How toPhones

11 Step-by-Step, How to Flash Android Phone Without a Computer:

Flashing your Android phone without a laptop could be an additional skill couple with other skills you acquired before especially when there is know available PC to use.

Therefore, this article focus mainly on how to flash android phone without computer. Just with few steps, you’re done.

How to flash Android Phone without a Laptop

Step 1. Backup Your Data

Before starting anything, this is the first step you ought to do. it’s essential to back up all your data/information including pictures, movies, audio, personal documents to prevent any loss. You can either Use the built-in backup options like (backup to Gmail, Dropbox) or third-party applications to save your contacts, and any files that are important.

Data TypeBuilt-in OptionThird-Party Apps
ContactsGoogle ContactsMy Backup Pro
MessagesGoogle DriveSMS Backup & Restore
PhotosGoogle PhotosDropbox, OneDrive
FilesGoogle Drive, OneDriveSolid Explorer, Total Commander

Step 2. Enable Developer Options

Next step is to head to your phone’s Settings and locate “About Phone.” among the options, search for the “Build Number” and click on it repeatedly until you receive a confirmation message stating that Developer Options have been enabled. Within Developer Options, activate “OEM Unlocking” and “USB Debugging”.

Steps to Enable Developer Options

1. Navigate to SettingsOpen the Settings app on your phone.
2. About PhoneScroll down and tap “About Phone.”
3. Find Build NumberLocate the “Build Number” and tap it seven times.
4. Enable Developer ModeYou will see a message confirming Developer Options.

Step 3. Enable OEM Unlocking and USB Debugging

Inside the Developer Options menu, you need to enable OEM Unlocking and USB Debugging.

How to Enable OEM Unlocking and USB Debugging

  1. Open Settings.
  2. Go to System and then Developer Options.
  3. Toggle OEM Unlocking to enable it.
  4. Toggle USB Debugging to enable it.

Developer Options Settings

OEM UnlockingAllows the bootloader to be unlocked
USB DebuggingAllows communication between your device and PC

Step 4. Download Required Files to Your Android

Next, you’ll need to download the necessary files for flashing your Android phone without a computer. This includes a custom recovery like TWRP (Team Win Recovery Project) and the ROM or firmware you want to install.

Steps to Download Required Files:

  1. Ensure your device is connected to a Wi-Fi network.
  2. Download the custom recovery (TWRP) compatible with your device model.
  3. Download the ROM or firmware compatible with your device.

Table: Essential Files for Flashin

File TypeDescriptionExample
Custom RecoveryA recovery environment for installing ROMsTWRP (Team Win Recovery Project)
ROM/FirmwareThe system software you want to installLineageOS, Stock ROM

iMarkup 20240613 010514

Step 5. Transfer Files to Your Phone

After downloading the necessary files, transfer them to your phone’s internal storage or an external SD card if applicable.

Steps to Transfer Files:

  1. Connect your phone to a Wi-Fi network.
  2. Transfer the downloaded files (custom recovery and ROM) to your phone’s internal storage or SD card.

Step 6. Backup Your Current ROM (Optional)

Before proceeding with flashing, it’s a good practice to create a backup of your current ROM using the custom recovery. This allows you to restore your device if something goes wrong during the flashing process.

Steps to Backup Current ROM:

  1. In the recovery menu, select Backup.
  2. Choose the partitions you want to back up (e.g., Boot, System, Data).
  3. Swipe to confirm and create the backup.

Step 7. Boot into Recovery Mode

Power off your phone. Then, boot into recovery mode. The method can vary slightly between devices, but it usually involves pressing and holding specific button combinations (like Volume Up + Power) until the recovery menu appears.

Step 8. Flashing the Custom Recovery

Using the recovery menu, flash the custom recovery (TWRP) that you downloaded earlier. This will replace the stock recovery on your device.

Steps to Flash Custom Recovery:

  1. In the recovery menu, select Install.
  2. Navigate to the location where you saved the TWRP file.
  3. Swipe to confirm the installation.

Perform a factory reset by wiping data and cache. This ensures a clean installation of the new ROM and prevents any compatibility issues.

Steps to Wipe Data and Cache:

  1. In the recovery menu, select Wipe.
  2. Choose Advanced Wipe.
  3. Select Data, Cache, and Dalvik Cache.
  4. Swipe to confirm the wipe.

Step 10. Flash the New ROM

Using the custom recovery, navigate to the location where you saved the ROM file and initiate the flashing process.

Steps to Flash New ROM:

  1. In the recovery menu, select Install.
  2. Navigate to the location where you saved the ROM file.
  3. Swipe to confirm the installation.

Step 11. Reboot Your Device

After the flashing process is complete, reboot your device. The first boot may take longer than usual as the system adjusts to the changes.

Steps to Reboot Device:

  1. In the recovery menu, select Reboot.
  2. Choose System.

With these steps, your device will restored to a fresh start or new capabilities without the need for a PC. Remember to always back up your data and download the correct files for your device to avoid any issues.


Q: Is it safe to flash my phone without a computer?

A: Yes, it is safe if you follow the instructions carefully and ensure that you have the correct files for your device. Always back up your data before starting the process.

Q: What happens if the flashing process fails?

A: If the process fails, you can restore your device using the backup you created earlier. This is why creating a backup of your current ROM is highly recommended.

Q: Will flashing a custom ROM void my warranty?

A: Flashing a custom ROM can void your warranty as it involves modifying the system software. It’s best to check your device’s warranty terms before proceeding.

Q: Can I use any custom recovery for flashing?

A: It is essential to use a custom recovery that is compatible with your device. TWRP is a popular choice and supports many devices, but you should verify compatibility before installation.

Table: Common Recovery Mode Key Combinations
Device BrandKey Combination
SamsungVolume Up + Home + Power
Google PixelVolume Down + Power
OnePlusVolume Down + Power
LGVolume Down + Power
MotorolaVolume Down + Power

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