Hi LarryGB
If you look at your meter's din connector, not the din plug, rotate the meter till it looks like the diagram below, it should look like this.
bbbbbbbbbbbbbbbbbbbbbbbbbbb *--*-----------------Flying lead
bbbbbbbbbbbbbbbbbbbbbbbbbb * ----*
bbbbbbbbbbbbbbbbbbbbbbbbbbb *---*----------------Flying lead
Where I've drawn 2 lines you need to locate those pin connections on the circuit board, and solder 2 flying leads that can come out of the gap to the side of the power connector/or somewhere, they don't need to be long, i used alarm/telephone type cable for this, and put the meter back together.
Get the latest dataset from lacuna, and start the loader program,make sure you've set the com port correctly, turn on meter, strip back a little insulation off the end of the flying leads, and without directly shorting the wires, squeeze them between your finger and thumb, and try to send the data to the meter, if you see the loading bar loading to the meter, don't let go of the wires, or you will break the download, if it still comes up with (Send new line 0) then you will have to keep trying till you get it.
To those of you reading this you may well think I've lost the plot, but in fact i haven't.
By squeezing the wires together, your putting a resistance across the flying leads, and HarryGB, I've found that when my hands are sweaty, worked best for me, but wetting my fingers, then drying them did not have the same effect.
It worked for me , so should work for you, let me know how you got on Mate, it may work first time, but if not keep trying, keep trying, till you get it, once done tape the wires to the side of the meter, and write down what you did, and keep it in a safe place, for the next dreaded time.
zac2613
Ps Ill be monitoring the thread today, so if you got any questions then please ask. And just for you HarryGB if you attach a glass diode to one of the flying leads, you may even pick up a radio signal. LoL