I lost my android apk certificate. I formatted my mac mini and upgraded to a new MacBook Pro. Now I don't have access to the old mac. So there is no chance of retrieving the old keystore. And I am not enrolled in Google Play App Signing yet. If I enroll now, will I be able to update my app?

This is the error I get when I try update my app on play store :

> 
> You uploaded an APK that is signed with a different certificate to
>  your previous APKs. You must use the same certificate.
> 
> 
> 

I know this is a duplicate question but I am asking it again because all the other questions are 3,4 years old. And I read somewhere that it is possible after May 2017 but I don't know how. 

This is the comment I saw on quora (The link to the blog is broken):

<https://www.quora.com/How-do-I-make-a-new-Certificate-Keystore-key-after-losing-the-key-of-my-Android-app>

> 
> No need to Remove Your app from play Store You can Update Your app.
>  it’s Possible now, After May 2017 you can Update your app if you lost
>  your keystore or keystore password. Don’t lose Hope you can update
>  your app using new Keystore file please refer this blog <http://geekcodehub.com/blog/>
>  Code Hub here i wrote how to update apk if you lost your keystore
>  follow the step and create new keystore , I updated my app using this
>  step. you need to enable google play app signing on play store console
> 
> 
> 

Is there any chance to update my current app? Without creating new app on playstore.