diff --git a/extras/AT Command Manuals/u-blox SARA-U2 ProductSummary (UBX-13004142).pdf b/extras/AT Command Manuals/u-blox SARA-U2 ProductSummary (UBX-13004142).pdf
deleted file mode 100644
index 763902a..0000000
Binary files a/extras/AT Command Manuals/u-blox SARA-U2 ProductSummary (UBX-13004142).pdf and /dev/null differ
diff --git a/src/TinyGsmClientXBee.h b/src/TinyGsmClientXBee.h
index 5f744c7..cf6b18b 100644
--- a/src/TinyGsmClientXBee.h
+++ b/src/TinyGsmClientXBee.h
@@ -431,7 +431,7 @@ public:
     }
 
     else if (!maintainAssociation){
-        sendAT(GF("SO"),1);  // For lowest power, dissassociated deep sleep
+        sendAT(GF("SO"),1);  // For supported cellular modules, maintain association
                              // Not supported by all modules, will return "ERROR"
         waitResponse();
     }