Android Question Problem with key certificate.


I get this error when updating my app after uploading Apk:
You uploaded an APK that is not signed with the upload certificate. You must use the same certificate. The upload certificate has fingerprint:
SHA1: 75:D1:.....
and the certificate used to sign the APK you uploaded has fingerprint:
SHA1: DD:2B:.....
Can anyone help me?

more info:
1. I didn't opt to let Google sign my APK for me
2. I use debug key. (I know I did something wrong. This was my first application and now after 10 million installs I can't change or republish it)
3. My B4A project was well compiled, signed and published with old versions of B4A
4. I recently changed my PC.


B4X founder
Staff member
Licensed User
Longtime User
Upvote 0