Firmware information March 25, 2024 13:36 There is no firmware information available for the One as updates can only be performed by a Service Engineer. Related articles One (CDRX30) - Technical Specification One (CDRX30) User Manual One (CDRX30) - IR Codes Does the Cambridge One support gapless CD playback? Azur 751R V1/V2 User Manual, RS232 Codes & Technical Specification