Before you flash: Flashing firmware will erase all data on your device. Back up contacts, photos, and apps before proceeding. FlashGuideHub is not responsible for any damage caused by following this guide.
About the Huawei Y5II / Honor 5
The Huawei Y5II / Honor 5 is a 5.0-inch smartphone released in April 2016, manufactured across ten model variants. Most 4G LTE variants run on the 64-bit MediaTek MT6735P / MT6735 (4G) & MT6582 (3G CUN-U29) platform, while the 3G-only CUN-U29 model is powered by the 32-bit MediaTek MT6582 chipset.
Because the hardware spans two distinct processor families and multiple regional software branches, selecting the correct firmware package is essential. This guide covers both the SP Flash Tool PC method and the official Huawei SD card dload procedure.
Which Flash Mode Should You Use?
SP Flash Tool (Scatter Package)
The primary flashing method for unbricking and restoring the Huawei Y5II. Operates via MediaTek BootROM mode and does not require an unlocked bootloader. Uses MT6735_Android_scatter.txt for 4G models or MT6582_Android_scatter.txt for CUN-U29.
Huawei dload (microSD Card Update)
The official Huawei on-device flashing method. Requires copying UPDATE.APP into a "dload" folder on a FAT32 microSD card and triggering the upgrade through the hardware key combination. Works through stock recovery without a computer.
Qualcomm EDL / QFIL (Not Applicable)
Qualcomm Emergency Download mode and QFIL tools apply exclusively to devices built on Qualcomm Snapdragon processors. The Huawei Y5II is built entirely on MediaTek chipsets (MT6735 and MT6582); Qualcomm tools cannot recognize or flash this device.
What You Need Before Flashing
SP Flash Tool and MediaTek USB VCOM drivers run on Windows 10, 8.1, or 7. Connect to a rear motherboard USB port directly.
Download the package matching your exact model (CUN-Lxx vs CUN-U29) and cust code (C577, C642, C480, C567, C464, C311).
The 2200 mAh battery is removable. Ensure it has at least 40% charge to prevent mid-flash power interruption.
If using the SD update method, format a microSD card of 32GB or smaller as FAT32 before creating the dload folder.
Use a verified data-capable microUSB cable to avoid communication drops during flashing.
How to Flash the Huawei Y5II / Honor 5 — Quick Overview
A condensed step-by-step summary specific to the Huawei Y5II / Honor 5. Follow the full SP Flash Tool guide for screenshots, an interactive progress checklist, and complete troubleshooting.
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Identify your exact model number and processor variant
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Install MediaTek USB VCOM drivers on Windows
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Load the matching scatter file into SP Flash Tool
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Select "Download Only" mode
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Connect the powered-off phone to initiate flashing
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Wait for the green success indicator and reboot
Finding the Firmware Package for MT6735
MT6735_Android_scatter.txt
Extract your downloaded firmware archive on your PC. For 4G LTE models (CUN-L01 through CUN-L33, CUN-AL00, CUN-TL00), look for MT6735_Android_scatter.txt. For the 3G CUN-U29 model, look for MT6582_Android_scatter.txt. If your package is an SD card update, you will find UPDATE.APP inside a dload directory instead of a scatter file. Always keep the scatter file in the same directory as the partition binaries.
Huawei Y5II / Honor 5 Firmware Versions
Representative verified builds for each major model variant and regional branch of the Huawei Y5II / Honor 5. Always confirm your model and cust code before flashing.
| Version | Region | Android Version | Size | MD5 | Download |
|---|---|---|---|---|---|
Build 05042017 |
CUN-L01 — Global / Europe (Single-SIM 4G) | Android 5.1 | 1.01 GB | — | ⬇️ Download |
CUN-L02C642B102 |
CUN-L02 — C642 (Asia-Pacific / Sri Lanka) | Android 5.1 | 1 GB | a66142c0341eeec068e587bf9583170c |
⬇️ Download |
CUN-L03C480B105d |
CUN-L03 — C480 (Latin America) | Android 5.1 | 1.08 GB | — | ⬇️ Download |
CUN-L21C578B125 |
CUN-L21 — C578 (Africa / Ghana) | Android 5.1 | 1.05 GB | — | ⬇️ Download |
CUN-L22C567B130 |
CUN-L22 — C567 (Asia-Pacific / Cambodia) | Android 5.1 | 1 GB | 81cf962096e0e752169edd11fef5bed9 |
⬇️ Download |
CUN-L23C464B126 |
CUN-L23 — C464 (Latin America Open) | Android 5.1 | 1.1 GB | 80edbda1518385c8c580c2df1758551e |
⬇️ Download |
CUN-L33C311B105 |
CUN-L33 — C311 (Latin America) | Android 5.1 | 1.3 GB | 8e21d042d7ced6047744a6cd3e2f750b |
⬇️ Download |
CUN-AL00C00B135 |
CUN-AL00 — C00 (China Netcom / Honor 5) | Android 5.1 | 1.3 GB | 6ed0bd71f3209f8cd98d33360dded4ca |
⬇️ Download |
CUN-TL00C01B130 |
CUN-TL00 — C01 (China Mobile) | Android 5.1 | 1.10 GB | b0cbccc15a7d59105a9a1001c202977a |
⬇️ Download |
CUN-U29C567B134 |
CUN-U29 — C567 (MediaTek MT6582 3G Model) | Android 5.1 | 1.2 GB | — | ⬇️ Download |
This device has 17 known files across 10 confirmed model variants. See the complete archive on AndroidFirmwareFile.com →
Common Errors on the Huawei Y5II / Honor 5
BROM ERROR: S_FT_ENABLE_DRAM_FAIL (4032)
DRAM initialization handshake failed. Ensure you are not flashing an MT6735 ROM onto an MT6582 CUN-U29 model, or re-verify driver installation on a direct USB 2.0 port.
BROM ERROR : S_SECURITY_SECURE_USB_DL_IMAGE_SIGN_HEADER_NOT_FOUND (6043)
Security header mismatch. Occurs when attempting to flash unsigned or altered partitions. Use an official stock firmware package matching your model and regional cust tag.
Device keeps disconnecting and reconnecting in Device Manager
The phone is entering preloader charge mode rather than BROM. Remove the battery, reinsert it, and connect the USB cable while holding Volume Down.
dload update fails with "Software install failed!"
The UPDATE.APP package regional cust code does not match the device's existing cust partition, or the microSD card is formatted in exFAT instead of FAT32. Reformat to FAT32 and check the build number.
For the complete SP Flash Tool error code and resolution index: SP Flash Tool Error Directory →
Frequently Asked Questions — Huawei Y5II / Honor 5
Error 4032 indicates a DRAM initialization failure. On the Huawei Y5II, this most commonly occurs when attempting to flash an MT6735 scatter package onto a 3G CUN-U29 phone (which requires an MT6582 package), or when flashing a regional package with an incompatible preloader. Verify your model number on the label under the battery.
Format a microSD card (32GB or smaller) to FAT32. Create a folder named "dload" in the root directory and place the UPDATE.APP file inside it. Insert the card into the powered-off phone, then press and hold Volume Up, Volume Down, and Power together until the Huawei software upgrade screen appears.
No. SP Flash Tool communicates directly with the MediaTek processor at the hardware BootROM level before the Android bootloader executes. Similarly, the official Huawei dload method runs through stock recovery. Neither procedure requires bootloader unlocking.
Pull the removable battery for 10 seconds to fully reset the board, reinsert it, and boot into recovery mode by holding Volume Up and Power. In recovery, select "Wipe cache partition" followed by "Wipe data/factory reset", then reboot.
Ready to Flash?
Follow the full step-by-step SP Flash Tool guide with interactive progress tracking, prerequisite checklist, and complete troubleshooting.