T30AQS-Q-A3 flash problem

I have one automotive navigation unit that uses T30AQS-Q-A3 on a nvidia board with part no 02760142. That chip uses SKhynix H26M78003BFRA as a flash storage. My problem is that this chip is erased. Now i know that it’s possible to write back the chip by using JTAG but the problem is that even if i remove the chip from a dead board i cannot identify the correct pins as there is no information about that CPU.
Could you please help me.

Do anyone knows if there is development kit/board for this module?

After removing the chip i was able to identify the JTAG and some but not all of the pins used fro USB forced recovery mode.
Do anyone have bsdl for T20/T30 chips?