Android developers can implement automatic eSIM installation without special permissions since Android 9 (API level 28). The functionality works through Remote SIM Provisioning (RSP) architecture, featuring the Local Profile Assistant (LPA) that manages eSIM profiles on devices. LPA consists of backend components working with eUICC API and frontend UI components for user interaction.

Developers can create custom LPA implementations by extending android.service.euicc.EuiccService or use existing device implementations. The process requires obtaining an activation code with SMDP address and token. Code examples show preparing subscriptions for downloading and initiating the process through EuiccManager, with options to automatically switch profiles.

Download errors trigger resolvable issues requiring user intervention. The guide demonstrates handling these through EsimErrorResolverBroadcastReceiver, which launches resolution activities and processes results. This approach allows embedding eSIM functionality into various architectural patterns like MVP, MVVP, or MVI.