diff --git a/src/calibre/devices/android/driver.py b/src/calibre/devices/android/driver.py
index 571ceee55d..2f00338879 100644
--- a/src/calibre/devices/android/driver.py
+++ b/src/calibre/devices/android/driver.py
@@ -40,6 +40,7 @@ class ANDROID(USBMS):
                        0xcac  : [0x100, 0x0227, 0x0226, 0x222],
                        0xccf  : [0x100, 0x0227, 0x0226, 0x222],
                        0x2910 : [0x222],
+                       0xff9  : [0x9999],
             },
 
             # Eken