I am attempting to install a config file onto a Balance 710 test unit, where the config has been copied from a working 710 device. This is in order to analyze any immediate configuration changes when later upgrading to 6.2.2.
However, the unit I am carrying out this test on has been factory reset to firmware 4.5.0, and will not accept the live config from the unit on 5.4.9. Therefore I tried to update the test unit to 5.4.9 (firmware file was obtained from peplink.com) but it states that the image file is not being accepted.
Can anyone offer a solution or alternative method? Do I need some intermediate firmware between these two? I did search for a firmware version between the two but could not find any.
Thanks in advance for any help.