Oppo A3 CPH1837 Flash File
Download official Oppo A3 CPH1837 stock firmware from RomWala. Fix bootloop, hang on logo, dead issues, FRP lock, pattern unlock, and software errors. Based on Android 8/9/10/11 with ColorOS 8/9/10/11...
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Full Specifications
Oppo A3 CPH1837 Flash File
| Description | Official stock firmware flash file for Oppo A3 CPH1837 from RomWala. Fix bootloop, hang on logo, dead issues, FRP lock, pattern unlock, and software errors. Based on Android 8/9/10/11 with ColorOS 8/9/10/11. Flash using Download Tool with authorized account. Direct download link below. |
Info Flash File
| Firmware Version | CPH1837EX_11_A.39_191014_12a881bc |
| Package Name | CPH1837EX-11-A.39-191014-12a881bc |
| File Size | ~4.5 GB to 5.5 GB (extracted) |
| System | Android 8/9/10/11 (ColorOS 8/9/10/11) |
| Security Patch Level | 2019-10-01 |
| Release Date | October 2019 |
| 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 A3 |
| Brand | Oppo |
| Model | CPH1837 |
| Other Names | CPH1837 (Global) |
| Year Released | 2018 |
| Network | 2G, 3G, 4G |
| SIM | Dual SIM (Nano-SIM) |
| Dimensions | ~156.5 x 75.6 x 7.9 mm |
| Weight | ~170 grams |
| Build | Glass front, Plastic back, Plastic frame |
| Display | 6.2 inches LCD, 60Hz, 1080 x 2280 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 | 3400mAh non-removable |
| Charging Support | Fast charging |
| OS | Android 8/9/10/11 (ColorOS 8/9/10/11) |
| Rear Camera | 16MP (f/1.8) + 2MP (f/2.4) |
| Front Camera | 8MP (f/2.4) |
| Fingerprint | Rear-mounted |
| Features | 4G connectivity, 60Hz display, SD card support |
| Network Support | 4G LTE, Dual SIM |
| Firmware Type | Stock Firmware |
Available Versions
| Export Version | File Name: CPH1837EX_11_A.39_191014_12a881bc Package Name: CPH1837EX-11-A.39-191014-12a881bc Region: EX OS: Android 8/9/10/11 (ColorOS 8/9/10/11) |
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 A3 |
| Advantage 2 | Flash Stock ROM to fix the boot loop problem |
| Advantage 3 | Upgrade And Downgrade Oppo A3 |
| Advantage 4 | Unroot and fix bugs on your phone |
| Advantage 5 | To fix the lag or Stutter on your Oppo A3 |
| 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 A3 CPH1837 |
| 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 A3 CPH1837. 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. |
Oppo A3 CPH1837 Flash File - Description
Download official Oppo A3 CPH1837 stock firmware from RomWala. Fix bootloop, hang on logo, dead issues, FRP lock, pattern unlock, and software errors. Based on Android 8/9/10/11 with ColorOS 8/9/10/11. Flash using Download Tool with authorized account. Direct download link below.
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Tags:
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Keywords:
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Tags:
#OppoA3 #CPH1837 #FlashFile #OppoFirmware #StockROM #Unbrick #ColorOS8 #ColorOS9 #ColorOS10 #ColorOS11 #RomWala
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