Original subtitles

In this video, I’ll show you through the process of in stalling the top-tier custom

ROM for Android devices in 2025. This is Lineage OS 22.1 based on Android 15. Its a widely used

custom ROM built on the Android Open Source Project, supporting over 100 Android devices.

It’s especially great for older devices that no longer get official support from manufacturers.

Not only does Lineage OS offer security updates to fix vulnerabilities,

but it also gives you access to the latest Android features and improvements.

Before we begin, let's see the requirements for installing lineage OS on your Android device.

You need A compatible Android device or tablet. You can verify if your device

is supported by visiting the lineageOS website. These are devices from different

vendors that are compatible running latest lineage OS based on Android 15.

You also need A computer running Windows, macOS, or linux.

A USB Cable to connect your device to the computer

An internet connection

Before installing lineage OS on your Android device.

It is highly recommended to backup your important data such as photos,

and videos. Everything on your smartphone will be erased to install a fresh copy of

Lineage OS. Also, make sure to update your device to the latest firmware.

Now, On your Android device, go to settings, select passwords & accounts, and sign out From

your Google account. Then Remove biometrics, such as login passwords or fingerprints.

Then Head over to the Android developer Website and download the platform tools

for your computer and choose your operating system. In my case, I am using Windows 11

Once downloaded, extract the ZIP file to the C Drive. Within this folder,

you will find the ADB and fast boot commands.

Now Let’s add this path to the system environment to access them from anywhere. To do so, highlight

the address bar, then type ENV in the search bar, and open it. Then click on Environment

variables. Select the path option, click edit, create a new variable, and paste the path.

Now open the command prompt and type ADB —version. It should display the

information about the command indicating that the path has been added successfully.

Next up go to this link and download the Google USB driver. Once the download is complete,

extract the zip file. Inside the extracted folder,

find the file named android_winUSB. Right-click on it and select Install to set up the USB driver.

Then go to the official lineage OS website. Click on Get lineageOS

and search for your device. I will be using the Nothing phone

1 as an example. I am going to open this link in a new tab to download the necessary files.

At the time of recording this video, lineage OS 22.1 based on Android 15 is the latest available

build. I will download all these files and place them into a folder for easier navigation.

Then for the installation instructions, click on installation for your

device. Now Connect your Android device to the computer via a USB port. Follow these

instructions carefully. If you have a different device, please refer to

its corresponding instructions. Then, ensure your device is running the latest firmware.

And the next step tells you to unlock the boot loader.

To do so, on your smartphone, navigate to the About page,

and tap on the build number seven times to activate the developer options.

Now go to system-developer options, and enable OEM Unlocking and USB debugging.

On your Windows computer, open command prompt or Windows terminal,

enter this command ‘adb devices’. Then on your phone, you may see an

authentication prompt. Click on Allow. You should see your device is recognized by ADB.

Now type this command to reboot your device into the fast boot mode.

Then type fast boot devices you should see your device recognized by fast boot. In case it doenst

Open Device Manager, select other devices, and right-click on Android. Update the driver. Follow

the on-screen instructions to manually update the Google USB driver we extracted earlier.

Now if I type fastboot Devices and you can see the device has recognized by fastboot.

Then Type this command to unlock the boot loader.

After executing this command, you may see a prompt on your smartphone. Use

the volume keys on your device to select the unlock boot loader option and press

the power button to confirm. That's it you have successfully unlocked the boot loader.

If your device boots into the stock Android OS,

you need to put the device into fast boot mode again. To do this,

restart your phone and keep holding the volume down button to enter fast boot mode.

It’s time to flash additional partitions & custom

recovery. Navigate to the directory where you placed all the files in the command prompt;

Then type fastboot devices to make sure that your device is still recognized.

Then using the installation instructions,

I am going to follow each step to flash additional partitions.

Finally, I am going to paste this command to flash the lineage OS recovery.

After that, type this command to reboot into new recovery mode.

It’s time to install lineage OS. Choose factory reset using the volume keys and

press the power button. Select format data and press the power

button to factory reset the device. This will also remove device encryption.

Once done go back to the main menu, select Apply update, and choose Apply from ADB. Now,

Enter the command adb -d side load and use the lineage OS zip file then press enter

to flash it. This will take approximately 10 Minutes. Sit back, relax and please be patient.

After some time, you will see this thing on your device that allows

you to flash the additional packages such as Google apps.

If you don’t want to install GAPPS, select NO to reboot into Lineage OS.

For those who want to install Google Apps, choose YES to reboot back to recovery mode.

Inside the Command Prompt, you may see an error message. Don’t worry;

the lineage OS installation was successful.

Then click on next step and click this link to download the latest GApps. Since I have

installed lineage OS 22.1 based on Android 15 I will choose this package. Then place the GAPPS,

where lineageOS is located on your computer.

On your Android device choose Apply Update and apply from ADB. In the command prompt

run this command to setup GAPPS. You may see a signature verification failed

message on your device simply choose yes to finish side-loading GAPPS.

Now choose reboot to start your device booting into lineageOS.

Then remove the USB cable.

Now go a head and setup your smartphone.

As you can see Google Play Store is now installed. That is, this is how you install lineage OS on

any compatible Android device. Please check the description for more information and don’t forget

to read the official lineage OS installation Instructions for your specific Android device.

If you have any questions or queries do post them in the comment section down below.