Crucial Warning: Confirm your exact CAG model number (CAG-L02, CAG-L03, CAG-L22, or CAG-L23) before flashing. Never flash packages meant for the separate MediaTek MT6739-based Huawei Y5 Lite 2018 (DRA-LX5), as partition structures differ completely.
Download Firmware for Huawei Y3 2018
CAG-L22_CairoGO-L22C461B152_Firmware_8.1.0_r1_05015ANC.rar
Official factory package 05015ANC for model CAG-L22. Clean tested firmware.
⬇️ Download via Google DriveHuawei_Y3_2018_CAG-L22_MT6737M_L22C185B144.zip
Official MediaTek scatter firmware for CAG-L22 C185 branch. Mirror link included.
⬇️ Download (2 links)
CAG-L23_CairoGO-L23C469B129CUSTC469D001_Firmware_8.1.0_r1_05015CNR.rar
Official factory package 05015CNR for model CAG-L23 (Huawei Y5 Lite / Y3 2018).
⬇️ Download via Google DriveHuawei_Y5_Lite_2018_CAG-L23_MT6737M_L23C469B126_09182018.zip
Official MediaTek scatter firmware for model CAG-L23. Mirror link included.
⬇️ Download (2 links)
Huawei_Y5_Lite_2018_CAG-L03_MT6737M_L03C25B127_09202018.zip
Official MediaTek scatter firmware for model CAG-L03 (Huawei Y5 Lite / Y3 2018).
⬇️ Download via MediaFireHuawei_Y3_2018_CAG-L03_CairoGO-L22_B048_MT6737M_Board_Software_General_Android_8.1_05022KSE.zip
Official factory board software unbrick package for model CAG-L03.
⬇️ Download via Google DriveHuawei_Y3_2018_CAG-L02_MT6737M_B048_170428.zip
Official MediaTek scatter firmware for model CAG-L02.
⬇️ Download via Google DriveHuawei_Y3_2018_CAG-L02_CairoGO-L22-B048_MT6737M_Board_Software_General_Android_8.1_05022KSE.zip
Official factory board software unbrick package for model CAG-L02.
⬇️ Download via Google DriveFlashing Overview for Huawei Y3 2018
- Download and install MediaTek USB VCOM drivers and SP Flash Tool on your Windows PC
- Extract your downloaded firmware zip file to find MT6737M_Android_scatter.txt
- Open SP Flash Tool, click "choose" next to Scatter-loading File, and select the scatter file
- Leave flashing mode on "Download Only" and click the green "Download" button
- Turn off phone completely, hold Volume Down, and plug in the USB cable to begin flashing
Expand preparation checklist for Huawei Y3 2018
- Check your phone model number (CAG-L02, CAG-L03, CAG-L22, or CAG-L23) in Settings -> About Phone or on the battery compartment label.
- Install MediaTek USB VCOM drivers and SP Flash Tool on a Windows PC.
- Ensure the phone battery is charged to at least 40%.
- Use a reliable microUSB cable plugged into a direct computer port.
- Back up your important files, as flashing factory scatter packages formats internal user storage.
Compatibility & Bootloader Notes
Official factory board software and scatter packages flash via MediaTek BootROM/Preloader mode using SP Flash Tool. Unlocking the user bootloader is not required when flashing factory service firmware.
Ready to Flash This Firmware?
Full step-by-step instructions for Huawei Y3 2018, including prerequisites, error fixes, and screenshots, are on FlashGuideHub's SP Flash Tool guide.
Can also be flashed via Huawei UPDATE.APP: Open Huawei UPDATE.APP Guide →
Frequently Asked Questions
Huawei used both marketing names for the same underlying MediaTek MT6737M hardware platform (internal codename Cairo / CairoGO). In several Latin American countries, models CAG-L03 and CAG-L23 were sold in stores as the Huawei Y5 Lite 2018, while in global and CIS markets they were sold as the Huawei Y3 2018.
Board Software packages (05022KSE) are official factory repair archives used when a phone is completely hard-bricked, unresponsive, or has a corrupted Preloader partition. They contain low-level factory partition binaries to restore basic device functionality.
Because the Huawei Y3 2018 runs on the MediaTek MT6737M processor, standard firmware packages on this page contain an MT6737M scatter file designed for installation via SP Flash Tool.
Yes. Flashing a full scatter ROM writes clean system, cache, and userdata partitions, which erases all stored apps, photos, and files. Create a backup first if the phone still powers on.