My lenovo tablet is not charging it appears as if the charger port may be loose??

Does it have a micro USB charger/charging port? This was the universal charging adapter most manufacturers other than Apple moved to around 5 years ago. In my experience, the charging port to charger connection can become loose and prevent charging....especially if you use the tablet or phone during charging. The best method I have found to troubleshoot the issue is to try a charger that successfully charges another device and plug it into the tablet or phone. If your device still does not charge, and especially if the connection is loose, it is most likely that your charging port is damaged. Another possible issue would be the battery itself but the charger or charging port is the most likely culprit for your issue.

Your tablet's port is broken or malfunctioning. It probably needs to be replaced.

The power port is damaged - most likely the solder joints are loose or broken. You need to find a store where someone can open the case, order the new part for the tablet and then solder the new power port to the board.

Then it will be as good as new.

I have replaced power ports on laptops, phones and tablets.

It sounds like it may not be fully charging.

If the port on the tablet is loose/damaged or the cable/charger is failing, then the tablet may not be charging even though its plugged in.

If you can, try a different cable.

Make sure the charger is the correct one for the tablet! Some tablets require more electrical current then a computer's USB port provides. Same thing applies if you are using a 'phone' charger with the tablet, might not be enough current.

Most USB ports/chargers output about 5 volts DC (direct current), but they can vary in the amount of Amps (A) or mili-Amps (mA) they produce.

FYI - the symbol used to represent Direct Current is straight horizontal line with a dashed horizontal line directly under it.

Most computer USB ports only produce 500mA.

Most phone chargers only produce 1A.

Many tablets require 2.1A or 2.4A to properly charge.

Check with your tablet manufacturer to find out what your specific make/model requires and the look closely at the charger you are using to see what the OUTPUT is ... e.g. 5.2V 2.4A

It sounds like there's a problem with the charger. The wire on the charger is rather delicate. So is the port on your tablet where the wire plugs in. There may be a break inside the wire. If you dropped your tablet while the wire was plugged in and it hit the floor on the charger plug, the charger plug could have damaged the charging port in the tablet or the wire itself could be damaged.
Find someone else who has the same tablet and ask to switch chargers to see if either of them still work on the other tablet. If your friend's charger starts charging your tablet without a problem, then the problem is a a broken wire in your charger. If neither charger will charge your tablet but both chargers charge your friends tablet without a problem, then the problem is with the charging port on your tablet.

just google it many wideos on it.

If you feel comfortable you could take it apart and re-solder the charge port. Most tablets are not that hard to take apart. You really just need some plastic pry bars and small screw drivers

Is it loose connection. or any problem with charger or tablet. give it to any service centres