Jailbroken iPhone won't connect to the Internet?

My phone will only connect to the Internet via wi-fi, when I try to get on without wi-fi it says "could not activate cellular data" I've tried going to settings and the cellular data says its on. I tried calling sprint and after about 30 min he couldn't figure out the problem. I have restarted the phone. My last option is to restore it which I don't want to do unless I have to because that would mean losing my jailbreak. This all started happening after I switched over to the galaxy 4 but then returned it and switched back to my iPhone. Does anyone know how to fix this issue?

How to delete iTunes songs with exlamation marks?

They're on the 'my iPhone' section. I deleted them on my phone, so that I could add the album again with the cover art. However although they are no longer on my phone, the songs appear on my laptop iTunes with exclamation marks next to them. Pressing delete does nothing, and I can't add the songs again because it just comes up with 'can't be added to your iPhone' or 'these songs are already on there' or whatever. I just really want the music back. How do I delete them?

How much would my iphone 5 be?

So I have an iphone 5 used for about 4 months now and it's in good condition. I wanted to know how much I could sell the iphone 5 used because the regular online price for brand new is $649, and I want to get the galaxy s4 and online it says it's $500… So could I get my iphone 5 for $550 and get the galaxy s4 for $500 or is the galaxy s4 more or what? Btw I have sprint, so would their be a fee to activate my new phone? Thanks!
(I'm tired of the boring iphone 5 and also do you think the new ios 7 going to add more customization?) thanks again…

Will a T-Mobile SIM work in a locked iPhone 4?

I'm getting an iPhone 4 tomorrow which is locked to Orange. I have also been bought a T-Mobile SIM only contract. I was wondering if it is possible for a T-Mobile SIM to work on a locked Orange iPhone 4. I have checked other posts, and most people have tried it and say yes, but there's some uncertainty in my mind. Can I please have a certain answer?

Where can I buy good quality iPhone screens and colour conversions?

I need to find a trustworthy supplier for all types of iPhone screens. All screens must be good quality, have an LCD and touch digitiser pre-assembled and fit GSM versions of the iPhones. Prices must range from £20 for 1 screen or £30 for the full housing. I need a supplier that can deliver quickly in the UK and guarantee my satisfaction. Thanks a thousand times to anyone that can give me a good answer because I've searched for countless hours and all I can find are Chinese con artists.

My iPhone 5 is having messaging problems?

I will send texts and they will go through, but I won't receive the other people's messages until, at the most 2 hours later and I will get like 10 messages all at once! Its So annoying! And the weird thing is, whenever I call someone, the texting will be acting fine. I was on the phone with Sprint for nearly 2 hours yesterday, and they told me to restart it, put it in airplane mode, reset the network. All of them told me the same thing and none of the solutions helped. And I really do NOT want to factory reset my phone. I don't think it will help.

Does anyone have the solution or is anyone else having the same problem on their iPhone at the moment? I heard this could be a widespread problem with iPhones sometimes, but its getting annoying. I've had this problem since 12 PM yesterday, (5/21/13).

Call Of Duty Online Data Usage?

Okay, so every month we receive our internet bill stating we go over our monthly usage by, on average, 40GB/month. My parents constantly blame me for this as they don't see any other reason as to why we're going over.

Just to state: there are 4 computers in the house, used daily. 4 iPhones, 1 iPod touch, 1 iPad.
I play on average 1/1.5 hours per week night, and maybe 7 hours over the weekend (max.), so in total per week about 14.5 hours. I tend to host the lobbies on CoD Black Ops 2 (PS3), as I have the best internet.

Can my online playing be the soul reason to the internet allowance going over every month?
Or what other causes could there be?
We try to call to see what uses this data but we're not allowed to know due to the companies law or regulations…
If you can please state how much data my playing takes up (per hour), as it would be useful, here is some of my set up information which may / may not be useful:

I use a PS3 Slim, 160 GB, 1080p Television (no 3D), HDMI input to my television, I also use turtle beaches, my internet is plugged directly to the PS3, through the internet in the electricity lines.

We use a BT Home Hub which out puts a Wi-Fi network, it is also connected through the electricity using 200mbps plugs, which connects to an apple router to create a second Wi-Fi network, and another router to create one more Wi-Fi network (3 in total), and the last one is used for my PS3 direct plug in. All the computers work over Wi-Fi.

Thanks for answering, any answer is appreciated!
Max

My iphone screen turned grey and glitchy?

I don't remember that i dropped it or if it fell in water, but i turned glitchy long time ago. Just now when i tried to unlock it the screen went all grey, after trying several tries of sleep and switch-off and stuff, the screen changes everytime i open the phone, i.e one its grey then white and black then black (but not off) and sometimes rainbow glitchy.
Its a iphone 4 that's warranty is done, jailbroken and had past problems (broken screen, dead battery).
The phone itself is still making noise i.e when trying to blindly type tha paasword, but i can't.
What should i do, do you think if i can take it torepare shop they can fix it.