You can check what version you have in the Menu
NOTE - Be sure to only use the correct Firmware for the model of scope you have.
You should choose the EN Version. Some devices have several versions for different markets
You will need a Micro SD card of no more than 32gb for this:
This link will take you to the international PARD website to download the software
You should always right down your settings and it's a good idea to verify the zero (if its a scope) afterwards.
If you aren't sure - please ask us first