Hello there,
Follow this simple steps to get over TRADE VIEW app unable to display CHART on mobile and TABLET.
REGISTER with Gmail account , when successfully registered simply click on the eyes icon you see at the top left side of the app if you're on both portrait and landscape mode , if the eye icon is covered with a Slash ---- it means it won't display the chart Icon, click on the eyes again to view your chart.
Hope this help. !