Hi, i recently purchased a Tecno Camon c9 as a temporary phone while waiting to buy another smartphone, however had a lot of doubts at first. After purchasing the phone i was surprised at how good it was for such a price (1 350 000 gnf), yet the Tecno store i bought it from told me i should wait for it to reach 15% before charging it and i was okay with it and followed the instructions. However at 22% it did an auto restart and out of a sudden the phone went from 22% to 17%. I am kind of worried and have now left the phone charging and intend to install the system update. I leave the country in two days and there won't be any Tecno support centers where i am going, should i take it to the store to get it checked before i leave or is this an ordinary issue?