求助柯美C284彩机报C4801柯美C284彩机由于原主板坏了无法备份引擎数据更换主板上机报C4801，大神们有什么办法解决？ 苏州
Code C4801Description
Main unit board failureMFP detects simultaneous replacement of multiple boards.Remedy
1 Reinstall the old PRCB. 2 Back up data.1. Call the Service Mode to the screen. 2. Call the Enhanced Security to the screen. 3. Touch [Engine Data Backup].
2. Touch [Engine Data Save mode], and press the Start key. 3. Select [Yes], and press the Start key again. 4. Check that the result “OK” appears.
3 Replace PRCB Turn OFF the main power switch and replace the current PRCB with a new one. (When using a PRCB of another machine in service, be sure to use a PRCB installed in the same model.)
4 Restore back up data. 1. Turn ON the main power switch. 2. Check that the trouble code “C4802” appears and then display service mode. 3. Call the Enhanced Security to the screen. 4. Touch [Engine Data Backup]. 5. Touch [Engine Data Load mode], and press the Start key. 6. Select [Yes], and press the Start key again. 7. Check that the result “OK” appears. 8. Turn OFF the main power switch and turn it ON again more than 10 seconds after.
5 Update the PRCB firmware.
6 If the above actions do not solve the problem, contact KMBT.

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