ADC miner display can not identify equipment
Publish: 2021-05-07 10:55:54
1. 1. First, right-click the computer and select properties
2. After opening properties, click device manager
3. You can see that there is only USB root hub
4. Double click to open these options, select the power management tab, and remove the check that allows the computer to turn off the device for saving
5. After completing the above steps, restart the computer, open it again and check to make sure that the hook has been removed, because sometimes the system will add it by default, and then the system will recognize the USB device< First, the computer can't recognize the USB device< Second, USB devices cannot be recognized by computers. We have to judge whether it is the computer or the USB device. We can use other USB devices to test whether the computer has any problems
if it's a computer problem. Is your computer damaged by virus. Is the driver of USB2.0 well installed or incompatible. There is no software conflict (first solve the software problem) general situation out of a driver installation tips
if it's a computer hardware problem. First, we use the multimeter to measure the four USB wires (red + 5V white data data green data black ground wire) and the red lead of the multimeter to the ground and the black lead (white line and other lines). If the resistance value changes too much, it can be judged that it is the South Bridge problem. It shows that the USB mole inside Nanqiao is burnt out
let's take a look at the USB devices outside. Now many of them need drivers. Even if there is no driver, there will be no unrecognized situation. There are several situations that cannot be identified. A USB data line or poor contact, generally contact that place, because the time is long, there may be rust inside, there may be bulging things, there may be something blocked inside. Second, the USB line is blocked. If the red line is blocked, there will be no response. If the white line is blocked, it cannot be recognized. It's impossible to recognize the green line. The white line and the green line can't be reversed. It's also not recognizable. There is no response even if the black line is blocked. This measurement method has been mentioned above
attention. Low 5V red line voltage can also lead to unrecognizable.
internal problems of three USB boards. 1. The crystal oscillator is poor and does not vibrate. 2 crystal oscillator capacitance (20p) has two
3 poor reset capacitance resistance. The reset voltage is too low and high. 4. The three terminal IC is not good enough to supply voltage to the IC. 5
2. After opening properties, click device manager
3. You can see that there is only USB root hub
4. Double click to open these options, select the power management tab, and remove the check that allows the computer to turn off the device for saving
5. After completing the above steps, restart the computer, open it again and check to make sure that the hook has been removed, because sometimes the system will add it by default, and then the system will recognize the USB device< First, the computer can't recognize the USB device< Second, USB devices cannot be recognized by computers. We have to judge whether it is the computer or the USB device. We can use other USB devices to test whether the computer has any problems
if it's a computer problem. Is your computer damaged by virus. Is the driver of USB2.0 well installed or incompatible. There is no software conflict (first solve the software problem) general situation out of a driver installation tips
if it's a computer hardware problem. First, we use the multimeter to measure the four USB wires (red + 5V white data data green data black ground wire) and the red lead of the multimeter to the ground and the black lead (white line and other lines). If the resistance value changes too much, it can be judged that it is the South Bridge problem. It shows that the USB mole inside Nanqiao is burnt out
let's take a look at the USB devices outside. Now many of them need drivers. Even if there is no driver, there will be no unrecognized situation. There are several situations that cannot be identified. A USB data line or poor contact, generally contact that place, because the time is long, there may be rust inside, there may be bulging things, there may be something blocked inside. Second, the USB line is blocked. If the red line is blocked, there will be no response. If the white line is blocked, it cannot be recognized. It's impossible to recognize the green line. The white line and the green line can't be reversed. It's also not recognizable. There is no response even if the black line is blocked. This measurement method has been mentioned above
attention. Low 5V red line voltage can also lead to unrecognizable.
internal problems of three USB boards. 1. The crystal oscillator is poor and does not vibrate. 2 crystal oscillator capacitance (20p) has two
3 poor reset capacitance resistance. The reset voltage is too low and high. 4. The three terminal IC is not good enough to supply voltage to the IC. 5
2. From my maintenance experience, I can't recognize
first, the computer can't recognize the USB device< Second, USB devices cannot be recognized by computers. We have to judge whether it is the computer or the USB device. We can use other USB devices to test whether the computer has any problems. If it's a computer problem. Is your computer damaged by virus. Is the driver of USB2.0 well installed or incompatible. There is no software conflict (first solve the software problem) general situation out of a driver installation tips. If it's a computer hardware problem. First, we use the multimeter to measure the four USB wires (red + 5V white data data green data black ground wire) and the red lead of the multimeter to the ground and the black lead (white line and other lines). If the resistance value changes too much, it can be judged that it is the South Bridge problem. It shows that the USB mole inside Nanqiao is burnt out
iPhone, iPad, iPod and other apple mobile procts need drivers to make windows recognize your Apple device when they are connected to PC. the problem can be solved by installing iTunes.. But it doesn't rule out that the USB cable is broken. If you have installed iTunes before, but still can't recognize the Apple device. There are three problems: first, the data cable is broken; second, the USB port of the PC is faulty, so it can be plugged into other USB ports; third, there is a problem with the connection port of the iPhone
let's take a look at the USB devices outside. Now many of them need drivers
even if there is no driver, there will be no unrecognized situation. There are several situations that cannot be identified
if the USB data cable is not connected or in poor contact, it usually contacts that place, because it may be rusty and bulging inside for a long time, or something may be blocked inside
the second USB line doesn't work. If the red line is blocked, there will be no response. If the white line is blocked, it cannot be recognized. It's impossible to recognize the green line. The white line and the green line can't be reversed. It's also not recognizable. There is no response even if the black line is blocked. This measurement method has been mentioned above
attention. Low 5V red line voltage can also lead to unrecognizable.
internal problems of three USB boards. 1. The crystal oscillator is poor and does not vibrate. 2 crystal oscillator capacitance (20p) has two
3 poor reset capacitance resistance. The reset voltage is too low and high. 4. The three terminal IC is not good enough to supply voltage to the IC. 5.
the main IC is not good
first, the computer can't recognize the USB device< Second, USB devices cannot be recognized by computers. We have to judge whether it is the computer or the USB device. We can use other USB devices to test whether the computer has any problems. If it's a computer problem. Is your computer damaged by virus. Is the driver of USB2.0 well installed or incompatible. There is no software conflict (first solve the software problem) general situation out of a driver installation tips. If it's a computer hardware problem. First, we use the multimeter to measure the four USB wires (red + 5V white data data green data black ground wire) and the red lead of the multimeter to the ground and the black lead (white line and other lines). If the resistance value changes too much, it can be judged that it is the South Bridge problem. It shows that the USB mole inside Nanqiao is burnt out
iPhone, iPad, iPod and other apple mobile procts need drivers to make windows recognize your Apple device when they are connected to PC. the problem can be solved by installing iTunes.. But it doesn't rule out that the USB cable is broken. If you have installed iTunes before, but still can't recognize the Apple device. There are three problems: first, the data cable is broken; second, the USB port of the PC is faulty, so it can be plugged into other USB ports; third, there is a problem with the connection port of the iPhone
let's take a look at the USB devices outside. Now many of them need drivers
even if there is no driver, there will be no unrecognized situation. There are several situations that cannot be identified
if the USB data cable is not connected or in poor contact, it usually contacts that place, because it may be rusty and bulging inside for a long time, or something may be blocked inside
the second USB line doesn't work. If the red line is blocked, there will be no response. If the white line is blocked, it cannot be recognized. It's impossible to recognize the green line. The white line and the green line can't be reversed. It's also not recognizable. There is no response even if the black line is blocked. This measurement method has been mentioned above
attention. Low 5V red line voltage can also lead to unrecognizable.
internal problems of three USB boards. 1. The crystal oscillator is poor and does not vibrate. 2 crystal oscillator capacitance (20p) has two
3 poor reset capacitance resistance. The reset voltage is too low and high. 4. The three terminal IC is not good enough to supply voltage to the IC. 5.
the main IC is not good
3. Driver problem, port problem, if you are 3.0 interface, change to 2.0. Download good driver
4. Right click the unknown device and select update driver. If the installation fails, the next driver wizard on the Internet will run after installation, and the installation will be detected automatically
5. Unknown_Error
6. 1. The quality problem of the mobile phone, such as the problem of replacing the
2 connecting cable within the warranty period, is still a new problem of
3 USB port. Take out the box, pull out the USB cable and plug it in again. If you have time to clear the st, the effect will be better
(note if it's a laptop, its USB should be connected by sheet metal wire. After it comes down, use an eraser until it has a new metal luster, and then plug it in again, the effect should be good)
I can only think of these shortcomings for a moment, please forgive me.
2 connecting cable within the warranty period, is still a new problem of
3 USB port. Take out the box, pull out the USB cable and plug it in again. If you have time to clear the st, the effect will be better
(note if it's a laptop, its USB should be connected by sheet metal wire. After it comes down, use an eraser until it has a new metal luster, and then plug it in again, the effect should be good)
I can only think of these shortcomings for a moment, please forgive me.
7. "&# 8203; How to connect the mobile phone to the computer:
1. The mobile phone needs to be turned on
2. Connect the mobile phone to the computer, slide down the top screen of the mobile phone, and check whether there is a prompt "connected as media device" or "connected for charging" in the notification bar - check "media device MTP"
note:
1. If the screen is locked when the mobile phone is connected to the computer, it is recommended to unlock the screen first
2. If there is no response after connecting, it may be e to the lack of USB driver in the computer, please download and install KIEs or s replacement assistant software in the computer
if the mobile phone is Android 4.3 or above, please download and install the kies3 version or download the PC version s replacement assistant to connect with the computer
note: select Windows version download / Mac OS version download according to the operating system of the computer& quot;
1. The mobile phone needs to be turned on
2. Connect the mobile phone to the computer, slide down the top screen of the mobile phone, and check whether there is a prompt "connected as media device" or "connected for charging" in the notification bar - check "media device MTP"
note:
1. If the screen is locked when the mobile phone is connected to the computer, it is recommended to unlock the screen first
2. If there is no response after connecting, it may be e to the lack of USB driver in the computer, please download and install KIEs or s replacement assistant software in the computer
if the mobile phone is Android 4.3 or above, please download and install the kies3 version or download the PC version s replacement assistant to connect with the computer
note: select Windows version download / Mac OS version download according to the operating system of the computer& quot;
8. " Unrecognized USB device & quot; Processing methods
1. The front USB cable is wrongly connected. When the USB cable on the motherboard and the front USB interface on the chassis are connected correspondingly, this kind of fault will occur if the positive and negative connection is reversed, which is also quite dangerous, because the negative and positive connection is likely to burn the USB device. So try to use the USB interface at the back of the chassis, and use less extension cable. It may be that there is something wrong with the fracture. Change the USB port to see.
2. The voltage of the USB interface is insufficient. When the mobile hard disk is connected to the front USB port, the system may fail to recognize the device. The reason is that the power of the mobile hard disk is relatively large, and the voltage requirement is relatively strict. The front interface may not be able to provide enough voltage. Of course, poor quality power supply may also cause this problem. The solution is not to connect the mobile hard disk to the front USB interface, replace the inferior low-power power power supply or try to use the hard disk box with external power supply, if possible
3. Compatibility between motherboard and system. Ha ha, one of the most famous failures is the compatibility between NF2 motherboard and USB. If you encounter this problem on the NF2 motherboard, you can first install the latest nforce2 special USB2.0 driver and patch, the latest motherboard patch and operating system patch, or if not, try to refresh the BIOS of the motherboard, which can generally solve the problem
4. System or BIOS problems. When USB is disabled in BIOS or operating system, USB device cannot be recognized in the system. The solution is to turn on the USB device related options. Press F2 or del to enter BIOS and select enable for USB device
5. Be careful when plugging and unplugging. Do not unplug when reading or writing, otherwise the chip may be burned. XP taskbar more than a USB device icon, open the icon will be displayed in the list of U disk device, choose to disable the device, and then unplug the device, this will be more secure
in fact, it's very easy to judge the software and hardware problems. Just try another machine or another system (drive under 98). For some small problems, you might as well format them with special software first. Also, I remind you to choose fat instead of FAT32 when formatting under windows.
1. The front USB cable is wrongly connected. When the USB cable on the motherboard and the front USB interface on the chassis are connected correspondingly, this kind of fault will occur if the positive and negative connection is reversed, which is also quite dangerous, because the negative and positive connection is likely to burn the USB device. So try to use the USB interface at the back of the chassis, and use less extension cable. It may be that there is something wrong with the fracture. Change the USB port to see.
2. The voltage of the USB interface is insufficient. When the mobile hard disk is connected to the front USB port, the system may fail to recognize the device. The reason is that the power of the mobile hard disk is relatively large, and the voltage requirement is relatively strict. The front interface may not be able to provide enough voltage. Of course, poor quality power supply may also cause this problem. The solution is not to connect the mobile hard disk to the front USB interface, replace the inferior low-power power power supply or try to use the hard disk box with external power supply, if possible
3. Compatibility between motherboard and system. Ha ha, one of the most famous failures is the compatibility between NF2 motherboard and USB. If you encounter this problem on the NF2 motherboard, you can first install the latest nforce2 special USB2.0 driver and patch, the latest motherboard patch and operating system patch, or if not, try to refresh the BIOS of the motherboard, which can generally solve the problem
4. System or BIOS problems. When USB is disabled in BIOS or operating system, USB device cannot be recognized in the system. The solution is to turn on the USB device related options. Press F2 or del to enter BIOS and select enable for USB device
5. Be careful when plugging and unplugging. Do not unplug when reading or writing, otherwise the chip may be burned. XP taskbar more than a USB device icon, open the icon will be displayed in the list of U disk device, choose to disable the device, and then unplug the device, this will be more secure
in fact, it's very easy to judge the software and hardware problems. Just try another machine or another system (drive under 98). For some small problems, you might as well format them with special software first. Also, I remind you to choose fat instead of FAT32 when formatting under windows.
9. Most of this is caused by the wrong connection.
10. Unknown_Error
Hot content