7 Steps Checklist before upgrading your F5 BIG-IP

Hello, just a note that happened to me. I have many upgrades since version 9. In recent upgrades I have some problems when in the new bigip version losted configurations from the previous version. This happens in general when you install the new version, then one week/month after you run the switchboot to the new version. But this in my case is true and false, because when I installed and the next thin is to reboot. I checked the configuration installed from the previous partition/version and I lost configuration on the way. The 'Install Configuration' option has no effect in some cases. So after some ungrateful events, I have another must step, restore the backup I made before the upgrade. With this step I assuring that I'm installing the latest configuration.