The things you should do depends on that - what kind of phone your mate own - is it branded ( Vodafone , Orange, O2, blablabla ) or non-branded ( "Generic" )).
If phone is branded and warranty status does not matter ( its already ended or phone has not got warranty ), then flash with generic firmware.
To do this, you must follow XS++ or SETool2 Lite flashing guide. Everything else should be written there.
P.S. If you still does not understand, where to get required files, you must have posted more than 10 NON-Spam posts and registered for more than 3 days here .. after gaining access to Download section, search for necessary files ;)
If you don't get them, Google is all yours.
P.P.S. Actually I should no have had to write half of this stuff ..., but usually people are too lazy / dumb for some thinking or using logic .. :(




