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How to fix laptop internet not working

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In this article, we are going to see how to fix the laptop internet not working

 

Network section in laptop

The Ethernet port is responsible to network with another computer or the internet.

Realtek, Broadcom, and Atheros are the main manufacturer of network chips. Network chips work on 3 volts and require 25mhz crystal to generate a clock.

 

Working on laptop internet via the ethernet port

Firstly, PCH sends a PCI-E signal to the network chip. The network chip also receives PLTRST signal, 3.3 volts signal, and also 25mhz crystal signal.

Secondly, the network chip sends the TXD signal to the transformer chip in the laptop motherboard. Then transformer chip sends signals to RJ45Connector and sends the RXD signal to the network chip.

 

how to fix the laptop internet not working

Firstly, check whether proper drivers have been installed on the laptop operating system.

Secondly, check the RJ45 connector for broken or any damage to it. If it’s damaged or broken then replace it.

Thirdly, check the power coming on RJ45 and also check for the crystal’s clock frequency.

Finally, if everything else fails replace the network chip.

How to fix laptop USB not working

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In this article, we are going to see about How to fix laptop USB not working problem

How to fix laptop USB not working

Firstly check for drivers installed on the operating system.

Secondly, check for the physical connector for the USB port whether is broken or damaged, or both.

Thirdly, Check whether 5 volts coming on pin no. 1 of the port or not.

Fourthly, check whether the coil giving signal volts at pin numbers 2nd and 3rd.

Finally, if everything else fails replace PCH.

 

 

USB 2 pinouts

No Name Description
1 VBUS Red
2 D- White
3 D+ Green
4 GND Black
Shell Shield Connector Shell

 

 

USB 3 pinouts

No Name Description
1 VBUS Red
2 D- White
3 D+ Green
4 GND Black
5 SHA_SSRX Blue
6 SHA_SSRX+ Yellow
7 GND_DRAIN GROUND
8 SHA_SSRX- Purple
9 SHA_SSRX+ Orange
Shell Shield Connector Shell

 

 

The laptop repairing help guide gives you insights and a complete guide on repairing information for laptops.

My Laptop Sound Not Working Windows 10

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In this article, we are going to see My Laptop Sound Not Working and How To Fix it for Windows 10.

There are several possible solutions for fixing sound or audio problems in Windows 10:

Check your sound settings

Make sure your volume is turned up, your audio device is selected as the default playback device, and your sound driver is up to date. You can access these settings by right-clicking the volume icon on the taskbar and selecting “Open Sound settings.”

Restart your audio services

Sometimes, audio services can become stuck or stop working, causing sound issues. To restart them, open the Services app by typing “services.msc” into the Start menu search bar, find the “Windows Audio” and “Windows Audio Endpoint Builder” services, right-click on each of them, and select “Restart.”

Update your audio driver

Outdated or corrupted audio drivers can also cause sound problems. You can update your audio driver by going to the manufacturer’s website and downloading the latest driver for your audio device.

Check your cables and connections

If you’re using external speakers or headphones, make sure they’re properly connected to your device and the audio jack. Try unplugging and plugging them back in to ensure a secure connection.

Run the audio troubleshooter

Windows 10 has a built-in audio troubleshooter that can help diagnose and fix common sound issues. To access it, go to “Settings” > “Update & Security” > “Troubleshoot” and select “Playing Audio.”

Check for Windows updates:

Sometimes, sound problems can be caused by outdated system files. Make sure your device is up to date with the latest Windows updates by going to “Settings” > “Update & Security” > “Windows Update” and selecting “Check for Updates.”

If none of these solutions work, it may be a hardware issue with your audio device, and you may need to contact the manufacturer for further assistance.

Laptop Motherboard Chip Level Audio Section

The audio chip is normally realtech, context or Yamaha. This chip receives digital audio signals and converts them into analog format. This chip requires two power sources 3 volt and 5 volts.

How to fix the laptop audio not working problem

Firstly, check the driver installed over the laptop.

Secondly,  check whether the headphones sound coming or not. If the headphone sound is coming then check for 4-ohm resistance.

Thirdly, check for 3.3 volts and 5 volts section whether 3 volts and 5 volts are coming when turning on the laptop.

Finally, if everything else fails then replace the audio chip and see. The audio must be working now.

Working on laptop audio section

Firstly laptop audio chips will get 3.3 volts DVDD and 5 volts AVDD signals.

Secondly, PCH sends 5 volts DATA IN signal to the audio chip. In response to it it audio chip sends a 5 volts DATA OUT signal. Also, the audio chip sends a BIT CLOCK signal.

Thirdly, PCH sends a RESET signal to the audio chip.

Lastly, an audio chip provides analog signals to the headphone jack and speakers.

The laptop repairing guide consists of repairing laptop parts and motherboards.

How to fix the hard disk not working

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In this article, we are going to see How to fix the hard disk not working problem

 

HDD SATA Connector

SATA is a very important part of the motherboard. It communicates with the hard disk and a DVD writer. SATA port has two parts one is data and another is power. in the laptop motherboard, the hard disk runs on 5 volts. On the data port side, there is a seven-pin connector in that 4 pins are used for data transmission and reception and the rest pins are signal ground.

 

How to fix the hard disk not working?

Firstly, replace the hard disk with another hard disk and check whether the problem is solved or not.

Secondly, check connectors physically whether they are loose or broken. If they are loose or broken then resolve them.

Thirdly, whether 5 volts are coming on the connector or not. If it’s coming and the hard disk is not starting then replace the 4 coupling capacitors in the SATA port.

Fourthly, check 5 volts why not coming on the connector and resolve it. Now 5 volt must be coming.

Finally, if everything fails then replace PCH.

How To Fix Bios ME Region Problem In Laptop – DisplayMonk

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BIOS Pins Descriptions

Below is the description for BIOS pins:

Symbol Description
CS# Chip select.
SI/SIO0 Serial Data Input (for 1 * I/)) / Serial Data Input and Output (for Dual Output mode).
S0/SIO1 Serial Data Output (for 1 * I/O)/ Serial Data Output (for Dual output Mode).
SCLK Clock Input.
WP# Write protection.
HOLD# Hold, to pause the device without deselecting the device.
VCC +3.3 volt power supply.
GND Ground

What is Me Region

ME (short form of Management Engine or Manageability Engine) is a drive stored in BIOS and only on recent Intel platforms (Core i). Secondly, ME is used by first integrated into the Network Card and then transferred to Chipset (GMCH, then PCH, and MCH).

ME is stored in the source BIOS however it works completely independent of the main CPU. Lastly, it works even when the machine is in hibernation or shutdown mode but still plugged in.

How Does ME Region Work With PCH

When booting the computer, ME Region will receive all information from PCH to compare with ME Region information stored in the BIOS. So even if you save this BIOS for other computers even with the same model, PCH within also been replaced, there are still chances that errors arising from ME Region.

The reason is that the information from the new PCH does not match ME Region stored in the BIOS. Thus, ME Region is not faulty but ME Region is not working or not working well because the information does not match when PCH is replaced with a new chip or from another main unit. There are also some cases where the ME Region.

The Faults Arises When ME Region is Faulty Or Inactive

Fault 1.  When you turn on the laptop on the first attempt, the laptop will turn on but the display will not come. At the same time turn your laptop off by pressing the power button. Try the second attempt and turn your laptop on, it will show the display now.

Fault 2. dIn the second situation, you will try several attempts to turn your laptop on, but it will not show any display. In the meantime, it shows out the display at any try and your laptop along with Windows starts running perfectly. But, when you shut it down and start again, it creates the same problem of not showing the display.

Fault 3. Sometimes the laptop fan run at full speed and PCH heats up, whether the display comes or not but your laptop will turn off within 15 sec to 5 min.

Fault 4. When you press the power button, the display comes after 20-60 seconds.

Fault 5. In some cases, CPU temperature is always set at 100%

Fault 6. One of the faults is if that laptop runs for 30 seconds, 30 minutes,s or 1 hour and sometimes automatically shut down or restarts.

Fault 7. Sometimes there is a Windows OS loading problem.

Easy Intel Clean Me Region software Download

Below are steps to fix ME region problems. But before it kindly removes the BIOS from the motherboard and read BIOS with help of the BIOS programmer. Save BIOS as ‘old.bin’.

1st step: Download intel ME/ txe injector.

2nd step: Then, download the database (Intel ME firmware).

3rd step: Run intel ME/txe injector. It will ask first time to locate a folder where you save (intel me firmware). After you locate the folder, it will take 2 to 15 seconds to load (intel me firmware). Then lastly it will show the menu.

4th step: Just click (open bios) and select your old.bin desired bios.

5th step: Click on the (save new bios) button, and the software will clean ME Region Bios.

That’s all, your problem will be resolved. This is how to clear ME region in the laptop. You can troubleshoot more things from the laptop.

Conclusion

It’s important to note that modifying or repairing a laptop’s motherboard can be a complex task that requires a high level of expertise and knowledge. Attempting to repair a laptop motherboard without the necessary experience or training could lead to further damage to the device.

Additionally, it’s important to ensure that any software used for repairing a laptop’s motherboard is obtained from a reputable source and used in accordance with the manufacturer’s instructions and guidelines.

SPI BIOS works on 3 volt at its VCC pin number 8. Nowadays new BIOS works on 1.8 volt.You can program it using a BIOS programmer.

If you need assistance with repairing a laptop’s motherboard, it may be best to seek the assistance of a qualified professional or contact the manufacturer of your device for guidance.

SIO Pins And Functions

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Firstly, before going to see SIO pins and their functions we will know what exactly is SIO. We will see it in this laptop motherboard repair guide.

SIO stands for Super Input Output Controller. SIO is sometimes called KBC or EC also. The Super I/O chip is managed in the motherboard it controls. also, it manages most of the I/O functions on the motherboard. Normally SIO has 128 pins.

Some Features Of SIO

Below are some features of sio

  • Control power and all switches
  • It manages fan and temperature
  • Manages keyword and mouse

 

Some Of The Common Manufacturers Of SIO

Below are some of the common manufacturers of SIO

  • ITE
  • SMSC
  • NUVOTEN
  • WINBOND
  • ENE

 

Signals To Run SIO

SIO requires four things to work. Below are signals to run SIO

Signal Work
VCC Gives the power to work 3.3 volt
EC_RTC EC RST means reset to SIO 3 volt
CLOCK 32.7 khz frequency from the main crystal
BIOS Bios input to execute commands

 

SIO Pins And Their Functions

Below are SIO pins and their functions

 

SIGNAL NAME TYPE DEFINITION
FRAME PCH to SIO frame signal from PCH indicating data processing
CLK 33mhz PCH to SIO 33mhz clock signal INPUT. It means the clock department is ok.
PLTRST PCH to SIO platform reset 3 volt saying all power ok reset generated.
BIOS_RD SIO to BIOS SIO reads BIOS
BIOS_CS SIO to BIOS SIO selects BIOS
BIOS_CLK SIO to BIOS clock signal
BIOS_WR SIO to BIOS write signal to bios
ACIN VIN to SIO adapter present signal
AC_PRESENT SIO to PCH adapter present signal to PCH
S5_ON SIO to Always always voltage turn on
SUSPON SIO to SUSPEND release always voltage to suspend
MAINON SIO to Step 2 turn on 1.5 volt, 1.05 volt
RUNON SIO to Step 2 turn on 1.5 volt, 1.05 volt
VR_ON SIO to VRM turn on CPU core voltage
SPS_PWROK PWM to SIO suspend voltage ok
HWPG PWM to SIO power ok to SIO without CPU
ECPWROK (PM_PWROK)SIO to PCH SIO to PCH  all power ok
TEMP_BAT BAT to SIO battery temperature
XCLK CLOCK 32.7 khz 32.7 khz input
RSMRST SIO to PCH resume and reset signal 3 volt
ECON SIO to PWM turn on 3.3 volt and 5 volt
PCH PWR ON SIO to MOSFET turn on PCH power
LAN_PWR SIO to LAN section turn on network
NBSWON (KBC_PWRBTN) PWR BTN to SIO power button 3 volt to zero
DNBSWON (PM_PWRBTN) SIO to PCH power on signal to PCH
SUSB (SLP_S3) PCH to SIO turn on power
SUSC (SLP_S4) PCH to SIO turn on power
USBPW_ON SIO to USB turn on USB
TPCLK SIO to TouchPad touchpad
TPDATA SIO to touchpad touchpad
MUTE SIO to Audio mute audio
FANSIG FAN to SIO fan rpm input to SIO
VFAN SIO to Fan turn on fan
PROHOT CPU to SIO CPU hot signal
SMBUS CLK SM BUS CLOCK system management signal
SMBUS DATA SM BUS DATA system management signal
KS SIGNAL KEYBOARD keyboard
ECRST reset signal to SIO
WIFI_ENABLE SIO to WIFI turn on the wifi card
LID_CLOSE LID SWITCH TO SIO LID SWITCH (magnetic sensor)
IMVP_PWRGD CORE TO SIO VRM CPU core voltage ok power good

 

 

Below Mention SIO Are Programmable

In the newer generation motherboard, EC BIOS merge into SIO means if SIO is bad then we have to replace SIO and copy EC BIOS into SIO. This SIO is called programmable SIO.

Below are some examples of programmable SIO’s:

  • ite it8585e programmable
  • ite it8586e programmable
  • ite it8985e programmable
  • ite it8587e programmable
  • ite it8522 programmable
  • ite it8587e programmable
  • ite it8589 programmable
  • ite it8522 programmable
  • ite it8380e programmable 192kb
  • ite it8586vg programmable
  • ite it8995e-128 programmable
  • ite it8886e programmable
  • ite it8386 programmable
  • ene kb9012 programmable
  • ene kb9016 programmable
  • ene kb9018 programmable
  • ene kb9022 programmable
  • ene kb9028qc programmable
  • ene kb9010 programmable
  • ene kb3930qf/b1 programmable
  • nuvoton npce288na0dx programmable
  • nuvoton npce388na0dx programmable
  • SMSC MEC 1609 programmable

 

In this way, you can do laptop motherboard repair using SIO diagnosing.

 

 

 

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