There are several possible reasons why the M7 wireless keyboard and mouse cannot be charged:
1. Charging cable or charger failure: Make sure that the charging cable and charger used are working properly, you can try to use another charging cable and charger for charging.
2. Battery failure: If the keyboard and mouse use replaceable batteries, check whether the batteries need to be replaced. If the battery has been used for a while, it may need to be replaced with a new battery.
3. Poor charging contact: Check the charging port and charging base to ensure that the charging contact is good and there is no impurity or dust blocking. 4. Internal fault of the key and mouse: If the above methods do not solve the problem, there may be a fault inside the key and mouse, it is recommended to contact the manufacturer's after-sales service or professional technical personnel for repair or replacement.
Wireless keyboard and mouse can not be charged, it is because your device battery has a failure, resulting in unable to save the power, so it can not be charged