My scoot is a 2016 F3 Ltd. I installed a backrest when I first got it, that's the only possible hiccup going on that may contribute to my problem. I've had to pound my fist hard on the rear seat in order to get it to unlatch before, but now nothing works. I've read and re-read all the posts about this common problem, only so far, I'm still stuck. I'm wondering if someone would be willing to please take a picture of the underneath of the rear seat so I could see exactly where the latch is located? I'm in the process of getting it ready to sell (and I absolutely hate doing this, I've ridden thousands of miles through 29 States) due to my physical problems. Sure would appreciate any help !!!