A S4 that I bought to replace my disaster S3 blocked Bouygues and whose désimlockage code received Bouygues is still not working. For 6 months, the only Bouygues messages are always the same: "we will take care of" I'll have to contact the ARCEP, but without much confidence. Moreover, big disappointment, I used to use my S3 Modem to connect my computer when I was traveling in France and with the S4, ..... it no longer works. And it seems that this is normal. If only I had a response from Samsung!