Sprint Booster & P2121 code

Everything is still good with the replacement SB. If it acts up again, I'll update. The original worked good for a little over 2 years. I know electronics can be unpredictable and nothing lasts forever. Sorry for missing the 30 days update.
 
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Going to revive almost 3yo thread.
I'm having same issue now with P2121 code...
2020 T4R also run 2 years without issues. I erased the code and turned off the SB, without disconnecting it. Will drive it like that for a while and see if code returns.
 
Going to revive almost 3yo thread.
I'm having same issue now with P2121 code...
2020 T4R also run 2 years without issues. I erased the code and turned off the SB, without disconnecting it. Will drive it like that for a while and see if code returns.

No issues with replacement since my last post in 2020.
 

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