David is frustrated because after upgrading to Android 4.4 Kit Kat, the SD card is useless. Leo says it does break a lot of applications because it prevents apps from accessing the file browser, but it's the right thing to do from a security point of view. How can David root the phone in order to restore the capability?
Leo says that rooting is perfectly safe, and he can go to XDA-Developers.org and look in the forums for step by step instructions on how to root his specific phone's model number. But he may need to have his Boot Loader unlocked in order to do it. Then he can run Clockwork Mod or Cyanogen mod. He should make sure not to take any short cuts. Follow the directions to the letter, other wise he may end up bricking his phone. It's not for the faint of heart, but it's not really that hard. He just has to be careful.