PIC18F1220 locked up

[eggman]

Well, I tried to program with RB5 (PGM) pulled low, still no luck. As soon as I try to start my Pickit2 with the PIC connected it reports: Device Error - hex file not loaded. So it will no longer recognize the wrongly programmed PICs, maybe I should try another programmer.
best,
Kees

[Bruce]

With the Pickit2 software running select Tools, and place a check next to Use VPP First Program Entry.

If it doesn't recognize the PIC with LVP at ground try it without this pin at ground.

[eggman]

Thank you Bruce,

You made my day!

regards,

Kees

[Bruce]

Cool...

Why not explain/post what you did that fixed it for other folks that may run into the same problem?