I think you can also use the WinFUP program, to check the firmware status of your speakers, when you connect them through RS232 over SpeakerLink with your PC.

WinFUP has this option, I've used it in the past for this.

#1 568.2mm, HD621, G91DH, 513, 511, DSP3100 , DSP33C , DSP33, 2x MJ Pro 50 MKI, M1500
#2 G68ADV, HD621, DSP3100, DSP33C, DSP33, 3x MJ Pro 50 MKII, Control 15, Vertex 2
#3 G61rsl, HD621, 596P, DSP7000, DSP5500HC, DSP33, 2x MJ Pro 50 MKII, M1500

Spare: , 2x 568.2mm, 562V.2, DSP33, Director, G55, M60.2, MS200,
Applied mods: NOS-SRx Filter by Mr. Apodizer