Summary:
Due to incorrect uploading of image files, the ID of an SSN4SL64 board of Ver.C fails to be recognized after a power-on, resulting in a board failure to start up. SSN4SL64 boards of Ver.C must be rectified.
[Problem Description]
Trigger conditions:
Problematic SSN4SL64 boards of Ver.C were manufactured between May 20 and July 24 in 2013. For specific manufacture date of an SSN4SL64 board, see the bar code of the board, which can be looked up in the Board Delivery Details attachment.
Symptom:
The ID of an SS4NSL64 board of Ver.C fails to be recognized after a power-on. The board fails to start up.
Identification method:
To check whether an SSN4SL64 board is of Ver.C, query board manufacture information on the NMS or view the PCB silkscreen. Then check if the bar code of the board is in the Board Delivery Details attachment. If yes, the SSN4SL64(P1L1-2D2,LC) Board is of Ver.C.
[Root Cause]
Due to incorrect uploading of image files in software of the SSN4SL64 board of Ver.C, the file system may be corrupted after the board is powered on. Board read/write operations fail and the board fails to start up.
[Impact and Risk]
The following two situations may occur:
- The board fails to start up after being deployed.
- The board can start up, but is likely to fail after a cold reset or a version upgrade/downgrade is performed.
[Measures and Solutions]
Recovery measures:
None.
Workarounds:
None.
Preventive measures:
Solution 1
Format the flash memory through the COM port. Upload correct board software using FTP. For details, see the SSN4SL64 Board Upgrade Guide.
Version support for this solution is listed in the following table.
Note: R10C03SPC202 and later R10C03 versions, as well as R012 versions are subject to the Huawei BlueSky regulations and their COM ports are unavailable.
Solution 2
Replace the problematic SSN4SL64 Board (Ver.C manufactured between May 20 and July 24 in 2013) with a new board, For more huawei transmission equipment, please get through at www.thunder-link.com.
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