If this is from a 3rd party company, they probably don't have access to the recent TCU upgrade parts, so I am rather curious, was it a 2016 Model Year Part? Because 2011-2015 were all 2G only. No point in swapping if it doesn't default to 3G.stonymtnleaf wrote: I purchased a US sourced TCU upgrade unit from an online Nissan parts store in Texas, p/n 283B0-3NA2A.
If it doesn't work you, you can use our software fix, and at least get 2G access until the end of 2017 when Rogers is scheduled to phase out 2G.