). Before doing so, the peaks got even to 60% of the signal band.

ok so checking more carefully with the sunlight I noticed there is a scratch on the gimbal magnet. The problem comes and goes, so I will try to ask for a replacement.

as I'm new to fpv I was really wrong with the diagnosis.
The wires of the gimbal that transmit the yaw movement were soldered a little loose. Looking around I discovered that many people are having this exact same issue (for some reason all with the yaw pointing to the right).
I'm not experienced in soldering and this pins look a little too small as a first attempt, therefore I asked banggood to get the replacement gimbal but it is taking forever.

I wanted to share my experience so that if someone has the same problem with the yaw gimbal of the jumper t-pro (and propably t-lite) may understand what's the reason behind.

Hopefully you get your replacement soon from BG.

Probably best buy important purchases locally as shipping and returns with overseas stores is a pain nowadays.

Hi guys! After getting the gimbal replacement, I was finally happy with my t-pro. I decided to buy the shorter sticks because I think that the sticks end are a little too far for thumbers (I tried to switch to hybrid, but I'm not patient enough).
I changed the sticks (the metal pin in the center) and now the one on the left is a little bit loose and rotates after screwing on it the stick end and its support.
What do you think I need to do in order to make it stay safely in its place? Loctite?
thank you!

I know banggood is isn’t known for their customer support, but damn, 11 months is a long time to wait for a gimbal.

A little bit of PTFE plumbers tape might hold it in place.

Well I don’t know how much time it would have taken… after 1 month I asked to be refunded and I ordered the gimbal on aliexpress. In 10 days I got it

Thank you! Ptfe worked amazingly