My tablet (Lenovo Tab 10.1) started playing up charging, i had to put the charging cable at a angle for it to charge, or put something under the cable to slant it a bit for it to charge. It got worse as weeks went on and wouldn’t charge at all. I tried the stuff people said with leaving it on charge for 3 days etc, nothing. Tried 3 different cables and chargers and nothing. I got 2 of the same tablets and all the chargers worked fine with my other tablet. Then i found my Genuine Lenovo plug & charger which i used for my FireStick and thought I’d try that. And it worked!! All the years of knock off chargers must take its toll on the tablet, My phone sometimes does that, needs the Genuine cable. I hope this works for other people. Saved me money, was going to buy a new one.