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Sony Xperia XZ Premium G8141:

 

User guide:  userguide_EN_G8141_1_Android7.1.1.pdf   18.18MB   2 downloads

 

??????????? ?? ????????????:  userguide_RU_G8141_1_Android7.1.1.pdf   18.23MB   1 downloads

 

Instrukcja obsługi:  userguide_PL_G8141_1_Android7.1.1.pdf   18.23MB   1 downloads

 

 

Sony Xperia XZ Premium Dual G8142:

 

User guide:  userguide_EN_G8142_1_Android7.1.1.pdf   18.23MB   3 downloads

 

??????????? ?? ????????????:  userguide_RU_G8142_1_Android7.1.1.pdf   18.28MB   1 downloads

 

Instrukcja obsługi:  userguide_PL_G8142_1_Android7.1.1.pdf   18.29MB   7 downloads

My device has the problem of disconnecting and disconnecting the dual antenna for a few seconds. I've upgraded the device and the problem remains. The attached image from the network settings section is exactly at the time of disconnection. Please help me