Asus MeMO Pad FHD 10

To upgrade the Asus MeMO Pad FHD 10 you can use several methods mentioned here.

Flash Asus firmware by using Asus Flash Tool.
Step.1 First you need to download Asus stock firmware. After downloading the zip file we will have to extract it.
Step.2 Now download Asus Flash Tool to your PC, install it.
Step.3 You have to install Asus USB driver for Windows PC.
Step.4 Open installed Asus Flash Tool.
Step.5 Getting wipe data "Yes or No" option.
Step.6 Once select model number than select your device firmware zip file, which you have downloaded.
Step.7 Turn off your device and wait 5 to 10 sec. When your device completely switching off connect it via USB cable.
Step.7 Than click together "Volume +" button and "Power" button, it's gonna take the Tab into "Fastboot" or "Download" mode.
Step.8 Serial number should show up.
Step.9 Click on the start button. As soon as you click on the start button, your Tab flashing get started.
Step.9 Compete seems to be a 6-10 minutes. Wait until the progress bar inside turns fully green, which means the firmware has been successfully installed.
Step.10 Then your device should automatically boot.

Another way.
If you want to install an Asus update using recovery – download the firmware, reboot your phone or tablet into "Recovery mode" by "Volume +" button and "Power" button and click “Install update from SD card”.