If Gmail SMS recovery codes are not arriving, troubleshoot by checking for carrier shortcode blocks, waiting out request limits, and ensuring strong signal. If recovery links are invalid, use an incognito window, disable VPNs, and try using previously trusted devices or 168-hour wait periods. For detailed troubleshooting, visit Google Account Help Google Help
“Securing Gmail Account Recovery: Mitigating SMS Link Vulnerabilities” gmail password recovery via sms link fix
Device Issues: Ensure you have a stable network connection and that your phone is not in "Do Not Disturb" or blocking unknown senders. If Gmail SMS recovery codes are not arriving,
Users often report a "loop" where Google sends an SMS code, but then immediately asks for a code sent to the same email they are trying to recover. waiting out request limits