On this page, we will guide you on how to install the official firmware file on Sony Xperia L4 XQ-AD51 based on Android 9.0 Pie. The device is powered by a Mediatek MT6762 Helio P22 chipset that comes with decent specifications. If you’re using a Sony Xperia L4 handset, then you can check out the full guide on the steps and requirements to flash Stock ROM.
In order to flash the firmware file on your Sony Xperia L4 device, requires Xperia Flash Tool and some drivers, and proper guidance. In this article, we will share with you the tutorial of installing stock firmware easily.
Why We Need Stock Firmware?
A Stock ROM or Firmware is official software crafted and developed by the official manufacturer for a particular device. It will be stable and almost bug-free as well. The Stock ROM comes with necessary system files and applications which provides a better user experience than a custom ROM.
Though a Custom ROM offers customizations and tweaks, it has some security issues possibly. You can’t really rely on a Custom ROM as compared to the Stock ROM. Whereas, you can also fix some of the device issues as well.
Advantages of Stock ROM:
Here are the answers to why you need to download and save the Sony Xperia L4 Stock ROM flash file on your computer.
- If your device is dead, you can unbrick using the Stock ROM file
- You can fix or repair the IMEI on your device using DB files from Stock ROM
- Remove any malware or Adwares from Sony Xperia L4
- You can fix the boot loop issue on Sony Xperia L4
- Fix Unfortunately, the app has stopped errors on Sony Xperia L4
- Fix Network related issue
- Patch Boot image to Root using Magisk
- You can unroot Sony Xperia L4
- To Reset or Remove FRP on your device
- Restore Sony Xperia L4 back to Factory State
Firmware Details:
- Device Name: Sony Xperia L4 XQ-AD51
- ROM Type: Firmware
- Gapps File: Included
- Tool Supported: Xperia Flash Tool
- Processor: Mediatek MT6762 Helio P22
- Android Version: Android 9.0 Pie
How to Flash Sony Xperia L4 XQ-AD51 Firmware File
Before installing the Stock ROM on your Sony Xperia L4 XQ-AD51, you should download the firmware flash file. Then download and install the USB Drivers and flash tool on the PC as well. Once you’re done with these, you can proceed to the steps below. But let’s take a quick look at the Stock Firmware importance and firmware details below.
Pre-Requirements:
- Before following this guide, make sure that you have enough battery backup on your device (at least 50% or higher)
- To begin with, you will have to enable OEM Unlocking. For that, head over to Settings > About Phone > Tap on Build Number 7 times > Go back to Settings > System > Advanced > Developer Options and Enable OEM Unlocking.

- Next up, download and install the XperiFirm Tool on your PC.
- Also, download and install the NewFlasher Tool on your PC.
- We would recommend you take a complete device backup and make sure that it is sufficiently charged as well.
- Finally, download and install the Sony USB Drivers on your PC.
That’s it. These were all the required files. You may now proceed with the steps to flash the Sony Xperia L4 XQ-AD51 firmware file.