I have overall excellent experience with my white 920.
The battery life was not great in the first few days and then it started to sustain longer and longer until last week. I could feel that the phone got hot and the battery drained very quickly. I made sure that I turned off all apps and closed down all connections (blue tooth, wifi, nfc and etc) but it did not help. Sometimes it could last two days and others, only a few hours.
I eventually found the cause, of my phone at least. It was the "Internet Explorer". If I browsed a web page with auto refresh function, for example, AAPL: Summary for Apple Inc.- Yahoo! Finance, even I closed it using the back button, it still functions in the background and the constant refreshing drains the battery. A power-off-and-on would not solve the problem since after the phone restarts, it remembers the last active webpage and it will keep refreshing and draining the battery. What was the solution? To close a web page properly, you close the tab first and use the back button. This has solved my problem perfectly. As long as I close all the tabs before exiting internet explorer, the battery always works fine. I can also replicate the draining problem by leaving one of those page on.
So far, I had all the four famous problems and three have partially been solved including the battery one. I had the black screen during a call. A blow on the proximity sensor solved it. I had dust piled up on the front camera. Blowing air throw the earphone with a compressed air can solved it mostly. I then used a small piece of tape to cover the earphone outlet and it seemed to work fine so far (I seldom use an earphone). The only remaining problem is that the brightness does not work perfectly. It is not a big deal compared to the other three. So overall I am happy.
The battery life was not great in the first few days and then it started to sustain longer and longer until last week. I could feel that the phone got hot and the battery drained very quickly. I made sure that I turned off all apps and closed down all connections (blue tooth, wifi, nfc and etc) but it did not help. Sometimes it could last two days and others, only a few hours.
I eventually found the cause, of my phone at least. It was the "Internet Explorer". If I browsed a web page with auto refresh function, for example, AAPL: Summary for Apple Inc.- Yahoo! Finance, even I closed it using the back button, it still functions in the background and the constant refreshing drains the battery. A power-off-and-on would not solve the problem since after the phone restarts, it remembers the last active webpage and it will keep refreshing and draining the battery. What was the solution? To close a web page properly, you close the tab first and use the back button. This has solved my problem perfectly. As long as I close all the tabs before exiting internet explorer, the battery always works fine. I can also replicate the draining problem by leaving one of those page on.
So far, I had all the four famous problems and three have partially been solved including the battery one. I had the black screen during a call. A blow on the proximity sensor solved it. I had dust piled up on the front camera. Blowing air throw the earphone with a compressed air can solved it mostly. I then used a small piece of tape to cover the earphone outlet and it seemed to work fine so far (I seldom use an earphone). The only remaining problem is that the brightness does not work perfectly. It is not a big deal compared to the other three. So overall I am happy.