Asking experts~Lenovo S9 cannot copy phone book and text messages when connected to computer

Possible situations are:

1. Caused by hardware reasons

Poor cooling The monitor, power supply and CPU generate a lot of heat during work, so it is very important to maintain good ventilation. If the monitor overheats, it will cause color and image distortion or even shorten the monitor. life. Working for too long can also lead to poor heat dissipation of the power supply or monitor, causing the computer to crash. CPU heat dissipation is an important issue related to the stability of computer operation, and it is also the "hardest hit area" for heat dissipation failures.

Improper movement. Excessive vibration during the movement of the computer will often cause the internal components of the machine to loosen, resulting in poor contact and causing the computer to crash. Therefore, violent vibrations should be avoided when moving the computer.

Dust Killer Too much dust in the machine can also cause a crash. If the magnetic head of the floppy drive or the laser head of the optical drive is contaminated with too much dust, it will cause read and write errors, and in severe cases, the computer will crash.

Device mismatch: If the main frequency of the motherboard does not match the main frequency of the CPU, or the FSB is set too high when overclocking the old motherboard, the stability of the operation may not be guaranteed, resulting in frequent crashes.

Incompatible software and hardware. 3D software and some special software may not be started or even installed normally on some computers. There may be software and hardware compatibility issues.

Memory module failure is mainly caused by loose memory modules, weak soldering or the quality of the memory chip itself. The memory module contact failure should be eliminated according to the specific situation. If there is a problem with the quality of the memory module, the memory needs to be replaced to solve the problem.

Hard disk failure is mainly due to the aging of the hard disk or bad sectors and bad sectors caused by improper use. In this way, the machine will easily crash when running. You can use special tools and software to troubleshoot. If the damage is serious, the hard drive can only be replaced. In addition, for motherboards that do not support UDMA 66/100, attention should be paid to the setting of the hard disk operating mode in CMOS.

CPU overclocking Overclocking increases the working frequency of the CPU, and at the same time, its performance may become unstable. The reason is that the speed at which the CPU accesses data in the memory is inherently faster than the speed at which the memory and the hard disk exchange data. Overclocking makes this contradiction more prominent and aggravates the situation where the required data cannot be found in the memory or virtual memory. This will cause an "exception error". The solution is of course relatively simple, which is to return the CPU to its normal frequency.

Memory module failure is mainly caused by loose memory modules, weak soldering or the quality of the memory chip itself. The memory module contact failure should be eliminated according to the specific situation. If there is a problem with the quality of the memory module, the memory needs to be replaced to solve the problem.

Hard disk failure is mainly due to the aging of the hard disk or bad sectors and bad sectors caused by improper use. In this way, the machine will easily crash when running. You can use special tools and software to troubleshoot. If the damage is serious, the hard drive can only be replaced. In addition, for motherboards that do not support UDMA 66/100, attention should be paid to the setting of the hard disk operating mode in CMOS.

CPU overclocking Overclocking increases the working frequency of the CPU, and at the same time, its performance may become unstable. The reason is that the speed at which the CPU accesses data in the memory is inherently faster than the speed at which the memory and the hard disk exchange data. Overclocking makes this contradiction more prominent and aggravates the situation where the required data cannot be found in the memory or virtual memory. This will cause an "exception error". The solution is of course relatively simple, which is to return the CPU to its normal frequency.

Hardware resource conflicts are caused by conflicting settings of the sound card or display card, causing abnormal errors. In addition, if there is a conflict between interrupts, DMA or ports of other devices, a few drivers may cause exceptions and even crash. The solution is to start in "Safe Mode" and make appropriate adjustments in "Control Panel" → "System" → "Device Management". For situations where exception errors occur in the driver, the registry can be modified.

Select "Run", type "REGEDIT", enter the registry editor, use the "Find" function under the menu to find and delete all "primary keys" and "key values" related to the driver prefix string, and restart.

Insufficient memory capacity. The larger the memory capacity, the better. It should not be less than 0.5 to 1 of the hard disk capacity. If this problem occurs, you should replace it with a memory stick with the largest capacity possible.

Inferior parts. A few unscrupulous merchants use low-quality boards and memory when assembling compatible machines for customers. Some even sell counterfeit motherboards and Remarked CPUs and memories. When such machines are running, It is very unstable and crashes are inevitable. Therefore, users should be vigilant when purchasing a computer, and can use some newer tools and software to test the computer, test the computer continuously for a long time (such as 72 hours), and strive for as long a warranty period as possible.

2. Crash caused by software

Virus infection Viruses can drastically reduce computer efficiency and cause frequent crashes. At this time, we need to use anti-virus software such as KV300, Kingsoft Antivirus, Rising, etc. to conduct comprehensive virus checking and anti-virus, and update the anti-virus software regularly.

Improper CMOS settings This fault phenomenon is very common. For example, improper hard disk parameter settings, mode settings, and memory parameter settings cause the computer to fail to start. If the memory without ECC function is set to have ECC function, it will cause a crash due to memory error.

Accidental deletion of system files Since Windows 9x requires Command.com, Io.sys, Msdos.sys and other files to start, if these files are damaged or accidentally deleted, even if various hardware settings are set in CMOS Being right doesn't help either. Solution: Use the startup disk of the same version of the operating system to start the computer, then type "SYS C:" and re-transfer the system files.

The initialization file is damaged. Since Windows 9x needs to read System.ini, Win.ini and registry files to start, if Config.sys and Autoexec.bat files exist, these two files will also be read. . As long as there are error messages in these files, a crash may occur, especially the four files System.ini, Win.ini, User.dat, and System.dat are particularly important.

Poor heat dissipation The monitor, power supply and CPU generate a lot of heat during work, so it is very important to maintain good ventilation. If the monitor overheats, it will cause color and image distortion and even shorten the life of the monitor. Working for too long can also lead to poor heat dissipation of the power supply or monitor, causing the computer to crash. CPU heat dissipation is an important issue related to the stability of computer operation, and it is also the "hardest hit area" for heat dissipation failures.

Improper movement. Excessive vibration during the movement of the computer will often loosen the internal components of the machine, resulting in poor contact and causing the computer to crash. Therefore, violent vibrations should be avoided when moving the computer.

Dust Killer Too much dust in the machine can also cause a crash. If the magnetic head of the floppy drive or the laser head of the optical drive is contaminated with too much dust, it will cause read and write errors, and in severe cases, the computer will crash.

Device mismatch: If the main frequency of the motherboard does not match the main frequency of the CPU, or the FSB is set too high when overclocking the old motherboard, the stability of the operation may not be guaranteed, resulting in frequent crashes.

Incompatible software and hardware. 3D software and some special software may not be started or even installed normally on some computers. There may be software and hardware compatibility issues.

Memory module failure is mainly caused by loose memory modules, weak soldering or the quality of the memory chip itself. The memory module contact failure should be eliminated according to the specific situation. If there is a problem with the quality of the memory module, the memory needs to be replaced to solve the problem.

Hard disk failure is mainly due to the aging of the hard disk or bad sectors and bad sectors caused by improper use. In this way, the machine will easily crash when running. You can use special tools and software to troubleshoot. If the damage is serious, the hard drive can only be replaced.

In addition, for motherboards that do not support UDMA 66/100, attention should be paid to the setting of the hard disk operating mode in CMOS.

CPU overclocking Overclocking increases the working frequency of the CPU, and at the same time, its performance may become unstable. The reason is that the speed at which the CPU accesses data in the memory is inherently faster than the speed at which the memory and the hard disk exchange data. Overclocking makes this contradiction more prominent and aggravates the situation where the required data cannot be found in the memory or virtual memory. This will cause an "exception error". The solution is of course relatively simple, which is to return the CPU to its normal frequency.

Memory module failure is mainly caused by loose memory modules, weak soldering or the quality of the memory chip itself. The memory module contact failure should be eliminated according to the specific situation. If there is a problem with the quality of the memory module, the memory needs to be replaced to solve the problem.

Hard disk failure is mainly due to the aging of the hard disk or bad sectors and bad sectors caused by improper use. In this way, the machine will easily crash when running. You can use special tools and software to troubleshoot. If the damage is serious, the hard drive can only be replaced. In addition, for motherboards that do not support UDMA 66/100, attention should be paid to the setting of the hard disk operating mode in CMOS.

CPU overclocking Overclocking increases the working frequency of the CPU, and at the same time, its performance may become unstable. The reason is that the speed at which the CPU accesses data in the memory is inherently faster than the speed at which the memory and the hard disk exchange data. Overclocking makes this contradiction more prominent and aggravates the situation where the required data cannot be found in the memory or virtual memory. This will cause an "exception error". The solution is of course relatively simple, which is to return the CPU to its normal frequency.

Hardware resource conflicts are caused by conflicting settings of the sound card or display card, causing abnormal errors. In addition, if there is a conflict between interrupts, DMA or ports of other devices, a few drivers may cause exceptions and even crash. The solution is to start in "Safe Mode" and make appropriate adjustments in "Control Panel" → "System" → "Device Management". For situations where exception errors occur in the driver, the registry can be modified. Select "Run", type "REGEDIT", enter the registry editor, use the "Find" function under the menu to find and delete all "primary keys" and "key values" related to the driver prefix string, and restart.

Insufficient memory capacity. The larger the memory capacity, the better. It should not be less than 0.5 to 1 of the hard disk capacity. If this problem occurs, you should replace it with a memory stick with the largest capacity possible.

Inferior parts. A few unscrupulous merchants use low-quality boards and memory when assembling compatible machines for customers. Some even sell counterfeit motherboards and Remarked CPUs and memories. When such machines are running, It is very unstable and crashes are inevitable. Therefore, users should be vigilant when purchasing a computer, and can use some newer tools and software to test the computer, test the computer continuously for a long time (such as 72 hours), and strive for as long a warranty period as possible.