Chosen Solution

Hello everyone, thank you for taking the time to look into this issue im having. I had my iphone 6s battery replaced through the istore, and it was working well, but after a few days i plugged in headphones (undamaged original apple headphones) and the screen just turned off, and it wont charge or anything. Im sure they must have done something wrong in the store/repair center and it created a short, im just wondering if its the logic board or if its something i can fix.

PS, i used the same headphones in another 6s, no issue. Thank you everyone i appreciate your time :)

The first thing I would suspect is simply a bad replacement battery. Go back to the store and show them the device and let them try a replacement battery. They normally should warranty their work. While they have it opened up, they will also get a chance to do a visual inspection and if they did make a mistake, they should make it right by you.