I installed a new battery in my Galaxy S4 and it lost all my contacts and photos.?

Go suck your fathers diick you piece of shiit 

If you're such a geek you have these funny feelings about not being able to sort out ancient technology then perhaps you shouldn't have a phone.

Also stop commenting shite on my answers, the above answer is about as helpful as your own comment on my question. 

Also the battery has nothing to do with your contacts/photos, you have the IQ of a potato. A battery is exactly that a BATTERY!

Hey there, I was trying to find genuine information considering my small children ride in my vehicle and if brakes mess up could cause them harm. How about not Calling people names when they ask real life questions, have a great Sunday asshole 

NO ONE CARES about your stupid question 

Dumb as f 😂🤣 like to troll people😂dfl 

Maybe you should've backed up your phone, or better yet, bought a new one years ago

Signing back into your Gmail account on Google should bring back your contacts that is if you were properly signed into Google. As for your pictures if you were properly signed into Google and synced up your pictures are safe on the Google cloud. But if you neglected to use the Google services that back up your contact and your pictures you're in a world of problems your stuff is gone.

Too late.

You have to export them, save them to an exterior device, prior to the battery change.

Then import them again.

The S4 should be using Google, so if you've been clever, you would have backed all your contacts up to your Google Account.

If you havent, ......oh well

well either your lying (a battery swap does not erase anything)

or

you accidentally reset the phone.

if it is the second then you are sol