Psion Series 3mx SSD door microswitch repair

I recently bought a Psion Series 3mx on eBay but found it didn’t recognise SSDs inserted in either A or B slots and suspected a motherboard fault. Having found a cheap 3mx to test this, and checking that it did indeed read SSDs OK, after swapping the motherboard it didn’t help. Not only that but it also failed in the same back in the original machine.

Read More