fm11rf08s script: Use last 4 bytes from UID, fixes crash on FM11RF08S-7B

CHANGELOG.md

@@ -3,6 +3,7 @@ All notable changes to this project will be documented in this file.
 This project uses the changelog in accordance with [keepchangelog](http://keepachangelog.com/). Please use this to write notable changes, which is not the same as git commit log...
 
 ## [unreleased][unreleased]
+- Fixed fm11rf08s script for non-4B UID (FM11RF08S-7B) (@Foxushka)
 - Added more fingerprinting in `hf mf info` (@doegox)
 - Added --issue and (--emu)lator support to `hf iclass encode` command (@micsen)
 - Added custom CTF Wiegand format from Defcon32 with comments (@micsen)

client/pyscripts/fm11rf08s_recovery.py

@@ -72,7 +72,7 @@ p.console("hf 14a read")
 uid = None
 for line in p.grabbed_output.split('\n'):
     if "UID:" in line:
-        uid = int(line[10:].replace(' ', ''), 16)
+        uid = int(line[10:].replace(' ', '')[-8:], 16)
 if uid is None:
     print("Card not found")
     if restore_color: