Hi, i changed the battery, but now I have kind of a situation with this. My brand new battery is losing energy pretty fast , until 2%. When this reach 2% I can use the tablet for more than 10h with the screen on, or more. But if I use it for 2 h , in 2% , an then I close the screen for 5 minutes, the tablet shut down , and I can't open it until I put back the charger. Even though I have plenty of juice in the battery. How do I fix this ? Is there a way to recalibrate the software? I already tried to connect and disconnect the battery and charger back to 100. It doesn't work. I reinstalled the latest version of software. Doesn't work. Can anyone help me ?