How to fix the charging system

@mainalyton you are not telling us what the issues are (I assume it is not charging) nor are you telling us what you have already checked and tried. Of course, you always check your charger and your charging cord. Make sure you have the proper voltage and that your cable is in good working order.

Next, you want to check your charging port. Make sure that it is clean and does not have bent pins. Use a few puffs of canned air to clean out any pocket lint etc. If all of that is okay, then a charging issue can be caused by a bad charging board, a bad battery or a bad cable from the charging board to the mainboard. I would start by replacing the battery and the charging board at the same time. That way you only have to open your phone one time.

Since iFixit does not yet have a guide for that use a combination of this video for the charging board, as well as this video for the battery.

While you work on your phone, take lots of pictures. Once you are done with it, take those pictures and create a guide for iFixit. That will help the next person that has the same issues with their device. It's easy and fun to create these guides. https://ifixit.com/Guide/new The iFixit community will appreciate this.

Repair is War on Entropy!