It’s covered in the manual.
. Press and hold the button until the Switching on from Sleep mode (waking up)
If the bicycle has not been used for more than 2 hours, press the button on the top tube for three seconds. Wake-up is indicated by the brief flashing of the button before System start-up...
Could be anything, I’d take the fork off and clean and grease the headset bearings. Ensure everything is set at the correct torque.
When was the last time you performed a lower oil service?
No issues with my frame , well designed, well painted good welding.
Nice compact suspension design, charging point up out of harms way and plenty of room for a water bottle.
The Jam2 is an overall nice trail bike within a good price range.
Guess he's trying to push something he wants to get...
I loved my whyte 130S, but the more I look at the ebike the more I think at coming upto 60 the Focus is the better general trail bike and you don’t have to squeeze a water bottle in, I’ll go and have a look but it may be a bit to aggressive for what in need.
Must admit mine are regularly removed bit of grease, torqued back up.
Mine own view it’s a moving suspension system requiring regular maintenance and lubrication.
Not had one come loose and wheels have the same checks.