stonymtnleaf wrote:I purchased a US sourced TCU upgrade unit from an online Nissan parts store in Texas, p/n 283B0-3NA2A.
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.
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.