The contacts should sync. Make sure you don't disable that. If you do, just go into Settings > Accounts > click the google account, check contacts and then hit sync. You'll get your contacts instantly. Your second problem is just weird. Clear the data on the play store on your phone. Do you know how to do that? Ok, quick correction/lesson: When it says an app/service uses 33% in the battery report, it means it used 33% of used power. So, for simple math: If you used 50% of your battery (according to the overall battery readout) and it said bluetooth used 50%, it really means Bluetooth used 25% of the battery. Simply put, it means "of what you used, these used the following percent". But still, 33% of any significant battery usage (33% of 50% is still high for bluetooth usage) is absurd for a radio that was turned off. I would recommend a factory reset. If the problem doesn't go away after that, return it. You likely, and unfortunately, have a defective bluetooth radio. It happens, so a replacement is probably required. It probably is a limitation of the Kindle reader. You should email the app author and suggest that the app look for ebooks in the external SD card, too.