How do you get deleted memories back from snap chat if they weren't backed up?

If your Snapchat memories were not backed up, recovering deleted memories directly through the app is not possible, as Snapchat does not store them on their servers. You can try checking your device's photo gallery or camera roll if any screenshots were saved. Additionally, if you have a backup of your device from before the deletion, restoring that backup may recover the memories. Otherwise, it may be challenging to retrieve them.