Nokia 1100 not charging

Nokia 1100 not charging
, there are two kind of not charging.
1. Not charging with alert ( not charging displayed with beep )
2. Not charging without alert (not respon (no indicator displayed even though charger plug in)

1.For nokia 1100 not charging with alert:
Please tune energy management first, or write PM with flash box (ufs-3, MT Box, etc), if the problem not solved, please check batteray connector or replace if needed.
If the problem still not solved, please check hardware: D100, c100 and IC charger (UEM).

2.For nokia 1100 not charging without alert:
Please check connector first, clean board and connector, if the problem not solved please check fuse, replace if needed. If the problem still not solves please trace circuit and replace UEM if needed.