Problems programming a 10F206 PIC using the Melabs U2 USB Programmer

[richard]

sounds like you have erased the chips osccal value.
search the forum for osccal and how to recover the value.

[mpgmike]

Referencing Figure 1 (page 2) of the PIC10F200/202/204/206 data sheet, VDD is pin 5 and VSS is pin 2. How did you physically mount a PIC10F206 into a ME Labs U2 Programmer?!?

You are going to have to run jumper wires to a PICkit3/4 to program this micro beast (or run them to your U2).

[Ioannis]

One problem seems to be the calibration that might be lost. On my programmer (Elnec Pikprog+) there is a checkbox to preserve the calibration before erasing the chip. Please check that on yours.

The second problem seems to be related to a bad contact of the pins, wires or whatever you use to physically connect the chip to the programmer.

Ioannis