Bought awaiting repair for my micro sim phone broke down and precedents that I could use had normal sim. I do not venture to use the adapter in a slot machine. I have a device that uses a SIM card slipped into a removable metal and accessible location in the battery compartment in case (Nokia E65). Unfortunately this is not the case of current smartphones. But I think it depends essentiellemnt of cutting the micro sim which must be as precise as possible to match the standard, it must play 1/10 mm. Then the micro sim is click and is keyed by the adapter. If there is such a small game as it is, this causes setbacks, the sim no longer holds, dislocates the Visionaer and everything remains stuck in the phone's housing. If quick delivery time.