Hi @zounneme,
Unfortunately I do not have the answer to your login question but I hope someone else can assist you.
Regarding Screenshots/sharing:
The DHIS2 Android application is designed to block screen sharing and screen capture because in many instances it is used to capture sensitive personal and identifiable information. Blocking those features is seen as a security feature. If you are using the application for an implementation that does not potentially expose PII, then is is possible to use the “training APK” which the same APK, but allows for screenshots/sharing. You can download the Training APK from here: dhis2-android-capture-app/releases and install it directly on your android device.