We have a client that have an Portal installation and Esri apps for the field work (Survey123, Workforce, Collector)
In short: Survey123 does not log in when using a local certificate authority certificate but works fine when using a public certificate:
Does anyone know how to work around this problem?
This is not a Lenovo issue - it is a portal certificate issue. So you are fine to proceed. Just ensure that the Android version meets the Survey123 minimum requirements: System requirements—Survey123 for ArcGIS | ArcGIS
Deon, I am leaning toward the Lenovo but want to ensure one thing - can you tell me whether Collector for ArcGIS allowing the connection with the external sd port for additional storage with this device? I'm assuming that there won't be any issues but I want to make certain because the external sd card storage basemaps are important for our projects.