My K20D dead

With years of abuse, my K20D finally dead a few months back.  Well, it's not dead. It's very strong indeed, except I have broken the top cover and resulted in malfunction of the mode dial and light-meter switch, which makes the multi-segment meter and P mode gone.  Not a very big deal for me.

However, another problem make me put away the K20D in the deepest corner of my camera box forever:  it's a strange horizontal line on EVERY picture I took with K20D, jpeg or RAW.  At first, there was a dead pixel on every pic.  Easy fix with Pentax because K20D comes 'pixel mapping' function, handily in the setup manual.  It turns out to be a disaster:

INSTEAD OF JUST ONE DEAD PIXEL, A HORIZONTAL LINE TOGETHER WITH MAPPING ARTIFICE APPEARS ON EVERY PIC.  (See below pix)

While dead pixel can be easily fixed in Lightroom, the mapping artifice is very troublesome because I have to fix it manually.  

My K20D served a good 70,000 shutter count. So I just let it R.I.P. in my camera dry box. Amen,

I get a used K5 instead.