Discovery X5 Electric Bike
The handlebar comes turned for better transportation, but this can cause the cables to be too tight and not allow the handlebar to raise. To fix this, open and loosen the clamp that connects the handlebar to the handlebar stem, then try to raise the handlebar again. If it's still too tight, completely open the clamp that holds the handlebar and detach the handlebar. Then straighten the handlebar stem, and reattach the handlebar.
If your handlebar stem feel loose or wobbly there is an easy adjustment you can do. Locate the Bolt under the Handlebar Latch and turn it to the left. This should tighten the stem and make it feel more secure. Be careful not to overtighten or the latch will not close.