Google Play App Signing service allows developers to let Google store the app signing key for them. Developers need to use a different key, the upload key, to sign the app before release. The advantage of this service is that with the help of Google support you can generate a new upload key in...
Thank you
I found an easier solution
Where you created my new key via B4X
Then, this program was used to extract the certificate and send them to them
The key was successfully updated