Hi Everyone , i need some help to jtag a new firmware in my thomson tg582n .
the cpu of this modem is the Broadcom 63281KFBG
and the flash memory is : cFeon EN25Q128-104FIP (128Mb) 16MB SPI Serial Flash
I have a blackcat jtag device 1.08 witch can load 4 firmwares to start jtaging , the firmware for this specific flash is the SPI .
Blackcat can detect the chip but does not allow firmware upload .
The only way blackcat can detect the chip is turning the modem on , and make the detection .
Flashchip on tg582n
Flshchip with jtag socket on top and blackcatusb connected :
Flashcat results :
Note : IF you are going to flash this model of router then keep one thing in mind :
--Don't power up the router util you flash , because if you power up the router then the flash will be write protected .
- Get an extra 3,3v power supply to power up the memory in parallel with your jtag power pins cable .
Thanks