Support GL600 GPS lock

1 files changed, 2 insertions, 2 deletions

diff --git a/src/main/java/org/traccar/protocol/Jt600ProtocolDecoder.java b/src/main/java/org/traccar/protocol/Jt600ProtocolDecoder.java
index 9fa550ded..9ed44f565 100644
--- a/src/main/java/org/traccar/protocol/Jt600ProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/Jt600ProtocolDecoder.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2012 - 2021 Anton Tananaev (anton@traccar.org)
+ * Copyright 2012 - 2022 Anton Tananaev (anton@traccar.org)
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -143,7 +143,7 @@ public class Jt600ProtocolDecoder extends BaseProtocolDecoder {
 
         boolean responseRequired = false;
 
-        while (buf.readableBytes() > 1) {
+        while (buf.readableBytes() >= 17) {
 
             Position position = new Position(getProtocolName());
             position.setDeviceId(deviceSession.getDeviceId());