How to Unlock the Bootloader on a Samsung Galaxy A51 5G

Preparing Your Samsung Galaxy A51 5G

• ⚠️ Unlocking the bootloader will erase all data on your phone, so it's crucial to back up anything important.
• 📧 Before proceeding, remove your Google account from the device to avoid complications during setup.
• 📶 Ensure your phone is connected to Wi-Fi, as this is necessary for the bootloader unlock process to communicate with the manufacturer.

Enabling Developer Options and OEM Unlocking

• ⚙️ Navigate to Settings > About phone > Software information and tap the Build number seven times to enable Developer Options.
• 🔓 In Developer Options, find and enable OEM unlocking; if it's not visible, confirm your Wi-Fi connection and wait a moment.

Entering Bootloader Unlock Mode

• 🔌 Power off your phone. Then, press and hold both Volume Up and Volume Down buttons simultaneously.
• ⚡ While holding the volume buttons, plug in the USB-C cable that is already connected to your computer.
• 👆 To proceed to the bootloader unlock screen, you may need to press and hold the Volume Up button briefly.

Confirming Bootloader Unlock and Device Reset

• ✅ On the bootloader unlock screen, press Volume Up to confirm your intention to unlock the bootloader.
• 🔄 The phone will then restart and perform a factory reset, which may take 3-5 minutes.
• 🖱️ You will need to press the power key to bypass an initial alert screen after the reset.

Verifying Bootloader Status

• 📱 After the phone restarts, complete the initial setup, preferably without connecting to Wi-Fi for speed.
• 📶 Once set up, reconnect to Wi-Fi and go to Settings > About phone > Software information.
• 🔒 In Developer Options, OEM unlocking will be enabled and grayed out, indicating that the bootloader is successfully unlocked.