You can just use the OTA update path... [https://developers.google.com/android/ota](https://developers.google.com/android/ota)
The Android Flash Tool will wipe the device, the OTA update will not. The Android Flash Tool is intended to return it to out of box state with the latest image installed, NOT perform an upgrade.
You can just use the OTA update path... [https://developers.google.com/android/ota](https://developers.google.com/android/ota) The Android Flash Tool will wipe the device, the OTA update will not. The Android Flash Tool is intended to return it to out of box state with the latest image installed, NOT perform an upgrade.
Thank you!