Highlight Tutorial Videos

How to Fix Laptops without Having Schematic or Boardview

An ASRock motherboard is repaired on this video which doesn’t have any schematic or boardview files. It gets a bit difficult and confusing to troubleshoot and repair devices without knowing which component is which so watching this video is so...

Ahmad Safari

2

How to Find Similar MOSFETs

We’ve been getting a lot of questions on forum about how to replace damaged, problematic or failed MOSFETs. And as many of them can’t be found easily on the market with the same specifications, we tried to show you how to find similar MOSFETs of...

Ahmad Safari

0

How to Repair Laptop Ribbon Flat Cable

We will be repairing 2 laptops on this video which have image problems. They were taken to another repair shop before but unfortunately they were unable to fix their issues. In this video, you’ll see the troubleshooting and fixing processes of...

Ahmad Safari

0

How to Repair Charging and No Image Problem on Asus R542U

In this video we have an Asus R542U laptop which was brought to us with 3 problems: 1: LVDS doesn’t have an image output but VGA does. 2: Laptop turns OFF right after plugging out the adaptor from the laptop and in other words it doesn’t detect...

Ahmad Safari

1

Applying Voltage and Repairing Motherboard by Allegro Software

In this video there is an Acer E5-575G laptop with ZAA X32 motherboard that doesn’t turn ON. The boardview and schematic are both available but the tricky thing about this device is that the boardview file should be opened on Allegro software...

Ahmad Safari

2

How to Repair G505 that Boots up But with No image

This video is about repairing Lenovo G505 with LA-9912P motherboard which has display/ image problem. By checking the initial voltages, we realize that the device boots up completely but no image seems to appear. This video is captured live to...

Hosein Asadolahi

3

Step-by-step repair of NM-A361 motherboard

In this video you’ll see the process of troubleshooting nm-a361 motherboard as showing the process of troubleshooting laptops has been requested a lot. This laptop doesn’t switch ON and we’ve captured how to troubleshoot and repair it to let you...

Hosein Asadolahi

1

Using Ram Reader Direction instead of the Problematic USB

In this video, we have a Lenovo G50-70 laptop with NM-A271 motherboard that has a problematic USB port. We will solve the problem by connecting wire to other blocks, we use Ram reader block on this video but you can also use Bluetooth, webcam...

Ahmad Safari

0

How to Program Laptop LED by SVOD3-TNM5000-RT809 Programmer

Lately we have been getting requests on capturing a video and showing the process of programming laptop screen firmware. And even though there are programmers that can program them by default, such as Vertyanov, we will show you the process, as...

Ahmad Safari

1

All About Transformers

Following the concept of Basic Electronics, we will analyze Transformers on this video, in a way that you’ll begin with showing you its symbol and the way it functions, then you’ll see how it’s tested and the different types of this electrical...

Davood Amanikor

0

Dr-Bios Experience In Laptop Repairing Part 5 - Changing Motherboard Components

This is another video of Dr-Bios’ experience series about laptop repairing in which we’re going to show you how to change motherboard components as on most of our tutorial videos, we don’t capture the process of changing components in order to...

Hosein Asadolahi

2

How to Fix Motherboard Corrosion in Dell N5110

Today’s video is about repairing Dell Inspiron N5110 laptop which has short circuit due to being intensely burned which has caused a part of PCB to be completely removed. The video below shows you how to properly fix the damaged parts and repair...

Hosein Asadolahi

0

How to Repair MacBook A1342 that Won’t Turn ON

Today we have a MacBook A1342 that doesn’t turn ON and therefore we have decided to check it and found out that power button has a problem. And after connecting wire to power button, the problem was solved and then laptop turned ON but fan didn’t...

Hosein Asadolahi

0

Repairing Water Spillage Laptops

There is an Asus X554L laptop with water spillage problem which leaked into its board and there are water stain and electric spark marks due to short circuit. You can see repairing process of this type of problem and also see how to find the...

Ahmad Safari

0

Analyzing Power and Inverter Blocks of Samsung Monitor

In this video, there is a Samsung SyncMaster 940B LCD monitor that doesn’t turn ON and the power and inverter blocks of the monitor are analyzed and explained through schematic. In the end, we fixed the problem and explained the most common...

Ahmad Safari

0

How to Troubleshoot LCD Backlight

In this video, there is a Sony VGN-CS325J with backlight problem and as there were a lot of requests about troubleshooting and repairing older laptops with LCD screen, we decided to capture a video to show you how to distinguish fluorescent lamp...

Ahmad Safari

0

How Do Relays work & How to Test them

Relay is one of the most commonly used electronic components and on this video, which is a basic electronic video, we will analyze different types of Relay including Solid State Relay (SSR) and Electromechanical Relay (EMR). We will also explain...

Davood Amanikor

0

Dell Inspiron 14 N4050 Dis to Uma

This is how to convert Dell Inspiron 14 DV14HR MB DIS to UMA. This is tested and works 100% accurate. What you need to do is to remove the marked inductor and resistor. 🌸 💚 😊

Hosein Asadolahi

1

How to Convert HP DV6-3000 AMD Quanta LX8 Graphic to Non Graphic

In this article we show you how to convert HP DV6-3000 AMD Quanta LX8 graphic to non graphic. You only need to download the file below and do as told in the pictures. Enjoy 💚 🌸

Hosein Asadolahi

0

How to Convert Dell Vostro 3500 DIS to UMA

As the name of the article represents, here we are with a conversion. All you need to do is to make the simple changes mentioned on the pictures and get your laptop converted to UMA. Good luck ;) 💚

Hosein Asadolahi

0

How to Convert HP 4520s Discrete to UMA

This is how to convert HP 4520s graphic motherboard to non-graphic and it is a tested method. Motherboard model: H9265-4 Enjoy 💚 🌸

Hosein Asadolahi

1

How to Disable Asus X555LD RAM

A lot of repairmen usually have questions and problems with disabling On-board RAM of laptops. So we’ve decided to capture this video to show you how to disable 4GB On-board RAM of Asus X555LD with no image problem. Enjoy ;) 💚

Ahmad Safari

5

Everything about Inductor

This is another episode of Basic Electronic series in which we will analyze an electronic element called Inductor. The most important theoretical and practical concepts of inductor (Coil or choke) element are covered on this video, from testing...

Davood Amanikor

1

What is Diode – and its function in circuits?

In this video, we tried to analyze Diode, an electronic component that’s commonly used in electronic circuits. But as it’s a vast concept, we only presented important points and the usage of the component. And also different types of Diodes such...

Davood Amanikor

0

Different Types of Capacitors - How to Test Them

This video is mainly about analyzing capacitors, from showing you different types of capacitors to troubleshooting and testing them. In other hand, you’ll get to see the function of capacitors in different types of circuits, how to test them and...

Ahmad Safari

4

Analyzing CPU Power Circuit – Testing MOSFET on Board

In this video, we will show you how to test and troubleshoot MOSFETs of PWM block of CPU power on boards. PWM block of CPU power is usually made of several phase and there are more MOSFETs on this block than any other block. And it’s a bit...

Ahmad Safari

3

How to resolve " The system has detected that electric label not exist " problem

USB Key/Drive creation and running E-Label Utility 1. Remove all other Removable Disk devices from your unit and insert the USB Key/Drive that you plan to use for the E-Label Utility. This USB Key/Drive will be reformatted to FAT32 by the...

Vahab Hemmati

0

Pin Configuration for SVOD1 Programmer

Since SVOD1 programmer's access to the online database was cut off, we decided to put a list of the pin configuration of different motherboards in this article to make it easier for all users to access them. Please let us know if we missed any...

Salimeh Bolboli

1

How to Create Bootable UEFI USB Flash Drive

As you know, the process of windows installation is not a very difficult thing to do but it is a bit different in slightly newer ones which means most of them face problems in the first steps of windows installation. And as there is no videos in...

Hosein Asadolahi

1

Different Types of Crystals and How to Test them

This video is about how crystals work, their duty on circuits and last but not least, how to test them on laptop and desktop boards. Feel free to ask your questions and let us know what you think about this video 😊 Enjoy 🌸 ;)💚 This video is...

Hosein Asadolahi

3

How to Repair Asus H61M-C Motherboard

We have an Asus motherboard on this video which turns ON for a second then turns OFF right after. This process repeats itself over and over again. So on the video below, you’re going to see how to solve this problem and then, as CPU power voltage...

Ahmad Safari

0

How to Convert Discrete to UMA- A to Z

We receive many questions related to disabling laptop Graphic from website members, so we felt the need to capture a video and show you A to Z of disabling laptop Graphic from DIS to UMA. So on the video bellow you’ll see different types of...

Hosein Asadolahi

9

Not Working RAM Slot-H81M-S2PT Motherboard

There is a Gigabyte H81M-S2PT motherboard in this video that one of its RAM Slots doesn't work properly. This problem can originate from different blocks. In the below video you’ll see the process of troubleshooting and repairing this laptop...

Ahmad Safari

0

Repairing Lenovo W540 that Turns ON with Battery Only

Have you ever had a laptop which works with battery connected but it doesn’t with its adaptor? Well we have a Lenovo laptop on the video below which works perfectly with its battery but as soon as we plug in the adaptor (with no battery), it...

Ahmad Safari

0

Laptop Speaker Diaphragm Repair

We have an Asus N552V laptop in this video. With a problematic speaker that produces weird noise. And as I couldn’t find the speaker on the market, therefore I decided to capture a video and show you how to disassemble this model of Asus laptop...

Ahmad Safari

1

Asus K43SV Turns ON with NO Display

Today, we have an Asus K43SV laptop which turns ON but with no display. After disassembling the laptop and performing the initial tests, I came to realization that there is short circuit on motherboard which caused to burn different ICs on the...

Ahmad Safari

1

How to Change and Program EC chip in Lenovo G50-70 with SVOD3 and TNM5000

You can practically see how to change IT8586E IO IC and you’ll get familiar with all the details of programming IO by SVOD3 and TNM5000 programmers. Stay with us and tell us what you think about the video in the comment section :) This video is...

Admin

0

How to Repair MacBook Part 3

This is the third part of MacBook repairing videos in which we’ll continue analyzing Apple laptop schematics. And on this video you’ll see how the very important voltage, PP3_V42_G3H and SMC_RESET_L signal are generated and we’ll analyze them as...

Hosein Asadolahi

6

Repair Laptop LCD Backlight

In this video, there is a Sony VPCF1 laptop with a problematic screen backlight which means there is image but the screen is dark. These kinds of problems can originate from “Inverter” or “High Voltage” or the screen backlight might have been...

Admin

0

What to Do When a Laptop turns ON with Not Display?

Voltage Rail table is on page 2 or 3 of most schematics. This table is very valuable for laptop repairmen because it shows the presence of different voltages in order of priority on the motherboard and this table is so helpful in the process of...

Ahmad Safari

6

Lenovo B590-Solve B+ short circuit

In this video, laptop input has shorted circuit and by plugging in the adaptor, voltage gets disconnected. You’ll see how to troubleshoot the problem by the method of injecting voltage after checking power. Enjoy 🌸 💚

Ahmad Safari

0

Capacitor Failure in Repairing Graphic Card

We have a Graphic card that its image gets pixelated. After performing initial tests, we realized that the capacitors have failed. In the video below, you will see important tips in changing capacitors and how to test them. You’ll also realize...

Ahmad Safari

1

Repairing Water Spilled Asus Laptop-Random Turn ON

In this video we have an Asus X541U laptop which apparently turns ON randomly and when I checked the board, I found water spillage marks on it. And due to the fact that the oxidation of boards often occurs in voltage directions, we’ll need to...

Ahmad Safari

0

How to Ohm Check Laptop Motherboards using Digital Multimeters

When we are asked technical questions on the Technical Support section of the website, we realize many members have not performed the initial tests or have just become acquainted with the website. That's why in this tutorial video, I explained...

Ahmad Safari

5

How to Repair laptop CPU Fan

In this video, we have a Sony S series laptop that we did not find its fan on the market. In this short video, we will solve the problem so that if you didn’t find a device’s fan, you can fix the issue with this method or similar methods. Stay...

Ahmad Safari

2

How to Solve Not Detecting VGA Port Problem in SAMSUNG Monitor

In this video, there is an SA300 Samsung monitor that has 2 DVI and VGA ports and by plugging in the VGA cable, it doesn’t have image (display). This problem is a very common one in Samsung monitors, so make sure to watch the video ;) Stay with...

Ahmad Safari

0

basic electronics in laptop repairing

It is a known fact that if someone wants to learn something -and anything- it would be best to learn it from the beginning and basics to intermediate and then at last to the advanced or professional levels. In this way he/ she would be a highly...

Hosein Asadolahi

6

How to Test Dual MOSFETs

There are some MOSFETs on some boards, similar to the picture below, which are so similar to single MOSFETs. In fact they are single High and Low MOSFETs that come in one package. How can you distinguish a single MOSFET from a Dual MOSFET before...

Ahmad Safari

1

Repairing Laptop LED Backlight | Backlight Failure

We have captured and published a couple of videos related to repairing LCD backlight but this one is a bit different ;). On the video below, the laptop has dark backlight and the LVDS flat cable has a problem. The dark screen doesn’t get solved...

Ahmad Safari

4

Disabling Onboard RAM of V5-572G Laptop

Disabling onboard RAM of V5-572G laptop is tested and approved by Dr-Bios.com technical team and the solution is also shared on the website for the first time. Enjoy 🌸💚 ASPIRE V5-572G MODEL NO:ZRK DA0ZQKMB8E0 REV E ZQK

Ahmad Safari

3

Macbook Pro A1286 DIS TO UMA

In this article we’re going to show you how to convert MacBook Pro a1286 2011 - 820-2915 Dis to UMA by applying some simple changes. All you need to do is to remove Graphic Chip and connect wire exactly as shown in the pictures.

Hosein Asadolahi

44

How To Measure Drawn Amperage Of Systems

Sometimes a power supply or an adaptor has no power to boot up your system but you want to know how much current your system needs to switch ON?! In this kind of situation, you need to measure drawn current of the system using a multimeter. In...

Ahmad Safari

1

Solve "Manufacture Programming Mode Is In Unlock Mode" Error

We usually face “Serial Number” or other similar errors after programming Bios in HP laptops. We have a video on the website in which we have fully shown you how to solve the error. But the problem is that in newer devices, we face “Manufacture...

Ahmad Safari

7

How To Solve CPU Power Voltage Absence In Z570 Lenovo Laptop

In this video, we have a Z570 Lenovo Laptop which switches ON as soon as plugging in its adaptor. All the voltages are present except for CPU power voltage. We’ll check CPU power block and you can see how to remove and test capacity of...

Ahmad Safari

11

How To Repair Backlight Problem In Fujitsu AH54

In this article we have a Fujitsu AH54 laptop that turns ON but with no backlight on display. As there this model didn’t have any schematic files, we had to use LED panel to recognizing jack pins and solve the problem. This laptop has 3 problems...

Ahmad Safari

0

How to Change Mac Address on Modems

In this article we are going to teach you how to change the Mac address on Modem devices :giggle: 💚 Most of the times, to solve software problem of a modem, it is necessary to program Flash IC inside a modem by programmers such as TNM 5000. So...

Vahab Hemmati

0

WDS-620_BGA-REWORK-STATION

As you may remember, we posted several articles about BGA machines and their function, equipment, accessories and explained their descriptions. But in this video, we would like to talk more specifically about one of them, WDS-620 BGA machine. And...

Hosein Asadolahi

0

Everything About TNM5000 Universal Programmer

23000 Supported Devices Flash Memory (Parallel / Nand /Serial) , EPROM , EEPROM , Serial EEPROM , Microcontroller , NVRAM , FRAM , CPLD , PLD , FPGA). 48-Pins ZIF Socket with Pin Continuity tester & 10-Pins ISP/JTAG Connector. USB 2.0 High...

Admin

0

How To Program KBC Chip By TNM5000 Programmer (Tutorial Video)

In this tutorial video, you get to know how to program IC/IO by TNM5000 programmer. Hope you enjoy watching this video and watch our other videos and we are looking forward for your feedbacks.

Hosein Asadolahi

1

How The IC IO To Take ROM Backup RT809F?

How the IC IO to take ROM backup? K45VD EC KB9012QF A3 Column 1 Column 2 Column 3 Column 4 Column 5 Name / Symbol KB9012 RT809F JKB1/KEYBOARD Note EDI_CS /KSI4 59 5 15 5 RT -> 15 KB EDI_CLK /KSI5 60 10 19 10 RT -> 19 KB EDI_DIN...

Admin

0

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