The exact symptom (register() succeeds, no token, no error, stuck forever) Your full environment (Capacitor 8, real device, Xcode/sandbox build, .p8 key) Everything you've already verified (all 10 checks — permission, entitlement, capability, App ID, key, fresh profile, real device, reinstalls) so nobody wastes your time re-asking The relevant console noise (DownloadFailed, sandbox extension) Four specific questions to get useful answers fast