diff --git a/honeycam_patcher.py b/honeycam_patcher.py
index 294b6aa..ab3da0c 100644
--- a/honeycam_patcher.py
+++ b/honeycam_patcher.py
@@ -71,8 +71,6 @@ PATCHES = [
      'sub_1401558B0 (Edition read -> return 1)'),
     (0x1577D0, b'\x4C\x89\x4C\x24\x20\x4C', b'\xB0\x01\xC3',
      'sub_1401581D0 (online verify -> return 1)'),
-    (0x155490, b'\x48\x89\x5C\x24\x18\x55', b'\xB0\x01\xC3',
-     'sub_140155E90 (registry write -> return 1)'),
     (0x0F8F09, b'\x0F\x85\x51\x05\x00\x00', b'\x90\x90\x90\x90\x90\x90',
      'NOP: key length check'),
     (0x0F8F16, b'\x0F\x8C\x44\x05\x00\x00', b'\x90\x90\x90\x90\x90\x90',
@@ -83,8 +81,6 @@ PATCHES = [
      'NOP: @ position check'),
     (0x0F8F54, b'\x74\x1B', b'\xEB\x1B',
      'jz -> jmp (skip lm.dll key validation)'),
-    (0x0F8C90, b'\x48\x89\x5C\x24\x20\x4C', b'\xB0\x01\xC3',
-     'sub_1400F9690 (register function -> return 1)'),
 ]
 
 
@@ -290,14 +286,27 @@ def do_restore():
 
 
 def generate_keygen(email):
-    """生成注册码"""
+    """生成注册码
+    
+    Honeycam 注册码格式: 26 字符
+    - 前 8 位: 日期 YYYYMMDD (正则 [2][0-1][0-9][0-9][0-1][0-9][0-3][0-9])
+    - 后 18 位: 任意字符
+    """
+    import datetime
     seed = int(hashlib.md5(email.encode()).hexdigest()[:8], 16)
     rng = random.Random(seed)
-    segments = []
-    for _ in range(4):
-        seg = ''.join(rng.choices('0123456789ABCDEF', k=8))
-        segments.append(seg)
-    return '-'.join(segments)
+    
+    # 前 8 位: 日期 (2019-2021 年范围, 匹配正则 [2][0-1][0-9][0-9])
+    year = rng.randint(2019, 2021)
+    month = rng.randint(1, 12)
+    day = rng.randint(1, 28)
+    date_prefix = f"{year}{month:02d}{day:02d}"
+    
+    # 后 18 位: 随机字符
+    charset = string.ascii_letters + string.digits
+    suffix = ''.join(rng.choices(charset, k=18))
+    
+    return date_prefix + suffix
 
 
 def do_keygen():