[Need Help] Flashcat USB and MSI-Z77A-GD55

[h4ckm1n]

Hello before starting i'm a totaly noob to flashcat usb. after a bad bios update i try to recover my bios with flashcat for my MI-Z77A-GD55

i use this shema to connect to motherboard


but flashcat not connect to software ... blue led off, if i disconect VCC and GND flashcat connect to software

please help me, i realy need to recover the bios of this motherboard

 

[h4ckm1n]

If i put the FCUSB to 5v it connect to the software but can't detect chips

FlashcatUSB Script Engine build: 306
Welcome to the FlashcatUSB interfacing software, build: 603
LibUsbDotNet version: 2.2.8.104
Running on: Microsoft Windows 10 Home (64 bit)
Serial NOR memory database loaded: 415 devices supported
Serial NAND database loaded: 53 devices supported
Parallel NOR memory database loaded: 337 devices supported
Parallel NAND memory database loaded: 197 devices supported
OTP/UV EPROM memory database loaded: 16 devices supported
Connected to FlashcatUSB Classic, firmware version: 4.50
Firmware features supported: SPI, I2C, EXTIO
Attempting to detect SPI device (auto-detect mode)
Unable to detect compatible SPI device
Unable to detect to SPI NOR Flash device
Disconnected from FlashcatUSB Classic device
Connected to FlashcatUSB Classic, firmware version: 4.50
Firmware features supported: SPI, I2C, EXTIO
Attempting to detect SPI NAND device
Unable to detect SPI NAND Flash device

I've connected the power supply to the motherboard but change nothing

 

[h4ckm1n]

i'am a finaly abble to detect the chips by disconnecting VCC le the FCUSB connect to software and reconect VCC using 5V, but i have verification error on the chips

Connected to FlashcatUSB Classic, firmware version: 4.50
Firmware features supported: SPI, I2C, EXTIO
Attempting to detect SPI device (auto-detect mode)
Successfully opened device in SPI mode
Connected to SPI Flash (RDID:0xEF4017 REMS:0xEF01)
Flash detected: Winbond W25Q64 (8,388,608 bytes)
Page erase size: 65,536 bytes
Detected SPI Flash on high-speed SPI port
Setting SPI clock to: 8 Mhz
Opened file for writing: E7751IMS.1B0.patched, (size: 8,388,608 bytes)
Target Flash address: 0x00000000, bytes to write: 8,388,608 bytes
Write operation complete, 8,388,608 bytes written
8,388,608 bytes written in 39.157 seconds, 214,230 Bytes/s

 

[h4ckm1n]

I unchecled veryfy programing... I need to go to work, let see if it has worked when I come back... Finger crossed

 

[ricktendo]

What version PCB is your Flashcat?

 

[h4ckm1n]

Okey now computer boot but no screen, hard drive are powered and computer stay on. (before it was on reboot loop).

But had lot of verification error when writing on the chip.

My FCUSB is 2.3 and I use the firmware for this version

 

[h4ckm1n]

Yeahhhhhhh !!!!! computer is alive !!!!

For me the trick was to :
use 5v
connect all wire exept VCC, connect flashcatusb to the pc and launch Flashcatusb software then reconnect VCC
Then use SPI QUAD FLASH
Flash > No verification error !

Done
hope this may help someone