Firmware Oppo F1s A1601 Upd

: The A1601 uses a MediaTek (MTK) processor, which dictates the specific tools required for manual flashing, such as the SP Flash Tool Types of Firmware Updates Over-the-Air (OTA) Updates : The safest method, performed via Settings > System Updates

Are you trying to like a bootloop, or are you looking to upgrade the Android version ?

Downgrading firmware can be risky and may void your warranty. If you still want to downgrade:

To this day, old repair shops in Ho Chi Minh City and Jakarta still whisper about the “A1601 firmware unlock” — not for root, not for custom ROMs, but for the forbidden 20W charge that Oppo didn’t want you to have.

Uncheck the box (this prevents permanent bricking if the version is wrong). Click Download .

Launched with Android 5.1 Lollipop (ColorOS 3.0).

: The A1601 uses a MediaTek (MTK) processor, which dictates the specific tools required for manual flashing, such as the SP Flash Tool Types of Firmware Updates Over-the-Air (OTA) Updates : The safest method, performed via Settings > System Updates

Are you trying to like a bootloop, or are you looking to upgrade the Android version ?

Downgrading firmware can be risky and may void your warranty. If you still want to downgrade:

To this day, old repair shops in Ho Chi Minh City and Jakarta still whisper about the “A1601 firmware unlock” — not for root, not for custom ROMs, but for the forbidden 20W charge that Oppo didn’t want you to have.

Uncheck the box (this prevents permanent bricking if the version is wrong). Click Download .

Launched with Android 5.1 Lollipop (ColorOS 3.0).