main2raw and sefstool4 may not work on my computer, some files can covert to *.raw, but sefstool4 always shows a system error, or its the CID52 problem?
FAR cannot extract CID52 either...
you must use main2raw to convert fs firmware to raw format, after that you can use sefstool4 to extact the files. not sure why didn't work with you. maybe you can have a try with another pc.
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