The Mobile Lock Administration (MoLA) app uses NFC to provide you a fast and convenient way for configuring Gantner Eco-series battery locks. No cords or laptop required to configure locks.

With the MoLA app, you can:

• Configure factory default and on-site locks
• Possibility to apply same configuration to multiple locks (Bulk configuration)
• Edit configuration for multiple locks (Bulk edit configuration)
• View configuration status of locks configured using the MoLA app
• Track when a lock was opened, closed and factory reset
• Update lock time by syncing it with device time
• Switch between app languages English and German


Requirements:

• Gantner battery-powered locks - GAT ECO.Lock 7100 F/ISO series (firmware version 2.4.0 or higher)
• The device used must be NFC enabled
• A valid App Key is required for configuring on-site locks

Supported Device Issue:

In case you are not able to work with Xiaomi MI 9, probably it is setting issue. Kindly check below link
https://www.reddit.com/r/Xiaomi/comments/b3nyvf/mi_9_payment_by_nfc_issue_europe/