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How to Reinstall Android OS [3 Ways]

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This article was contributed by Austin Bell, who is a Senior writer for iMobie.

Whether you want to upgrade to a new Android version or want to fix a system glitch, reinstalling your Android OS is the answer.

One thing we love about Android OS is the fancy names: Oreo, Kitkat, Jellybean, Lollipop, and Honeycomb. However, sometimes you face smartphone issues that make you forget these delicious names, and the only thing you can think about is getting your phone back on track.

In such a scenario, the only viable solution is to reinstall Android OS!

But obviously, not all of us are aware of how to carry out this technical task. Therefore, we have discussed 3 quick and easy ways to reinstall Android OS to help you fix your smartphone.

And while doing so, you will also learn that reinstalling Android OS is not as technical as it seems!

Why Do You Need to Reinstall Android OS?

Just like every other operating system, Android OS also needs reinstalling. However, Android OS updates are less frequent than other updates; therefore, your device is prone to acting up occasionally.

The solution? Reinstalling your Android OS.

This could be due to a number of reasons.

For instance:

  1. Fixing unknown errors on your Android device.
  2. Configuring app permissions.
  3. Adding new features and making the previous ones work seamlessly.
  4. Updating your device to the latest Android OS version.
  5. Lastly, make your device run smoothly without any glitches.

Regardless of why you need to reinstall Android OS, here are 3 ways to do so easily:

Method 1: Reinstall Android OS Using PC

The first method to reinstall Android OS on your phone successfully is via PC. For this, we will use a third-party app, like iMobie DroidKit.

Here are some reasons why we suggest using DroidKit to reinstall Android OS:

  • DroidKit helps you upgrade your device to any supported Android OS version.
  • It automatically matches a secure official ROM for your device.
  • With DroidKit, you don't need to root your device to reinstall Android OS.
  • This method ensures no data loss or security breach.
  • You don't need any prior experience for this method to work, as it requires only a few easy steps.
  • DroidKit is compatible with /8/7, macOS, and all Samsung phones & tablets with Android OS 5 to 12.
  • With this tool, you can fix underlying issues causing your system to freeze, crash, or get infected with malware.

Step 1

Download and launch DroidKit on your PC, and click “System Reinstall” from the interface.

Select System, Reinstall from the Interface

Step 2

Connect your Android device to the PC using a USB cable. DroidKit will automatically detect it and list down the firmware compatible with it. Choose the firmware to download.

Download Firmware

Step 3

This will start the firmware download process. It might take a few minutes; therefore, don't unplug or use your device during it.

Step 4

Once the firmware is downloaded, click “Start to Reinstall” to reinstall Android OS.

Step 5

Now follow the on-screen instructions to put your Android device in “Download Mode” and click “Next.”

Put Your Device in Download Mode

Step 6

DroidKit will now start reinstalling your Android OS. This process might take several minutes, so keep your device connected.

System Reinstall in Process

Step 7

Once your Android OS has been reinstalled, your device will restart, and all the issues will be fixed.

Reinstall Android OS Complete

 

You can opt for the following method if you don't want to use a third-party app to reinstall Android OS.

Method 2: Perform a Hard Reset

The second method to reinstall Android OS is by performing a hard reset. This method might appear a bit technical, as it requires putting your device in “Developer Mode.” However, if you follow the steps correctly, you can easily carry it out.

This method requires a PC and Android ADB Tools.

  • Go to “Settings > About Phone.”

  • Tap the “Build Number” several times until you see the “You're already a developer” notification.

Tap Build Number Until you Enter Developer Mode

  • Now return to the main settings and tap “System & Updates > Developer Options,” which will appear once you enter the “Developer Mode.”

Go to Developer Options

  • Turn the toggle on for “USB Debugging.”

Turn Toggle On for USB Debugging

  • Now download Android ADB Tools on your PC and connect your device using a USB cable.
  • Go to the Start menu and type “CMD” to open the Command Prompt.

Type CMD in Start Menu to Open the Command Prompt

  • Type the location of your ADB Tools (C:/Users/User/AppData/Local/Android/SDK/platform-tools) and press enter.

Type ADB Tools Location in Command Prompt

  • Type “ADB Reboot Recovery” to restart your Android device and put it in “Recovery Mode.”
  • Disconnect your device from the PC and factory reset it to reinstall Android OS.

As we mentioned, this method is not for everyone, especially those with little to no technical knowledge. Therefore, we have a third method also to reinstall Android OS.

Method 3: Flash the ROM

Another way to reinstall Android OS is to flash the ROM. This method requires you to root your device and perform some research based on your Android model. We suggest taking help from a tech-savvy person who knows their gadgets. Also, back up your device to keep your data safe.

  • Launch on your device and search for “Custom ROMS' with your mobile model number. Download it to your mobile's SD card.

  • Switch off your Android device and restart it in “Recovery Mode” by pressing the volume and power buttons simultaneously.
  • Select “Install ROM from SD Card” or “Install Section” from the given options and select the path where you downloaded the ROM.
  • Select “Reboot System” to start the Flash ROM process, during which it might erase all your data.

Install ROM and Reboot System

  • Once the process is complete, you can restart your Android device with a brand-new OS!

Just like hard resetting your Android device, the Flash ROM method also requires some technical knowledge. Therefore, using DroidKit is by far the easiest method that does not require any prior knowledge or experience to use.

However, here's a bonus tip on how to fix common Android issues without using a third-party app or going through complicated steps.

How do I Restore My Android OS?

If your Android device is acting up, getting a frozen screen, or lagging, you can restore it to factory settings. This fixes possible glitches and also works to remove lock screen passwords.

  • Go to “Settings > Backup & Reset > Factory Reset Data.”
  • Tap “Reset Device > Erase Everything” to confirm your selection.

This will restore your Android device to its factory settings, and you can set it up as new. However, this method does not reinstall Android OS.

Conclusion

In this article, we have discussed 3 methods to reinstall Android OS on your phone. The hard reset and flashing ROM processes are a bit complicated and may require you to take help from someone with technical knowledge.

Therefore, using iMobie DroidKit is the quickest and most convenient way to reinstall Android OS.

DroidKit is a complete Android tool kit that not only helps with reinstalling the OS but also comes in handy if you forget your lock screen password or Google account details and want to bypass them. Moreover, you can recover your lost data, WhatsApp conversations, and other media in just a few steps. So no matter the issue with your Android device, DroidKit is there to save the day and get your phone up and running again.

About the author

Austin Bell is a Senior writer of the iMobie team, he is passionate about Android and iOS guides and tips. He loves to help more phone users solve various types of iOS & Android-related issues.

Last Updated on March 13, 2023 3:00 pm CET by Markus Kasanmascheff