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I had my keystore saved in my PC, but one day my hard disk died and the PC overheated because of too much dust, so I had to reinstall Windows completely, and lost the keystore...

Is there any possible way to update my application on Google Store with a new keystore or somehow get the SHA1 fingerprint from the old one, or something? Anything??

Blay-Z
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  • You can publish an update with a new keystore, but all your users have to uninstall previous version & install the new one – Shayan_Aryan Feb 06 '16 at 21:26
  • I can't submit any update because it was built with a new keystore (a new SHA1 fingerprint). Should I consider deleting my app from Google Play completely and uploading it again but with the new keystore? – Blay-Z Feb 06 '16 at 21:35
  • "and lost the keystore" -- restore it from your backup. You *do* back up your computer, right? – CommonsWare Feb 06 '16 at 21:37
  • I just checked the entire external hard disk for backups and apparently, I have saved absolutely everything expect that file.. I can't believe this – Blay-Z Feb 06 '16 at 21:55
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    Possible duplicate of [I lost my .keystore file?](http://stackoverflow.com/questions/4322367/i-lost-my-keystore-file) – hichris123 Feb 06 '16 at 22:11

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Unfortunately, what you're asking isn't possible. I tried this myself, and had to create a new application on the Google Play Store due to the what is mentioned in the Google Developer Docs:

Warning: Keep your keystore and private key in a safe and secure place, and ensure that you have secure backups of them. If you publish an app to Google Play and then lose the key with which you signed your app, you will not be able to publish any updates to your app, since you must always sign all versions of your app with the same key.

Demitrian
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