diff --git a/server/src/usb_gadget.rs b/server/src/usb_gadget.rs
index d3a63d6..4030444 100644
--- a/server/src/usb_gadget.rs
+++ b/server/src/usb_gadget.rs
@@ -85,7 +85,7 @@ impl UsbGadget {
 
         /* 1 – detach gadget */
         info!("🔌 detaching gadget from {ctrl}");
-        Self::write_attr(self.udc_file, "")?;
+        Self::write_attr(self.udc_file, "none")?;
         Self::wait_state(&ctrl, "not attached", 3_000)?;
 
         /* 2 – reset driver */
@@ -97,13 +97,27 @@ impl UsbGadget {
         /* 4 – re‑attach + pull‑up */
         info!("🔌 re‑attaching gadget to {ctrl}");
         Self::write_attr(self.udc_file, &ctrl)?;
-        info!("Wrote udc file");
         let sc = format!("/sys/class/udc/{ctrl}/soft_connect");
-        Self::write_attr(&sc, "0")?;
-        info!("Wrote soft connect file 0");
-        thread::sleep(Duration::from_millis(50));
-        Self::write_attr(&sc, "1")?;
-        info!("Wrote soft connect file 1");
+        if Path::new(&sc).exists() {
+            // try to set the pull-up; ignore if the kernel rejects it
+            match Self::write_attr(&sc, "1") {
+                Err(err) => {
+                    // only swallow specific errno values
+                    if let Some(io) = err.downcast_ref::<std::io::Error>() {
+                        match io.raw_os_error() {
+                            // EINVAL | EPERM | ENOENT
+                            Some(libc::EINVAL) | Some(libc::EPERM) | Some(libc::ENOENT) => {
+                                warn!("soft_connect unsupported ({io}); continuing");
+                            }
+                            _ => return Err(err),        // propagate all other errors
+                        }
+                    } else {
+                        return Err(err);                 // non-IO errors: propagate
+                    }
+                }
+                Ok(_) => { /* success */ }
+            }
+        }
 
         /* 5 – wait for host (but tolerate sleep) */
         Self::wait_state(&ctrl, "configured", 6_000)