CBM2090主控芯片如何正确提取数据？
| CBM2080 ad dc 80 15 1x1 |
Layout
CBM2080 528
Mix
Input
Order 0
Assembler
Block Number
Block Size 0x20000
Bank Space 0x100
Actions
Scan
Find Bank Size
Comments
by Arvika
few first blocks was empty, need RAW scan.
| CBM2090E HF ec d7 14 76 1x1 |
Layout
CBM2090 1085_1 Xor c32e_64
Mix
Input
Order 0
Assembler
Virtual Translator
Block Size 0x100000
Image Cut 0x7e000
Comments
Serg for forum 10307
Inside i found two layouts
AU6990 1070 Xor 6771_128 Cut
CBM2090 1085_1 Xor c32e_64
May be memory chip was used in one flash drive
After it was broken, it was moved to other flash drive
From AU to CBM
| CBM2090 2c d3 94 a5 1x1 |
Layout
CBM2090 528
Mix
Input
Order 0
Assembler
Block Number
Block Size 0x40000
Bank Space 0x2c/(0x100)*16
Image Cut 0xb00000
Banks 00 / 0x000 / 0x02b
01..16 / 0x000 / 0x0fe
Actions
Scan
Comments
by Vlad forum 4673
not sure in bank space of last banks
| CBM2090 2c d3 94 a5 1x2 |
Layout
CBM2090 528
Mix
Input
Order 0/1
Join by Dump
Parts 2
Assembler
Block Number
Block Size 0x40000
Bank Space 0x14e/0xfd/0xff/0x120/(0x101)*2/(0x100)*3/0x101/0xfd/(0x101)*2
/0x121/(0x100)*18
Banks 0..31 / 0x000 / 0x0fe
Actions
Scan
Comments
Vlad for forum 4496
100% recovery
Not sure about bank space
| CBM2090 2c da 80 15 1x1 |
Layout
CBM2090 528
Mix
Input
Order 0
Assembler
Block Number
Block Size 0x20000
Bank Space 0xfa/0x1a5/0x195/0x200
Actions
Scan
Find Bank Size
Comments
by Vlad form 4786
not sure in bank spaces
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| CBM2090 89 d3 94 a5 1x2 |
Layout
CBM2090 528
Mix
Input
Order 0/1
Join by Dump
Parts 2
Assembler
Block Number
Block Size 0x40000
Bank Space 0x141/(0x101)*100
Banks 0..32 / 0x000 / 0x0fe
Actions
Scan
Comments
Serg for forum 4271
100% recovery
Not sure about bank space
| CBM2090 98 d3 84 a5 1x1 |
Layout
CBM2090 528
Mix
Assembler
Block Number
Block Size 0x40000
Bank Space 0x240/(0x200)*7
Banks
0..7 / 0x000 / 0xfe
Actions
Scan
Comments
Made by Vladus From forum case 3692
Unable to set bank space correct because there are not so many files
| CBM2090 ad d3 14 a5 1x1 |
Layout
CBM2090 528
Mix
Input
Order 0
Assembler
Block Number
Block Size 0x40000
Bank Space 0x120/(0x100)*20
Banks 0..15 / 0x000 / 0x0fe
Actions
Scan
Comments
Serg for forum 9512
Need adjust bank space for you case
Use Check Dirs and Check files to find first value
| CBM2090 ad d3 14 a5 2x1 |
Layout
CBM2090 528
Mix
Input
Order 0/1
Join by Dump
Parts 2
Assembler
Block Number
Block Size 0x40000
Bank Space 0x4b/(0x123)*100
Image Cut 0x40000
Banks 00 / 0x000 / 0x000
01 / 0x000 / 0x0fe
02 / 0x000 / 0x0fe
03 / 0x000 / 0x0fe
04 / 0x000 / 0x0fe
05 / 0x000 / 0x0fe
06 / 0x000 / 0x0fe
07 / 0x000 / 0x0fe
08 / 0x000 / 0x0fe
09 / 0x000 / 0x0fe
10 / 0x000 / 0x0fe
11 / 0x000 / 0x0fe
12 / 0x000 / 0x0fe
13 / 0x000 / 0x0fe
14 / 0x000 / 0x0fe
15 / 0x000 / 0x0fe
16 / 0x000 / 0x175
17 / 0x000 / 0x0fe
18 / 0x000 / 0x0fe
19 / 0x000 / 0x0fe
20 / 0x000 / 0x0fe
21 / 0x000 / 0x0fe
22 / 0x000 / 0x0fe
23 / 0x000 / 0x0fe
24 / 0x000 / 0x0fe
25 / 0x000 / 0x0fe
26 / 0x000 / 0x0fe
27 / 0x000 / 0x0fe
28 / 0x000 / 0x0fe
Actions
Scan
Comments
Serg for forum 6184
I dont know how to find correct bank space
| CBM2090 ad d3 14 a5 2x1 |
Layout
CBM2090 528
Mix
Input
Order 0/1
Join by Dump
Parts 2
Assembler
Block Number
Block Size 0x40000
Bank Space 0x4b/(0x123)*100
Image Cut 0x40000
Banks 00 / 0x000 / 0x000
01 / 0x000 / 0x0fe
02 / 0x000 / 0x0fe
03 / 0x000 / 0x0fe
04 / 0x000 / 0x0fe
05 / 0x000 / 0x0fe
06 / 0x000 / 0x0fe
07 / 0x000 / 0x0fe
08 / 0x000 / 0x0fe
09 / 0x000 / 0x0fe
10 / 0x000 / 0x0fe
11 / 0x000 / 0x0fe
12 / 0x000 / 0x0fe
13 / 0x000 / 0x0fe
14 / 0x000 / 0x0fe
15 / 0x000 / 0x0fe
16 / 0x000 / 0x175
17 / 0x000 / 0x0fe
18 / 0x000 / 0x0fe
19 / 0x000 / 0x0fe
20 / 0x000 / 0x0fe
21 / 0x000 / 0x0fe
22 / 0x000 / 0x0fe
23 / 0x000 / 0x0fe
24 / 0x000 / 0x0fe
25 / 0x000 / 0x0fe
26 / 0x000 / 0x0fe
27 / 0x000 / 0x0fe
28 / 0x000 / 0x0fe
Actions
Scan
Comments
Serg for forum 6184
I dont know how to find correct bank space
| CBM2090 ad da 80 1d 1x1 |
Layout
CBM2090 528
Mix
Input
Order 0
Assembler
Block Number
Block Size 0x20000
Bank Space 0x128/(0x100)*10
Banks 0..7 / 0x000 / 0x0fe
Actions
Scan
Comments
Serg for forum 9135
| CBM2090 ad da 80 15 1x1 |
Layout
CBM2090 528
Mix
Assembler
Block Number
Block Size 0x20000
Bank Space 0x800
Actions
Scan
Find Bank Size
Comments
Made by Vladus From forum case 3970
Unable to set bank space correct because there are not so many files
| CBM2090 ad dc 80 95 1x1 |
Layout
CBM2090 528
Mix
Input
Order 0
Assembler
Block Number
Block Size 0x20000
Bank Space 0x400
Banks 00 / 0x000 / 0x0fe
01 / 0x000 / 0x0fe
Actions
Scan
Find Bank Size
Comments
By Arvika
In this case there is only 3MB of data on flash
so Bank space and banks could be other
| CBM2090 ad f1 80 1d 1x1 |
Layout
CBM2090 528
Mix
Assembler
Block Number
Block Size 0x20000
Bank Space 0x82/(0x180)*3
Banks
0 / 0x000 / 0x07e
1..3 / 0x000 / 0x17e
Actions
Scan
| CBM2092 98 d3 84 a5 1x1 |
Layout
CBM2091 528
Mix
Input
Order 0
Assembler
Translator Table
Block Size 0x40000
Actions
Scan
Find Bank Tables
Find Banks Table
Comments
KostikN 22.02.2012
Perfect result
| CBM20290 ad d5 55 a5 1x2 |
Layout
CBM2090 528
Mix
Input
Order 0/1
Join by Dump
Parts 2
Assembler
Block Number
Block Size 0x40000
Bank Space 0x1bd/(0x100)*100
Banks 0..63 / 0x000 / 0x0fe
Actions
Scan
Comments
Serg for forum 6828
0x1bd at Bank Space can be other at your case
常见问题解答
CBM2090主控芯片在数据恢复中有什么特点？
CBM2090是芯邦（CBM）推出的一款U盘主控芯片，在数据恢复中常见于采用该主控的U盘设备。文章指出，CBM2090E HF版本（ID: ec d7 14 76）在恢复时需要使用特定的布局（Layout CBM2090 1085_1），并配合Xor c32e_64算法进行数据提取。该主控的固件结构较为特殊，恢复时需注意块大小（0x100000）和镜像切割偏移（0x7e000），否则可能导致数据提取不完整。
使用CBM2090主控的U盘恢复数据时，如何找到正确的布局？
根据文章内容，CBM2090主控的U盘在恢复数据时，需要通过扫描闪存ID（如ec d7 14 76）来匹配对应的布局。文章案例中，在CBM2090内部发现了两套布局：AU6990 1070（Xor 6771_128）和CBM2090 1085_1（Xor c32e_64）。建议先尝试默认的CBM2090布局，若提取的数据异常，可切换至AU6990布局重新提取，并注意调整块大小和镜像切割参数。
CBM2090主控U盘数据恢复时，为什么需要RAW扫描？
文章提到，CBM2080主控（与CBM2090同系列）的前几个块是空的，需要RAW扫描才能找到有效数据区域。对于CBM2090主控，同样存在类似情况，因为主控固件会预留部分块用于存储管理信息，直接扫描可能跳过这些块。RAW扫描可以绕过固件逻辑，直接读取闪存原始数据，从而完整提取用户文件，尤其适用于固件损坏或逻辑结构异常的情况。