How to Read Write Hard Drive Computer BIOS Firmware to SPI Flash Memory w/ CH341a Programmer NoMusic
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- เผยแพร่เมื่อ 7 พ.ค. 2024
- Similar to computers, tablets, and smartphones, hard disk drives require instructions describing exactly how to boot. For hard drives, this data on how to boot is stored on 8-pin Flash memory chips and is accessed using the Serial Peripheral Interface (SPI) protocol.
During the Data Recovery process, it is often wise to both inspect and make backup copies of drives' boot firmware. Once saved, hard disk firmware can be copied (programmed) to other Flash Memory Chips and can be reprogrammed when firmware data loss is suspected or confirmed.
The CH341a Mini Programmer is an inexpensive tool for reading and writing directly to Flash memory chips using both the SPI and IC2 communication protocols.
When combined with AsProgrammer software available for free on GitHub.com:
github.com/nofeletru/UsbAsp-f...
Firmware can be save to and loaded from Microsoft Windows .BIN Binary Files:
en.wikipedia.org/wiki/Binary_...
This video illustrates how to use the CH341a Mini Programmer in conjunction with the free AsProgrammer software to both read and write to hard disk drive and computer SPI Flash Memory Chips.
If you need help with a data recovery, please feel free to contact us 7 days a week by telephone and text at 1.858.692.0541, by e-mail at info@it-sd.com, or visit our website at www.it-sd.com.
DATA RECOVERY PROCEDURE:
1. Connect the CH341a Programmer to the Flash Memory Using the Appropriate Adapters
2. Connect the CH341a Programmer to a Microsoft Windows Computer USB Port
3. Download AsProgrammer from GitHub.com
4. Install & Run AsProgrammer
5. Select SPI as Desired Communication Protocol
6. Select CH341a From List of Supported Devices
7. Read Memory Chip ID (Automatically or by Manual Entry)
8. Read and/or Write Directly to Flash Memory Chips
thanks
Exellent😊
Thank you! 😀
I have read that the CH341a provides a 5v from GND that could complicate efforts when flashing and 3.3V is recommended instead. Did you encounter any issues? Thanks!
According to Electronics Repair School, if I remember from the video correctly, the CH341a automatically adjusts to 3.3V when reading from and writing to 3.3V memory chips.
th-cam.com/video/J8-Sh7DjiXw/w-d-xo.htmlsi=4U2HRExvKhRoOvZ4
I have not had any issues reading from and writing to 3.3V powered chips using an un-modded CH341a.
You do need to use a power converter to work with 1.8V chips, though.
@@it-sd So I watched the video and that was an awesome demonstration. The places I read about the 5v vs 3.3v discrepancy tested the voltage but never while it was connected to the BIOS chip. I really appreciate the link to the video. Now I have no reason to modify my CH314a.
@@it-sd Yeah I do not think I need the converter at the moment. I plan on flashing soon so your information and guidance will and has been a big help. I'll make sure to keep ya posted! Thanks again!
@@chacho1155 Outstanding! I’m glad you concur with me. I saw Sorin’s video many months ago but as I remember, he convinced me that no modifications were necessary to read 3.3V chips.