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Hello everyone, today let's learn how to brush BIOS

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This lesson is divided into three parts

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First, why brush the BIOS

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Second, tools required for brushing the BIOS

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Third, the operation procedure for brushing the BIOS

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First, let's look at the reasons for brushing the BIOS

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The BIOS stores important hardware data

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At the same time, the BIOS is a fragile part of the mainboard, which is easy to be damaged

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If the BIOS is corrupted, the system will not work

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Common faults after BIOS damaged dinclude:

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failure to start the machine, no display on startup, alarm sound on startup,

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failure to save CMOS setting information, failure to pass the startup self-test,

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and failure of a device to run properly after entering the system

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These are related to BIOS corruption

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The causes of BIOS corruption are usually: virus damage, abnormal shutdown,

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static electricity, low CMOS battery power, application or software reasons

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Tools required for brushing the BIOS

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Usually we brush BIOS in two ways, one is online update,

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this method only supports the normal operation of the computer boot, and the update process can not power off

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The other is through the programmer to write offline,

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which is the maintenance personnel commonly used method

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There are two common programmer sizes

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One is the RT809F, which is this small one

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Another one is the RT809H, which is bigger

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After having the programmer,

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we also need to install the corresponding type of programmer software in the computer system

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For example, we bought RT809F,

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to download the RT809F programming software

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If we buy RT809H, we need to download the RT809H programmer software, download and install it

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Next, let's take a look at the operation steps of brushing BIOS

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We need to prepare in advance the BIOS program that we need to write

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Then remove the BIOS chip on the mainboard and put it on the jump seat

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Step two, we're going to put this jump seat on the top of the programmer

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Make sure the direction is not reversed,

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the programmer has an arrow on it

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The arrow points down, which means that the seat has to be aligned at the bottom

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when it's placed on the programmer

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And there's a notch on it, which means the first pin of the chip is pointing up

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In the third step, we connect the RT809H to the computer through a USB cable

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In the fourth step, we find the RT809H icon on the desktop,

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run the program, and the screen will appear

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Step 5, select the chip

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When choosing a chip, there are two methods

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The first is to manually input the chip model,

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select the manufacturer of the chip and the corresponding model, and click Sure

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The second is to click "intelligent identification chip ID",

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which will pop up a dialog box

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In this dialog box, we select Series 25 SPI Flash,

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voltage value of 3.3V, click "OK"

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Move on to step 6

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After the chip recognition is successful,

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we can see the chip number, and then we click "Read"

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The programmer will automatically read the BIOS program in the chip

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When the progress bar reaches 100%,

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OK will be displayed on the screen, indicating that the read is successful

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Step 7, save the original BIOS program after the name,

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or the mainboard model

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Step 8, open the new BIOS program you want to write,

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and just click "Open"

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And then we go to the program that we want to write, and click Open

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And then step 9, click Write

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After clicking "Write", we wait for the progress bar below to reach 100%

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Okay, so that's how to brush the BIOS