Problema gas Turnigy 9x

[Alexgri]

Ciao ragazzi,
ho un problema con la radio turnigy 9x, MODE 2, ho sempre volato tralasciandolo ma ora è arrivato il momento di affrontarlo.
Quando accelero il gas parte da poco sopra la metà corsa in su, mentre al di sotto non succede nulla.

Ho letto sia alcuni topic sul forum che non mi sono stati utili, sia su forum inglesi dove consigliano di rifare la calibrazione degli stick in questo modo:

Push the right lower trim tab to the left (aileron on a mode 2 TX), and the left side trim tab up (Throttle trim on a mode 2 tx), and while holding them, turn the Tx on. You will get a screen that shows the version number of the firmware, with four zeroes (0000) at the top of the screen. Center both sticks in their range in all axis, and press the menu button until it beeps and release. The screen number will change to 0001 Move the right stick to the upper right corner, and press menu, and you should get a beep, and the number on the screen will change to 0002. Put the right stick in the lower left corner, and press menu, and get a beep, and the number will change to 0003. Release the right stick, and put the left stick in the upper right corner, and press menu, get the beep, and the number will change to 0004. Put the left stick in the lower left corner, and press menu again, get the beep and the number will change to 0005. Center both sticks, and press menu, get the beep. You are done calibrating the sticks.

While at the same screen, press the + key, the screen will change, and you will get the position of the controls in hex code. You can see the numbers change as you move the sticks or knobs. Press - to go back to the firmware version screen. Exit the firmware screen, and go to the Display menu item. As long as you haven't turned the TX off, you will see the hex codes for stick positions for the 4 primary controls. Once you turn the tx off and back on, and go back to the Display menu item, the numbers will disappear.

Non è cambiato nulla seppur abbia eseguito correttamente il procedimento.
Qualcuno di voi si è imbattuto in questo problema? Come posso risolverlo?
Grazie!

EDIT: nemmeno resettando l'ESC ha funzionato.