How to Install Custom Recovery (TWRP) on Samsung Galaxy J6+ using Odin

Unlocking the Bootloader

• 💡 To begin, connect your Samsung Galaxy J6+ to Wi-Fi and navigate to Settings > Software Update.
• 📌 Enable Developer Options by tapping the Build number multiple times in About Phone > Software Information.
• 🔑 Within Developer Options, enable OEM unlocking; be aware this action will trigger a factory reset and erase all data.

Preparing Your PC and Phone

• 💻 Download essential files on your PC: Samsung USB drivers, Odin 3.14.4, and the TWRP 3.7.0 custom recovery file (link provided in description).
• ⚙️ Install the Samsung USB drivers and restart your computer to ensure proper recognition.
• 📱 After the phone's factory reset, complete the initial setup, skip account logins, and reconnect to Wi-Fi.
• 🔄 Re-verify OEM unlocking is enabled in Developer Options, confirming the bootloader is unlocked.

Flashing TWRP via Odin

• 🔌 Power off the phone and boot into Download Mode by holding both volume keys while connecting the USB cable.
• 🖱️ Launch Odin on your PC and confirm the phone is connected (look for added numbers).
• 🎯 Select the TWRP file under the AP tab in Odin, then go to Options and uncheck Auto Reboot.
• ▶️ Click Start to flash the custom recovery.

Booting into TWRP and Initial Setup

• ⚡ Immediately after flashing, hold Power + Volume Down to exit Download Mode, then quickly switch to Power + Volume Up until the Samsung logo appears to enter TWRP.
• ➡️ In TWRP, swipe to allow modifications and then select Wipe > Format Data.
• ⌨️ Type yes to confirm data formatting, which is crucial for removing encryption.
• 🔙 Return to the main menu and optionally perform a factory reset or reboot.
• 🚀 You can now reboot to system, reboot back to recovery, or power off the device.