If your phone boots up but lacks Google services, you skipped flashing the GApps package. Boot back into TWRP, select , flash the ARM64 Android 7.1 GApps zip, and reboot your device.
If you are looking at a 7.1.2 "helpful feature" download from a third-party site: Risk of Bricking:
Tap on the file and swipe the slider to begin the installation process. Oppo F1s Firmware Download - 7.1.2
: If you need to revert to factory settings, grab the flashing software from the SP Flash Tool Archive. Step-by-Step Installation Guide
We are not responsible for any damage or issues that may arise during the firmware update process. Make sure to backup your important data and follow the on-screen instructions carefully to avoid any issues. If your phone boots up but lacks Google
If you need to unbrick your device or return to the official stable software, use the official stock flash files.
Note: Direct links expire frequently. Search "Oppo F1s A1601EX_11_A.30" for active mirrors. : If you need to revert to factory
Stock ROM flash / unbrick using SP Flash Tool (MediaTek variants)
Many essential modern apps require a minimum of Android 7.0 or higher to download from the Google Play Store .