This article describes behavior observed on one real IF_B8B-based scale. Confirmed findings are separated from assumptions that may vary between firmware revisions. TL;DR I reverse engineered the proprietary IF_B8B BLE protocol used by the GARLYN Bodyscan Master and built an Android application...
Source: [Dev.to](https://dev.to/fedor-pasynkov/reverse-engineering-a-ble-body-scale-on-android-gatt-queues-handshakes-and-bia-packets-27eg)