Cause analysis
Web browsing upgrades are the mercury for most routers and the process of upgrading:
1, download the corresponding model (hardware, software version to be consistent) upgrade procedures;
2, the download of the upgrade package for decompression;
3, into the management interface for the upgrade operation.
During the upgrade process, there may be a possible escalation failure, and follow the upgraded error code:
Summary of the solution method
Error code 18000
Prompt for error code 18000 "Upgrade is unsuccessful, please check that the file you uploaded is correct". The following figure:
Possible causes of the problem and how to resolve it:
1 , the upgrade file does not match the router using the wrong upgrade program . Upgrades can only be done using the same version of the upgrade software for the same model. Software and hardware versions between different models are not universal.
2 , the software version cannot be degraded back to a lower version . When you download the upgrade package, if the software version indicates that the upgrade cannot be upgraded to this version, it cannot be upgraded back to the previous version of the software . This error code is prompted when you use a lower version of the software to enter the upgrade, and it is recommended that you use the updated software for the upgrade operation.
Error code 18001
Prompt error code 18001 "Upgrade not successful, upgrade file length error, please check file and try again". The following figure:
The
cause of this problem is the use of the wrong
bin
file for upgrade . For example, a router is backed up before the upgrade (the backup file suffix is. bin, the same as the suffix name of the upgraded file), and if you browse to the backup file when you upgrade, it will cause the upgrade to fail and recommend that you upgrade with the correct files.
Error code 18003
Prompt for error code 18003 "Upgrade is unsuccessful, please check that the upgrade file matches the product type". The following figure:
This problem occurs because the wrong upgrade is used and the upgrade file does not match the router . Upgrades can only be done using the same version of the upgrade software for the same model. Software and hardware versions between different models are not universal.
Solution : Confirm the use of the device model and version, the router management interface of the system Tools > software Upgrade page, you can view the current hardware version , and then download the corresponding upgrade file.
Error code 18004
Prompt error code 18004 "Upgrade file checksum failed, verify that the file has not been modified." The following figure:
The possible cause of this problem is that the bin file is corrupted after downloading, and it is recommended that you remove the downloaded upgrade package and the unpacked folder, and download the upgrade software again to upgrade the operation.
Error code 18005
Prompt for error code 18005 "cannot upgrade to current software version" when upgrading. The following figure:
This problem occurs because some routers cannot be demoted back to the lower version under the current software version, and it is recommended that you use the updated software for the upgrade operation.
Note : When you cannot upgrade back to the old version, the general upgrade software notes will be noted, the following figure: