Upgrade test (adb install -r <app.apk>) does not work for Amazon Appstore?
<p>When I am ready to release a new version to Google Play store, I usually test upgrade process by downloading an old APK and simulate upgrade with a new APK - <code>adb install -r &lt;app.apk&gt;</code>. </p>

<p>I tried to do the same for app published on the amazon app store, but I cannot do it. When I try to install the new APK via <code>-r</code> switch, the ADB complains about different certificate. Since we do not sign APK during upload procedure to the Amazon App Store, I guess they do some kind of signing before releasing the app. </p>

<p>How can I test upgrade process for the Amazon APK?</p>

<p>I do not have commit that created the APK that had been uploaded to the Amazon APK. I only have the code I fixed. </p>

<p>I tried by downloading app via amazon app store onto my device and then backup it to APK. But during this process I got the error I mentioned on the top of this question. </p>

<p>Amazon developer console does not allow us to download APK as well. </p>