A new TN55ND2 board was added to the OSN8800 device, and it was found that the board could not go online. Which of the following are impossibility reasons?

A new TN55ND2 board was added to the OSN8800 device, and it was found that the board could not go online. Which of the following are impossibility reasons?
A . The main controller has SWDL_AUTOMATCH_INH alarm
B. The main controller has SWDL_PKG_ NOBDSOFT alarm
C. The main controller has SWDL_CHGMNG_NOMATCH alarm
D. The main controller has SWDL_BD_WEAKMATCH alarm

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Answer: D