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Ok, long story short, I have 2 iPhone 5cs. One is mine, the battery is shot, wont hold a charge for more than 1 hour at idle. The other has had its screen smashed so bad it wont turn on. Smashed screen phone is 8gb with a good battery, dead battery phone has a screen with a tiny chip, bu 16gb of storage. I want the best of both worlds, but getting the battery out im starting to think is impossible, does anyone want to talk me through swapping the hdd or whatever the iphone uses for storage?

How about following the IFIXIT guide here: iPhone 5c Battery Replacement and all you’ll need is the new set of adhesive strips: iPhone 5s/5c/SE Battery Adhesive Strips. Swapping out the battery is a lot easier than trying to swap out the logic board! All you need to do is find the pulls and the battery just falls out! Here’s a vid that shows how you release the strips: How to use Command™ Picture Hanging Strips jump to time-point 1:00 where the wall part is removed. It’s the same here.

iPhones and other smartphones do not use removable storage like PCs do. They use chips that are soldered to the logic board and are unable to be replaced. You could try swapping the logic boards but that almost certainly wouldn’t work. Good luck!

iPhones are lego projects. There is no reason why you can’t simply follow the iFixit guides already here to tear down both phones and build one good one. Yes a 5c will work with board A, battery B, screen A, housing B, etc. all are just legos. Re: getting a battery out, use a plastic tool and pry a bit from the edge of the housing not the logic board until you can get some tweezers under there and grab the white battery strip and pull it again. Be careful of metal tools puncturing the battery, although it is fun to watch the explosion. Ah–just noticed this is a 5c not a 5s. While the 5c may have a bad battery, it is more likely that the 5c also has a bad tristar chip on the logic board. 5c owners tend to use cheap gas station charging cables which do not protect the phone from charger voltage surges which damages the tristar chip on the logic board. Repairable, but you’ll either need to take up microsoldering or send it to someone who has the equipment to do board repair on iPhone boards.