First of all, there may be a fault in the charger or charging cable, causing the power to not be properly transmitted to the headset. In this case, you can try to replace the charger or charging cable to see if it can solve the problem.
In addition, it is also possible that there is a problem with the charging interface of the headset, resulting in poor contact or damage, and thus unable to charge normally. If you think the headphone jack is a problem, you can clean it and make sure that the plug can be firmly connected to the charging port, or try to use another charging cable for charging.
In addition, if you feel hot when you have been using the headset, it may be the heat generated when the headset is working normally. Bluetooth headphones will also have a certain amount of heat when charging, which is normal. However, if you feel that the heat is too serious or abnormal, it may mean that there is a problem inside the headset, you can contact after-sales service or replace the headset.
All in all, to solve the problem of charging hot and not charging into the Bluetooth headset, you need to check whether there is a problem with the charger, charging cable and headphone interface, you can troubleshoot one by one, and try to replace some components to solve the problem. If the above methods do not work, it is recommended to consult a professional or contact the after-sales service of the headset manufacturer.