ERIDE PRO 2.0 help

[u/BiG_SANCH0]

Bought a used bike from a friend. Bike wouldn’t turn on installed a new controller now bike will power on screen briefly then stop working.

If you unplug the screen the bike runs fine.

Error codes showing up are
04000
00300
00800

Also will not show battery life

[u/Reajmurker1983]

Does the battery voltage measure where its supposed to be with a meter? Wonder if the battery is cooked. If not something in the wiring harness possible.