https://fota.go2alto.com/8175/AltoUpgrade.zip
 
1) Unzip this file to an easily accessible location on your laptop
2) Open a cmd window and cd to the AltoUpgrade directory
3) Check if it is the correct location by typing dir command in the cmd window. You should see a bunch of files.
4) Execute  the following commands in the cmd window
         a)   adbsetup.cmd
         b)   setmytime.cmd <IP address of Alto device>
         c)   upgradeapk.cmd <IP address of Alto device>
NOTE: If any of the above commands fail, please try again, as we've observed timing issues caused by varying laptop performance.