Which SIM slot?

[Milou]

Hello, I just got a Xperia Z5 Dual Phone, and don't know which slim slot should I use to have 4G connection? Could anyone help? Thanks.

[Qatrium]

Hello @Milou

Any SIM slot would work for 4G connection, you can choose which SIM will be your primary data SIM from Settings -> Dual SIM settings, and furthermore, you can set your preferred network speed to 4G from Settings -> More -> Mobile networks.

[Milou]

Thanks so much for your help