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EliteAndroidApps / WhatsApp-Key-DB-Extractor

Allows WhatsApp users to extract their cipher key and databases on non-rooted Android devices.
GNU General Public License v3.0
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Keep getting error: INSTALL_FAILED_VERSION_DOWNGRADE #13

Closed Bl4d3s closed 6 years ago

Bl4d3s commented 6 years ago

Hello,

I want to extract the whatsapp DB on my nonrooted Oneplus 5t (Android 7.1.1 /OxygenOS) to modify it and then restore the backup. But I keep getting the error Install_failed_version_downgrade. What I tried: Used apktool to extract the current version of Whatsapp and the Legacy version your program downloads. Then I modified the version of the legacy to match the current version (in AndroidManifest.xml). After that I repacked the Legacy APK and signed it with a certificate (otherwise I get the error that no certificates are used to sign the apk). But then I get the error that the certificate doesnt match with the certificate of the original APK.

What can I do?

bjohas commented 6 years ago

See https://github.com/EliteAndroidApps/WhatsApp-Key-DB-Extractor/issues/10

bjohas commented 6 years ago

This post https://github.com/EliteAndroidApps/WhatsApp-Key-DB-Extractor/issues/10#issuecomment-386794491 offers a workaround if you can get hold of a spare Android 6 device to extract the key.