Group messaging not working on jailbroken iPhone 4?

I have an iPhone 4 that is unlocked to work on T-Mobile and jailbroken. A friend of mine has been trying to start a group message and for some reason, it isn't working. I went in my settings to make sure group messaging was turned on, and it was. I'm almost positive I've done group messages before with my dad and sister. My dad has a jailbroken iPhone 4 that runs on Verizon and my sister has one that runs on Sprint and it worked fine. Can someone tell me how to get it to work this time?

ITunes will not let me delete songs from my iPhone 4s?

I've tried everything. And I know for a fact that I'm under "music." I've synced the phone, etc…

Does replacing the glass on a iphone 4/4s void the warranty?

I've seen a few iphone 4/4s that were baby blue, lime green, and a red one, that have replaced the glass to a custom glass. I was just wondering if that would void the warranty on the phone?

Does ios 5.1.1 Delete my texts, pictures, or my apps and their data?

I want to update my iPhone 3GS 32GB (never jailbroken) to ios 5.1.1, and i get this message: Updating to iOS 5.1.1 will backup and restore the apps, media, contacts, calendars, notes, text messages, and settings on your iPhone.

What does it mean by backup and restore? Does it mean it will delete it?

Does Internet search use more power on a 3G or 4G network?

I have an iPhone and previously had a droid. I'm on the Internet a lot, but it's like regular Internet search. It isn't videos and stuff like that. It's usually google or Facebook or something. I'm on a 3G network right now and able to stay up there for about 8 hours (including other stuff). But If I was on 4g would it use less power.

How to convince Verizon to give a early upgrade?

I want to get the Iphone 4s but my upgrade isn't until 10/24/12 which is only a few months away but my phone is a piece of sh! T. The earpiece barely works, people can barely hear me when they call, it always freezes, all in all it's messed up! I really want my upgrade now! How can I convince them to do it early! I'm going to the store tomorrow!

I dropped my iphone in water a few months ago?

I dropped my iphone in the toilet a few months ago i let it sit in rice for like a day maybe more. But i need it fixed. Is there anyway i can?

My iPhone 4 speakers stopped working?

Ok so I accidently dropped it in water. But I didn't let it soak or anything. I got it out right away and dried it off. But without me holding the On/Off botton it was like "Slide to power off." so I turned it off then back on. I noticed that when I started to play my music with out my headphones no sound was coming out of the speakers. My music, alert tones, and text tones don't come out of my speakers. But when someone calles me the ringtone sounds.
I look for everything
The mute button thing on the side isn't on silent
my volume is turned all the way up

IPhone shuts down whenever I try to crop a photo?

It only happens with screen shots. Why is this? My battery percentage is going sort of fast too. I have heard people having the same problem. What do I do

IOS6 BETA won't let me download apps?

I've had iOS 6 beta for a little while now (iPhone). Why and how can I fix this? It won't let me apps on the apps store.