In electronic systems and computing, firmware is a specific class of computer software that provides the low-level control for the device’s specific hardware. Firmware can either provide a standardized operating environment for the device’s more complex software (allowing more hardware-independence), or, for less complex devices, act as the device’s complete operating system, performing all control, monitoring and data manipulation functions. Typical examples of devices containing firmware are embedded systems, consumer appliances, computers, computer peripherals, and others. Almost all electronic devices beyond the simplest contain some firmware.

Firmware is held in non-volatile memory devices such as ROM, EPROM, or flash memory. Changing the firmware of a device may rarely or never be done during its lifetime; some firmware memory devices are permanently installed and cannot be changed after manufacture. Common reasons for updating firmware include fixing bugs or adding features to the device. This may require ROM integrated circuits to be physically replaced, or flash memory to be reprogrammed through a special procedure. Firmware such as the ROM BIOS of a personal computer may contain only elementary basic functions of a device and may only provide services to higher-level software. Firmware such as the program of an embedded system may be the only program that will run on the system and provide all of its functions.

Before the inclusion of integrated circuits, other firmware devices included a discrete semiconductor diode matrix. The Apollo guidance computer had firmware consisting of a specially manufactured core memory plane, called “core rope memory”, where data was stored by physically threading wires through or around the core storing each data bit.

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 V75M Firmware Flash File Download Links

File Name: Symphony_V75M_MT6580_HW1_V6_2GB_180424.zip

Android Version: Android 7.0 (Nougat)

Firmware File: Download flash file

Flashing Instructions: You can use the Smartphone Flash Tool to install this version of the firmware file.


File Name: Symphony_V75M_MT6580_HW1_V10.zip

Firmware File: Download flash file

Flashing Instructions: You can use the Smartphone Flash Tool to install this version of the firmware file.

How to Install Symphony V75M Flash File Using Smartphone Flash Tool

To install the Symphony V75M 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:

Notes:

  • 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 SP Flash Tool onto your computer and then extract the file by right-clicking on it > clicking Extract from the menu so you can use it.

2. Download the official OEM USB driver for your manufacturer onto your computer, or try using the Android USB driver or Universal ADB driver if your OEM is not listed.

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

Some experts recommend removing the battery if your smartphone comes with a removable battery. Most newer smartphones do not come with removable batteries so you will not be able to do it. Since most people use the flashing tool without removable batteries, it is fine for you to use the tool without having removed your battery.

4. Download the stock firmware or custom firmware that you want to install on your smartphone or tablet and then extract the file by right-clicking on it > clicking Extract from the menu so you can use it.

5. Double-click on the SP Flash Tool application that is found within the folder you extracted in the previous step.

If you get a message from Windows stating that “Windows Defender SmartScreen prevented an unrecognized app from starting. Running this app might put your PC at risk,” click on the More info link and then click on Run anyway to open the file.

Flash Tool app in File Explorer
This is how the Smartphone Flash Tool, aka the SP Flash Tool, appears in File Explorer/Windows Explorer after you have extracted the file. Note the pictured icon, as well as the fact it is listed as an “Application” in the Type column.

6. From the SP Flash Tool’s interface, click on the Download tab. (click to enlarge screenshot below)

SP Flash Tool Download tab
The Smartphone Flash Tool can sometimes open with the Download tab already selected, depending on your version of the tool. If you get the welcome screen instead, you will need to click on the Download tab instead.

7. From the Download tab, click on the Choose button next to the Scatter-loading File area. (click to enlarge screenshot below)

Scatter-loading File -- Choose
The “Scatter-loading File” name is listed to the left side of the drop-down menu while the Choose button you click on is available on the right side of the drop-down menu. Each “Choose” button is available parallel to the name.

8. Browse your computer for the firmware scatter file and then upload it to this same location of the flashing tool. (click to enlarge screenshot below)

When you have loaded the file correctly, you will notice the details regarding the firmware gets filled in on the flashing tool’s interface.

Scatter-loading File details
The Smartphone Flash Tool interface shows you many of the file’s details when you have loaded it correctly. They include the name, begin address, end address, region, and location of the file on your computer’s hard drive. Leave the “Download only” selected from the drop-down menu.

9. Click on the Download button, and the firmware flashing is ready to begin. (click to enlarge screenshot below)

SP Flash Tool Download button
The “Download” button can only be viewed after you have selected the Download tab and it comes with a green arrow icon.

10. Connect your smartphone with the MTK chipset to the computer with the USB cable.

If you had a removable battery smartphone, ensure to insert the battery again before you connect it to the computer.

11. Once the connection is made, press one of the Volume buttons to help the computer detect your smartphone or tablet.

12. The flashing is completed when you get a green tick icon from the flashing tool.

You can now unplug your smartphone or tablet from the computer if you like.

That’s all.

FAQ

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

How to Unroot Symphony V75M 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 V75M 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.