Chosen Solution

Hi! I have an iPhone 11 which previously was dropped and I had to swap the bottom board. I have transplanted Baseband CPU, EEPROM, and the WiFi IC Checked the lines around and there is all work ok no short. I have combined the two board now the problem is that there is no Modem Firmware and if I enter *#06# in the dial pad IMEI does not show up. Do I need to transfer something else as well or missed a step?

Hello Peter, there are only two solutions:

  • you did it wrong or
  • the motherboard you used was damaged. In order for the system to start access to the baseband (not to be confused with access to the IMEI radio identifier), several voltage and logical conditions must be checked and done. Check power and control lines. Alternatively, remove the baseband and ensure it has not been damaged when removing it from the source motherboard.