Don't flash an RUU, if you used gfree to root, as shown in the wiki link you posted, just flash a custom ROM that has polish language from recovery http://forum.xda-developers.com/show....php?t=2348266
Here is a list of ROMs, check the op of any ROM you like to see if it has your language
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You may recall that back in August of last year, we took a look atAir SwiperbyXDA … more
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