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Here's a solution that may possibly help fix and repair Nokia 2690 LCD Display problems like white screen , blue screen, black or blank screen displays . If you're having tried to replace a new LCd display module replacement when trying to repair display problem on Nokia 2690 but nothing happens and the problem still exists. This solution below shows the connection of LCD display data signals from the application processor chip to  each single pins of the LCD connector. 2690 LCD display connection line tracks ( display jumper ways) The solution above shows a detailed information of the display data signal being feeds from the application processor IC to the LCD display pin connector. Each line is been filtered by a resistor that has resistance value of 33ohms each. You may check each resistor and trace each particular line paths, replace the resistor if found damaged or by then apply a jumper for an open line or cut connections.

Here's the solution that may possibly help fix and repair Nokia 2690 Earpiece Speaker No audio sound output problem. 2690 earpiece speaker jumper ways You may need to ensure and check that the earpiece  speaker is working before replacing those components composed of filter coil and an ESD filter. If all of those components were all seem good the problem may lies on a broken line paths from the power and audio IC (AVILMA). So , for further troubleshooting you may need to rework the power supply chip that might possibly fix and repair Nokia 2690 Earpiece Speaker Sounds problem.

Here's the full and complete solution for Nokia 2690 Keypad line tracks and keypad filter IC jumper ways including the power on -off key connection. This solution below may possibly help fix and repair a certain keypad malfunction that stop responding on a damaged Nokia 2690 cell phones. Nokia 2690 keypad Line Tracks and filter IC jumper ways solution with power ON/OFF key View larger image here Ensure that the keypad membrane is perfectly clean before trying to trace each corresponding keypad keys that is not responding. Majority of each group of connection has three keys are connected together, therefore if only one or two keys are not working, the problem may lies on open line tracks. If more than three or all of keys are not working the problem may lies on a damaged EMI-ESD filter chip.