Nokia company relasing 3210 model doesn't suspect that this phone will be so popular. This cellphone have many users not only becouse it's small and don't weight too much but also becouse you may add many features like logo, netmonitor and many others. On the begining was vibramotor, games activate and now it's time to change LED lighting in your phone (light emiting diode). You may use any color like white, green, blurish green, orange or blue. We think that the last is the best so we will try to help you in case if you want to change it by yourself.

Needed equipment:

Torx T6 screwdriver - you may buy full pack in our Store


Tweezer


Soldering-iron - recommended with very small tip (11W type). On the photo you see hot air soldering becouse we use it every day.


Solder



Pointer - you may use a small pin too. Full pack ot TORX an pointer may be available in our Store


Multimeter

Desolder the phoen first - just click here to get infromation hot to desolder 5110. If you want to desolder 3210 then information about how to make thi you will fidn in our 'How to ?' section.


You will now have the PCB (Printed Circuit Board) separate and you can see the 6 LED's which illuminate the keypad and 6 LED's which illuminate display. (as on pictures shown below)

  
To be able to see the display LED's, you have to remove the display first. The display is hold onto the PCB by 4 'clips'. Bend the 'clips' a little bit, first on one side and then you can easily remove the display.

Here is the PCB layout of the 6150 and 3210. Please notice that the LED's of the 3210 are placed a little bit 'randomly':

Nokia 6150

Nokia 3210

INFORMATION:
Every LED has got polarization it's means that if you try to rotate it and solder it will not work. Polarization is like on picture below:

Now that you have all the info, you can remove the green LED's. You can choose to do the display first, and when it all works, do the keypad or vice versa. But you must change 6 LED's altogether! Don't try to change just 1 LED, this will NOT work.

Desoldering info with soldering-iron 11W:

	I heat one side of the LED with my solder and then I apply a little bit of pressure with the pin under the LED.
	When everything went ok, one side of the LED will be freed from the PCB
	Now you can take the pair of tweezers, hold the LED and heat the other side until the entire LED is freed

 

Desoldering info with hot air soldering:

	Change power of air to small one
	Turn hot air from solderign to place where LED mounted but be sure that you hold air soldering directyl upon LED (if you try to change angle you may ost the LED due air pressure)
	In few seconds you may take twezers and take up LED

 

Now you can solder the blue LED onto the PCB, but watch the polarity! I measure after each new LED I have soldered if there is no short-circuit between the cathode and the anode and if all the cathode's and anode's of all the 6 LED's make contact with each other. Well, that's all there is to it! After changing 6 LED's, put your Nokia back together and if everything went okay you will have blue lights in your Nokia.