Liberating Mobiles

Android(Stock ROM)

Introduction

An Android System is very similar to Debian

General Procedure

1. Pre-requisites

  1. A system with ADB and Fastboot installed.
  2. A data compatible USB cable [Beware of cables that only support power!] for the device you want to liberate.

2. Search for custom Recovery for your device.
3. Search for a supported custom ROM for your device in device specific forums on forum.xda-developers.com.
4. Unlocking phone bootloader

  1. Go to Settings
  2. Click on About Phone
  3. Tap 5 times on the build information(number). You will get a message saying "Developer settings enabled."
  4. Now go back to Settings and go to Developer Options(mostly will be in System options/ you can search for it)
  5. Enable OEM unlocking and USB debugging
  6. Now, Connect your phone to the system. There will be a popup on the mobile asking for USB debugging. Click Allow.
  7. Open terminal in system and enter 
                                       adb reboot fastboot
  8. Now, your mobile will go into a fastboot mode. Now, In your system terminal, run the following command  
                                       fastboot oem unlock
  Note: This method will not work for all devices. Some devices need additional steps to accomplish this step. Please refer next sections for device specific steps to unlock bootloader.

5. Flash custom ROM 6.

References

1. https://forum.xda-developers.com/t/info-android-device-partitions-and-filesystems.3586565/