Chosen Solution
video link The link shows exactly what happened to my device. I’m planning to buy an iFixit kit for battery replacement. However, I’m still reluctant because what if the black screen is another issue altogether? My first inference is that since the battery is bloated, it may have disconnected some modules inside, like the one for the display. I just wanna be sure before buying. I hope someone can help me in this. I’ve searched sites discussing about bloated batteries but I haven’t found any case like mine. Thank you!
You might want to order a new screen as well. You should open up the phone since the battery is bloated; Unplug battery, reseat screen ribbon cables then plug battery back in and see if the screen still looks like that. If it does it needs a new screen. Here is a guide and link to screen if needed from iFixit: iPhone 5 Screen Replacement iPhone 5 Screen
