xLukex

Hello, any chance someone on here can help me with EUROSEC CP8L? Recently moved into house with this alarm installed which I had the mains turned off for a bit so the alarm started going off. After turning back on the mains the alarm display is showing blocks of black squares. I've tried inputting the arm and disarm code with reset but nothing is happening, the display isn't going back to how it was before. Picture of the display below: Display image