There's a problem with Viber app on my iphone?

It is about 3 days, that I have problem with Viber app
I can't send txt or call, sometimes it takes to long to send, I don't receive any txt and couldn't answer to any call. Most of the time when I want to send a txt it is remaining in "sending" status and fail after waiting for 10 mins
How can I solve this problem?

Where can you buy micro sims?

I've just bought an iphone 4S sim free, and I tried cutting up my original one but I messed it up… It's too late in the day now for me to go into a phone store, but would I be able to find micro sims in supermarkets or corner shops etc? Because i always see loads of normal sims on offer in corner shops, so I want to know if it's the same for micro sims.

I really need to know how to unlock my iphone 4?

Well i don't have the original sim and only have the sim i want to unlock to, also it it on 5.1.1 and my base band is 4.12.02 any help would be much appreciated i really need to get this iphone unlocked.

My iPhone 4 won't receive 3G?

I got my iphone 4 about a week ago and it won't get a 3G signal. It hasn't had one since i got it and i don't know if it is the phone's or O2's fault, i've tried resetting the network settings and still nothing has happened… I'm not sure what to do, what do you think the problem is?

What do i do if people broke my iphone?

Ok, so i got steam into my iphone a few weeks back and i think i've pretty much broken the hardware. It started off saying that there was no sim detected and then it said connect to itunes etc to do a restore but it didn't work. My dad took it to a small private shop that unlocks iphones today but apparently it was really dodgy because they said to come back and collect in a few hours. They said if they could fix it, it would cost £35. My mum collected it and she said the people looked really dodgy and they said they couldnt do anything but didn't charge us anything. My parents suspected that they might of taken out some parts to keep or swapped things and obviously they have: most likely the battery because now its COMPLETELY dead. Not even a display saying to connect to itunes. I don't want people to tell me that i was stupid for getting steam into it in the first place or how stupid it was to leave it with the people. I have no insurance on it and i want to know if i can sue the people for taking parts because its a sneaky business theyve set up. Or do anything to compensate. Would like to bring in the police or whatever-i know it was my fault for breaking it, but the people should Definitely NOT BE CHEATING PEOPLE and i'm pretty sure its illegal.anything so the people are shut down or so i'm given some compensation as theyve stolen my parts. At the mo, not too sure what else they've done. Thanks for help

Added (1). Unfortunately i've had it for a bit over a year so no warranty.

How hard is to fix a cracked screen on an iphone 4CDMA?

My iphone 4 has a shattered screen, i wana replace it myself because it will be alot cheaper. I have repaired iphone 3gs, 3g, and ipod touches in the past so i'm not new to this. How hard is it or how complicated is it to get the job done? Also my phone is jailbroken, will there be any probability that by the time i put it back together when i started apple will make me restore it?

IMessage on mac for non-iPhone users?

Ok, so i've got iMessage set up with my mac & I love being able to text straight from the computer.

My question is. Is there any app that I can use to text all my contacts including non-iPhone users?