Problem:
vxdiag vcx se for bmw can’t be tested with bmw ista+ 4.28 version software, it prompts that the firmware needs to be updated shown as below.
vxdiagshop.com solution:
Free download BMW ICOM 4.28 msi. firmware update patch for testing again.
https://mega.nz/file/7UoExBJY#-wnTS2D9HMacIdvkjRyCXFTnWyp2tTzeS-uFY9dm2q0
Finally, tested working fine!
Enjoy!