No, you can't revert to a previous software version. Have you checked all your settings? Sometimes updates change/remove/add things. Which phone do you have, what issues are you having, and have you searched the forum for related threads regarding the update?
Johanna1967, we always want to ensure that you’re enjoying your device and able to make the most of it. As tikibar1 has confirmed, the devices are unable to revert back to their previous software. May we ask what concerns you have with the latest software update that has you wanting to switch back? Can you please confirm the make/model of your phone as well?
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