When troubleshooting devices, the first thing you need to do is work out if you’ve got a problem with the hardware or software.

The difference between software and hardware is simple enough—hardware is always the physical object that you can see and touch and software is only virtual and what you can see on your device’s display—but it gets more complicated with firmware in the mix.

Firmware serves a more specific purpose than software: it is always designed for a piece of hardware.

Many products get firmware updates, but two of the more common ones are your smartphones and tablets. The firmware gets updated at the same time you accept the software updates that you see coming in now and then. When dealing with Android, you can head to the About menu and look at your firmware version where it shows you the build number.

You can never rollback firmware updates; instead, you can flash the same firmware update on the device or install older or newer firmware updates that were made available for your device.

Installing firmware usually is done by accepting over-the-air updates, but it can also be installed manually with the help from a flashing tool. All you need to do is make sure you’re installing the right firmware for your device (i.e., that the model numbers match up) and are attempting to flash it with the correct flashing tool that is made to work with your device’s chipset in mind.

Device Customizations

Android is an operating system that can be customized easier than most others: it’s open source, and that means anyone can get a hold of the code and tinker with it.

If you’ve modified the system partition of the Android OS that runs on your device—which can happen if you’ve gotten root access or installed a custom recovery image—then most experts out there suggest sticking with custom software instead of installing official builds again.

If you’ve decided you want to go back to official builds, you should do it by installing the firmware files manually with the aid of a flashing tool, instead of accepting OTA updates.

What Is Android Firmware?

Firmware is the operating system and its applications that control how the smartphone or tablet that runs on Android operates. While you may see the words “software update available” on your device’s display, we call it firmware to highlight its close relationship with the device manufacturers hardware.

If you prefer technical jargon, firmware is the specific programming that gets written to a device’s non-volatile memory. The firmware gets added to the device during the manufacturing process and is the middleman in helping software run on the hardware. Firmware can be written as read-only memory (ROM), erasable programmable read-only memory (EPROM), or flash memory.

The Android operating system is more open than much of its competitors in iOS, Windows 10 Mobile, and Tizen. You always get firmware running on your device out of the box, but if you do not like it, you can swap it over with custom firmware or other firmware versions that were made for your device. This flexibility helps with troubleshooting, or if you know you would prefer a different Android version that was made available.

Why Reinstall Stock Firmware?

Did you think you may need to restore the stock firmware on your device? Here are some of the things that you can achieve with stock firmware files:

  • Upgrade or downgrade the version of Android on your device
  • Fix common mobile device-related problems, such as unbearable bugs in the software
  • Remove custom recovery images such as TWRP
  • Unroot the Android operating system, regardless of what method/tool you may have used to get root access
  • Unbrick your smartphone or tablet
  • Reinstall the operating system
  • Fix invalid IMEI problems

Symphony L23 Firmware Flash File Download Links

File Name: Symphony_L23_HW3_MIRA.zip

Firmware File: Download flash file

Updated Flashing Instructions: You can use the Miracle Box software to install the updated version of the firmware.

How to Install Symphony L23 Flash File Using Smartphone Flash Tool

The following tutorial is now deprecated. Please refer to the updated flashing instructions shown above instead.

To install the Symphony L23 firmware, you need to use a flashing tool that works for your manufacturer and run it on a computer. One flashing tool that works for this smartphone is the Smartphone Flash Tool. Here is how to use it:


  • Back Up Your Data. You should always back up your data before you begin flashing new firmware files to your smartphone or tablet. All of your pictures, music, videos, documents, etc. should be still on your device after you have updated the firmware, but you may need to restore the contacts and applications from a backup.
  • Wipe Cache and Factory Reset. Some people claim that taking a factory reset isn’t necessary after updates, but at the very least you should wipe the system cache after installing new firmware. This way you can help eliminate any performance issues and battery draining bugs. Taking a factory reset is the best way of avoiding common problems many users face after applying software updates.

Before We Begin

  • Make sure you have:
    • A desktop computer or laptop that is running on a version of the Windows or Linux operating system (ideally Windows 10 but at least Windows 7).
      • Note: The Windows and Linux SP Flash Tool files are separate files. If you have Windows, make sure you download the version for Windows. Likewise, if you have Linux, make sure you download the version for Linux.
    • A USB data cable that allows you to connect your smartphone or tablet to the computer.
    • The scatter loading file/files you want to flash to the smartphone or tablet.
  • You need to install USB drivers on the computer that allows for your smartphone or tablet to connect with the flashing tool. Several drivers can achieve this. If the drivers in the tutorial do not work for your device, try getting in contact with your smartphone’s manufacturer via an official website or phone number, or use a driver that works for MTK-based chipsets.
  • We recommend backing up the smartphone or tablet before getting started. The SP Flash Tool is a reliable tool, but whenever you are installing firmware—regardless of the tool—it is possible you may want to restore the old version of your device. You can only do that from a backup.
  • You need to download a version of the SP Flash Tool during the tutorial. You should always download the latest version of the tool. If that version does not work, try using an older version. Latest versions of tools have the best chance of being compatible.

1. Download the latest version of the Smartphone flash tool on your computer. Extract the file and then open the Smartphone flash tool application.

2. Download and install the Android OEM USB driver for your manufacturer.

Note: If your manufacturer doesn’t have a USB driver available, then try installing the Universal ADB driver or the Google USB driver.

3. Turn off the Celkon A63 smartphone by long-pressing the Power button.

4. Download the Celkon A63 stock firmware onto your computer and then extract the file.

5. From the Smartphone flash tool’s interface, tap/click on the Download tab and then tap/click on the Choose button for the Scatter-loading File option.

6. Tap/click on the Android scatter file and then tap/click on the Open button.

7. Tap/click on the Download button from the Smartphone flash tool’s interface.

For a more detailed guide complete with more in-depth steps and screenshots, you can check out the How to Install Firmware Using Smartphone Flash Tool tutorial.

That’s all.


There are some common questions people have before installing firmware files. Here are the ones we are regularly asked:

How to Unroot Symphony L23 When Installing New Firmware

There can often be a variety of ways to unroot a device that runs Android, and they depend on what method you used to get root access. If you installed SuperSU for root access, then you can open the app and find the option to unroot directly from SuperSU’s settings. On the other hand, if you do not have SuperSU, and you do have a Symphony smartphone or tablet, then you can always unroot by installing the stock firmware. Once you have followed the guide above, your device will automatically be unrooted. You can verify that is the case by installing one of the many applications from Google Play that checks for root access. As long as you are using a reliable app, then typically it will not lie about the root status of your mobile device.

How to Restore Stock Recovery on Symphony L23 When Installing New Firmware

One of the most common reasons for installing the stock firmware is to remove a custom recovery image and revert to the stock recovery. There is nothing you need to do extra to reinstall the stock recovery on your device; when you install the stock firmware, it will automatically install the stock recovery partition on the device once again.

Additional Firmware

You can download Android firmware for other Android devices if you have another smartphone or tablet from a different manufacturer.