from the Galaxy S9+ and

Sunday, October 16, 2016

All Internet of Things Forecasts Slope Up and to the Right

- On the audio side of things is a headphone jack (plus the side one via the detachable cooler mentioned earlier), DTS Headphone:X with 7.1 virtual surround sound and Hi-Res Audio support. The highlight, though, is the front facing stereo speakers that come with a ‘smart amplifier’. After our hands-on time, they’re easily some of the most powerful we’ve heard on a phone. from the Galaxy S9+ and, well we have collected a lot of data from the field directly and from many other blogs so very complete his discussion here about , on this blog we also have to provide the latest automotive information from all the brands associated with the automobile. ok please continue reading:

This solution may used as a guide to fix and repair Nokia 2630 LCD screen display problems like white screen, blue screen, blank or empty screen displays.

After ensuring that the LCd screen module is okay or already tried installing a new replacement and then also ensuring that the device firmware is successfully flash or restored,
you may check and or replace the component showed on the solution below.

Nokia 2630 White, Blank and Blue Screen Display Problem Solution

Check the LCD Pin Connector, make sure that is free from dirt and oxidation build up.
There are three Resistors used on the display data connections, this reistors has 100 ohms resistance value, you may check or replace this components. If the three resistors is okay and the problem still exists, you may suspect that the problem may lies on a faulty UPP CPU IC.

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This solution may used to troubleshoot and repair a damaged Nokia 7230 that result Display problem issues like white screen, blue screen, blank or black screen, garbled and saturated screen displays that is not due to LCD Screen Display Module problem.
This solution may possibly help fix and repair Nokia 7230 after ensuring that the LCD screen display module is working okay and or already tried installing it a new replacement spare LCD module.

Nokia 7230 Display Problem Repair Solution

nokia 7230 display jumper ways and tracks

The solution above shows the Line tracing spots from the LCD flex pin connector to a certain components On Nokia 7230 PCB Board. You may check and trace this line tracks and check the corresponding components connected to it. If all the line tracks is okay. You may then suspect that the application processor or CPU is faulty or being damaged.
Please take note that handling CPU IC is complicated and needs expertise, so observed extra precautions.

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Here's the solution for Nokia N97 Earpiece Speaker No audio sound can be heard over it from a caller.
This solution may only works and can be applied after ensuring that the Earpiece Speaker and the Flex cable wire is working okay or already replaced but seems nothing happen and the problem still exists.

This solution below shows the line tracks of the earpiece speaker connection to certain components that needs to be check for further earpiece speaker repair on Nokia N97.

Nokia N97 Earpiece Speaker No Sound Repair Solution

nokia N97 earpiece speaker jumper ways tracks

If the speaker and the flex cable is already checked or been replaced but does not solved the problem you may then check the corresponding components shown on the solution above.
There is a Filter Coil and an ESD Protector chips is used in the circuit, you may start to check on that spots. You may also trace the line paths from the Flex Pin connector through to the said components.

If those components seems working well or already tried by replacing them,You may then try to re-flow or reheat the Power and Audio IC or Reworking it might possibly solved the problem..

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Here's the full keypad solution for Nokia 7230 keypads failure or malfunction.
This solution may possibly help fix Nokia 7230 if any certain keys stop responding or not working.

This solution shows the line paths of the Numeric keypads only, the navigation keys like SELECT, UP, DOWN, LEFT, RIGHT, Soft Left, and Soft Right and including the Power Key are connected within the Flex keypad membrane, so if the above keys only stop responding you may need to check and replace the flex cable first before using this solution below. Since all keys including the Upper keys or Navigation keys and the Numeric keys are both connected to the EMI-ESD filter IC. There is a certain point and possibility that all of these keys may not work or stop responding due to a water damaged, you may then proceed to use this solution below.

Nokia 7230 Keypad IC Jumper ways and line tracks

nokia 7230 keypad not working jumper and repair ways tracks

The numeric keys are group by outer and inner core layers of connections. There is a resistors which has a resistance value of 470 ohms that is being used in particular connections, you may check and replace this components also if found damaged.
The ESD-EMI filter chip protect the circuit from Electrostatic hazards, there is a possibility that this chip will breakdown and cause the keypad not to work or function, for it cuts off the its connection line paths through to the Application Processor Chip or CPU. Some factors are those due of water damaged, dirt, molds and oxidation build up.

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Here's a solution for Nokia N97 backlight LED on the QWERTY keys not working or failed to light up.
This solution can be used if the keypad membrane flex is not damaged but the LED backlight still won't light up.

Nokia N97 Backlight LED Not Working Solution

The solution above shows the qwerty keypad backlight LED circuit, it is composed of LED driver IC and filtering Resistors. These Resistors has a 0 ohms resistance value, you may check first these resistors before troubleshooting further.
The LED driver needs the Battery Voltage which is 3.7 volts that came across with red color highlighted component Resistor, check that voltage and continuity to the battery B+ terminal.
If all the Resistors were okay, you may then proceed to check or replace the LED Driver IC.

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Here's the solution for Nokia N97 Send, End and Menu button keys not responding problem. This solution may possibly help fix and solved if the upper keypad keys stop working.
After ensuring that the upper keypad flex is okay but still the Send, End and Menu keys won't work you may then use and apply this solution below.

Nokia N97 SEND, END and MENU keypad keys failure Solution

nokia n97 menu send end key jumper ways tracks solution

The above solution shows the connection of the upper keypad keys line paths from the pin con connector through to the EMI-ESD filter chip. This filter IC also shared and being used for the camera module. So if both camera and and the upper keys are not working you may suspect that this chip is faulty or already damaged.
If the flex cable is okay and or already tried replacing a new one but the problem still exist, you may then check and replace the EMI-ESD filter IC. And don't forget to ensure that the pin connector is perfectly clean.

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Here's the solution that may possibly help fix and repair a damaged or malfunction qwerty keys on Nokia N97. This solution works if the N97 qwerty keypad membrane is already been replaced but some of the keypad keys still not responding.

The solution below shows the line paths of the Qwerty keypad connection of Nokia n97 PCB Board. This connection pattern shows the tracing guides including the qwerty keypad filter IC through to the Keypad pin connector.

Nokia N97 QWERTY Keypad Failure Solution

N97 Keypad Filter IC Jumper Ways

There are two keypad filter chips used on Nokia N97 keypad circuits. You may check and replaced these EMI-ESD filter IC after ensuring that the QWERTY keypad membrane flex seems working fine and or already tried to replace a new replacement spare. Check and ensure also that keypad Pin connector are of free from dust and oxidation build up.