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Guides

Step-by-step Android modding guides

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🔓 Bootloader Unlock

Unlock Bootloader

Wipes everything. Samsung Knox trips permanently on unlock — no way back.

8 steps ▼
  1. Back up all data — unlocking factory resets your device
  2. Enable Developer Options: Settings → About Phone → tap Build Number 7 times
  3. Enable OEM Unlocking in Developer Options
  4. Enable USB Debugging in Developer Options
  5. Connect to PC: adb reboot bootloader
  6. Unlock: fastboot flashing unlock (older: fastboot oem unlock)
  7. Confirm on device screen — wipe happens immediately
  8. Device reboots to stock setup wizard
🛠 Install Recovery

Install TWRP Recovery

Use the exact TWRP build for your device model number. Wrong builds can brick.

5 steps ▼
  1. Download TWRP .img for your exact device variant from twrp.me
  2. Boot to fastboot: adb reboot bootloader
  3. Flash: fastboot flash recovery twrp.img
  4. Boot into recovery immediately: fastboot boot twrp.img
  5. In TWRP swipe to allow modifications
🛠 Install Recovery

Install OrangeFox Recovery

OrangeFox is only available for select devices.

4 steps ▼
  1. Download OrangeFox .img for your device from orangefox.tech
  2. Boot to fastboot: adb reboot bootloader
  3. Flash: fastboot flash recovery orangefox.img
  4. Boot into recovery: fastboot boot orangefox.img
📦 Install ROM

Install LineageOS onSony Xperia Tablet Z LTE

20 steps ▼
  1. Read through the instructions at least once before actually following them, so as to avoid any problems due to any missed steps!
  2. Make sure your computer has adb and fastboot . Setup instructions can be found here .
  3. Enable USB debugging on your device.
  4. Boot your device with the stock OS at least once and check every functionality.
  5. Remove all Google accounts from your device to avoid “Factory reset protection”
  6. LineageOS is provided as-is with no warranty. While we attempt to verify everything works you are installing this at your own risk!
  7. Open the Contacts app.
  8. Click on the menu button in the top right.
  9. Click on Settings .
  10. Long press (for about 5 seconds) somewhere in the empty space just above navigation bar, then release your finger. A button named Enter service code will then appear in the same area (this may take a few attempts).
  11. Click on Enter service code . A dialer will appear.
  12. On the device, dial *#*#7378423#*#* ( *#*#SERVICE#*#* ) to launch the service menu.
  13. Go to service info > configuration and check rooting status - you can only continue if it says Bootloader unlock allowed: Yes .
  14. Go to System Settings > About Phone and record the first IMEI number, which is necessary to get an unlock code from Sony in a later step.
  15. Connect the device to your PC via USB.
  16. On the computer, open a command prompt (on Windows) or terminal (on Linux or macOS) window, and type: adb -d reboot bootloader You can also boot into fastboot mode via a key combination: With the device powered off, hold Volume Up and connect the USB cable. The notification light should turn blue.
  17. Once the device is in fastboot mode, verify your PC finds it by typing: fastboot devices check Tip: If you see no permissions fastboot while on Linux or macOS, try running fastboot as root.
  18. Follow the instructions on Sony’s official unlocking website to generate an unlock code for your bootloader.
  19. Use your code to unlock the bootloader of your device: fastboot oem unlock <your_unlock_code>
  20. Since the device resets completely, you will need to re-enable USB debugging to continue.
⚡ Root

Root with Magisk

Keep a backup of the original boot.img. Magisk is systemless — safer for updates.

7 steps ▼
  1. Unlock bootloader first
  2. Download stock boot.img for your exact firmware build
  3. Install Magisk app on device
  4. In Magisk: Install → Select and Patch a File → pick boot.img
  5. Copy patched_boot.img to PC
  6. Flash: fastboot flash boot patched_boot.img
  7. Reboot and open Magisk to verify root
⚡ Root

Root with KernelSU

Requires kernel-level support. Not all devices are supported.

5 steps ▼
  1. Check kernelsu.org for a supported kernel for your device
  2. Download the KernelSU kernel .img
  3. Flash: fastboot flash boot kernelsu_boot.img
  4. Install KernelSU Manager from GitHub releases
  5. Grant root from the Manager
⚡ Root

Root with APatch

Alternative to Magisk with kernel patch support.

5 steps ▼
  1. Download APatch from github.com/bmax121/APatch
  2. Extract boot.img from your stock firmware
  3. In APatch app: patch boot.img
  4. Flash patched boot: fastboot flash boot patched_boot.img
  5. Reboot and verify in APatch Manager
🔄 Restore / Unbrick

Restore Stock / Unbrick

Always use firmware matching your exact region and model number.

7 steps ▼
  1. Download official stock firmware for your exact model and region
  2. Samsung: use Odin — flash AP/BL/CP/CSC files
  3. Xiaomi/Poco: use MiFlash in EDL/fastboot mode
  4. Google Pixel: use Android Flash Tool at flash.android.com
  5. OnePlus: use MSM Download Tool for hard bricks
  6. Other devices: check XDA for your specific model
  7. After flash: device reboots to stock
💰 Buy & Sell

Buying & Selling Modified Devices

Unlocked bootloader = lower resale value. FRP locks are illegal to bypass on a device you don't own.

7 steps ▼
  1. BEFORE SELLING: Factory reset and remove Google account (FRP)
  2. BEFORE SELLING: Restore stock ROM and re-lock bootloader if possible
  3. BEFORE SELLING: Disclose Knox trip status to Samsung buyers — it shows in settings
  4. BEFORE BUYING: Ask if bootloader is unlocked
  5. BEFORE BUYING: Check IMEI on imei.info — confirm not blacklisted
  6. BEFORE BUYING: Test camera, speakers, fingerprint, charging
  7. BEFORE BUYING: Verify model number matches your region