Samsung Galaxy S4 User Manual

Are you trying to use with Gear VR? Cause it won't work, Gear VR works from Galaxy S6 upwards.

Hi oluwaseun. Do you have a lot of apps installed specially those that uses the internet? I'm sure that they're causing your phone to heat up. I'm using a different phone and this happened to me as well. What I did was uninstall some of my apps or put them disabled so they won't run.

How did you root it? I suggest that you unroot your phone and try again. Maybe the root process was done incorrectly.

Hi Lacy. Based on the info you provided, looks like the charging port is broken. Please have it checked again.

Hi Patkelley. Does that happen to messages from all your contacts? Cause if not, maybe this specific contact intentionally does send the message twice.

Hi Dale. That can just be a glitch. Restart your phone then immediately turn on Bluetooth once it starts. Let me know if that works.

Hi Deanna. You may need to have your phone checked. Had a friend with same problem, the cause was that his phone got wet.

Looks like both features you are looking for doesn't exist on the preinstalled camera app of Samsung Galaxy S4. I suggest installing 3rd party camera apps which you can easily find on Google Play store.

 Might just be a glitch. Simply restarting your phone should fix it. If it keeps happening, I suggest installing a different keyboard app. If I may suggest one, it's Swype (link). Been using it since it came out, never had problems with it.

Yeah, definitely a hardware issue. It's either you take it to a service center or repair it by yourself. I found step on how to do it, if you are interested, check this link. Hope that helps!