Give me the difference between cell and battery

Gel Cell is always better

Try a different wall charger, as well as (independently) a different cable.

The CMOS/BIOS Settings backup cell is like the yellow button cell in the 1st pic. It plugs into a tiny white connector shown at position G7 in the 2nd pic. The cell MAY be blue. Usually has one red & one black wire. These are series 600 mobos but may be different from yours. However, my experience with Thinkpads generally gives the
location of the little white plug near the battery connector as in pic 2.
If the mobo is in situ, generally cell is accessible from battery compartment with battery out.Good Luck.

Try to use a different battery. If the problem still persists then there must be a problem in ur nokia 3120. You have to give it to a nokia service center.

You can find these at different websites. Ebay is a smart and pretty cheap choice, here is a link to silver battery cover for you phone http://cgi.ebay.com/NEW-GENUINE-LG-OPTIMUS-GT540-GREY-BATTERY-BACK-COVER-/260752706058?pt=UK_MobilePhones_MobilePhoneAccessories_MobilePhoneFascias_JN&hash=item3cb6128a0a
Good luck, and please if you do find this comment useful give it thumbs up :)

Hi,replace the charger,problem will be solved.

Take care.

you need to call the service provider of the phone. ex att and give them your imei, which you can get underneath the battery and theyll give you the code and how to enter it.

Sound like your phone is done for.
But try this first.
Remove the battery, remove the simm card. Wait 10 minutes.
I can assume the battery is good (as that's the #1 reasons for phone problems) Unless you can test the battery with a meter or use the battery in an identical phone don't assume its good.
Then replace the simm, put tha battery back in and give it a try.
Doesn't power up.?? Head on over to the phone store of your choice. Good luck.

Most lithium ion battery packs I have come across, that typically have three terminals, have a terminal to allow the charger to do one of two things. This terminal will give the charger circuit a temperature reading, or, it will give it a reference to allow for both cells to have a balanced charge. On the battery I used for one of my projects there was a board that measured the voltage across 3 different cells to prevent over charging, over current, and undervoltage conditions. Without