Question about Samsung BlackJack Smartphone

3 Answers

There is no display. Phone works, but can not see who is calling, can't view contacts, or any other views.

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  • flhoss2000 Jul 21, 2009

    No display at all on Samsung BlackJack. Still can call out and receive calls, but can not view anything on display. I have removed the battery several times, left it out over nite and nothing changed.

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3 Answers

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  • Master
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HI, this is a possible severed LCD screen ribbon connector. the soldered contacts inside the mini connector tip may be defective. this will cause the screen to go blank. This can also be caused by a corrupted program in the main board core script as well.

Here's is a fail safe procedure that will expose the actual issue you are having.

Step one.
Carefully power off the unit and remove the battery and Sim card. Once you have removed these two devices, let the phone sit for approximately 3 minutes without the sim card and battery. this will drain all power and, reset the core program, allowing it to re-initialize itself.

Step Two.
After the 3 minutes are up, re-install the Sim and battery carefully back into the unit and power up the phone. It should take a few secs to initialize the core program and, start up.

Step Three.
Once the phone is powered up again, monitor the progress. pay close attention to how long the load time is for the screen to show graphics. there should be normal latency in this case.

Ok, if the unit shows the blank screen once more after the core reset and, it is not operational, this will confirm a serious issue that concern the main core script or, program that is installed at the factory on the main board. in this case, this unit will need ot be serviced at your local Samsung cell provider service station or, you can send it in to Samsung for the reprogramming of the main board.

NOw, if the phone is operational and able to make calls after the resets and, the only abnormality is that the screen is blank, this will confirm a LCD contact ribbon failure. you will need to replace the LCD screen in this cass.

Contact you local provider or, Samsung for these repairs.

Posted on Jul 21, 2009

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Unfortunately it is most likely the display needs to be replaced.

If you take the phone and look at the display from the side you may see a slight ghost image of what should be there. That will mean the back light has gone out. If you do not see anything then the problem is either the display or the hardware to generate the images.

If the phone is new perhaps you can get warranty. If not you can try and find replacement parts and try to fix it. Phones are not fun to fix mainly as they are such a pain to get apart in a nice way. I've not fixed this model for this problem before but the symptoms are typical of display failure of some sort. Wish I had a better quick fix for you.

Posted on Jul 21, 2009

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  • Master
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Absolutely no display on the phone whatsoever? The first thing to try would be to take out the battery from the phone completely, leave it out for a good two minutes and put it back in. If this does not reset the display then it has failed. You will need to contact the service provider (probably AT&T?) and have them replace the phone. It's probably still under warranty so this will be free for you to do.

Thanks

Tim

Posted on Jul 21, 2009

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