diff --git a/README.md b/README.md
index 8d72189..d909543 100644
--- a/README.md
+++ b/README.md
@@ -13,6 +13,17 @@ cd mydumps
 miLazyCracker
 ```
 
+Possible issue: 
+```bash
+error	libnfc.driver.pn53x_usb	Unable to set USB configuration (Device or resource busy)
+```
+Fix: 
+```bash
+sudo modprobe -r pn533_usb
+```
+
+
+
 This tool is comprised of work from:
 -  Aram Verstegen (https://github.com/aczid/crypto1_bs) 
 
diff --git a/miLazyCracker.sh b/miLazyCracker.sh
index 175a313..24b96d7 100755
--- a/miLazyCracker.sh
+++ b/miLazyCracker.sh
@@ -73,8 +73,9 @@ while [ $keepTrying -eq 1 ]; do
             #echo ${arr[2]}
             #echo ${arr[3]}
             #echo ${arr[4]}
-
-            knownKey=${arr[0]}
+		
+	    temp=($(echo ${arr[0]}|fold -w2))
+            knownKey=${temp[5]}${temp[4]}${temp[3]}${temp[2]}${temp[1]}${temp[0]}
             knownSectorNum=${arr[1]}
             knownKeyLetter=${arr[2]}
             unknownSectorNum=${arr[3]}