Disabling HP65/67 card reader write protect

[Don Shepherd]

(03-07-2019 09:06 PM)Thomas Okken Wrote:  

(03-07-2019 06:30 PM)Don Shepherd Wrote:  You can write to protected cards easily with an "unprotect" card

How far do you have to push that card in for it to trip the switch? I have never opened my 67 and I have no idea how the mechanism is laid out...

I've never opened mine either (gummy wheel fixed by someone who knows what they are doing). As I recall, I just inserted the 45 degree angle card maybe .5 inch into the opening on the left side (until it was gripped) and then tried to write the card inserted in the right side, and that worked. You may need to experiment with +/- .5 inch if it doesn't work the first time, but my memory is that it worked really well without a lot of retries.