Custom ROMs run faster than stock ColorOS 3.0 but break features like VoLTE, fingerprint gestures, and the expert camera mode. Conclusion: Accepting the End of the Road The Oppo F1s was a fantastic phone for its time, but its update journey ended in 2019 with Android 5.1 and ColorOS 3.0. No amount of checking “System Update” in 2025 will magically produce Android 6.0 or a new security patch.
Published: October 2025 Category: Firmware Updates, Legacy Devices Oppo F1s Update Version
Unlocked bootloader, custom recovery (TWRP), and willingness to lose Oppo’s camera optimization (selfies will degrade). Custom ROMs run faster than stock ColorOS 3