App not working on Samsung Galaxy S4

[Denise]

I have activated all countries for distribution so please cna you try again. Thanks Denise

[Denise]

I have activated all countries for distribution so please can you try again in about 8hrs. Thanks Denise

[Kateryna Grynko]

Thank you, we'll try.

[Kateryna Grynko]

Hi Denise,

We couldn't test this - it's not available on any device for us.
Please share your project with a href="mailto:support@appery.io" rel="nofollow"support@appery.io/a and tell us its name.

[Denise]

I have shared it and the app name is Rehab

Thanks
Denise

[Kateryna Grynko]

Hi Denise,

Could you please send us to a href="mailto:support@appery.io" rel="nofollow"support@appery.io/a exactly that APK file you cannot install?

Please tell us in detail what is the problem there. Are there any issues inside the app or you cannot install it at all?

The app works for us.

[Denise]

I realised that I had not set the version to be compatable with Android 4 so tried to release it for Android 4 but now google says that it needs to be zip aligned? Please help?

Thanks
Denise

[Oleg Danchenkov]

Hello! zipalign utility required by Google. Please take a look here for more information
http://developer.android.com/tools/he...

[Denise]

Thanks I did follow those steps and now have this error
Upload failed

You uploaded an APK that is signed with a different certificate to your previous APKs. You must use the same certificate. Your existing APKs are signed with the certificate(s) with fingerprint(s):

[ SHA1: 3C:40:92:69:5D:CC:00:86:B5:80:88:54:63:6F:19:99:C2:63:53:92 ]

and the certificate(s) used to sign the APK you uploaded have fingerprint(s):

[ SHA1: 8D:BD:B7:F3:F5:EB:49:7F:A2:09:AD:EF:96:D6:6E:14:D7:87:A7:F8 ]

I didn't change anything other than the Target SDK version?

[Maryna Brodina]

Hello! Could you clarify do you use your own or autogenerated certificate?