Xiaomi "No Signal": Dialer Codes to ADB Logs
How to debug a "No Signal" or "No SIM" error on a Xiaomi phone, from dialer diagnostic codes through ADB logcat filters to EFS partition failures.
Tag: adb
adb shell pm: Managing Android Packages from the Command Line
How to use adb shell pm to list, install, uninstall, disable, and inspect Android packages, including removing bloatware without root.