certificate: setup and Settings say that some newer cars reject the aasdk certificate, and that you import your own then

gearslip/src/main/java/app/seb3thehacker/gearslip/ui/CertSetupScreen.kt

@@ -107,6 +107,16 @@ fun CertSetupScreen(onDone: () -> Unit) {
                     fontWeight = FontWeight.SemiBold,
                     color = MaterialTheme.colorScheme.primary,
                 )
+                // A downloaded certificate works in most cars, not all: say where to go when it doesn't.
+                if (!manualProgress) {
+                    Text(
+                        stringResource(R.string.certsetup_installed_hint),
+                        style = MaterialTheme.typography.bodyMedium,
+                        textAlign = TextAlign.Center,
+                        color = MaterialTheme.colorScheme.onSurfaceVariant,
+                        modifier = Modifier.padding(top = 8.dp),
+                    )
+                }
                 Spacer(Modifier.height(20.dp))
                 Button(onClick = onDone, modifier = Modifier.fillMaxWidth().height(56.dp)) {
                     Text(stringResource(R.string.certsetup_continue))

gearslip/src/main/java/app/seb3thehacker/gearslip/ui/SettingsScreen.kt

@@ -255,7 +255,11 @@ private fun CertificateSection() {
         if (uri != null) pendingUri = uri
     }
 
-    SettingsSection(stringResource(R.string.settings_certificate), footer = notice ?: stringResource(R.string.cert_next_connection)) {
+    // With the aasdk certificate loaded, the footer says what to do when a car rejects it.
+    val certFooter = stringResource(
+        if (summary?.kind == CertProvider.Kind.DOWNLOADED) R.string.cert_downloaded_footer else R.string.cert_next_connection,
+    )
+    SettingsSection(stringResource(R.string.settings_certificate), footer = notice ?: certFooter) {
         val s = summary
         val loaded = s != null && s.kind != CertProvider.Kind.SELF_SIGNED
         val hasDetails = s?.subject != null || s?.issuer != null