Here is another way to unlock Micromax C100 no need to infinity or combo

here is flasher
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here is flash file for unlock your handset
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just open your flasher
1.select com
2. select flash file and press OK
3. after selecting flash file see in flash file folder unlock for copy
just copy "all.mbn" from unlock for copy folder now past and replace
"all.mbn" in flasher folder .
4. now press start

after completing flash your handset unlocked.

no need any tool .

THanks bro........