https://www.googlenestcommunity.com/t5/Nest-Thermostats/Nest-3rd-gen-gives-last-4-digits-of-S-N-but-app-doesn-t-recognize-this/m-p/23922#M4460 <P>It was 5L0DME which I ignored because the next line was "serial number" which was light up and gave 0DMM, which wouldn't work. OK now</P> Fri, 08 Oct 2021 20:24:04 GMT johny 2021-10-08T20:24:04Z https://www.googlenestcommunity.com/t5/Nest-Thermostats/Nest-3rd-gen-gives-last-4-digits-of-S-N-but-app-doesn-t-recognize-this/m-p/23918#M4459 Fri, 08 Oct 2021 20:19:02 GMT https://www.googlenestcommunity.com/t5/Nest-Thermostats/Nest-3rd-gen-gives-last-4-digits-of-S-N-but-app-doesn-t-recognize-this/m-p/23918#M4459 johny 2021-10-08T20:19:02Z https://www.googlenestcommunity.com/t5/Nest-Thermostats/Nest-3rd-gen-gives-last-4-digits-of-S-N-but-app-doesn-t-recognize-this/m-p/23922#M4460 <P>It was 5L0DME which I ignored because the next line was "serial number" which was light up and gave 0DMM, which wouldn't work. OK now</P> Fri, 08 Oct 2021 20:24:04 GMT https://www.googlenestcommunity.com/t5/Nest-Thermostats/Nest-3rd-gen-gives-last-4-digits-of-S-N-but-app-doesn-t-recognize-this/m-p/23922#M4460 johny 2021-10-08T20:24:04Z https://www.googlenestcommunity.com/t5/Nest-Thermostats/Nest-3rd-gen-gives-last-4-digits-of-S-N-but-app-doesn-t-recognize-this/m-p/23972#M4467 <P>Hey folks,<BR /> It looks like we have come to a solution so I'm going to be locking this thread. If you have any other concerns or questions, please feel free to create a new thread.<BR /> <BR /> Have a great day.<BR /> Garrett DS<BR /> &nbsp;</P> Fri, 08 Oct 2021 22:17:44 GMT https://www.googlenestcommunity.com/t5/Nest-Thermostats/Nest-3rd-gen-gives-last-4-digits-of-S-N-but-app-doesn-t-recognize-this/m-p/23972#M4467 GarrettDS 2021-10-08T22:17:44Z