Instructions:
- stop your wallet and/or daemon
- locate the folder with the blockchain folders (usually ~/.pivx/). More details how to
find this folder: Location of PIVX Configuration Files
- do a complete(!) backup of this folder in case something goes wrong
- completely remove the folders "blocks", "chainstate", "sporks" and "zerocoin"
- download one of the snapshot-files (preferably the newest one) above into this folder
- unpack the snapshot file: 'unzip <
filename.zip>'
- the folders deleted above are now replaced by the ones from the snapshot
- restart your wallet and/or daemon