It's been said before, but I just thought I'd re-itterate, on the 1.2 and 1.3 xbox, the bottom point are EXACTLY THE SAME as the top points a little to the left of the TSOP. it is never necessary to do all three, the bottom points will only have an effect if you haven't done the top ones correctly.
The benefit of this is that if you have a ohmeter or multimeter, the bottom pair gives a foolproof place to check that you've soldered that top pair correctly. This is a little pointless though, since following the traces for both pairs on the top give very simple places to do the checks anyway.
If you've checked with a multimeter, but still get a 'flash not writable' error in evox, chances are you're missing the line in evox.ini which identifies your chip. Either try and hunt down the specific line to add, or (as I do) just add all the following lines (you can't have too many!):
Flash = 0xadb0,"Hynix HY29F002",0x40000
Flash = 0xada4,"Hynix HY29F040A",0x80000
Flash = 0xad23,"Hynix HY29F400T/AT",0x80000
Flash = 0xadab,"Hynix HY29F400B/AB",0x80000
Flash = 0xadb9,"Hynix HY29LV400T",0x80000
Flash = 0xadba,"Hynix HY29LV400B",0x80000
Flash = 0xadd5,"Hynix HY29F080",0x100000
Flash = 0xadd6,"Hynix HY29F800T/AT",0x100000
Flash = 0xad58,"Hynix HY29F800B/AB",0x100000
Flash = 0xadda,"Hynix HY29LV800T",0x100000
Flash = 0xad5b,"Hynix HY29LV800B",0x100000
Flash = 0xb0c9,"Sharp LHF00L02/L06/L07",0x100000
Flash = 0xb0cf,"Sharp LHF00L03/L04/L05",0x100000
Flash = 0x89a2,"Sharp LH28F008SA series",0x100000
Flash = 0x89a6,"Sharp LH28F008SC series",0x100000
Flash = 0xb0ec,"Sharp LH28F008BJxx-PT series",0x100000
Flash = 0xb0ed,"Sharp LH28F008BJxx-PB series",0x100000
Flash = 0xb04b,"Sharp LH28F800BVxx-BTL series",0x100000
Flash = 0xb04c,"Sharp LH28F800BVxx-TV series",0x100000
Flash = 0xb04d,"Sharp LH28F800BVxx-BV series",0x100000
Flash = 0x20b0,"ST M29F002T/NT/BT/BNT",0x40000
Flash = 0x2034,"ST M29F002B/BB",0x40000
Flash = 0x20d3,"ST M29F200BT",0x40000
Flash = 0x20d4,"ST M29F200BB",0x40000
Flash = 0x20e2,"ST M29F040 series",0x80000
Flash = 0x20d5,"ST M29F400T/BT",0x80000
Flash = 0x20d6,"ST M29F400B/BB",0x80000
Flash = 0x20f1,"ST M29F080 series",0x100000
Flash = 0x20ec,"ST M29F800DT",0x100000
Flash = 0x2058,"ST M29F800DB",0x100000
Flash = 0xda45,"Winbond W29C020",0x40000
Flash = 0xdab5,"Winbond W39L020",0x40000
Flash = 0xda0b,"Winbond W49F002U",0x40000
Flash = 0xda8c,"Winbond W49F020",0x40000
Flash = 0xdab0,"Winbond W49V002A",0x40000
Flash = 0xda46,"Winbond W29C040",0x40000
Flash = 0xdab6,"Winbond W39L040",0x80000
Flash = 0xda3d,"Winbond W39V040A",0x80000
Can't find where to put them in the evox.ini file? Look for similar lines, add them next to or instead of he ones already there.
Finally I'd just like to say that using just wire is not really a feasible way of bridging the points (there's nothing wrong in priciple, but getting the wire held in such a way as to make the contact without soldering it? I can't think how... and if it came loose half way through a flash you've totally screwed things up!).
If you absolutely positively don't want to use a soldering iron, you can instead invest in some condictive ink - I've found the best place to find this stuff in the UK is in rear windscreen heater repair kits, I've never actually tried this, but a few people swear by it.
If you're after something a little more down and dirty, you'll find the lead from a pencil is conductive, if you can draw a dark enough line joining the points, you should find it will make the conection for you - this is not made easy by the waxy coating on the surface of the board though, you might want to go at the area VERY carefully with a stanley knife or razor blade to see what you can do about the coating first, even then I'm not sure it's even possible - something to try while the shops are shut though.
But the main thing is, if you are having problems get hold of a multimeter and test - if the multimeter says it's fine you know it's software. Hope this helps.