Are the Xiaomi and Redmi series phones easy to disconnect during use?
This happens because the Shenyin mode that comes with the MIUI system prevents data transmission from causing dropped calls.
To solve this issue, go to [Settings] -> [Power and Performance] -> [Shenny Mode], and select Close, as shown below.
For MIUI 8.0 or above, go to [Settings] -> [Power and Performance] -> [Shen] mode, and select Close, as shown below.
For MIUI 9.0, go to [Settings] -> [Battery and Performance] -> [Application Configuration], then find the TC in the application, and select no limit, as shown below.
