Unsupported android version

For OS unsupported android devices starts from Android version 8.0 and below.

Android 8.1 and above = supported (as of Feb 2022)Setel

App version 1.81 and below = unsupported.

However in some case due to variable reliability, Setel app version must be 1.89 and above to read app version

Minimum supported requirement:
OS: Android 8.1 and above
Setel App version: 1.82 and above

Refer FAQ