How to Unlock Bootloader on Samsung Galaxy S10+ (Step-by-Step Guide)

Preparing Your Samsung Galaxy S10+

• 💡 Connect to Wi-Fi as it's necessary to communicate with Samsung servers.
• ⚙️ Navigate to Software Update and initiate 'Download & Install' to ensure a connection to Samsung servers, then pause any download if it starts.
• 📱 Access About Phone > Software Information and repeatedly tap the Build Number until Developer Options are enabled.

Enabling OEM Unlocking

• 🔓 Within Developer Options, locate and enable the OEM unlocking feature.
• ⚠️ Power off the device, as the next steps will trigger a factory reset, erasing all data.
• 🔌 Prepare a USB-C cable connected to a computer for the next stage.

Unlocking the Bootloader

• 🔑 To enter Download/Bootloader mode, simultaneously hold Volume Down + Bixby buttons while plugging in the USB-C cable.
• ⬆️ Once the warning screen appears, press the Volume Up button to confirm the bootloader unlock.
• 🔄 The phone will then perform a factory reset and reboot. You can unplug the cable after the reset begins.

Verification and Setup

• 🔧 After the phone reboots and completes the initial setup, reconnect to Wi-Fi.
• 🔍 Revisit Software Update to ensure server connection.
• ✅ Go to About Phone > Developer Options and verify that 'Bootloader already unlocked' is displayed, confirming the process is complete.