i nedd help 2g/3g (signal) not working

Oct 4, 2012
ok guys i need help. I ported miuiv4 2.9.21 from p500 to p690 worked all from cm9 but not working 2g and 3g i replace file system/lib/libril-qc-1.so and 2g and 3g not working then i replace md5 in updater script and 2g/3g not working please help please :(
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