Dagnabbit! I got caught up in a car repair and forgot to call the help line before the weekend, since my follow up email has gone unanswered. Maybe someone here can help.
A second “experimental” G5 was purchased from Aircraft Spruce and installed as a dedicated HSI in an RV9a. As part of the installation, I upgraded the existing G5 to experimental software 6.76. But it appears the new G5 has certified software 6.82 installed. When I insert the micro sd card, the new G5 will not “downgrade” to the experimental software. So now I have a mismatch, with associated warnings.
The advice from an email to g3xpert was as follows:
Please use the following steps to load 6.76 software.
G5 Alternate SW Update Method (Force Load):
PWR up G5 in < Configuration Mode >
Selcet < Device Information >
Scroll Down & Select < SFD (#) >
Scroll Down To < Software Version >
Select < Update >
SW Update Window Appears
Select < OK >
But, I can not get to the final < Update > option: