diff --git a/pico-keys-sdk b/pico-keys-sdk
index a5f19a1..d458250 160000
--- a/pico-keys-sdk
+++ b/pico-keys-sdk
@@ -1 +1 @@
-Subproject commit a5f19a135673d5bd4edb9f10cea65758a3e7e7d5
+Subproject commit d4582508879bb7d6022bcf0dd03f823e29c5db30
diff --git a/src/hsm/cmd_extras.c b/src/hsm/cmd_extras.c
index 02736ee..cbbde54 100644
--- a/src/hsm/cmd_extras.c
+++ b/src/hsm/cmd_extras.c
@@ -227,6 +227,12 @@ int cmd_extras() {
                 }
                 tmp[P2(apdu)] = apdu.data[0];
             }
+            else if (P2(apdu) == PHY_OPTS) {
+                if (apdu.nc != 2) {
+                    return SW_WRONG_LENGTH();
+                }
+                memcpy(tmp + PHY_OPTS, apdu.data, 2);
+            }
             else {
                 return SW_INCORRECT_P1P2();
             }