The amazon app store disappeared from my HTC incredible and I can't reinstall it. Following Amazon's instructions, I get a message with the link, click on it and get "download unsuccessful." I've browsed extensively on this subject, trying all suggestions (IOS is up to date, all caches cleared, allowing unknown sources), ultimately performing a factory reset of my phone, which didn't solve the problem. I haven't seen any other people with this exact problem. Does that suggest the problem's with my phone or my SD card? Random question: Could this be a result of the change from Google market to Google Play? Thank you.