If your device does not support automatic updates, you will need to install an alternate firmware (ROM).
System updates are done individually for each Android smartphone or tablet. Therefore, there is no universal software or software for updating Android.
You can update Android using the system update tool, download the update for your device in the list and save it to your SD card or internal memory.
When updating Android, you need to perform advanced system settings.
After updating the firmware, you may need instructions on how to get root access to your device.