Hi folks, hope your all well and enjoying 2020.
I just returned from a trip away and was counting down the minutes to go for a relaxing drive in my beloved hatchback, unfortunately my battery had died and I was unable to get out and about. I tried to start my lazy beast with a jump start which got my alarm going, so i pumped in my 4 code pin number expecting everything to calm down and allow me to start up but after entering the code not a damn thing changed. would a flat battery not allow the system to recognize the pin code? Or have I damaged the ECU? I've now removed the battery and got my trickle charger on it. Should I consider anew battery?
Appreciate any help folks.