SC No. Level Error Name/Error Condition/Major Cause/Solution
SC840-00 D
EEPROM access error
An error occurred during I/O processing.
• A read error occurred and 3 retries failed.
• A write error occurred.
EEPROM defective or end-of-life
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SC No. Level Error Name/Error Condition/Major Cause/Solution
SC841-00 D
EEPROM read data error
Compared the data from 3 areas of the EEPROM mirror data with the
original data and all 3 of them were different from the original data.
Data in the specific area of the EEPROM has been modified.
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SC No. Level Error Name/Error Condition/Major Cause/Solution
SC842-00 C
Nand-Flash updating verification error
During remote ROM update or ROM update, the SCS detected a write
error (verify error) regarding the data written to the Nand-Flash.
Nand-Flash damaged
Turn the main power off/on.
SC No. Level Error Name/Error Condition/Major Cause/Solution
SC842-01 B
Nand-Flash bad block number exceeding the threshold
When the status of the Nand-Flash was checked at power-on or when
returning from energy saver mode, the number of bad blocks exceeded
the threshold.
Nand-Flash bad block number exceeding the threshold
Replace the controller board.
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