The adapter is recommended only very limited. The Triple-Sim function itself is very good. The problem is to activate it. The Micro adapter which must be filed in the Micro-recording of the phone, sometimes works only after 20-40 tests, that is, he gets no contact. If it went well once everything worked fine until ... until the battery cover is removed, eg to change the memory card. By slightly moving the SimAdapter then loses again the contact and fumbling starts again from the beginning. I would not buy my SimAdapter again.