[Guide] How to Install TWRP Recovery on Samsung Galaxy J5 2016 LTE China Mobile (SM-J5108 / j5xnltezm)​

• Device Model: Samsung Galaxy J5 (2016) China Mobile CMCC (SM-J5108 / j5xnltezm)
• Chipset / Platform: Qualcomm Snapdragon 410 (MSM8916 - 64-bit Quad-Core ARM Cortex-A53)
• Storage Interface: eMMC 5.1
• Stock OS: Android 6.0.1 Marshmallow / Android 7.1.1 Nougat
• Target Recovery: TeamWin Recovery Project (TWRP) Custom Recovery
• Status: 100% Tested & Verified Working

Prerequisites & Critical Warnings​

• C-Type / China Variant Unlock (CROM Service): Chinese carrier variants (such as China Mobile SM-J5108) enforce an additional hardware bootloader lock layer via Samsung's CROM service. You must unlock CROM before Odin can flash custom binaries, otherwise Odin will halt with SECURE CHECK FAIL: RECOVERY or CUSTOM BINARY BLOCKED BY C-LOCK.
• Knox Warranty Void: Flashing custom binaries permanently trips the hardware eFuse (0x1), disabling hardware-backed security features.
• FRP & OEM Lock: Keep OEM Unlocking toggled ON in Developer Options to avoid triggering Custom Binary Blocked by FRP Lock.
• Data Backup: Back up important personal files, contacts, and photos before flashing.
• Required Files & Tools:
  
  • Odin3 (v3.10.7, v3.12.3, or v3.13.1 recommended).
  • Official Samsung Mobile USB Drivers installed on PC.
  • Verified twrp-j5xnltezm-j5108.tar file.
  • Reliable Micro-USB data cable connected directly to a rear PC motherboard USB port.
  • CROM Service APK (if your device's bootloader is still CROM-locked).
  • Magisk or SuperSU ZIP file to root and prevent the stock Android system from restoring stock recovery on boot.

Step-by-Step Installation Instructions (Nasıl Yüklenir?)​

Step 1: Unlock Bootloader & Bypass C-Lock (CROM Service)​

1. Go to Settings > About Device > Software Info and tap Build Number 7 times to enable Developer Options.
2. Return to Settings > Developer Options and toggle both OEM Unlocking and USB Debugging to ON.
3. Install and launch the CROM Service APK (Samsung CROM app).
4. Follow the on-screen prompt and accept the terms to unlock the device's CROM bootloader lock.
5. Once CROM displays "Unlocked", your device is permitted to accept unsigned binaries in Download Mode.

Step 2: Boot into Samsung Download Mode​

1. Power off the phone completely.
2. Press and hold Volume Down + Home + Power buttons simultaneously until the teal warning screen appears.
3. Verify that the Download Mode screen displays CROM TARGET: Unlock.
4. Press Volume Up once to confirm and enter Download Mode (Odin Mode).

Step 3: Flash TWRP via Odin​

1. Launch Odin3 as Administrator on your PC.
2. Connect your phone to the PC using the Micro-USB cable. The ID:COM box will light up in light blue or yellow.
3. Click the AP (or PDA) button and select your twrp-j5xnltezm-j5108.tar file.
4. Go to the Options tab in Odin:
   
   • Keep F. Reset Time checked.
   • Uncheck Auto Reboot (Crucial: Prevents stock Android from rebooting normally and replacing TWRP with the stock 3e recovery).
5. Click Start and wait for Odin to display the green PASS! status.

Step 4: First Boot into TWRP Recovery​

1. Disconnect the Micro-USB cable.
2. Pull out the removable battery for 3–5 seconds, then reinsert it (or press and hold Volume Down + Power for 7 seconds until the screen shuts off).
3. Immediately press and hold Volume Up + Home + Power simultaneously.
4. Release all buttons the exact moment the Samsung boot logo appears with yellow/blue recovery text at the top left corner.
5. The device will boot straight into the TWRP interface.
6. Inside TWRP:
   
   • Swipe to allow system modifications.
   • If running Android 7.1.1 Nougat with forced encryption, navigate to Wipe > Format Data, type yes, and confirm.
   • Go to Install and flash Magisk.zip or SuperSU.zip to permanently disable stock recovery auto-restoration and gain root access.
7. Select Reboot > System.