How to flash my sprint iPhone 4s to cricket or boost or whatever non contract company?

How can I flash my sprint iPhone 4s to cricket or boost or whatever non contract company?

Do factory unlocked iphone need jailbreak after the update?

I have factory unlocked iphone 4s and i'm thinking about to update it to the latest ios 8 version so do i need to jailbreak it after the update or not its not required? Beacuse in previous updates it didn't required a jailbreak.

I brought an iPhone online it says sim not valid what to do?

I put in the new sim card from t-moblie but the carrier was Verizon, the seller said it was unlocked but when i put it in it says sims not valid. What should i do?

What is the best speakers for a party?

I'm talking about high school parties i want something really load and the bass to make the house shake, i want to be able to control the bass, and to put cds and the radio and plug my iPhone in and i would like it to be 500-700$ or less

Added (1). Thanks for any help

Is there an iphone app that recovers deleted pictures?

Like aren't the deleted pictures from a phone saved in the "cloud" microchip on the phone's circuit board making it possible to recover them?

My iPhone 4 won't charge at all. It's completely dead and rebooting it doesn't seem to fix anything?

My iPhone 4 won't charge at all. It's completely dead and rebooting it doesn't seem to fix anything?

I used wd40 to clean my iphone logic board is this ok?

I used wd40 and a tooth brush to clean the iphone 4s logic board. I wiped down the whole logic and cleaned it and let it dry on a fan. I used a anti static towl and pressed against the components to get the remaining wd40 off the board. However everything is working perfectly now… BUT i'm now reading it will kill my iphone eventually? Any feed back thanks.

Why is there a $175 deductible to replace my iPhone 5s on T-Mobile?

I have the JUMP! Program for insurance. In this program, T-Mobile's website states that you can replace your device for free, so long as you file a damage report.
Accidental damage is included.

If it's "free," why the $175 deductible?! That's pricy for a deductible…

Why doesn't apple create an app to let you delete your marriage from your iphone?

Think of all the money you could save on sleazy divorce lawyers.

I can't watch videos properly on my iPhone 4s?

Basically when I click on a video on Facebook Or whatever, it keeps freezing at a point for a few seconds and then goes to a different image and freezes agajn whilst the audio is still going on? How can I fix this?