Is the Hardware Schematic the PDF you sent me in another thread. I read the pdf but I will be totally honest I don’t understand the circuit diagrams. I was assuming the bootpin would be very easy to identify to put the Modem in Bootloader mode.
@jyijyi Thanks for your help. I am still struggling to identify the pin 12 and the reseller who sold me the gsm said I should do so. I believe the modem has been refurbished or something.