Does the galaxy S4 seem a lil bit jittery to you?. Are you interested in adding a bit of extra speed to the device without rooting, and switching the stock touchwiz rom around?. Here's a pretty simple trick to add a bit of extra speed to the device and also gives you the developers mode on the Galaxy S4 which Samsung has quite frankly decided to have hidden from the average consumer in such a simple way. Any questions? Just ask and if u thought my video was helpful.. be sure to like and share to other.