Tip & How-To about Samsung MM-A920 Cellular Phone

Resetting a "white-out screen" on your MM-A920.

We've had these phones for about 3 years and last week my wife's unit LCD screens(both the main screen and the smaller display on the front of the phone) stopped working completely. All you could see was a white screen on both sides of the phone when the unit was in use. We attempted all kinds of ways to reset the phone - in vain - and were getting resigned to buying a new unit.
As a last resort, I attempted to open up the unit to check for false contacts or other low hanging fruit. As you may know, the screws are covered by small black rubber caps in these phones - those caps make the screws "invisible".
Well... I took out the battery, and noticed a relatively large rubber cap. I used a needle to take it out, expecting to find a screw underneath - and... what I found was some sort of totally undocumented "reset switch". I just put the needle through the switch - which has a hole in the middle, as some old laptop "hard reboot" switches used to have - and the phone came back to full life after re-inserting the battery!

Hope this helps....!

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I've had my compaq presario cq61 for about 2-3 years. A while back it would occasionally have a kind of shaky/blinky screen but just in the past week it's like the screen has stopped working.


The problem may be due the graphics card or data cable or backlighting.

The data cable can be severed over time though opening and closing the display. This can be replaced.
The backlighting/inverter dies, some-times the windows desktop screen can be seen if one looks carefully. This can also be replaced.

Try connect your notebook to another computer's monitor via VGA or HDMI out.

If this works then the problem lies with your LCD screen.

Take care!
damnor01

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If this 2 parts didn't make it, check the board display terminal if its clean and corrosion free. resoldering each terminal may be helpful enough.

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You can find blackberry flip 8230 and 8230 LCD screen replacements on ebay. Took a while but they are available now.

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