: Custom ROMs do not include Google services out of the box due to licensing. Go to an open GApps provider repository and select the architecture tag matching your system: ARM64 -> Android 7.1 -> Nano (or Pico) . Step-by-Step Installation Guide
Final note Proceed cautiously: always confirm model and firmware match exactly, keep backups, and prefer official update paths when possible.
Before you begin, download the following:
Download the and the corresponding Google Apps (GApps) package (ARM64, Android 7.1, Pico or Nano variant). Oppo F1s Firmware Download - 7.1.2
Power off and boot into (Hold Power + Volume Down).
Because official Android 7.1.2 Nougat was not deployed globally by Oppo as an OTA update for the A1601, achieving 7.1.2 requires utilizing a custom recovery like TWRP to flash a stable Nougat-based custom ROM (such as LineageOS 14.1 or Resurrection Remix). Phase 1: Installing TWRP Recovery
Firmware, often referred to as a stock ROM (Read-Only Memory) or flash file, is the pre-installed operating system that runs your phone. For the Oppo F1s A1601, this software is officially released by OPPO and is designed to ensure the device operates as intended. A typical firmware package includes the system files, necessary drivers, and, in some cases, flashing tools to help you install the software. : Custom ROMs do not include Google services
If you need help finding specific download links or run into errors during installation, tell me:
If you prefer stability over a newer Android version, the last official firmware (Android 6.0) is available on the Oppo Support Page or via Frendx . How do I want to upgrade my Oppo F1 s?
You will need to unlock the bootloader and install a custom recovery like TWRP . 🛠️ How to Check for Official Updates Before you begin, download the following: Download the
: Download the compatible custom recovery image from the TWRP Official Website.
Verifying successful installation
entirely. Press and hold the simultaneously until the TWRP logo flashes on the screen. Step 2: Wipe the Existing System On the TWRP home menu, tap Wipe . Select Advanced Wipe .
: Official updates for the F1s have long since ceased due to the hardware being unable to support newer, more demanding OS versions.