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Oppo F9 CPH1881 Flash File

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Full Specifications

Oppo F9 CPH1881 Flash File

Description

Official stock firmware flash file for Oppo F9 CPH1881 from RomWala. Fix bootloop, hang on logo, dead issues, FRP lock, pattern unlock, and software errors. Based on Android 9/10 with ColorOS 9/10. Flash using Download Tool with authorized account. Direct download links below.

Info Flash File

Firmware Version	CPH1881: F.18 / F.17 / A.16
Package Name	CPH1881EX-11-F.18-210406-cc65c34e
File Size	~5.0 GB to 6.0 GB (extracted)
System	Android 9/10 (ColorOS 9/10)
Security Patch Level	2019-05-01 to 2021-04-01
Release Date	May 2019 - April 2021
Flash Tools	Download Tool, SP Flash Tool, MTK Flash Tool (Authorized account required)
Compression	ZIP/RAR
Firmware Type	Stock Firmware
Purpose	Fix bootloop, Hang on logo, Dead issue fix, FRP bypass, Pattern unlock, Software errors, Upgrade/Downgrade

Device Info

Device Name	Oppo F9
Brand	Oppo
Model	CPH1881
Other Names	CPH1881 (Global)
Year Released	2018
Network	2G, 3G, 4G
SIM	Dual SIM (Nano-SIM)
Dimensions	~156.7 x 74.0 x 8.0 mm
Weight	~185 grams
Build	Glass front, Plastic back, Plastic frame
Display	6.3 inches LCD, 60Hz, 1080 x 2340 pixels
Chipset	MediaTek MT6771 Helio P60 (12 nm)
CPU	Octa-core (4x2.0 GHz Cortex-A73 & 4x2.0 GHz Cortex-A53)
GPU	Mali-G72 MP3
RAM Options	4GB / 6GB LPDDR4X
Storage Options	64GB / 128GB eMMC 5.1
Expandable Storage	Dedicated SD card slot
Battery Capacity	3500mAh non-removable
Charging Support	Fast charging
OS	Android 9/10 (ColorOS 9/10)
Rear Camera	16MP (f/1.8) + 2MP (f/2.4)
Front Camera	16MP (f/2.0)
Fingerprint	Rear-mounted
Features	4G connectivity, 60Hz display, SD card support
Network Support	4G LTE, Dual SIM
Firmware Type	Stock Firmware

Available Versions

Version F.18	File Name: CPH1881EX_11_F.18_210406_cc65c34e Package Name: CPH1881EX-11-F.18-210406-cc65c34e Region: EX OS: Android 10 (ColorOS 10)
Version F.17	File Name: CPH1881EX_11_F.17_210126_cc65c34e Package Name: CPH1881EX-11-F.17-210126-cc65c34e Region: EX OS: Android 10 (ColorOS 10)
Version A.16	File Name: CPH1881_11_A.16_190523_dc96092d Package Name: CPH1881-11-A.16-190523-dc96092d Region: Export OS: Android 9 (ColorOS 9)

Pre-requisites

Requirement 1	Battery should be charged up to 70% minimum
Requirement 2	Make sure you have Oppo USB OG Cable
Requirement 3	Download and install Download Tool / SP Flash Tool on PC
Requirement 4	Download and install MediaTek USB drivers on your computer
Requirement 5	Take a complete backup before flashing
Requirement 6	Knowledge of flashing (professionals recommended)
Requirement 7	⚠️ Authorized Oppo service account required for flashing

Advantages of Stock ROM

Advantage 1	Flash Stock ROM to unbrick your Oppo F9
Advantage 2	Flash Stock ROM to fix the boot loop problem
Advantage 3	Upgrade And Downgrade Oppo F9
Advantage 4	Unroot and fix bugs on your phone
Advantage 5	To fix the lag or Stutter on your Oppo F9
Advantage 6	By flashing Stock ROM, you can solve software problems
Advantage 7	Revert back to Stock to gain your warranty

How to Flash

Step 1	Download the firmware & extract it to get .ofp file
Step 2	Download and install MediaTek drivers on your computer. If already installed, skip this step
Step 3	Extract and open Download Tool / SP Flash Tool on your PC
Step 4	Login with authorized Oppo service account (required)
Step 5	Load the firmware file from the extracted folder
Step 6	Click on Start All / Flash button in the tool
Step 7	Power off the device completely
Step 8	Press and hold both Volume Up + Volume Down buttons
Step 9	Connect your device to PC via USB cable while holding buttons
Step 10	Wait for the tool to detect and flash your device automatically
Step 11	Wait till process completed - Device Ready - Done

Important Notes

Note 1	⚠️ Do flash or unlock at your risk - we are not responsible if you made any mistake and device got bricked
Note 2	Read all flashing instructions carefully before doing flash or unlock
Note 3	Check device version by dial code *#899# in emergency dial
Note 4	If device not detected, reinstall MediaTek USB drivers
Note 5	Use only on Oppo F9 CPH1881
Note 6	All data will be erased - backup important files before flashing
Note 7	Do not disconnect USB cable during flashing process
Note 8	⚠️ Authorized Oppo service account required to flash this device

Flashing Guide

Requirements	Windows PC, USB Data Cable, 70% battery, MediaTek USB Drivers, Download Tool / SP Flash Tool, Authorized Oppo account
How to Flash	1. Install drivers. 2. Login with authorized account. 3. Load firmware in Download Tool. 4. Click Start All. 5. Power off device. 6. Press Volume Up + Down. 7. Connect to PC. 8. Wait for completion.
Warnings	Use only on Oppo F9 CPH1881. Do not disconnect during flashing. All data erased. Operations at your own risk.
Troubleshooting	Device not detected - reinstall MediaTek drivers. Auth error - use authorized account. Flash error - use latest tool version.