https://www.googlenestcommunity.com/t5/Nest-Protect/Reconnect-with-only-a-serial-number/m-p/155582#M2883 <P>I know this may be redundant but reading the posts so far I’m still confused. My protect failed to connect when I changed my Wi-Fi. The ceiling is too high for me to get up to. I only have the serial number not the entry key. Can I somehow reinstall it by entering the serial number only. Setup only asks for the entry code. Thanks&nbsp;</P> Wed, 04 May 2022 15:31:27 GMT BillMV 2022-05-04T15:31:27Z https://www.googlenestcommunity.com/t5/Nest-Protect/Reconnect-with-only-a-serial-number/m-p/155582#M2883 <P>I know this may be redundant but reading the posts so far I’m still confused. My protect failed to connect when I changed my Wi-Fi. The ceiling is too high for me to get up to. I only have the serial number not the entry key. Can I somehow reinstall it by entering the serial number only. Setup only asks for the entry code. Thanks&nbsp;</P> Wed, 04 May 2022 15:31:27 GMT https://www.googlenestcommunity.com/t5/Nest-Protect/Reconnect-with-only-a-serial-number/m-p/155582#M2883 BillMV 2022-05-04T15:31:27Z https://www.googlenestcommunity.com/t5/Nest-Protect/Reconnect-with-only-a-serial-number/m-p/156247#M2887 <P>I have a similar problem. &nbsp;My electrician destroyed the QR code and the entry number while installing. I have the serial number but no entry code. &nbsp;The app does not allow anything but Entry code, but it is supposed to offer serial number insertion</P> Thu, 05 May 2022 14:02:27 GMT https://www.googlenestcommunity.com/t5/Nest-Protect/Reconnect-with-only-a-serial-number/m-p/156247#M2887 Danplan 2022-05-05T14:02:27Z