Transferring Data from iPhone 4 to Samsung S3?

I'm currently using an iPhone 4 and thinking of switching to Samsung S3.

The problem now is, how do I backup and transfer my contacts from iPhone 4 to Samsung S3? As what I heard, I have to sync to google etcetc. Not sure how it goes, can anyone help by telling me the procedures?

As well as, how do I retrieve my whatsapp conversations after I have switched to Samsung S3?

Hay day iphone hacks or cheat for free?

Where can i download some good Hay day hack tool? I need to get
a lot of diamonds and coins. Please don't post links here if the tool
require Jailbreak. If you know some good site where i can get Hay day hacks
and cheats post url in your answer.

IPhone 4S charging problems?

So, I'm having problems with charging my iPhone. I bought a charger off of Amazon, and my phone charged well with it for about a week. Then, I started using my Apple one that broke this morning, but before it broke, it charged fine. It charges fine in the iHome I have, too. So I bought a charger from a discount store, and it connects, disconnects, connects, and disconnects, and it just doesn't charge. Should I just go and buy an Apple charger, or do you think it could be that the jack where I plug it in, needs to be cleaned out?

IPhone 4 won't restore on iTunes?

I have a iPhone 4 and I tried to restore it and an error 3194. I found out that i did something when i jailbroke it. I took the jailbreak off and it has something to do with tiny umbrella and unchecking the set host to cydia button but i can't uncheck it its faded so i can't click on it. Can some one please tell me what to do so i can restore my phone with itunes. BTW i'm on ios 6.0.1 Thanks

Iphone 4s connected to Wi-Fi but apps won't update?

It says i'm fully connected but the apps won't update.

i'm at a university so restarting my modem isn't an option. I already restarted my phone and turned Wi-Fi off and on again.didn't help.

any advice?

Added (1). Sorry, when i say "update," i mean refresh. The apps look like they're gonna refresh, but they take forever and then don't refresh.