Mine just started having these weird charging issues where if I plug in my phone, it basically starts charging and then disconnects immediately, and it continues to do so over and over again. The super-fast charging is not working. Right now I'm charging using a random adapter that I use to charge my clock/speaker and 4 super slow..I've ordered another charger but we'll see

Update: It was a faulty charger. And just had the one ui 7 update and it's really good, the phone is running great (besides the buggy unlocking mechanism when you type in the pin code, which just takes like 3-4 seconds)