Wallpapers on my iPhone not good quality

It's the iPhone 5, and I have one of the background app, but it's not good picture quality. Is it my phone (it's retina display I'm pretty sure) or is it just the app?
And if an app closes out on you (glitch) is it your phone acting up or just the app? The app froze and had black on some of the picture, and then just closed out.

Should I invite him to my party?

Well i'm having my birthday party soon and Ii'm inviting alot of my friends to this party but now here's the problem. I have this friiend who really hasn't acted like a friend he always says i don't have any friends or i'm not social or stuff like that. Well he doesn't even realize it hurts me and he brushes it off as were joking. Well now he expects me to invite him to my party he's been asking me the same thing all week., but I don't know really how to say no you haven't been acting like a friend lately. Well before that I told my friends to not tell him but then I forgot some of my friends I feel like are the most blabbermouths in this school and told him. And now some friends from the person I don't want to invite want to go and I don't like either because they both always ask me for my iphone. Well my question is how can I just tell them no without hurting their feelings i'm a kid so can I just tell them this "The amount of people is 20 and I already have 20 people" Can you guys like help me find a way to tell them that i'm not inviting them and in a way that can't hurt their feelings?

IPhone display not working properly after disassembling?

I disassembled and reassembled my iPhone 4 to try to fix a problem with the audio compiler (for the last two weeks, no one can hear me on calls) with a fix I found online to secure the connection. I followed a video tutorial for disassembling and reassembling. The first time I turned it back on, the screen was really faint and shaky, but I could still see the apple logo and icons. I disassembled again and reassembled to check all the connections.

The second time I turned it back on the screen is just blue with lines. What did I do? I have checked the connections again and they seem to be fine. I'm going to lose my mind, now my phone is completely unusable. Please don't say "take it to a repair shop like you should have done in the first place." I can barely afford groceries, this phone was a gift I certainly couldn't have afforded. I do not have a back up phone that will fit my sim card.

Any ideas about what is wrong and what can be done to fix it will be appreciated more than you know.

Iphone 5 Backorder for Verizon?

I have recently ordered the iphone 5 from Verizon on saturday the 6th of October and they said we will recive an email when the phone ships however I didn't know how backordered they are or if they are a bit ahead of schedule. I'm sure the ship by date is a worst case seniero but I tried to do some research myself and can't quite find what I'm looking for.

IPhone 4s Not Loading Any Emails?

My email is not loading and I have nothing in any of my inboxes or files. I get a "Connecting" message, "Downloading" message, with another message saying "Dowloading 1 of XX" but nothing comes through. Right now, all my boxes are empty. Any help would be appreciated!

I want to get into electronics repairs.how can I start?

So I have been talking to one of my friends and he mentioned how he sold his broken iphone 4 with a cracked screen to someone and the guy fixed it and sold it making a few bucks out of it. I'm wondering if there's any way I could learn how to fix electronics (such as an xbox, ps3, phones, tablets etc) and if there are good places to go buy some broken electronics to fix.

Do any of you have experience in doing this as a full time or a side job?

Does AT&T Insurance Cover Water Damage? Iphone 4s?

I have an iphone 4s i got 3 or 4 weeks ago with an waterproof case on. Well anyways the case sealant broke and i was in my pool i didn't notice water was getting in beaucse it died while i was in the pool. Now it doesn't turn on. Will Insurance cover this? I have insurance

ITunes not working for my iPhone?

I downloaded iTunes onto my laptop and was able to figure out how to put them on my iPhone. Well, only some of the songs actually downloaded on the phone and will play. The others did download, they show up, but they will not play. The ones that won't play has gray text and the ones that do play are in black. How can I get all of my iTunes to play? I really love some of the songs that won't play!