Question about Sony Ericsson P990i Cellular Phone

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The new battery fails

The new battery keeps fading to zero after full charging. have you ever encountered something similar? i have tried several new batteries.

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It seems as if the firmwarei s corrupt. Your deivce is running an OS called UIQ3 which is quirky at times. All it takes is to have your phone reflashed. Go to a local service center, if they cant help you, just check my profile and we will

Posted on Jan 23, 2008

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Posted on Jan 02, 2017

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My pone is charging but wont turn on i have taken the battery out several times and it is full charged but still wont turn on what should i do


replace the battery with a new one. Many battery types create a 'memory' when used repeatedly without a full charge. stopping the charging process prior to full charge lowers the level the battery 'expects' a full charge to be. Do this often enough and you will create a battery that expects full charge to occur at zero charge.

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Battery will not charge


li-Ion batteries have a bad habit: whenever fully depleted, they lose a few cells, to the extent that they might not be able to hold a full charge if enough cells are damaged. In other words, repeatedly using a laptop (or any other Li-Ion powered device) to battery depletion can shorten the battery's life significantly. You might want to keep the batteries fully charged whenever possible and avoid fully depleting them too often.
There is also the habit of "re-setting" the batteries by using the "fully deplete-fully charge" procedure. It only applies to niMH or NiCD batteries ( and is used to erase the "memory effect" ) but is damaging to Li-Ion batteries for the reason mentioned above.
so if your battery can not full charge,this mean you need change a new battery for your laptop
http://www.aulaptopbattery.com.au

Oct 05, 2012 | Computers & Internet

2 Answers

My mix max doesnt turn on. it was working and all of a sudden it said "connect to usb". i did then it turned off and it doesnt turn on anymore i tried to charge it but it still doesnt work. HELP!!! please.


If this doesn't help, the MixMax must be opened up. By CAREFULLY prying the corners loose, you can remove the back. You will break several of the smaller retainer clips during this, but it's OK. The main retainers will hold the unit together just fine once completed. Once opened, unplug the battery. NOTE THE ORIENTATION of the red and black wires. Use any 5V 500ma or less power supply and connect to the battery. Charge it for at least 30 seconds. return the battery to the unit, and reassemble. DO NOT TURN IT ON. Plug the USB cord in and let it charge completely.
The MixMax will disable the power if there is an unexpected power interruption, then the battery will run completely dead. Once dead, it cannot detect the USB when connected.

Jul 30, 2010 | Disney Mix Max Digital Media Player

2 Answers

Battery fully charged but still shutting down when disconnected from mains


Find another battery it says like the one you have is faulty. If you try another known good battery and that fails just like yours then try a know good ac adaptor. If that fails, then its a problem with the motherboard not charging batteries properly but it really does sound like a faulty battery from my experience.


May 08, 2009 | Acer Aspire One PC Notebook

3 Answers

Battery charging


Does the machine boot and work just on AC?

If it does then you may have a bad battery - Does the old battery charge?

If it does not work on AC then try another AC adapter - even the generic universal kits should be enough to test it.

hopefully that's all thats wrong. let us know.

Dec 27, 2007 | HP Pavilion dv4000 Notebook

2 Answers

Charging flash


Mine does the same thing...Charging Flash!  I called HP's Customer service, and after 20 minutes of a woman, who could barely speak English, asking me for all my personal information, she told me there would be a charge of $34.99 just to get over the phone tech support!
I am told that we need New cameras, and trust me I will never by anything HP again! 

Sep 04, 2007 | HP Photosmart 733 Digital Camera

1 Answer

Long Delay between pressing shutter and picture being taken


If the camera has been on standby- then older models can take a time to 'wake-up' this is a battery saving device. Check you manual - it may be a variable function. Failing that, simply tap the shutter release from time to time with the camera on this keeps it 'live' but will ofcourse 'down' the batteries sooner.

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2 Answers

Screen keeps fading to white


try doing full factory reset.go to settings,than full factory reset and the code for that is 8 numbers of zeros.

Sep 25, 2006 | Samsung ZX10, E315, E317, P735, E630, D500...

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