Flash a custom recovery like TWRP to enable the installation of custom zip files.
The Oppo F1s (model number A1601) launched with Android 5.1 Lollipop. It received only one major platform update, which was to Android 6.0 Marshmallow (also known as ColorOS 3.0). Many users have reported that even this official update can sometimes introduce problems, such as issues with the default messaging app.
To get Android 11, you would need to use a (like LineageOS or Pixel Experience), which is an advanced process that carries risks, such as voiding your warranty or "bricking" your phone. Step 1: Check for Final Official Updates
OPPO discontinued system updates for the F1s years ago. The ultimate official support metrics include: Android 5.1 Lollipop (ColorOS 3.0) Final Official OS: Android 6.0 Marshmallow Current Status: End-of-Life (EOL) oppo f1s android 11 update download
If the custom ROM is unusable, consider these alternatives to speed up your device on the existing OS:
None of these are perfect. The OPPO F1s lacks official Android 11 vendor support, so you will face bugs like broken VoLTE (no voice calls over 4G) and erratic GPS.
Oppo F1s Android 11 Update: Everything You Need to Know The Oppo F1s, famously known as the "Selfie Expert," was a massive hit when it launched in 2016. Driven by a MediaTek MT6750 processor and originally running Android 5.1 Lollipop (with ColorOS 3.0), the device officially maxed out its software lifecycle years ago. Flash a custom recovery like TWRP to enable
Use ADB/Fastboot to flash TWRP recovery .
If you're still interested in trying Android 11 on your OPPO F1S, here's a step-by-step guide:
Go to "Wipe" -> "Advanced Wipe" and select: Dalvik/ART Cache , System , Data , Cache . Many users have reported that even this official
A tool like TWRP (Team Win Recovery Project) compiled specifically for the Oppo F1s (A1601). Step-by-Step Guide to Installing Android 11 Custom ROM
Official updates for the Go to product viewer dialog for this item.