Hi @mosedc ,
If the charging port (micro USB) was the problem, as it is mounted on the systemboard, you would have to remove the systemboard from the tablet to gain access to the connector so that it either can be ''replaced'' if it is faulty (have you visually inspected it with a strong light and magnifying glass to ensure that all the pins (5) are there and that they are all straight and parallel with each other?) or ''repaired'' if it is loose from the board for example.
If it is either faulty or loose then you will need SMD (surface mounted device) soldering skills and tools to effect the repair.
Here is a link to the [http://h10032.www1.hp.com/ctg/Manual/c04495010|service manual] for the tablet. Scroll towards the bottom of p.22 to view the necessary pre-requisite steps and then the procedure to remove the systemboard.