MMM Flashing Green & Yellow? Quick help please

[Jahay]

Trying to get my mates hyper up and running using my MMM that was in my savage. It is connected to a HPI Torq 2200kv motor...

Everything connected up, steering working so Rx and Tx are bound. But the MMM flashing Yellow and Green...

i wasnt trying to calibrate and i had no throttle input.

My lipos are also fully charged???
On the castle site, it says

If you are not calibrating and have no throttle input:

Flashing Green and Yellow =low voltage cut-off(battery)

I tried to recalibrate the RX/TX, i held full throttle down and connected the power up, it just beeped twice and flashed green and yellow....

Has anyone experienced this??? can i get some quick help please before the sun goes down

THANK YOU & please dont tell me the MMM is not working, as it has just been sitting for a few months while my truck has been apart