I Lost My Android Keystore. Here’s What Happened

A developer shares a firsthand account of losing their Android keystore file after a laptop migration and how they recovered using Google Play's Play App Signing feature. The post explains what a keystore is, how Play App Signing separates the app signing key (held by Google) from the upload key (held by the developer), and walks through the upload key reset process: generating a new keystore, exporting a PEM certificate, uploading it to the Play Console, and waiting ~2 days for Google approval. The key takeaway is that Play App Signing enrollment is what makes recovery possible, and developers should maintain encrypted backups of their keystores regardless.