How to fix Radio (3G) not working (voice calls, data)

My original HTC (Radio 1.27.12.11) never was able to recieve or create voice calls via 3G nor do any data transfer. Only GSM mode was working, but then for what reason I was going for the Kaiser ?.

Thanks to Pof's work on the HardSPL tool and Dark Simpsons "htc rom tool" and all others contributed to this tools, using the posted french ROM with Radio 1.27.12.17 and the rest from the original HTC rom I compiled a new ROM image.
With this Radio rom I just confirmed that 3G is now working...

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