How to sync my iPhone to my new laptop?

So my iPhone is originally synced to (I say sync, but I never actually sync it with iTunes because there's too much music etc in my library, so it's backed up to.) my old laptop which is now a dinosaur and does not work.
On the new laptop, I keep having to create playlists and autofill music to go onto my iPhone as that's the only way (seemingly) to do it, but it doesn't solve problems as I can't delete anything on my phone or change anything AND all the playcount stays the same so clearly nothing gets changed.
My question is, can I change the "back up" to the new laptop without having to sync it and lose all the stuff already on my phone such as music, playcounts etc? And if so, how do I go about it? I don't want to risk losing everything as it hasn't been backed up for a lifetime.
Thanks for any assistance you may be able to give.

I have caused water damage to my IPhone 4s. Can I get my pictures back?

What happened: …
I dropped my phone in water and when I took it out it was still working. I put it in rice, about 8 hours later I tried charging it because it wouldn't turn on. All saw was the apple logo that kept rebooting about every 30 seconds. My pictures and videos aren't backed up on photo stream. 2 hours later I put it back in rice. It is still currently in the rice. Its been 33 hours since I dropped my phone in water now.

Answer 'm looking for:…
My phone's power button is jammed so I can't turn it completely and I tried charging it, so the damage is probably already done. I'm not asking if my phone can be fixed. I just want to know if I can get back my pictures, videos, and contacts.

8Ball Pool Iphone Cheats ways for Free Coins or Credits?

I've been hooked on this app 8 ball pool for my iphone and since i downloaded it i've been trying to find a 8ball pool cheats for anything. I hear that there are lots of auto aimers out there and i have def played a few of them. I would love to have some boosts the next time i run across one but i don't have enough gold coins or credits and don't want to spend real cash. Anyone got a link for a 8ball pool iphone cheats for anything? Any way to hack coins or credits without having to jailbreak? Please ne one that can point me in the right direction or give me any hints i would appreciate it, thanks.

Does my iphone need a battery replacement?

My iphone shutoff unexpectly at 2%( which is still able to charge it before it reaches 1%) then it turned back on because it was 1%battery then turned on then turned off because it was 1% and this kept going on all night. Now when i plugged the charger its stuck on the black screen with the big battery in the middle. It won't charge, does that mean i need to replace the battery. I had the iphone 4 for 2 years. If i do need to replace how much will it cost and how long will it take

How to unlock Iphone 5S? URGENTLY?

5 Stars

I've just bought an Iphone 5S in United States and I want to unlock it to used it in another country.

Need really urgently your help, Thanks

Snap on cases for iPhone 4s. Do they work?

Obviously I won't be getting Otterbox protection, but I have to know if they do anything to protect the phone? I saw the Ultra Thin drop test for the Incipio case and liked what I saw, but will a generic snap on come anywhere close?

Also looking at this case from Etsy. https://www.etsy.com/listing/184181387/iphone-4s-case-wood-iphone-4-case-iphone

Better or worse than a generic plastic snap case?

I'll also be using a screen protector. I just want to avoid the cracks as much as possible for casual use. I'm not going to be extreme and I'm not a total wreck that drops my phone all the time. But sometimes it happens and I know that iPhones are notorious for glass breakage.