I already did that without any success .
!st thing i tested was ejtag because there was the processor in the middle for communication between firmware and blackcat , but i got no results .
So i try SPI instead and i retrieve some data , the curious thing was that i received multiple ids from the chip , and that made me wonder .
Anyway , i am trying other options here to see if it works .
i injected an additional 3,3v in the serial port .
This is when i got that ID from blackcat .
But SPI mode is when you connect directly to the flash chip , so those reading are mostly wrong .
I will do a different test here when i get some material i ordered .
Different test but same result .
Pinout of the jtag is correct , SPI gives me multiples IDS when i restart the device (modem) , until the device finishes loading the internal firmware i recieve at least 4 IDS .
jtag option does not establish a communication with the CPU !!!!
Is blackcat able to communicate with BCM6358 CPU ?