Question about Sony CDX-MP40 CD Player

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Mp4 not charging

There's no light on my mp4 when it take charging, & the battery is not full it always empty...it means its not charging even my battery is in good conditioned.

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  • Anonymous Feb 27, 2008

    how can i open my mp4 because its olready white int the screen?

  • Anonymous May 15, 2008

    i also have same problam with mp4 player

    plz any body help us

  • Anonymous Jan 04, 2009

    ME TOOO

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Sometime the microprosser locks up and sometimes by hitting the reset switch you can free it up- typically the reset is on the rear of the mp4 in a tiny hole-try using a small paperclip to press the switch inside the little hole

Posted on Apr 04, 2008

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Posted on Jan 02, 2017

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1 Answer

After one hour the battery was empty even the battery full charge it.


You phone needs a new battery. They last 2.5 to 3 years in normal service. If your phone is newer than that, you may be able to get a warranty repair. My iPhone 7 will play music non-stop for about 3 days on a charge.

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Greetings Gurus. I have Makita charger model DC18RC, battery model is 18v BL1815...manual is of limited help. I'm trying to understand what the indicator lights mean, what the time is for charging,


I agree that the pictographs are not very helpful. You probably have one of the new chargers. I have an old one, which is a little easier to figure out.

From top to bottom

1. The flashing green light with the electric plug indicates that the unit is plugged in and ready to go.
2. The flashing red little fan means that the battery is too warm so it is just cooling it and not charging it at that moment.
3. The solid red empty battery outline means that it is charging but hasn't got very far, less than 80% full.
4. The mostly full battery outline with both solid red and green lights at the same time means it is 80% full or more
5. The full battery outline and solid green with the musical notes means it is full up.
6. The broken battery outline with flashing red and green means you've got a broken battery.
7. The yellow light with the wrench means the charger is "conditioning" the battery, whatever that means.
8. The yellow light with the fan means "cooling abnormality."

Hope this helps

Nov 01, 2014 | Drills

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My nokia 2330c-2 is always low on battery even after I have charged it and it most at times hangs and goes off automatically


nokia 2330c calling time battery empty & when restart phone battery full plz provide me this problem's solution ....

Apr 20, 2011 | Nokia Classic 2330 Cell Phone

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I have battery charger model no.BC-CS2A during charging after 7 hours indicator light is off that what is this indication.and after indicator light off charging process do continue or...


When the light is off, its mean your batteries already full so charging process stopped automatically.
After usage and the battery empty again, you can recharge them and you'll get the light is ON again.

If this helpful, RATE please !

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Battery goes empty after full charge


Hi,when a battery goes empty after fully charged, means the cell of the battery is weak and can power on the phone for too long.
All you need to do is to replace the battery with another one,charge for about 6 hours before use and every thing will work fine.

Oct 05, 2010 | HTC BH M300 Bluetooth Mono Headset (UK...

1 Answer

Power problem


Seeing as you notice that your battery life is half, this most likely means your battery is no longer able to hold a charge, or a full charge. It could also mean the battery is defective.
If your laptop is still under warranty, the manufacturer may replace it. If not, you'll have to buy a new battery, unless you always keep it plugged in anyways.

Mar 23, 2009 | Dell Inspiron 600M Notebook

1 Answer

Power failure


Probably just means the battery is too old and you need to get a new one, cause that happened to an old phone of mine but i'm not sure, could be something else.

Feb 27, 2009 | Nokia 5300 Grey Cellular Phone

1 Answer

Batery lamp always on


No sir, u can't set anything manual in that. Its a hard wired program and can't be re-programmed electronically.

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4 Answers

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check if our battery is inflated, if so, your phone is shorted... is your phone dropped? soaked? there are lot of reasons why the phone became shorted...

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