I had traded a burned up Agilent 33250A with someone on here for this 34405A 5 Digit DVM. It had worked great. After Trescal calibrated it, it started intermittently getting that Error 635 during bootup. Now it does it all the time.
I rely on this DVM for the USB Data with my service software.
I see a lot of fixes of re-flashing the pic chip. That is well beyond me. Is there any other fix or do I just have to buy a new DVM? I guess I would go for a 34401A if I can find one reasonable. My preference is to get this one working.
Agilent states to update the firmware. I can't do that without being able to connect with it. I also read of a number of them bricking when updating the firmware,
If someone know hows to fix this and wouldn't charge me an arm and a leg, I would ship this off to you and pay you for it.
Thanks kindly for your help.
Dave