Help!! Disable write protecting in beginning

[rafiek]

Dear Sir,

I have been very stupid, I have disabled the write protection in de beginning, by connection the two spots XH4 and XH6.
I get the following message 017A10081 320008 and then 01⌂⌂⌂⌂⌂81, it get stuck over here.
Sometimes I do not see anything on the LCD.
Twice I got the message KEINE SYSTEM, but I do not get this anymore.

Is it possible to repair this??
What are the options?

Thank you very much for answering.

Best regards,

Rafiek