iPhone 6S – Error 4013, baseband / Error 4013, modem

The device came with a dump of the central processor (CPU), it was decided to transfer the CPU, modem, nand, eeprom to another board, since there were also other problems before the dump. After changing everything, I got error 4013, it turned out that the modem died. * Correction: at the end of the video I said that there would be an error 53, but I was mistaken, since we get error 53 when the central processing unit (CPU) and the modem are different, and when the CPU is native and the modem is different, we get error -1 with code 27 in the log. I received error 53 when I transferred only the CPU without other components to another locked board.