Question about Samsung D840 Cellular Phone

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Samsung D840 is not charging.

When I connect the charger to the Samsung D840 and turn on the power, nothing happens. Originally I thought this was a battery problem but after finding a new battery I stilll have the same problem.

Any help would be greatly appreciated.

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  • nematics
    nematics May 11, 2010

    problem with main board

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Try this code *2767*3855# or *2767*2878#(custom reset),this will reset your mobile,all data of your mobile will be deleted,then try charging,if not working then you have to change new charger.

Posted on Feb 15, 2009

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To reset the phone, it should be without power at all. So removing the battery, when the charger is connected, will not reset the phone. Then when the battery is dead, it could show up as if it is charged, because the voltage on the voltage sensor can become high enough, to indicate the battery is charged.
First, disconnect the charger, and remove the battery. Wait a few seconds and reinsert the battery. Try switching the phone on. If nothing happens, the most likely thing is you have a bad battery.
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If the phone was totally dead before it refused to charge initially, then the refusal to charge is due to the fact that there was no residual charge left to bring it to a charge, because the battery completely died.
To fix it, kick start the charging process.
Remove the battery, and using a universal charger (desktop charger) charge the battery for say 10 minutes, before re- inserting the battery to the phone and continuing with the normal charging process.
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Then its the motherboard inside the phone where the charging port connects. It costs about 150-200 to fix unless you have sprint insurance. This happens if the phone is accidentally dropped JUST wrong still plugged into the charger, or if the charger is taken out JUST wrong and sideways or crooked. On a plus side, it is a common thing for a lot of phones and it is fixable by a technician.

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I had your problem. I thought my phone was defective, it turned out all i needed was a new charger. Try that.

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jd014e9445 - the power button needs to be resolder back on or replace....so take it to a mobile service center to have it rectify.


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good day. did you install samsung pc suit? if not please install it and check your usb cable for defects. tnx

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The only thing i can think is that somehow in your connection settings it got switched to the incorrect bands

if your in europe change to 900/1800
if north america change it to 850/1900

otherwise you will need to seek a professional to flash your phone for you

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if you plug the charger in and you can see the battery bars going up and down then it is phone problem if the scrren is blank then it is either the charger but if you have a car charger aswell and both chargers worked before then it is probably the phone that has a problem check where the charger plugs in that their is nothing blocking the terminals like fluff or bit of paper check that none of the terminals are bent or coroded if you have used phone in rain they might have got coroded this can be solved by cleaning the terminals on the charging part of the phone but be carefull when you do this not to wreck any thing check the charger make sure nothing bent or blocking the charge the problem with these phone is the pins on the bottom where the charger plugs in these get damaged really easily and they can be replaced but will have to take to phone shop and get repaired hope this is some help to you....................................

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