How to Update Lineage OS on Coolpad Legacy Stock ROM [Android 9.0 Pie]

Today, in this post of FlashFile25, We have mentioned some really easy steps to How to Update Coolpad Legacy Stock ROM and Update automatically over the air (OTA). This instruction has been written in the beginner-friendly language. So if you are someone who does not understand technical terms, then don't worry as we have made it easier for you guys.

The Coolpad Legacy smartphone released in may 2019. It is powered by Octa-Core 1.8 GHz ARM Cortex-A53 with Qualcomm Snapdragon 450 chipset, 3 GB of RAM and 32 GB of internal storage. The Coolpad Legacy runs on Android OS v9.0 pie operating system. It features a 6.36 inches IPS display with 1080 x 2160 px resolution.

To install Lineage OS on Coolpad Legacy, your device should have Bootloader Unlocked and should be running on latest TWRP Recovery. If you have all this, then you are good to try the new Lineage OS on your device. Follow our guide on how to upgrade, but before that. Let’s understand the features of Lineage OS.

What is LineageOS?

LineageOS is based on the Android Open Source Project with extra contributions from many people within the Android community. It can be used without any need to have any Google application installed. Linked below is a package that has come from another Android project that restore the Google parts. LineageOS does still include various hardware-specific code, which is also slowly being open-sourced anyway.

Update automatically over the air (OTA)
After receiving the OTA notification, follow the on-screen prompts to complete the update.

Request update from phone

  • From the Home screen, tap Settings.
  • Tap About phone.
  • Tap System Updates.
  • Tap Check for updates.
  • Follow the on-screen prompts.

Steps to Install Lineage OS on Coolpad Legacy:
Follow this guide and download the TWRP recovery, drivers and things to start with.

Instructions to Install
  1. First of all, You need to enable the developer option and activate the OEM unlock and USB debugging.
  2. Now you need to unlock the bootloader on your Coolpad Legacy.
  3. Once you have unlocked, you must install the latest TWRP Recovery on Coolpad Legacy.
  4. Now the guide will be easy, boot into TWRP Recovery
  5. You need to Decrypt and Re-Encrypt Data Partition on Coolpad Legacy.
  6. You can now take a complete backup of your ROM using without root.
  7. Now you need Wipe System Data on TWRP Recovery
  8. Tap on Install option and look for the downloaded Lineage OS zip file.
  9. Swipe to confirm the flashing.
  10. Now you need to install the Android pie Gapps file. (TWRP -> Install -> Select Gapps zip and swipe to flash)
  11. You can now reboot to enjoy Lineage OS on Coolpad Legacy.
  12. If you want to root you can either try SuperSU root or you can try Magisk root.
That’s it! I hope you have installed the Lineage OS on your device. Leave a comment or feedback down below. Thank you!.


  1. Pretty hard to unlock bootloader when the bootloader itself blocks any commands :^)


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