In ur nokia 5200 may be problem from three places.
1- upper p.c.b.
first u have to change belt to check the belt is ok or doesn't if the prolbem till now u have to change ur up side p.c.b. if the problem still now then u have to change ur keypad i.c.
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Not a problem friend. Just be patience.
1. Just press you end button(i.e your red button)
2. to check weather key pad unlock or not for that just dial any number and press call button, if success then press red button.
3. press menu button,
and take the help of your manual book which comes with your phone.
4. see where exact the contact option is and go to that using your navigation key and press ok button (it all will be in imagination as your screen not showing any things)
5. using your navigation key come down to option copy contact, and do the same as manual book show hope it will work for you. As it a hectic job but sure it will help you out.
Most models slide to open this common problem. The main thing I suggest you change the new ribbon cable. is not about just the keypad will not work if the ribbon cable is damaged, but lcd display is not functioning properly if the ribbon cable is damaged. You are lucky to still be able to use it even can not move left or right, if not berfunggsi menu button, you can only power on mobile but can not use it.
Faded prints are possible due to following reasons.
1. Fogged red mirrors inside the Laser box 2. Alignment of the Laser Box 3. Calibration Problem 4. Cleaning Problem
I will guide you with simple steps first, if this dosen't work working with laser box is little tough & time consuming, hence will describe later.
To Calibrate the colors, Press the 'Green Button' in the front panel, use the arrow keys to navigate through menu.
Select 'System Setting' by pressing the green button again, navigate using the arrow keys and select the 'Calibrate Color', select green button to select and confirm to 'Calibrate Now'. This will take few minutes.
In addition to that, to clean the paper path, select the green button and use the arrow keys and navigate thru' menu and select 'Service'. select using the green button and navigate through menu and select cleaning option. This will take few minutes.
Try printing some documents and check whether you have fixed. If you have not got the original print quality, Let know to guide you more technically.
have you tried opening your nokia 5200? if your confident and have the right tools, try cleaning the keypad of your phone, at the same time try realigning the keypads. however, you can refer your problem to a competent technician.
Turn on your phone using the red power/end button. While
in the programming mode the [OK] key is used to save, the left soft key
to [Exit] without saving and the right soft key [Back] to return to the
Enter ##626* (##NAM*) for NAM Programming
You will be prompted to ENTER SUBSIDY CODE
Enter 333333 (3 six times)
Press the [OK] button to select the MIN (Mobile Identification Number)
Enter your new 10 digit Cricket MIN and press [OK]
Press Navigation (arrow) down once to access the MDN (Mobile Directory Number/10 Digit Phone Number) and press [OK]
Enter your new 10 digit Cricket MDN and press [OK]
Press Navigation (arrow) down once to access the IMSI (do not change from IMSI_11_12=00)
Press the Navigation (arrow) down key twice to access the CDMA System ID and press [OK]
Enter the 1 to 5 digit CDMA System ID and press [OK]
Press the red power/end button to exit.
(mdn is your phone number min and cdma sytem id will be given by customer serv rep
I've found that the speakerphone only works closed when using the media player. Close your phone then hold down the right side key and navigate with the left side key, use the right side key to select an option. When in the media player the hold button is the right side key hold down to toggle on or off. If that is the answer your looking for.