Two times I've typed up long comprehensive instructions only to get "Token Expired" when I hit save......
- the micro SIM should have the contacts facing up (visible), and roughly aligning up with the embossed rectangle in the slot.
- put the micro SIM in each slot, starting at "1" and trim off anything sticking out.
- use a sharp blade, scissors, clippers, whatever.
I like to put the SIM in place then turn the jig over and cut it on a flat surface.
And however you use it, please please please, be careful when cutting and avoid injuring yourself/fingers/bits/etc.
Note, this was created using size information from random websites and measurements of SIMs I had on hand. I didn't use the official standard since I didn't find a free copy. So results may deviate from the official sizes.
If your SIM breaks while you use this device to trim it, that is unfortunately your problem. However, if this happens, please let me know, perhaps it will lead some to improvements.