How did you solder BDM contacts?
I'm asking because I've seen soldering with strange soldering liquid.
It was ZnCl2 (zinc chloride, commonly known as "tinners fluid") and what's worst...not cleaned afterwards!
So I got similar results, only partial writings via BDM. Took whole hour to find where the problem hides
May not be your problem however..
For everybody else who solder BDM contacts - don't use acid-based fluxes and ALWAYS clean residues between contacts.




does this mean i need to keep going higher with the port speed? any ideas?