I REPLACED WITH SC7808
BUT IF YOU KNOW AU6690,AU6987,AU6990AN.FC7808 THIS ALL MODEL IS 30BIT ECC
CONTROLLER USE SAME BINERY FILE .AFTER REPLACE CHIP .FLASH NORMAL WORK
I UPLOAD SOME SAME ID
ChipModel(Chip=0xCA01, Rev=0x00, Gen= 5, Name=('6987', '6990')),
ChipModel(Chip=0xCA02, Rev=0x00, Gen= 5, Name=('6987', '6990')),
ChipModel(Chip=0xCA03, Rev=0x00, Gen= 5, Name=('6987', '6990')),
ChipModel(Chip=0xCA03, Rev=0x10, Gen= 5, Name=('6987', '6990')),
ChipModel(Chip=0xCA03, Rev=0x20, Gen= 5, Name=('6987', '6990')),
ChipModel(Chip=0xCA03, Rev=0x40, Gen= 5, Name=('6987', '6990')),
ChipModel(Chip=0xCA03, Rev=0xC0, Gen= 5, Name=('6987', '6990')),
ChipModel(Chip=0xCA04, Rev=0xC0, Gen= 5, Name=('6987', '6990')),
ChipModel(Chip=0xCA05, Rev=0xC0, Gen= 5, Name=('6987', '6990')),
ChipModel(Chip=0xCA06, Rev=0x00, Gen= 5, Name=('6987', '6990')),
ChipModel(Chip=0xCA07, Rev=0x00, Gen= 5, Name=('6987', '6990')),
ChipModel(Chip=0xCA07, Rev=0x40, Gen= 5, Name=('6987', '6990')),
ChipModel(Chip=0xCA09, Rev=0x00, Gen= 5, Name=('6987AN', '6991')),
ChipModel(Chip=0xCA09, Rev=0x10, Gen= 5, Name=('6987AN', '6991')),
ChipModel(Chip=0xCA09, Rev=0x20, Gen= 5, Name=('6987AN', '6991')),
ChipModel(Chip=0xCA09, Rev=0x40, Gen= 5, Name=('6987AN', '6991')),
ChipModel(Chip=0xCA09, Rev=0xC0, Gen= 5, Name=('6987AN', '6991')),

AN VERSION=NO NEED 12MH CRYSTAL

MY FLASH INFO

Controller Vendor: Alcor Micro
Controller Part-Number: SC708(FC8708)/AU6987 [CA03] - F/W 3604
Flash ID code: ECD794725442 - Samsung K9LCG08U1M - 4CE/Dual Channel [MLC-8K] -> Total Capacity = 32GB

AND IF YOU LOVE ALCOR .READ MY 12 YEARS OLD ARCHIVE
https://flashboot.ru/flash_recovery/2013/07/12/change-au6690-by-au6986t.html

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We can't Fabian because the nands contain encrypted stored data made by the matching pincompatible connected controllers. The whole story is that without the right controller we never are able to read and so decrypt the stored files from any nand memory chip.
We can copy every nand but that file will be encrypted and so completely unreadable!

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And you are right about the green AU698 stick not being included in the nand reader kit Raleigh. If I remember it correctly has to be bought separately. Sadly the link to the kit you mentioned no longer works so I can't confirm if it was the right nand reader board. I do hope you in the meantime were able to get all the right parts together!

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Sorry for my late reply and thanks Davod for sharing this helpful detailed information!
I hardly ever look up on my older already published articles and by pure luck saw your post today.
At best I personally would like to find as many different nand memory stick controllers to add to this Zirui shop tool I mentioned in the article but sadly many often are simply unavailable online.

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Good question Joan. Sadly I have no immediate answer on that. I know that memory sticks can get very annoying but I have no info on the controller you mentioned. I personally would have tried my Startech USB1to2 copier but not certain if that would have helped in this case. I read that it can be caused by a virus on your computer so maybe that is something you can check?

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Sorry Raleigh for my late reply. I hardly ever look back at my already older published articles. But by just luck noticed your question.
You are right that the correct matching controller without any nand was ordered to decrypt the programmed nand from the broken defect usb stick with defect controller. To in fact replace the defect controller by connecting a good identical controller. About the links to buy those parts I do not have any uptodate info on those. And that previous seller Zirui shop after last few years already may no longer have these items in store either. So I do hope you are still able to find these online.

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I'm having trouble specifically understanding what you did before you bought the black NAND test board extractor piece.

Can you explain the following paragraph?

> To continue the task in recovering the saved nand data I therefore ordered another memory module without nand but including a special nand reader with a 48 pins nand test socket. That memory stick contains an in function identical controller chip being the AU6987 from Alcor. As could be read in instruction guides and lists from those sites. The AU6987 stick is inserted in the special USB connector on the nand tester/reader and with two 24 pins flat cable connectors connected to the nand tester socket. In which we now will put our to be correct decoded 4GB nand.

It sounds like you're saying you basically bought another AU698 controller board, that didn't have the flash on it, and then used that in conjunction with the black NAND board to recover the contents of your original flash.

Is that correct?

I found this link: https://www.aliexpress.com/item/2251832613901414.html

Which looks like is the same kit you have, but it doesn't seem to come with the green AU698 board.

If you could clarify what exactly you purchased (ideally with a link or the exact product name), that would be very helpful. Thank you again!

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