new version of 88MZ100 7.4" tag firmware + patch_mac.py for easy mac change

No need for HxD anymore for this firmware. See https://github.com/jjwbruijn/OpenEPaperLink/wiki/88MZ100-Programming-and-interfacing

Tag_Flasher/patch_mac.py

@@ -0,0 +1,25 @@
+import argparse
+
+def patch_mac(file_path, mac):
+    try:
+        with open(file_path, "r+b") as file:
+            offset = 0x0148
+            mac_bytes = bytearray.fromhex(mac)
+            mac_bytes.reverse()  # Reverse the byte order
+
+            file.seek(offset)
+            file.write(mac_bytes)
+            print(f"MAC address patched successfully.")
+    except FileNotFoundError:
+        print("Error: File not found.")
+    except Exception as e:
+        print(f"An error occurred: {e}")
+
+if __name__ == "__main__":
+    parser = argparse.ArgumentParser(description="Patch MAC address in a binary firmware file for the 88MZ100 7.4 inch esl")
+    parser.add_argument("-mac", required=True, help="MAC address (without colons)")
+    parser.add_argument("filename", help="Binary file to patch")
+
+    args = parser.parse_args()
+    patch_mac(args.filename, args.mac)
+