- Aug 3, 2025
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The firmware files below cover the Huawei Y3 2018 model family, including CAG-L02, CAG-L03, CAG-L22, and CAG-L23 variants, which public device references list under the Y3 2018 name with a MediaTek MT6737M platform and Android Go software.
Some of the files you supplied are also branded as Huawei Y5 Lite 2018 for CAG-L03 and CAG-L23, and a public LATAM device reference identifies CAG-L03 as a Y5 Lite 2018 LTE variant, so the marketing name appears to vary by region even though the exact model number remains the safest way to match firmware.
These packages are suitable for legitimate repair, software restoration, failed update recovery, and return-to-stock maintenance. Public user feedback for the Y3 2018 includes lag, apps closing by themselves, and general low-performance complaints, which makes stock firmware restoration relevant when the phone becomes unstable or corrupted.
Choose only the firmware that matches your exact CAG-Lxx model and region. Do not rely on the marketing name alone, because some markets appear to use Y3 2018 while others use Y5 Lite 2018 for closely related CAG variants.
For the complete Huawei flashing workflow with the proper dload process, refer to this full guide: How to Flash Huawei Firmware via dload and eRecovery.
Some of the files you supplied are also branded as Huawei Y5 Lite 2018 for CAG-L03 and CAG-L23, and a public LATAM device reference identifies CAG-L03 as a Y5 Lite 2018 LTE variant, so the marketing name appears to vary by region even though the exact model number remains the safest way to match firmware.
These packages are suitable for legitimate repair, software restoration, failed update recovery, and return-to-stock maintenance. Public user feedback for the Y3 2018 includes lag, apps closing by themselves, and general low-performance complaints, which makes stock firmware restoration relevant when the phone becomes unstable or corrupted.
Huawei Y3 2018 / Y5 Lite 2018 Firmware Details
| Item | Details |
|---|---|
| Device family | Huawei Y3 2018 / market-dependent Y5 Lite 2018 variants in the CAG series. |
| Models in this post | CAG-L02, CAG-L03, CAG-L22, and CAG-L23, based on the filenames you supplied and public model references. |
| Chipset | MediaTek MT6737M / MT6737 family references appear across public specs for these models. |
| Software platform | Android Go-based firmware family for entry-level Huawei CAG devices. Public Y3 2018 specs list Android 8.0 Oreo Go Edition, while some supplied firmware filenames indicate Android 8.1.0 packages, which suggests later maintenance builds or region-specific software revisions. |
| Typical memory class | 1GB RAM and 8GB storage are the most consistently published specs for the Y3 2018 family. |
| Display class | 5.0-inch entry-level display category. |
| Battery | 2280 mAh battery is the most commonly published capacity for these models. |
| Firmware purpose | Stock firmware and board software packages for repair, recovery, failed update restoration, and software reinstallation. |
| Important compatibility rule | Always match the exact CAG-Lxx model and regional code before flashing, especially where the same hardware family is marketed under different names. |
Warning: Flashing the wrong Huawei Y3 2018 or Y5 Lite 2018 firmware can cause boot failure, update errors, missing network features, or unstable system behavior. Always verify the exact CAG-Lxx model, build branch, and market code before installing any file.
In legitimate service or repair environments, flashing stock firmware may reset certain system states. Always service only devices you own or are authorized to repair, and follow local laws.
All firmware files are the property of their respective owners. They are provided for repair, recovery, and educational documentation purposes only. If you are the copyright holder and want a file removed, please contact us.
In legitimate service or repair environments, flashing stock firmware may reset certain system states. Always service only devices you own or are authorized to repair, and follow local laws.
All firmware files are the property of their respective owners. They are provided for repair, recovery, and educational documentation purposes only. If you are the copyright holder and want a file removed, please contact us.
Verified Research Notes
- Public spec references identify the Huawei Y3 2018 as an entry-level Android Go phone with CAG-L02, CAG-L22, CAG-L23, and CAG-L03 model codes.
- Public references also show that at least the CAG-L03 can appear under the Huawei Y5 Lite 2018 name in Latin American markets, so model number is more reliable than marketing name when selecting firmware.
- The Y3 2018 family is publicly associated with the MediaTek MT6737M platform, 1GB RAM, 8GB storage, and a 5-inch display.
- Public user feedback on the Huawei Y3 2018 includes complaints about lag and apps closing by themselves, which are relevant symptoms when deciding whether to reinstall stock firmware.
- Reliable official per-build changelogs were not found during research for the exact B048, B126, B127, B129, B144, or B152 packages listed here, so this article does not assign unverified fixes to any individual build.
- Because several filenames identify Android 8.1.0 while public launch specs for the Y3 2018 mention Android 8.0 Go Edition, these packages should be treated as version-specific maintenance firmware that must be matched carefully to the exact model and region.
Download Firmware for Huawei Y3 2018 / Y5 Lite 2018
Choose only the firmware that matches your exact CAG-Lxx model and region. Do not rely on the marketing name alone, because some markets appear to use Y3 2018 while others use Y5 Lite 2018 for closely related CAG variants.
CAG-L22 Firmware Files
Filename: CAG-L22_CairoGO-L22C461B152_Firmware_8.1.0_r1_05015ANC.rar
File size: 1.50GB
Model: CAG-L22
Android version: 8.1.0
Build: C461B152
Package type: Full firmware archive
Notes: Use only for a matching CAG-L22 device. No verified public changelog was found for build B152, so treat this as a stock recovery package rather than a documented feature update.
Download: Google Drive
File size: 1.50GB
Model: CAG-L22
Android version: 8.1.0
Build: C461B152
Package type: Full firmware archive
Notes: Use only for a matching CAG-L22 device. No verified public changelog was found for build B152, so treat this as a stock recovery package rather than a documented feature update.
Download: Google Drive
Filename: Huawei_Y3_2018_CAG-L22_MT6737M_L22C185B144.zip
File size: 821MB
Model: CAG-L22
Chipset: MT6737M
Build: C185B144
Notes: Standard stock firmware package for a matching CAG-L22 branch.
Download: Google Drive
File size: 821MB
Model: CAG-L22
Chipset: MT6737M
Build: C185B144
Notes: Standard stock firmware package for a matching CAG-L22 branch.
Download: Google Drive
Filename: Huawei_Y3_2018_CAG-L22_MT6737M_L22C185B144_08212018.zip
File size: 821MB
Model: CAG-L22
Chipset: MT6737M
Build: C185B144
Notes: Alternate archive of the same C185B144 build. Compare package structure and source preference before choosing between duplicates.
Download: Google Drive
File size: 821MB
Model: CAG-L22
Chipset: MT6737M
Build: C185B144
Notes: Alternate archive of the same C185B144 build. Compare package structure and source preference before choosing between duplicates.
Download: Google Drive
CAG-L02 Firmware Files
Filename: Huawei_Y3_2018_CAG-L02_MT6737M_B048_170428.zip
File size: 1.15GB
Model: CAG-L02
Chipset: MT6737M
Build: B048
Notes: Stock firmware package for the CAG-L02 branch. No verified public changelog was found for B048.
Download: Google Drive
File size: 1.15GB
Model: CAG-L02
Chipset: MT6737M
Build: B048
Notes: Stock firmware package for the CAG-L02 branch. No verified public changelog was found for B048.
Download: Google Drive
Filename: Huawei_Y3_2018_CAG-L02_CairoGO-L22-B048_MT6737M_Board_Software_General_Android_8.1_05022KSE.zip
File size: 1.15GB
Model: CAG-L02
Android version: 8.1
Build: B048
Package type: Board software / general package
Notes: This appears to be a board software package rather than a standard consumer-named full firmware file, so it is best reserved for technical service recovery where the exact package role is already understood.
Download: Google Drive
File size: 1.15GB
Model: CAG-L02
Android version: 8.1
Build: B048
Package type: Board software / general package
Notes: This appears to be a board software package rather than a standard consumer-named full firmware file, so it is best reserved for technical service recovery where the exact package role is already understood.
Download: Google Drive
CAG-L23 Firmware Files
Filename: Huawei_Y5_Lite_2018_CAG-L23_MT6737M_L23C469B126_09182018.zip
File size: 822MB
Model: CAG-L23
Market name in filename: Huawei Y5 Lite 2018
Chipset: MT6737M
Build: C469B126
Notes: Stock firmware for the CAG-L23 branch as marketed in this archive under the Y5 Lite 2018 name. Public references show that some CAG variants use different names by market, so the model number should be your main match point.
Download: Google Drive
File size: 822MB
Model: CAG-L23
Market name in filename: Huawei Y5 Lite 2018
Chipset: MT6737M
Build: C469B126
Notes: Stock firmware for the CAG-L23 branch as marketed in this archive under the Y5 Lite 2018 name. Public references show that some CAG variants use different names by market, so the model number should be your main match point.
Download: Google Drive
Filename: CAG-L23_CairoGO-L23C469B129CUSTC469D001_Firmware_8.1.0_r1_05015CNR.rar
File size: 1.6GB
Model: CAG-L23
Android version: 8.1.0
Build: C469B129 / CUSTC469D001
Package type: Full firmware archive
Notes: Later CAG-L23 stock package than B126 based on the filename. No verified public changelog was found for B129, so only the build identity can be stated confidently.
Download: Google Drive
File size: 1.6GB
Model: CAG-L23
Android version: 8.1.0
Build: C469B129 / CUSTC469D001
Package type: Full firmware archive
Notes: Later CAG-L23 stock package than B126 based on the filename. No verified public changelog was found for B129, so only the build identity can be stated confidently.
Download: Google Drive
Filename: Huawei_Y5_Lite_2018_CAG-L23_MT6737M_L23C469B126.zip
File size: 822MB
Model: CAG-L23
Market name in filename: Huawei Y5 Lite 2018
Chipset: MT6737M
Build: C469B126
Notes: Duplicate build option for the same CAG-L23 C469B126 firmware branch.
Download: Google Drive
File size: 822MB
Model: CAG-L23
Market name in filename: Huawei Y5 Lite 2018
Chipset: MT6737M
Build: C469B126
Notes: Duplicate build option for the same CAG-L23 C469B126 firmware branch.
Download: Google Drive
CAG-L03 Firmware Files
Filename: Huawei_Y3_2018_CAG-L03_CairoGO-L22_B048_MT6737M_Board_Software_General_Android_8.1_05022KSE.zip
File size: 1.15GB
Model: CAG-L03
Android version: 8.1
Build: B048
Package type: Board software / general package
Notes: This package is labeled as board software and should be used only when you have confirmed it is the correct service package for the target CAG-L03 device.
Download: Google Drive
File size: 1.15GB
Model: CAG-L03
Android version: 8.1
Build: B048
Package type: Board software / general package
Notes: This package is labeled as board software and should be used only when you have confirmed it is the correct service package for the target CAG-L03 device.
Download: Google Drive
Filename: Huawei_Y5_Lite_2018_CAG-L03_MT6737M_L03C25B127_09202018.zip
File size: 921MB
Model: CAG-L03
Market name in filename: Huawei Y5 Lite 2018
Chipset: MT6737M
Build: C25B127
Notes: Public device references identify CAG-L03 under both Y3 2018 model-family listings and Y5 Lite 2018 LATAM branding, so model number verification is essential here.
Download: MediaFire
File size: 921MB
Model: CAG-L03
Market name in filename: Huawei Y5 Lite 2018
Chipset: MT6737M
Build: C25B127
Notes: Public device references identify CAG-L03 under both Y3 2018 model-family listings and Y5 Lite 2018 LATAM branding, so model number verification is essential here.
Download: MediaFire
Flashing Preparation
- Confirm the exact model number on the phone or board before downloading any file, because CAG-L02, CAG-L03, CAG-L22, and CAG-L23 should not be treated as interchangeable.
- Back up user data first, because stock firmware installation can erase apps, settings, and personal files.
- Charge the phone to at least 50 percent before starting the repair process.
- Check whether your package is a full firmware archive or a board software package before proceeding.
- Extract the archive first and inspect whether it contains Huawei update files for dload or another stock recovery layout.
- Match the regional code as carefully as the model number, especially on CAG-L22 and CAG-L23 packages with different CUST tags.
How to Flash the Firmware
- Identify the exact device model and pick the matching package, such as CAG-L22_CairoGO-L22C461B152 only for a CAG-L22 or Huawei_Y5_Lite_2018_CAG-L03_MT6737M_L03C25B127 only for a compatible CAG-L03.
- Extract the archive on your PC and confirm whether the package is a full firmware file or a board software package meant for service work.
- Copy the required Huawei update content to the proper storage location if the package uses the standard dload-style structure.
- Start the update using the model-appropriate Huawei local update method and wait for installation to complete without interruption.
- After reboot, test boot stability, SIM detection, Wi-Fi, charging, touchscreen response, and camera operation before returning the phone to use.
For the complete Huawei flashing workflow with the proper dload process, refer to this full guide: How to Flash Huawei Firmware via dload and eRecovery.
Frequently Asked Questions (FAQs)
Download the file that matches the exact CAG-Lxx model on the phone, not just the marketing name. Public references show that CAG-L03 and CAG-L23 can appear under different market names, so the model number is the safest identifier.
They appear to overlap in some markets within the CAG model family, but branding is not consistent across public references. Because of that, you should match firmware by exact model number, such as CAG-L03 or CAG-L23, rather than by product name alone.
Public specs for the Huawei Y3 2018 list Android 8.0 Oreo Go Edition, while several of the firmware files you supplied are labeled Android 8.1.0 or Android 8.1. That means these archives likely include later maintenance builds for specific regions or service branches.
Public user feedback on the Y3 2018 includes lag and apps closing by themselves. Those are typical reasons a technician may reinstall clean stock firmware after software corruption or unstable updates.
No reliable official per-build changelog was found during research for those exact packages. For that reason, this post avoids claiming specific bug fixes or security improvements that could not be verified.
In this list, the board software packages are the files explicitly labeled as board software in their filenames. They should be handled more carefully than ordinary consumer firmware archives because they are usually intended for technical service scenarios rather than casual updates.
In legitimate service or repair environments, flashing stock firmware may reset certain system states. Always service only devices you own or are authorized to repair, and follow local laws.
