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On the top of the e-reader, to the left of the on/off slider (looking at the screen) there is a push button on/off switch for the light. Once the light is turned on (and there is a 'star' symbol on the screen, the brightness can be adjusted by touching the 'star' and using your finger to slide the brightness control).
If your Q1 won't turn on and the charging light just flickers, most likely
you have inadvertently shifted the Hold slider button and your Q1 is on Hold.
The Hold function prevents most functions on the Q1 from operating.
To get your Q1 to turn on, shift the Hold slider button so that Hold is
Might be an LCD problem.
Notice if the LCD monitor turns black when you turn it on, turns gray if you turn it off. That means the problem is the LCD, back light/inverter is not functioning anymore.
Tell if that happens.
Right click on the computer's destop and view the display properties. Under the tab where you can alter resolution you can manage multiple monitors, It sounds like your laptop is setup to display through it's external VGA by default. Click on the two squares it shows and try to set your main screen as default.
To confirm that indeed you laptop CPU is working normally, you can try plugging an external monitor. This will also verify that your onboard video or memory is not the issue.
Assuming you have tried the above, as to the screen flashing, it can probably be the LCD panel display. It can either be the video converter or your backlight inverter (or CCF fluorescent tube). Any of the two would require opening the display panel and component level repair. Should you not be comfortable cracking the display open and circuit analysis/diagnosis, you may need the services of a qualified professional.
Hope this give you an idea and work out for you. Good luck and post again how things turn up or if you need further information. Kind regards.