I integrated Estimote Android SDK into my project. The client purchased several Estimote beacons.
Now I can detect them with Google Nexus and Asus Zenfone 6 but can't do it with Samsung devices and Lenovo.
Android version: 4.3, 4.4 and 5.0.
Estomote SDK: 0.6.1
Also, I installed the nRF Master Control Panel (BLE) app. It detects beacons on Samsung S3 eventhough OS didn't recognise them.