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Android how to uninstall the built-in root system App and modify the NTP time calibration, many novices are not very clear about this, in order to help you solve this problem, the following editor will explain in detail for you, people with this need can come to learn, I hope you can get something.

1: get all App package names

Adb shell pm list packages-- user 0

2: uninstall the specified App package name

Adb shell pm uninstall-k-- user 0 com.bbk.launcher2

Revocation

Adb shell pm install-existing-- user 0 com.bbk.launcher2

You can also try to deactivate

Adb shell pm disable-user com.bbk.launcher2

Revocation

Adb shell pm enable com.bbk.launcher2

In addition, you can restrict background running through the adb command.

Adb shell cmd appops set packageName RUN_IN_BACKGROUND ignore

Revocation

Adb shell cmd appops set packageName RUN_IN_BACKGROUND allow

Get NTP time Calibration Server

Adb shell settings get global ntp_server

Modify NTP time calibration server (restart after command execution)

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