Huawei Honor 7S DUA-LX3 Firmware Flash File (Stock ROM)

Honor 7S launched in India in 2018 with Android 8.1 Oreo out of the box. The phone also comes with a Mediatek MT6739 SoC. In this tutorial, we will guide you on how to install the official firmware flash file on your Huawei Honor 7S DUA-LX3.

To install the firmware flash file on Honor 7S DUA-LX3, you need to download the Huawei Flash tool software. This method is simple and easy.

Stock ROM and its importance in Smartphones

Stock ROM is the pre-built operating system when buying the device from a retailer. Usually, when a person needs to customize his device with custom ROMs and other modifications, he opts to move on from the stock firmware. However, when things go wrong during any modification, reverting to the stock ROM is the only option to solve this issue.

By installing a stock ROM you can solve the issue of boot loop, device bricking. Besides, you can perform a system OS upgrade or downgrade as per your choice.

Advantages of Firmware File

• Flash Stock to unbrick your Honor 7S device
• Fix the device boot loop issue
• Upgrade and Downgrade your phone software version
• Flash Stock ROM to unroot the device
• Fix bugs or lag, or stutter on the Honor 7S device
• Increase software performance, battery draining issue, OTA update issue
• Gain phone warranty again (if applicable)

Steps to Flash Firmware File on Honor 7S

Now, before we get straight to the installation guide, follow the prerequisites section below and make sure you download the flash tools and drivers on your PC.

Requisites

• The stock firmware provided here is for Honor 7S (DUA-LX3). Do not flash it on any other phone. 
  
• We recommend having at least a 50% charge on your device before installing the firmware.
• A PC or Laptop.
• Make sure to take a backup of your device data. You can back up your phone Without Root.
• Alternatively, if you have TWRP Recovery installed on your device, you can create Nandroid Backup through TWRP Recovery.
• Download Huawei Multi-Download Tool on your PC and install it.
• Download Huawei USB Drivers on your PC
• You will also require to Download Huawei Handset Product Line Driver and install it.

Stock Firmware Information

• Device Supported: Honor 7S
• Model: DUA-LX3
• Android OS: Android 8.1 Oreo
• User interface (UI): EMUI 10.0
• Processor: Mediatek MT6739
• File: Software Update
• Gapps File: Included

Now, grab the stock firmware for the Honor 7S from the link below.

Download Flash Files

• Flash File Name: Dubai-L03 8.2.0.140(C212CUSTC212D1-PATCH)_Firmware_8.1.0_r1_EMUI8.2_05015PVH
• OS: Android 8.1 (Oreo), EMUI 8.1
• File Size: 3.7 GB
• Download Link: Click Here

Upgrade using OTG Adapter or OTG Cable+USB Memory

1. Download the dload firmware from the above link, extract it and copy the same to your USB memory stick. Make sure it is formatted as exFat or NTFS.
2. Factory reset your device from the Settings option (optional). Once done, power it off.
3. Now connect the memory stick using an OTG cable to your device. Make sure it has all the extracted files from the dload firmware.
4. Press the Power button and as it vibrates and shows the Huawei+Android logo, presses the Power button three times. Doing so will make your device reboot to eRecovery mode.
5. In that menu, select Update Mode, then select the Memory card/OTG update mode. The update will now start.

So these were the steps to install the stock dload firmware on Honor 7S using the memory stick. Let’s now have a look at how the same could be done via NM Card.