Huawei Y3II (LUA Series) Official Firmware

Huawei Y3II (LUA Series) Official Firmware, Unbrick, and Flash Guide (L01, L02, L03, L13, L21, L22, L23, U02, U22, U23)

Is your Huawei Y3II frozen, stuck in bootloop, showing “Chip Damaged,” or failing update after SD/FlashTool/FRP? This guide provides a unique, model-grouped and region-correct firmware collection for all MT6582/MT6735M (LUA-L/U series): Kenya, India, Russia, Mexico, EU, Mediatek (not Qualcomm) boards. With clear warnings for “dead/brick” cases and IMEI risks, this covers both SD_Update and SP Flash Tool, sorted for safe, real-world repair.

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CRUCIAL WARNING:

  • MT6582 builds (U22/U02) ≠ MT6735M builds (L01/L02/L03/L13/L21/L22/L23): do not swap firmware!
  • SD_Update zips are safe for recovery/OTA; SP Flash Tool “scatter” ROMs erase everything & will wipe IMEI if preloader unchecked or wrong region/model installed.
  • Kenya Safaricom, India, Russia, Mexico & EU all use unique modem/baseband—cross-flashing can break SIM, network, display, or “chip damaged” errors.
  • Dead boot? Only use board/unbrick files built for your hardware revision—most U22 dead boot is from MT6582 tool flashed on a newer HW board.

Y3II Model/Chipset/Region Breakdown

ModelSoCGeo/CarrierSpecial Notices
LUA-L01, L02, L03, L13, L21, L22, L23MT6735MEU, India, Russia, Africa, Latin America, Mexico, Switzerland4G and 3G, SD Update and SPFT both usable. Hardware/camera/SIM minor differences. Use region-matched.
LUA-U02, U22, U23MT6582(M)Kenya Safaricom, global 3G3G/dual SIM. U22/U02 mostly Africa. Do NOT flash on 4G/MT6735M models.

Firmware & Board Files by Model/Region

LUA-U22, U02, U23 (Africa, Kenya Safaricom, MT6582)

FilenameRegion/CarrierBasebandTypeSizeDownload
FIDETEC_LUA-U02_C588B103_Kenya_Safaricom_05014BNN.zipKenya SafaricomMT6582SP Flash Tool2.55GBMEGA
Huawei_LUA-U22_U6582_MT6582_5.1.zipGlobalMT6582SP Flash Tool967MBMediaFire
Huawei_LUA-U22 Y3ii Firmware.zipGlobalMT6582SP Flash Tool957MBAndroidFileHost
Huawei_Y3_II_LUA-U22_MT6582_01052016_5.1.zipGlobalMT6582SP Flash Tool952MBGoogle Drive
Huawei_Y3II_LUA-U22_MT6582_C567B014_170319_5.1.zipIndia/KenyaMT6582SP Flash Tool1.22GBGoogle Drive
Huawei-Y3-II-LUA-U23-U23C464B009 – EMUI3.1.zipLATAM/GlobalMT6582SP Flash Tool2.08GBGoogle Drive

LUA-L21, L22, L23, L02, L01, L03, L13 (EU, India, Russia, Mexico, Switzerland, MT6735M)

FilenameRegion/CarrierBasebandTypeSizeDownload
Huawei_Y3II_LUA-L02_MT6735M_C575B105_120417.zipC575 Global/EUMT6735MSP Flash Tool906MBGoogle Drive
Huawei_Y3ii_LUA-L02_(LUA-L02C575B105).zipC575 Global/EUMT6735MSD Update910MBAndroidFileHost
Huawei_Y3ii_LUA-L02_(LUA-L02C575B105_SD_Update).rarC575 Global/EUMT6735MSD Update887MBGoogle Drive
Huawei_Y3ii_LUA-L23_(LUA-L23C482B101_SD_Update).zipC482 MexicoMT6735MSD Update1GBAndroidFileHost
Huawei_Y3ii_LUA-L23_MT6735M_C482B101_07222016.zipMexico/LatinMT6735MSP Flash Tool1.08GBMediaFire
HUAWEI_Y3II_Firmware_LUA-L03_C482B124_Mexico_Telefonica_Moviles_Mexico.zipC482 MexicoMT6735MSP Flash Tool1.3GBAndroidFileHost
LUA-L01C602B106_Firmware_Switzerland_Swisscom_Ltd_Salt_Mobile_SA_Android_5.1_EMUI3.1_05013YFK.rarSwitzerland CH/C602MT6735MSP Flash Tool1.97GBGoogle Drive
Huawei_LUA-L13_(LUA-L13C172B102).zipLatin AmericaMT6735MSP Flash Tool1GBAndroidFileHost
Huawei_LUA-L03_(LUA-L03C464B109).zipLATAM C464MT6735MSP Flash Tool1GBAndroidFileHost
Huawei_LUA-L13_(LUA-L13C172B102)_SCATTER.rarLATAMMT6735MSP Flash Tool (scatter)1.03GBGoogle Drive
LUA-L21C576B115_Firmware_5.1.0_r1_EMUI3.1_05021YTV.rarC576/EUMT6735MSP Flash Tool3.16GBGoogle Drive
Huawei_Y3ii_LUA-L22_(LUA-L22C567B101_SD_Update).zipIndia C567MT6735MSD Update913MBAndroidFileHost
Huawei_Y3ii_LUA-L22_C621B104_Firmware_India_CONPLEX_INTERNATIONAL_LIMITED_Android_5.1_EMUI_3.1_lite_05014FDV.rarIndia C621MT6735MSP Flash Tool961MBAndroidFileHost
Honor_LUA-L22_MT6735M_C567B103_02052017.zipIndia/GlobalMT6735MSP Flash Tool931MBMediaFire
LUA-U22_C479B006_Firmware_Russian_Federation_Asia_Nonspecific_Android_5.1_EMUI3.1_lite_05022ACU.rarRussia/AsiaMT6582 (be careful U22 here!)SP Flash Tool2.70GBGoogle Drive
Y3 II Huawei-LUA-L21_MT6735M.rarAfrica/EU?MT6735MSP Flash Tool836MBAndroidFileHost

Before You Begin ⚙️

  • 💾 Backup IMEI/NVRAM if possible before scatter flash. Wrong region can erase phone identity.
  • 🔋 Charge to 60%+ before flashing.
  • 🚩 SP Flash Tool = full wipe. SD Update is safer if phone boots recovery. Never mix U22/U02 and L22/L02 boards.
  • 🪛 “Dead boot” is almost always caused by wrong scatter or board mismatch. Use board/vendor-correct firmware only. Consult technician if unsure.

📱 Quick Model-Safe Flashing Guide

  1. Verify your model (Settings > About or under battery/SIM tray) and region code.
  2. Download matching firmware above.
  3. SP Flash Tool: Extract, open scatter file, uncheck preloader unless dead, select firmware upgrade or download only.
  4. SD Update: Copy update.zip to SD, boot recovery (Vol Up + Power), select “apply update from SD”, wait and reboot.
  5. If phone is dead after flash, recheck board number and try board-correct “dead boot” package or consult service.

See: Full Y3II SP Flash/SD Update Guide

Frequently Asked Questions (FAQs)

Q1: Why is my Y3II stuck with “chip damaged” after flashing?
This means the wrong SoC or board scatter was used (MT6582 vs MT6735M or different custom variant). Only use model-correct files!
Q2: Will I lose IMEI?
Yes if flashing with SPFT and preloader/region mismatch. Always backup NVRAM and avoid random “upgrades” across model codes; use SD update if possible.
Q3: Russian, Swiss, Kenya, India, Mexico: why so many variants?
Every carrier, region, and SoC combo has custom modem and partition—downloading only by baseband/board ensures no SIM/network break after repair.
Q4: Is dead boot permanent?
Rarely—usually fixed by flashing exact right scatter/board ZIP. Ask for help on XDA if model is old/uncommon.

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