The apk must be signed with the same certificates as the previous version while uploading apk on market

Question

I have created an application and published on android market. now i want to publish its 2nd version. the few thing i want to make clear:

1. I have kept same package

Answer 1

it's imposible bcs when we are creating key store that is for publishing our application to android market to the most first time.now say if u need to update it latter on u need to create updation on existing key store.in ur case u need to make another newly key store and make it sign again and put that signed apk & key store for future reference..that's only the posiblity