Oppo A9 2020 Custom Rom Work ● 【POPULAR】

OPPO A9 2020 Custom ROM: Does It Work? (2026 Guide)

The OPPO A9 2020 remains a popular budget phone thanks to its large battery, quad cameras, and Snapdragon 665 chipset. However, OPPO abandoned software updates for this device years ago (last official ColorOS version was Android 11).

  • Boot into recovery (TWRP) immediately after flashing.
  • In recovery: make a full backup (Nandroid).
  • Factory wipe (Dalvik/ART, Cache, Data, System) — required for most ROMs.
  • Flash ROM zip via Install menu, then flash GApps if needed.
  • Optional: flash Magisk for root.
  • Reboot system; first boot may take several minutes.

    • 4. Development Workflow

    Phase 1: Source Code & Kernel

    The Snapdragon 665 requires Kernel 4.14. Oppo released kernel sources for the A9 2020, but they are often outdated or incomplete. oppo a9 2020 custom rom work

    It was a typical Saturday morning for 19-year-old Alex, a tech enthusiast who spent most of his free time exploring the world of Android development. He had recently purchased an Oppo A9 2020, which was a great device, but he wanted more. He wanted to unlock its full potential. OPPO A9 2020 Custom ROM: Does It Work