Official OPPO F9 (CPH1881/CPH1881EX) Firmware Files Download – Latest Stock ROMs & Bug Fixes

[Daniel]

The OPPO F9 (CPH1881/CPH1881EX) is a stylish budget smartphone known for strong battery life and smart charging, but users have reported common problems including bootloop, dead/hang-on-logo, FRP lock, and failed updates. Flashing the latest official firmware files can unbrick and restore your device, fix touch and boot issues, and help bypass screen locks—especially where region/variant matters. Always use files matching your exact model and proceed cautiously.

Warning:

Flashing incorrect, mismatched, or corrupted firmware will likely brick your OPPO F9, erase all user data, and permanently damage key functions. Confirm your exact device code before downloading or flashing. Ask on the forum if unsure.

OPPO F9 Firmware Details​

Device	OPPO F9
Model(s)	CPH1881 / CPH1881EX
Chipset	MediaTek Helio P60
Android Version	8.1 (Oreo), 9.0 (Pie) via updates
RAM/Storage	4GB/64GB, 6GB/128GB
Firmware Files Available	F.17, A.16, A.11 (EX and region variants)
File Sizes	4.72GB – 5.73GB
File Types	ZIP / RAR / 7Z
Flashing Tool	SP Flash Tool (MediaTek), MSM Download Tool (QFIL rarely used)

Download Official Firmware for OPPO F9 (CPH1881/EX)​

Filename: CPH1881EX_11_F.17_210126_cc65c34e.7z

Size: 5.09GB

Build Date: 2021-01-26

Build Version: F.17 (EX)

Android Version: Pie

Download Link: MediaFire
Changelog: No verified details public. Used to restore hang/dead boot, unlock FRP, and fix failed update as per user reports.

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Filename: Oppo_F9_CPH1881_11_A.11_181115.zip

Size: 5GB

Build Date: 2018-11-15

Build Version: A.11

Android Version: Oreo

Download Link: Google Drive

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Filename: CPH1881EX_11_F.17_210126_cc65c34e.zip

Size: 5.73GB

Build Date: 2021-01-26

Build Version: F.17 (EX)

Android Version: Pie

Download Link: MediaFire

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Filename: CPH1881_11_A.16_190523_dc96092d.rar

Size: 4.72GB

Build Date: 2019-05-23

Build Version: A.16

Android Version: Pie

Download Link: MediaFire

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The Requirements​

• OPPO F9 (CPH1881 or CPH1881EX variant)
• Downloaded firmware file exactly matching your phone
• Windows PC/laptop (6GB+ free)
• SP Flash Tool (MediaTek) and OPPO USB drivers
• USB cable, battery above 70%
• Backup all user data before flashing

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How to Flash the Firmware​

1. Download and extract the firmware package to your desktop
2. Install OPPO drivers and SP Flash Tool on PC
3. Boot your phone to Download mode (usually Power+VolUp)
4. Connect the phone to the PC and launch the flash tool
5. Select the correct firmware files and start flashing, then wait for the reboot

For a complete flashing guide with images and video, see this step-by-step MTK/SP Flash Tool tutorial

More Flashing Guides:​

MediaTek (SP Flash Tool): Guide Link

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Disclaimer: All flashing is at your own risk. We are not responsible for data loss or phone damage. For help, comment below.