You need R04.22.00 FW and APX v26.0 CPS and an APX programming cable.
However, there are implications once you "read/write" to the radio, it appears to drop out of Radio Management/Radio Central and the serial number will have to be re-added to the fleet RM. We (radio techs) got special permission from our radio fleet manager to change/modify our own codeplugs of our radios.
APX NEXT can now be end user programmed
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Re: APX NEXT can now be end user programmed
Yay. Motorola added back a feature to radios that should be standard. Congrats to them.