diff --git a/README.md b/README.md
index 75767d9b..5907c8d8 100644
--- a/README.md
+++ b/README.md
@@ -19,6 +19,11 @@ itchat是一个开源的微信个人号接口，使用python调用微信从未
 ```python
 pip install itchat
 ```
+deepin系统或者UOS，采用下面的命令：
+
+```
+pip install itchat-uos==1.5.0.dev0
+```
 
 ## 简单入门实例
 
diff --git a/itchat/components/login.py b/itchat/components/login.py
index c1fb0391..1e7d0836 100644
--- a/itchat/components/login.py
+++ b/itchat/components/login.py
@@ -48,6 +48,7 @@ def login(self, enableCmdQR=False, picDir=None, qrCallback=None,
             qrStorage = self.get_QR(enableCmdQR=enableCmdQR,
                 picDir=picDir, qrCallback=qrCallback)
             logger.info('Please scan the QR code to log in.')
+            time.sleep(18)
         isLoggedIn = False
         while not isLoggedIn:
             status = self.check_login()