Flash Extractor
© Soft-Center
About     Shop     Downloads     Manual     Library     Forum     Services     Contacts
New NAND need support   Search  Register  Log in
23.09.2023 - tech support stopped
Reply to topic
Author Message
wulagrass



Joined: 17 Jun 2015
Posts: 44


PostPosted: Mon Jul 11, 2022 8:43    Post subject: New NAND need support
Reply with quote

The latest version of NAND READER cannot read this NAND.

We have used the power board and it does not recognize the NAND ID in the NAND READER.

All information is in the attached image file

Downlaod NAND PDF:https://pan.baidu.com/s/1nc3i58sIbPsryoxM82s3PA?pwd=dpl7
Pass:dpl7
a62b248e76278629a04e25cb1101f1a.png
1.jpg
jeremyb



Joined: 09 Dec 2008
Posts: 1949
Location: RecoverMyFlashDrive.com Bridgeport, CT, USA

PostPosted: Mon Jul 11, 2022 18:14    Post subject:
Reply with quote

How did you get that datasheet?? Thank you very very much.. I've been seeing this on MicroSD cards for a while.

The problem is the VccQ Operating voltage is 1.2v, NR's logic shifters can only read down to 1.8v.

I developed a special adapter card to read these chips down to 0.7v. Unfortunately due to the semiconductor shortage these chips are no longer available.

I can read the chip if its critical.
Capture.JPG
Сергей



Joined: 26 Aug 2005
Posts: 20280

Flash-Extractor developer

PostPosted: Mon Jul 11, 2022 21:08    Post subject:
Reply with quote

Thanks for datasheet!

VCCQ and VCC voltages do not overlap
NR have only 1 voltage
So, we can not read it

Need use custom socket with 2 voltages

Also i read in ONFI that if chip use 1.2v, then it use NV_DDR mode
In wich NAND_Reader can not use Read Retry commands
wulagrass



Joined: 17 Jun 2015
Posts: 44


PostPosted: Thu Jul 14, 2022 9:48    Post subject:
Reply with quote

OK,Thank you.

That is, we now only need to supply the correct voltage to the NAND to enable the NR to read the chip ID and data correctly.

This is relatively easy to do, so I'll try it first.
jeremyb



Joined: 09 Dec 2008
Posts: 1949
Location: RecoverMyFlashDrive.com Bridgeport, CT, USA

PostPosted: Thu Jul 14, 2022 20:02    Post subject:
Reply with quote

wulagrass wrote:
OK,Thank you.

That is, we now only need to supply the correct voltage to the NAND to enable the NR to read the chip ID and data correctly.

This is relatively easy to do, so I'll try it first.


It's easy, but not so easy.
NR's logic is 3.3v, NAND is 1.2v
Without level shifters NR won't recognize the signals.

It's not impossible to read but you'll either need to design a new adapter or modify the existing voltage adapter in a way that Vcc and VccQ are not hardwired together. (cut and green wire traces)

Сергей wrote:
Also i read in ONFI that if chip use 1.2v, then it use NV_DDR mode
In wich NAND_Reader can not use Read Retry commands

I'm guessing you can still read the chip... I think this case is similar which didn't require NV_DDR:
http://flash-extractor.com/library/Monolith/Micro%20SD/Part%203/Monolith%20Micro%20SD_48__2c_2c_d3_1c__1x1
Сергей



Joined: 26 Aug 2005
Posts: 20280

Flash-Extractor developer

PostPosted: Mon Jul 18, 2022 17:04    Post subject:
Reply with quote

jeremyb wrote:
I'm guessing you can still read the chip

But ECC map will not be 100% green
jeremyb



Joined: 09 Dec 2008
Posts: 1949
Location: RecoverMyFlashDrive.com Bridgeport, CT, USA

PostPosted: Mon Jul 25, 2022 20:23    Post subject:
Reply with quote

Just throwing it out there because 2c d3 89 32 is a similar ID...
I got another case (UFD FC controller this time NOT MicroSD) with 2c 2c d3 1c c6 NAND (technically its 2c d3 1c 6c) but RE is very slightly out of sync with DATA on the first ID byte (DQS is in sync), maybe because it's DDR on bootup?

Same story, its readable but only at 1.5v

ONFI
Header 4f 4e 46 49 
 
Manufacturer: MICRON
Name: MT29F1T08GBLBE3W
 
Page: 18592
 
Block: 0x1200
Blocks: 0x7b0
LUNs: 1
 
Col: 2
Row: 3
 
Bits per cell: 4
Display posts from previous:   
Reply to topic All times are GMT + 4 Hours
Page 1 of 1

 

Last added
AU6989NHL-2   98 d7 98 b2   1x1 SM3281L-AB   45 3c 98 b3   1x1   v5 Monolith Micro SD_76   98 3c 99 a3   1x4 SM3265P-AC   45 3e 98 03   1x1 SM3281N-AB   45 48 9a b3   2x2 Monolith Micro SD_75   32 2c c3 08   1x1 Monolith Micro SD_74   45 3e 98 b3   1x4   Ref AU6989SNHL-2   45 de 98 92   1x1 SM3261L-AB   45 de 98 92   1x1 SM2232T AC   89 d7 94 3e   4x2
News
01.02.2024 Save FE key
23.09.2022 The End
11.11.2021 Legs for NR
16.08.2021 Sector Number Slow
15.07.2021 New drivers
Other products
© Soft-Center ltd.