I have tried it on EMX 2 years ago and had lot of trouble.
Sometimes at power up it will return null, so the code has to go to default values.
So I ended up using a EEPROM.
Has the bugs been fixed by now.
Can I use it with some level of confidence on G120?
Can someone tell how reliable the EWR is now; on the platform they are working.
my understanding, from discussion with Microsoft years ago, is that ewr is not reliable by design! So this is not really a bug. I personally never understood the value of ewr if the data is expected to simply disappear.