Products > Test Equipment

Fnirsi SG-003A & SG-004A Signal Generators

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Phil1977:
Just FYI: I´ve just got feedback from a passive forum member that flashing the SG04 from V2.7 directly to V2.11 seems to brick the device.

His solution was also to make the flashdrive reappear by some disassembly and then flashing to V2.9 before going to V2.11

Version V2.9 is available at the following link provided by FNIRSI: https://www.mediafire.com/file/2p27blzirvvnvce/SG-004A_V2.9%25281%2529.bin/file

gigotpendu:
Thanks for the info and it LIVES AGAIN. Whe I first bricked it I fiddled with it for a while and then, throwing up my hands, left it for a few days. When I reconnected to PC in 48-72 hours and waited maybe 15 minutes I got the ding-dong and boot loader folder. I then put in a new copy of 2.11... bricked again. With your help and anothers, I got the headsup on the migration path you cant go right to 2.11 if you have FW below 2.9 which apparently I do. BTW how the heck can you find the FW on the screens... haven't came across that yet.

What ever the brick does, it drains the battery and re-powering the HW must wait the battery upcharge unless you disconnect the battery. I did both. Whether the battery dsisconnect was needed is unknown.

My fix and maybe its "THE" Fix

IF your FW is below 2.9 load 2.9 then the latest greatest which at this time is 2.11.

Thanks all

gigotpendu:
Phil, thanks for the heads up on the 2.9 first that did it.

Mike1233:
I also installed V 2.9 and then 2.11.
Did not have any problems.

Aldo22:
Does the SG-003A have any (general) use for a hobbyist who already has an AWG, a DPS-150 PSU and relatively accurate DMMs?
I've seen all the videos on it, but I still don't get it.
Yes, you can convert voltages to frequencies, for example, but for what purpose do I need that?
Does anyone have a scenario that justifies the purchase of this device for non-professionals?

It's cheap, it's kind of tempting, but I should recognize some purpose for myself before I order it.

Thank you.

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