I have read previous messages relating to the inability to update due to insufficient space, but my question is a little different. I have a Galaxy Ace GT-S5830. When I bought it secondhand, WhatsApp was working perfectly. Then I received a message saying that my version of this expired (at the end of June, I think) and needed updating. When I attempted to do this, yes - I got the "insufficient space". So I deleted all unused apps, still no luck. So I deleted WhatsApp and reinstalled it. According to my Settings (Manage Applications, WhatsApp), it's there loud and clear: Application 28.59MB, Data 8.07MB. But it won't show any received messages because the messages page won't display. What I get instead is a message to back up with Google Drive. So I select a frequency, choose an account (my gmail) and press to install Google Play PEGI 3. I accept the things that have to be accessed... and then I get the Insufficient Storage again. So I view that, and it is: SD Total space 14.14GB, available ditto, internal phone available space 18.54GB. If I click the WhatsApp icon, I go back to the Google Drive setup screen again. And so on ad infinitum. Having tried everything since the end of June, I am now just about desperate. Can anyone please advise how I can open the app that appears to be installed? Many thanks, Alec.