Hi Tizen Friends Please note that I am unable to update my existing app on Tizen store with new version due to different author signature. What I can do now although I am using the same secure profile. Any advise? 1 I have the complete source code folder of first version. Can it help to check whether I am using the same secure profile or not? 2 Does it only secure profile and password that make the author signature or anything else? I have just upgraded to SDK 2.2.1 from 2.1 Its very important for me to update the previous version with teh new version instead of uploading new app. thank you,