diff --git a/README.md b/README.md
index b0b58d2..7a8f4eb 100644
--- a/README.md
+++ b/README.md
@@ -7,7 +7,10 @@ OverUB is a modular Telegram userbot built around a plugin-first architecture.
    - Optional for QR display: `pip install qrcode`
 2. Edit `config/config.yml`
 3. Run: `python -m __main__`
-4. Optional: set `bot.login_mode` to `qr` for QR login
+4. Optional login modes:
+   - `phone` (default)
+   - `qr` (QR login)
+   - `sms` (force SMS code)
 
 ## CLI
 - `python -m __main__ create-plugin <name>`
diff --git a/core/client.py b/core/client.py
index 29f13c1..93920a3 100644
--- a/core/client.py
+++ b/core/client.py
@@ -52,6 +52,22 @@ class ClientWrapper:
             except SessionPasswordNeededError:
                 password = await self._prompt("Two-step verification enabled. Enter password: ")
                 await self.client.sign_in(password=password)
+        elif login_mode in {"sms", "code"}:
+            if not phone:
+                raise RuntimeError("Phone number required for login")
+            await self.client.connect()
+            if await self.client.is_user_authorized():
+                logger.info("Telethon client already authorized")
+                return
+            sent = await self.client.send_code_request(phone, force_sms=login_mode == "sms")
+            code_type = getattr(sent, "type", None)
+            logger.info("Login code type: %s", type(code_type).__name__ if code_type else "unknown")
+            code = await self._prompt("Please enter the code you received: ")
+            try:
+                await self.client.sign_in(phone=phone, code=code, phone_code_hash=sent.phone_code_hash)
+            except SessionPasswordNeededError:
+                password = await self._prompt("Two-step verification enabled. Enter password: ")
+                await self.client.sign_in(password=password)
         else:
             await self.client.start(phone=phone)
         logger.info("Telethon client connected")