[Baniway]

Thanks for the hint. My shield was also missing a large part of the esn. I added it back from the Android app and it's working great again!

How many characters did you have to add? My Firestick 4K has 64 characters at the end that are missing; do I have to write them ALL at the end?

Adding all of the characters through the Netflix addon ESN editor worked for me, too. I found that the full ESN was stored in the settings.xml file, so for my shield I used a mobile phone with the Android X-plore app to open the xml file and copy the string and the Kore app to paste it into the addon ESN editor. That saved me the aggravation of trying to enter it with a remote.

Hi! in which setting.xml file did you find the full ESN? Adding all of the characters through the Netflix addon ESN editor worked for me too but the 64 characters take a lot of time with the remote, and i can't find a setting.xml file with ESN in .kodi\userdata\addon_data\plugin.video.netflix\setting.xml (Fire TV 4K max). Maybe it's not this one xml?