restore after firmware upgrade failed?

Question

I have upgraded firmware 17.5.13 MR13 to 18.0.2 MR2. even though the firmware upgrade was successful I can't restore the backup from the earlier version and the system has factory-reset to the default configuration. 
 is there any solution to do the firmware upgrade without loosing the configurations? 
 Thank you..!

Vishal_R · Accepted Answer

Hi sasindu perera

As of now MR-13 to V18 upgrade support not taken in V18 current latest release.

Note: The upgrade from version 17.5 MR13 to 18.0 will follow soon.

Reference : https://community.sophos.com/products/xg-firewall/b/blog/posts/xg-firewall-17-5-mr13-released

Upgrading from SF 17.5 MR11/ MR12 to v18 MR-1-Build396 is supported.

so If your XG running with version prior to MR-13 release then it should work for you OR may wait for the V18 release version which covers MR-13/MR-14 upgrade support and then you may go for upgrade with that version without loosing configuration.