In this picture you will see complete procedure about how to convert Mini SIM to Micro SIM. There are some following steps:
1. You can Scissor for cutting SIM card
2. Dimension for SIM Card
MINI SIM Card: 25:15 mm
Micro SIM Card: 15:12 mm
3. Marked dimension on Mini SIM card as you can see here.
4. Now cut mini SIM to Micro SIM using scissor as marked before.
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