How to Install Custom Recovery (TWRP) on Samsung Galaxy S21 FE 5G

Understanding Custom Recovery

• 💡 A custom recovery mode, like TWRP, offers unofficial options beyond the stock recovery.
• 🚀 This enables advanced features such as installing custom ROMs and performing full device backups.

Unlocking the Bootloader

• 🔑 To begin, you must unlock the bootloader on your Samsung Galaxy S21 FE 5G.
• ⚙️ Navigate to Settings > About phone > Software information and tap the build number seven times to enable Developer Options.
• ✅ In Developer Options, ensure OEM unlocking is enabled; if not, connect to the internet, restart, and check again.

Preparing Your Device and Computer

• 🔌 Power off your phone and prepare to boot into download mode by holding Volume Up and Volume Down while plugging in the USB cable connected to your computer.
• ⚠️ If the screen remains blank, also press and hold the power button until something appears, then release all buttons and briefly press Volume Up to initiate the bootloader unlock process.
• 🔄 After the phone resets, you may need to press the power key again to complete the process.

Downloading and Installing Necessary Files

• 💻 Download the custom recovery files (TWRP), Odin flashing tool, and Samsung USB drivers from the description link and the hardreset.info website.
• 🗜️ Extract the downloaded archives using a tool like WinRAR if needed.
• 🖱️ Install the Samsung USB drivers and restart your computer to ensure they are properly recognized.

Flashing Custom Recovery with Odin

• 📲 Open Odin, connect your phone (which should now show a blue rectangle in Odin), and load the TWRP file into the AP slot.
• 🚫 Crucially, go to Odin's Options tab and unselect Auto Reboot and F. Reset Time, ensuring other options are also deselected.
• ⚡ Load the vbmeta-disabled file into the USERDATA slot to disable protection features.
• ▶️ Click Start to flash the custom recovery.

Booting into Custom Recovery and Finalizing

• 🏃‍♂️ While the phone is still connected, press and hold Power and Volume Down until the screen turns off, then quickly switch to holding Power and Volume Up to boot into the custom recovery.
• 🔒 Once in TWRP, go to Wipe > Format Data, type yes, and approve to remove encryption.
• ✅ Perform an Advanced Wipe (select all partitions) and swipe to wipe.
• 🔄 Reboot the system from the recovery menu to complete the installation.