Need help calibrating a hacked GT3C

[patrol_maverick]

I hacked my GT3C the other day and according the the instructions from Overkill, step 7 says the steering and throttle need to be calibrated.
Step 7 says 'CAL' should come up on the screen. I had it come up once, then disapeared before I could calibrate it. I reflashed the firmware for a second time to see if CAL would come up again, but it didn't.
Is there a way to access it from the menu? The menu isn't exactly easy to follow.

Another issue I have is the on screen voltage reads 9.3v, but the battery is only a 3.7v. It tests ok with a multimeter. Any suggestions?

I contacted Overkill the other day but haven't got a response yet. I'm guessing they aren't opperating over christmas/ new years.
Any help would be great.

[jaloos]

Calibration Procedure (you will need a volt meter)

To enter menu turn radio on, turn wheel full right then press and hold enter.
Its also displays right after you flash a new firmware...from stock firmware

With the 1 displayed on your left
Hold ST Wheel full left till numbers stop moving,
Press enter
Let ST Wheel center, once numbers stop changing
press enter
Turn wheel full right, once numbers stop changing
press enter

Now turn the enter button till 2 is displayed on your left

Hold trigger full throttle, let numbers stabilize
press enter
Let trigger center, let numbers stabilize
press enter
push trigger full reverse, let numbers stabilize
Press enter

now scroll to 4

with a volt meter measure your current battery voltage
press enter (while 4 is displayed)
Now scroll to the voltage your volt mete read
press enter

Now press and hold enter till you exit the calibration menu.

[patrol_maverick]

Worked a treat. Thanks

[Bmr4life]

Thanks for this. Helped me out.