I just bought a used MobileDart Evolution MX7 and the battery died cou
ple days ago,
I changed it with your installation manual instructions and did the ad
justment for the battery and everything is good for the system with no
errors,
The problem now is that the DR system when I turn the button on it it
turns on for 2 seconds beeps 3 times then turn off I can hear the soun
d of the computer turned on and the fan and see the light on only for
couple seconds,
Please advise me what to do to fix that
