IPhone 4S sceeen black but works?

I press the home button, and siri pops up, but I can't see anything, I just. It's just a black screen, At first I thought it died, but it's fine

Can I use a portable Wi-Fi hotspot router for my iphone 4?

I have an iphone 4 that is non activated. I also have this app that lets me make calls and text over Wi-Fi. I was wondering if I bought a hotspot, could I use it for my iphone. Also, does anyone know of any good & affordable portable Wi-Fi hotspot routers.

I'm trying to buy an iPhone 5 off of eBay?

Okay so I'm trying to buy a iPhone 5 off of eBay and I found one but it says "Apple iPhone 5~16Gb~Black and slate~Smartphone IOS7 lock"
okay I know everything else but it says lock at the end and my mom saying you can't get it because it's locked and what you gonna do with a locked phone. I need help is my mom right or is she right if so what does. "Lock" really mean on eBay.

How to clean Ringke Fusion iPhone case?

I have the mint green case, and I've only had it for a few days and it's already getting dirty (I guess due to my makeup). I haven't seen any sites or anything on how to clean it and what products to use, so does anyone have any suggestions? I thought I'd ask before I mess up one of my favorite cases.

Should i trust this eBay Seller?

Okay here's the deal! This eBayer is selling a iPhone 5s that i'm interested in, however, i'm new to eBay and do not know who to trust yet, would someone be kind enough to check his eBay account and tell me what they thing?

http://www.ebay.co.uk/...ossiblle48

He has 91 feedback's, All 100% positive. Hes being a member since 2006! Have sold quite few items that vary from £300 to £1000 all with positive feedback in return!

should i trust him?