This article is for educational and forensic recovery purposes only. Bypassing iCloud on a device you do not own is illegal in most jurisdictions. The author does not condone the bypass of lost or stolen devices.
If the timing bypass does not resolve Error 61, consider these community-tested alternatives: appletech752 sliver 61 fix
Open Terminal and type: sudo xattr -rd com.apple.quarantine /Applications/Sliver.app/ This article is for educational and forensic recovery