diff --git a/hgdriver/hgdev/hg_scanner_302.cpp b/hgdriver/hgdev/hg_scanner_302.cpp
index af59264..27718ab 100644
--- a/hgdriver/hgdev/hg_scanner_302.cpp
+++ b/hgdriver/hgdev/hg_scanner_302.cpp
@@ -1054,6 +1054,8 @@ int hg_scanner_302::start(void)
 			ret = status_ = SCANNER_ERR_DEVICE_PAPER_JAMMED;
 		else if (val == 3)
 			ret = status_ = SCANNER_ERR_DEVICE_NO_PAPER;
+		else if (val == 5)
+			ret = status_ = SCANNER_ERR_DEVICE_ISLOCK;
 		else
 		{
 			VLOG_MINI_2(LOG_LEVEL_WARNING, "consider as success on SR_GET_ANDROID_STATE(%d) result: %s\n", val, hg_scanner_err_name(ret));