how do you add something to sys.txt in igo for android?

In Israel we need to add this lines to sys.txt file:

[route]
allow_special = 1

i have tryed adding it (by adding ".zip" at the end of the "apk" file, duoble click on the file, finding sys.txt file, editing it, saving getting out and winrar updated the file and deleting the ".zip" from the file name) but it did not work.

what did i do wrong?

@miomoshe

I think your question would be better served in the Android section even though you're asking an iGO question. I am moving it there.

Sys.txt should be on your sd card or main memory section in phone.
Use an Android explorer program and go to the igo directory. In there you will find the sys.txt.
Modify and save.
You may have to reinstall the .apk again afterwards.

Bazzle