LeCust

Lenovo Tab 4 8 | Lenovo 8504X | Customize!

Here are necessarry instructions to install custom rom or flashing custom recovery or rooting Lenovo tab 4 8, Lenovo 8504X!

ADB Setup

Requirements:

PC and USB Cable. Download Drivers. Download ADB Tools

Steps:

1. Enable "USB Debugging" from Developer Options. 2. Connect tab with pc. 3. Unzip "Platform Tools.zip" or ADB other zip file. 4. Navigate to unzipped folder 5. Clear the adress bar and type "cmd" and press enter. 6. A Command Line/PowerShell window will be opened. 7. Type "adb devices" in that and press enter. 8. Select "Remember this computer" and click allow in USB debugging prompt from phone. 9. If you can't do step 8 you have to search more drivers for your pc. Install proper drivers and repeat from step 2. 10. If your tab codename appears, then you have successfully setup ADB. Now you can use ADB commands!

Unlock Bootloader

Requirements:

PC, USB Cable and ADB Setup.
Caution: All data will be lost on factory reset!

Steps:

1. Enable "OEM Unlocking:Allow the bootloader to be unlocked" from Developer Options. 2. ADB Setup 3. Type "adb reboot bootloader" and hit enter. 4. Your tab will boot to fastboot showing FastBoot text with broken android icon. 5. Type "fastboot devices" and hit enter. If your tab codename appears go to next steps. 6. Type "fastboot oem unlock-go" and press enter. 7. Setup your factory reset tab and navigate to settings. In Developer Options you will see "Your bootloader is already unlocked". 8. Now you can root, install custom rom or custom recovery!

Custom Recovery

Requirements:

PC, USB Cable, Unlocked Bootloader and ADB Setup. Download TWRP for 8504X

Steps:

1. ADB Setup 2. Type "adb reboot bootloader" and hit enter. 3. Your tab will boot to fastboot showing FastBoot text with broken android icon. 4. Type "fastboot devices" and hit enter. If your tab codename appears go to next steps. 5. Type "fastboot flash recovery" and hit space and drag and drop twrp image file. press enter. 6. Type "fastboot boot" and hit space and drag and drop twrp image file. press enter. 7. Your tab will successfully start TWRP recovery. Now it's time to install new OS/ROM!

Custom Rom

Requirements:

Unlocked Bootloader and Custom recovery. Download Custom Rom LineageOS for 8504X Download modified LinageOS that is used by me.

Steps:

1. Reboot to Custom TWRP Recovery. 2. Click on Wipe. Select system, dalvik-cache and internal storage. 3. Swipe to right and press home. 4. Tap on install. Navigate to custom rom file and click on it. 5. Swipe to right and wait. 6. After installation is complete, click on home and select reboot and then tap system. 7. Custom OS/ROM installation successful!

Root with custom recovery

Requirements:

Unlocked Bootloader and Custom TWRP Recovery. Download Magisk

Steps:

1. Reboot to custom TWRP recovery. You may use the previous paragraph to start TWRP recovery. 2. Tap on install. Navigate to magisk file and click on it. 5. Swipe to right and wait. 3. After installation is complete, click on home and select reboot and then tap system. 7. Root successful!

Root without custom recovery

Requirements:

PC, USB Cable, ADB Setup and Unlocked Bootloader. Download Magisk Download Firmware for 8504X

Steps:

1. Unzip the firmware zip file. 2. Intall magisk manager and open the app. 3. Click on install after magisk. 4. Select patch a file. 5. Navigate to "boot.img" in unzipped firmware. 6. Select it and press okay/patch. Keep data connection on and wait a while. 7. Copy magisk_patched.img from download folder of internal storage to pc. 8. ADB Setup 9. Type "adb reboot bootloader" and press enter. 10. Type "fastboot boot" , hit space, drag and drop the patched file and press enter. 11. Type "fastboot reboot" and press enter. 12. Root successful!

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