Hello, I have 2 questions, I have a APX7000XE and a 6000 (BN) Model 1.5, I would like to "upgrade" them to 3.5. I know I can do it on the 7000XE, it is on R14, but the 6000 is on R21. Is it possible to "upgrade" the 6000 since it's on R21? My second question is what parts would I need to...
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