Questions tagged [flash]
The flash tag has no summary.
49 questions
0
votes
0
answers
82
views
Which BHC error correction code produces non-zero code for all-zero data input
I am reversing a raw flash image (Micron MT29F16G08ABACA), and I am currently stuck trying to find the correct ECC algorithm.
What I know thus far:
1 page = 4096 bytes data + 224 bytes OOB (out of ...
- 33
1
vote
0
answers
117
views
Firmware analysis output
I have a ZTE router "ZTE_ZXHN_H168N" and want to learn more about firmware reverse engineering. I managed to do the following so far:
Dump the firmware from the SPI flash.
Running strings ...
- 11
0
votes
0
answers
55
views
Going from NAND dump to firmware update package
I.... Have no idea what I'm doing.
So, I did a full NAND dump of an Actions ATJ2257 based MP4 player (url: https://archive.org/details/eclipse-t-2810-c.-7z) and I want to recreate the ".fw" ...
- 179
0
votes
1
answer
106
views
Buspirate_spi and flashrom opensource software
I have a question about buspirate_spi programmer and flashrom. I have a new Flash rom Boye BY25Q128AS similar to the winbond W25Q128.V in the flashrom list. How can I dump the data from this specific ...
1
vote
0
answers
90
views
Reading/writing flash ROM connected to OMAP L138 without JTAG
I have a product that uses an OMAP L138 with a flash rom. There are a couple different models of this product available, but they all share the same hardware with the only difference being the ...
- 141
3
votes
0
answers
59
views
How to patch bootstrap in NAND flash?
I read the layout or my NAND flash and saw that in the beginning of flash there is a bootstrap the the CPU load. That flash has ECC
I read/write that flash.
How can I analyze the bootstrap and change ...
- 291
0
votes
1
answer
200
views
Contents of SPI NOR Flash appears scrambled
I'm working on reverse engineering a small household weather station, and I have successfully managed to extract the contents of a SPI NOR flash chip (using a modified version of this Python library ...
- 103
2
votes
0
answers
186
views
Edit Squashfs filesystem in flash memory
I have read Flash memory and analyze with binwalk and find out Squashfs that I can extract with dd and open with unsquashfs .
When I open this FS I want to add some file into this FS and edit some ...
1
vote
0
answers
700
views
How can I flash unpacked firmware into Alcatel MiFi?
I bought Alcatel MW40V from Vodafone Shop some weeks ago and I can't access USSD Codes within Web UI.
Bus 001 Device 008: ID 1bbb:0195 T & A Mobile Phones Alcatel OneTouch L850V / Telekom ...
- 111
4
votes
0
answers
954
views
How to extract sound file from a small 1MB binary
I have a bluetooth speaker which announces interface events like "connected", "powering off". I want to silence these announcements. The way I thought of doing this is to get at ...
- 143
1
vote
1
answer
175
views
What could a firmware image be, if not embedded linux?
I decided to play around with an old baby monitor, purely to learn something about how such things (I.E. embedded devices) work. I successfully extracted the flash memory, and I was expecting this to ...
- 113
1
vote
0
answers
380
views
Trouble backing up rom on locked proprietary mediatek device - mt8163 chipset
I have a proprietary tablet with mediatek chipset MT8163v, and getting the factory ROM and/or scatter file is out of the question. My goal is to flash with TWRP.
The device has a custom android repo ...
3
votes
1
answer
276
views
Dump Headunit Software
I am a computer engineering senior and have a few quick questions i couldn't find any hits about online. I know just enough to get myself into trouble.
Note: I have no specialized tools just a DMM and ...
- 31
0
votes
1
answer
356
views
Detecting and reading embedded filesystems on desktop Linux
I have some data from a NAND chip, dumped using the built in nanddump utility on the embedded device.
This is the device information: https://openwrt.org/toh/bt/homehub_v5a The NAND chip is 128MiB ...
- 111
3
votes
2
answers
124
views
Reverse Engineering an ERP interface written in Flash
My college has its ERP platform in a Flash interface, accessible only via Internet Explorer. I am looking into ways I can interface with it via things like ruffle. So I can write my own frontend using ...
- 131