Though there is no official changelog for the new Android 4.4.2 KOT49H update, it reportedly features performance and security enhancements, besides stability and bug-fix updates. The new Android 4.4.2 firmware is being rolled out in phases as an Over-The-Air (OTA) update in select regions. The update can be accessed via Settings > About Tablet > System updates > Check now.
Nevertheless, those who missed the official OTA update notification and those who cannot wait for its official release in their country can follow our step-by-step guide to install the same manually via ClockworkMod (CWM) or TWRP recovery.
Interested users who have already installed Android 4.4 KRT16S or Android 4.4.1 KOT49E firmware on their Nexus 10 can install this OTA update. This tutorial has three sections: the first is for non-rooted Nexus 10, the second for rooted Nexus 10 tablets and the third for rooting Nexus 10 on the newly installed Android 4.4.2 KOT49H bug-fix update.
IBTimes UK reminds its readers that it will not be held liable for any device damage during firmware and/or root installation. Users are advised to proceed at their own risk.
1. Install USB Drivers for Google Nexus 10 on the computer.
2. Enable USB Debugging Mode on the tablet by navigating to Settings >> Developer Options.
3. Back up all your important data before proceeding with firmware installation.
4. Ensure the tablet is factory unlocked and not rooted.
NOTE: For rooted procedure, just ensure the device is factory unlocked as well as its bootloader unlocked. Also verify that the device is pre-rooted with custom recovery (CWM or TWRP) installed.
5. Make sure the device is running Android 4.4.1 KOT49E or Android 4.4 KRT16S firmware before you proceed.
6. Verify the tablet has at least 80% battery charge to prevent unexpected device shutdown during firmware installation.
7. The Android 4.4.2 KOT49H KitKat firmware works only on the Nexus 10. Attempting to install this firmware on incompatible models may inadvertently brick the device. Verify the model number of the device by navigating to Settings >> About tablet.
8. If the device is stuck at booting or is experiencing boot loop issues, perform Wipe Cache Partition and Wipe Dalvik Cache a few more times before rebooting.
9. Allow newly installed ROM to stabilise for five minutes before you start working on it.
How to Install Official Android 4.4.2 KOT49H KitKat Bug-Fix Update on Nexus 10 [Non-Rooted]
Step 1: Download Android 4.4.2 KOT49H KitKat firmware for Nexus 10 on the computer and rename the file as update.zip.
Step 2: Connect and mount the Nexus 10 USB mass storage on computer using USB cable.
Step 3: Copy the update.zip file to the root folder on your tablet.
Step 4: Power off the tablet and let it boot into Bootloader Mode. To do so, Press and hold the Volume Up and Power buttons together until the Fastboot menu with START icon appears on screen.
Step 5: Follow the onscreen navigation instructions and then tap Volume Up button several times to enter Recovery mode. Then press Power button to confirm progress into recovery.
Step 6: An exclamation mark should now appear on the tablet screen. Once again press and hold the Volume Up and Power buttons together to enter recovery.
Step 7: Choose update from SD card option and then select update.zip file using Power button. The firmware installation should now begin.
Step 8: Once the Android 4.4.2 KOT49H firmware is completely installed, the tablet will automatically reboot. It may take about 5 minutes for first boot to complete. So, do not interrupt the process.
Your Nexus 10 is now updated to the latest Android 4.4.2 KOT49H KitKat official firmware. Go to Settings > About Tablet to verify the firmware version installed.
Now that you have installed the latest Android 4.4.2 KOT49H bug-fix update on your Nexus 10, you can root the same using SuperSU tool with CWM or TWRP recovery (scroll down to see the rooting guide).
How to Install Official Android 4.4.2 KOT49H KitKat Bug-Fix Update on Nexus 10 [For Rooted]
Step 1 - Download Android 4.4.2 KOT49H official firmware for Nexus 10 on computer, depending on the previous version installed (use the links below).
Step 2 - Connect and mount your Nexus 10 USB mass storage on computer using the USB cable.
Step 3 - Copy the Android 4.4.2 zip file to root folder on your tablet's internal storage.
Step 4 - Switch off the device.
Step 5 - Boot the tablet into Bootloader Mode. To do so, press and hold the Volume Up and Power buttons till the Fastboot menu and START icon appear on screen.
Step 6 - Follow the onscreen navigation instructions and then tap Volume Up button several times until the RECOVERY menu appears. Then hit Power button to select it.
Step 7 - In ClockworkMod recovery, browse and select "flash zip from SD card" option and tap Power button to select it.
Step 8 - Hit the Power button again and select "choose zip from sdcard".
NOTE (Optional): You can turn OFF signature verification from the "toggle signature verification" option to avoid conflicts during firmware installation.
Step 9 - Use volume keys to navigate to firmware zip file and select it using the Power button. Confirm the firmware installation on next screen and the installation process will begin.
Step 10 - Once the firmware is installed, go to "+++++Go Back" and reboot the tablet by selecting "reboot system now" from the Recovery Menu. The tablet will reboot now and it may take about 5 minutes for first boot to complete. So, please be patient.
Your Nexus 10 is now running on official Android 4.4.2 KOT49H Bug-Fix update. Go to Settings > About tablet to verify the firmware installed.
How to Root Nexus 10 on Android 4.4.2 KOT49H KitKat Bug-Fix Update
Step 1 - Download Android SDK from the Android Developers website and install with USB drivers.
Step 2 - Download Fastboot and extract it to android-sdk-windowsplatform-tools directory. Create a new directory if it does not exist.
NOTE: Skip Steps 1 and 2 if you already have them.
Step 4 - Download SuperSU v1.80.zip for Nexus 10 on computer.
Step 5 - Connect and mount your Nexus 10 USB mass storage on computer with USB cable.
Step 6 - Now copy/paste the UPDATE-SuperSU-v1.80.zip file to the root folder on your device's internal storage.
Step 7 - Power off your tablet.
Step 8 - Download CWM 22.214.171.124 and save it to the android-sdk-windowsplatform-tools directory on computer.
Step 9 - Now boot the tablet into Bootloader or Fastboot Mode. To do so, press Volume Down and Power keys for a few seconds until some text appears on the screen, which confirms entry into Bootloader Mode.
Step 10 - Navigate to android-sdk-windowsplatform-tools directory and open Command Prompt (press Shift and then right-click on empty space to open Command Prompt).
Step 11 - Type in the following command and press Enter.
fastboot flash recovery recovery-clockwork-touch-126.96.36.199-manta.img
Step 12 - Once the command is executed, choose RECOVERY option from the Fastboot menu and boot the tablet into Recovery Mode.
Step 13 - In ClockworkMod recovery, navigate to "flash zip from SD card" option and hit power button to select it.
Step 14 - Tap the Power button again and select "choose zip from sdcard".
Step 15 - Now use volume keys to navigate to UPDATE-SuperSU-v1.80.zip and select it using Power button. Confirm the root installation on next screen and the installation process will begin.
Step 16 - Once the root installation is done, hit "+++++Go Back" and reboot the tablet by selecting "reboot system now" from the Recovery menu. The tablet will reboot now and it may take about five minutes for first boot. So, please be patient and do not interrupt the process.
Your Nexus 10 is now rooted on Android 4.4.2 KOT49H official firmware with CWM recovery installed. Check for the SuperSU app in your apps list to verify the root installation.
To ensure the root is installed correctly and working as expected, download and install Root Checker app from Google Play Store.
ALSO READ: Android 4.4.2 KOT49H Bug-Fix Update Rolls Out for Nexus 7 (2013) [How to Install and Root]
[Source: Team android - Install / Root]
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