Upgrade process
- First step - visit www.mikrotik.com and head to the download page, there choose the type of system you have the RouterOS installed on.
- Download the Combined package, it will include all the functionality of RouterOS:
Using Winbox
Choose your system type, and download the upgrade package:
Connect to your router with Winbox, Select the downloaded file with your mouse, and drag it to the Files menu.
If there are some files already present, make sure to put the package in the root menu, not inside the hotspot folder!:
The upload will start:
After it finishes - REBOOT and that's all! The New version number will be seen in the Winbox Title and in the Packages menu
منبع :
Manual:Upgrading RouterOS - MikroTik Wiki