You do not really need to root your device but this app must be
placed in /system/priv-app/ or /system/app/ for old OSes. It can be
easily achieved by using a third party recovery. You can also use
root explorer or some other file managers to move this app into the
required folder on a rooted device. Otherwise it won't work.
So for your convenience the APK can be directly downloaded at https://github.com/Hzj-jie/android-mobile-network-mode/raw/master/android-mobile-network-mode-release.apk.
This app installs three items in app menu "Enable 2G" "Enable 3G" and "Enable 4G". Each one does its job and quit. i.e. Enable 2G 3G or 4G. Please refer to the first screenshot.
I am using this with https://play.google.com/store/apps/details?id=org.gemini.init and change network preference according to the location. Ex.
https://github.com/Hzj-jie/android-init/blob/master/sample/auto-network.sh
You can also manually set the the preferred network type by using an intent
mobile-network-mode://org.gemini.mobile-network-mode/#{TYPE}
The type can be found in https://android.googlesource.com/platform/frameworks/base/+/master/telephony/java/com/android/internal/telephony/RILConstants.java#136.
So for your convenience the APK can be directly downloaded at https://github.com/Hzj-jie/android-mobile-network-mode/raw/master/android-mobile-network-mode-release.apk.
This app installs three items in app menu "Enable 2G" "Enable 3G" and "Enable 4G". Each one does its job and quit. i.e. Enable 2G 3G or 4G. Please refer to the first screenshot.
I am using this with https://play.google.com/store/apps/details?id=org.gemini.init and change network preference according to the location. Ex.
https://github.com/Hzj-jie/android-init/blob/master/sample/auto-network.sh
You can also manually set the the preferred network type by using an intent
mobile-network-mode://org.gemini.mobile-network-mode/#{TYPE}
The type can be found in https://android.googlesource.com/platform/frameworks/base/+/master/telephony/java/com/android/internal/telephony/RILConstants.java#136.
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