Spontaneous restarting e7 won't initialize

[JDAmesse]

Hi, I know this is an older post but having the same issue lately on my E7D unit. (Display - V19.03 / Radom 1.04)
I did go thru the suggested procedure and can confirm that, On my end, the problem is directly related to the Radar. When not connected to unit, Boot up sequence is complete and unit functional. When Radom is plugged in the back of the unit, boot up sequence sometimes gets, thru but often it goes into rebooting sequences indefinitely.
House batteries ( 2x 6 v) are topped at 100% and also have 12.7 v on supply voltage reading in the e7D unit diagnostic page (w/o Radom connected...). No idea what it is when radar is powering up as I can't make it to that page. Voltage rating at the circuit disconnect (electrical panel) is stable at over 13 v depending on charging stage and no significant voltage drop is noticed on the voltmeter when this problem occurs.
Hope someone can give me a hint!

JD Amesse