Sorry to tell you, but the Config word is not accessible through your program in any way.
The only way is to solder-on leads for ICSP but bear in mind that a high voltage is applied to MCLR (easy if you have tied this to Vdd with a Resistor, just unsolder it), and that RB6/RB7 carries the programming data and clock so it shouldn't be loaded down with too much baggage. PIC will have +5v on it... so again, best to isolate it rather than power up your entire PCB. http://www.picbasic.co.uk/forum/atta...8&d=1088530104
Other than that, it's time to make friends with your favourite desoldering tool...
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