How to hack into my iPhone 5 to delete messages

Okay so my school (private school) took my phone and they are allowed to look through my phone because it is a private school. Is there any way I hack into my phone from my dad's phone or my computer to delete the text messages or just completely wipe it? My phone is jailbroken so if that helps. I need to know quickly because I could get in serious trouble if they go through my texts.

Black, Red, or White iPhone case?

I have three case color options for the black iphone.
Black, red, or white
On a black iPhone, which color looks best?
Also, the red case will have all of its money donated to project red for african children

How to fix this iphone 4 screen?

I have a iphone that screen isn't cracked but the touch doesn't work, turns on touch doesn't work. I can't touch the icons nor slide the unlock scroll

When does jailbreak come out for each iOS update usually?

I've finally decided to jailbreak my iPhone 4 after pondering it over a bit, and it's my first time.
I've already synced it, and backed it up to iCloud, but it seems as if the version for the most recent iOS update for iPhone 4 hasn't come out yet.
When does a new version usually come out? How long does it normally take?

IPhone 4S (latest version) problems

Ok, so my iPhone 4S (latest version) has been having a lot of problems lately. I got it on Christmas, and everything was fine for a couple of months. Pretty recently, it has been causing trouble. My first problem is that whenever I try to turn it off, it starts back on. I press down the lock button, and I wait until i see the "Slide to turn off" bar, and I slide it. It gets the screen like it's turning off, but after a few seconds of blackness, the apple logo reappears and the phone turns back on. I've tried resetting it and cleaning the charger port with a tooth brush, but nothing works. My second problem is the volume. When I try to listen to music without headphones, it works great for a few minutes then the volume bar disappears. The music is still playing, but I can't hear anything. The volume is totally shut off. When I plug my headphones in, everything works perfectly. What can I do to solve my problems?

How to sign up for Instagram?

I'm trying to sign up for Instagram on my iPhone. But when I'm done, it keep on saying "Sorry, your IP Address is an open proxy" please help