Can I buy a phone while still building credit for a decent price?

I'm trying to buy a phone with sprint, because I like their prices and their coverage is good in my area, and I'd like to get the iPhone X on a monthly payment plan because there's a good deal right now, however I'm 18 and have no credit, so I can imagine the down payment will be insane, so is there any way to bypass the down payment?

IPhone 7 Plus submerged in water! What do I do?

I got my iPhone 7 Plus screen fixed less than a month ago and was told it will not be was water resistant anymore. Well, the phone fell into water, completely submerged. I panicked, took it out, and turned it on (found out later you're not supposed to). I took off the case and dried it off. The phone was working fine after I turned it on but while I was getting rice to put the phone in, it shut down by itself and now when I hold the power button it shows the apple logo and then turns into a black screen and it turns off again. I'm not sure what to do now and I have a feeling I fried my phone. I took out the SIM card and now the phone is in a bowl of uncooked rice (which has worked for me before with my 5c). What else must I do?

How to unlock an iPhone that's been reported as lost?

I found my old iPhone the other day but because I reported it as lost I can't unlock it. I called Apple to ask if they can unlock it if I provide them proof of purchase but they said there's nothing they can do. There's stuff on that phone that I need!

What iPhone should I get? - 5

I currently have an Alcatel Idol 4 with Windows 10 with 128gb total.

I'm having a hard time understanding the pros and cons to the iPhone 6's, 7's, 8's X's and am not sure what the difference between the XR's and XS's and such is.

I want something that's small, has parental controls, I only need it to run just a couple apps, WhatsApp and another video app for work, I want it to have about 128gb or better, not be out-of-date any time soon, and don't want to pay too much.

How to remove sound from Snapchat?

Ever since I got my new phone (iphone 5) the volumes work fine except for my Snapchat camera. I've done everything like turning my phone on and off, going into Snapchat settings, phone camera settings, turning off the ringer. Every time I take a picture on Snapchat the camera shutter makes a noise. Anything else I could try to silent the sound?