Download and Install Official Marshmallow Firmware for Oppo F1s

Android Marshmallow, also known as Android M, is the sixth major update to the Android operating system, launched on May 28, 2015. This version introduces several key features, including Doze mode for improved battery life, Google Now on Tap, a new permissions architecture, native support for fingerprint recognition, USB Type-C support, and the ability to move data and apps to a microSD card, among other enhancements.

Important Caution:

Before proceeding with the manual update, ensure your Oppo F1s has at least 80% battery to avoid any interruptions during the flashing process. It’s also crucial to back up your data to prevent any loss. Please note that this guide is specifically for updating the Stock ROM on the Oppo F1s. Proceed with caution, as we are not responsible for any potential issues, including the possibility of bricking your device.

Advantage Of Stock Firmware :

• Unbrick your phone
• To Fix the Bootloop problem
• You can upgrade and Downgrade your phone
• Unroot or Fix Bugs on your phone
• Fix the lag or stutter
• Solve the soft brick on your phone
• To revert back to stock to gain your warranty.

Note :

This is to update Official Stock Android Marshmallow Firmware for Oppo F1s

Pre-Requisites:

• Device Compatibility: This process is specifically designed for the Oppo F1s. It will not work on other devices.
• Battery Level: Ensure your device has at least 70% battery before starting the update.
• Storage Space: Make sure you have at least 1.5GB of free storage space on your device.
• Computer Access: You will need a laptop or PC to perform this update.
• Firmware Requirements: Your device should be running Stock Firmware, not a Custom ROM.
• Data Backup: While this process should not result in data loss, it’s always wise to back up your data to prevent any potential issues.
• Careful Reading: Follow the steps carefully and thoroughly. Skipping steps can lead to problems, and we are not responsible for any damage caused to your device.

Download Files:

Firmware Details	Download Links
A1601EX_11_OTA_001_all_201703281552_wipe	Download

Steps For How To Install Official Marshmallow Firmware for Oppo F1s 

1. Download the  Stock ROM for Oppo F1s from above download files.
2. Now move the downloaded file to root of your internal memory or SD Card (ie not in any sub-folders).
3. In your phone, Go to Files —> All files —> SD Card (if the file is in SD card) –> Select the Zip File and Click on “Update now”  button.
4. Once you click the UPDATE NOW, your device will reboot to install the Android Marshmallow Firmare for Oppo F1s. Reboot will take sometime, So Please do not do other operations or power off your device during the process.
5. Now you device will rebooted and will start the installation process just like the screenshot seen above.
6. After the installation process completes, your device will reboot and remain on the OPPO logo for 3 to 5 minutes. Please do not power off the device as this is normal.
7. After a 3-4 Minute, your phone will boot into the normal Start up guide where you can set up the language, region and Wi-Fi.  Now make sure to check Settings –> Dual SIM and mobile network –> Preferred network type, and make sure you have selected 4G/3G/2G (Auto) as Preferred network type.
8. And by now, congratulations, you have successfully upgraded the software.

We can soon expect Android Nougat update for Oppo F1s from the past leak we found in the image.

I Hope you successfully installed Official Marshmallow Firmware for Oppo F1s by using our guide. In case if any queries or feedbacks, please leave comment below.