There are 2 methods Handset should be in DFU mode
1=Device Manager on your Windows machine.
Look for 'Universal Serial Bus (USB) Controller', you will find 'Apple Mobile Device USB Driver' as a subitem there.
Right Click and choose 'Properties', navigate to 'Details' tab and select Device Instance Path from the dropdown list box. At the end of this information string you will find the bootrom version, e.g. (iBoot-359.3.2)
alternatively
2=you can download USB VEIW (http://www.ftdichip.com/Resources/Utilities/usbview.zip)
RUN it scrol down to it should look like this if the boot is 359.3.2 you can leave it alone as it has no solution yet except the case you have already saved the CERTS of previous version
1=Device Manager on your Windows machine.
Look for 'Universal Serial Bus (USB) Controller', you will find 'Apple Mobile Device USB Driver' as a subitem there.
Right Click and choose 'Properties', navigate to 'Details' tab and select Device Instance Path from the dropdown list box. At the end of this information string you will find the bootrom version, e.g. (iBoot-359.3.2)
alternatively
2=you can download USB VEIW (http://www.ftdichip.com/Resources/Utilities/usbview.zip)
RUN it scrol down to it should look like this if the boot is 359.3.2 you can leave it alone as it has no solution yet except the case you have already saved the CERTS of previous version