After my Samsung S3 GT-i9300 had always lost the connection to the SIM card and wanted a restart, I read on the Internet that the exchange of cards is to provide the reader a remedy. Other providers offer a different platform, the part to cheaper. However, I wanted to be supplied as quickly as possible and stayed with a shipping through Amazon. Unfortunately, it took but 4 business days until I get delivery ... too bad. When changing the card reader I have the parts next to each other and yet kept to notice a difference. On the bottom is with my S3 card reader nor a ridge present extending slot between SIM and MicroSD. On the logic board even has a line which identifies the edition of this ridge. The appointed card reader did not have this bridge.
Unfortunately, the exchange has not had the desired effect, the same error persists. Even the Factory Reset and a Wipe was unsuccessful. Whether this card reader is also defective, or where the problem is different ... I'll probably not find out.