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Je suis en Chine mon Z5 ne peut pas se connecter via des données mobiles.
I am in China my Z5 can not connect via mobile data. Need help
Hi @Cherchell17
Your post has been translated as this is an English only forum, please remember all posts/replies must be in English 
Have you tried downloading internet and MMS settings?
Go to settings > more > interment settings. Once it has downloaded and installed the settings, restart your handset and see if mobile data will load.
Let me know 