diff --git a/patch_v2/ncm_app/app/ui/login.c b/patch_v2/ncm_app/app/ui/login.c
index 213c297..9a0f9d2 100644
--- a/patch_v2/ncm_app/app/ui/login.c
+++ b/patch_v2/ncm_app/app/ui/login.c
@@ -78,7 +78,8 @@ static int get_unikey_and_qr(char *unikey, size_t usz)
 
 {
     int rc = ncm_login_unikey(g_st.ctx.device_id, unikey, usz);
-    if (rc != NCM_OK) return rc;
+    if (rc != NCM_OK) { meow_log(MEOW_LOG_ERROR, "login: unikey fetch failed rc=%d", rc); return rc; }
+    meow_log(MEOW_LOG_INFO, "login: unikey ok, qr ready");
     ncm_strlcpy(g_st.unikey, unikey, sizeof g_st.unikey);
     ncm_login_qr_url(unikey, g_st.qr_url, sizeof g_st.qr_url);
     int size = 0;
@@ -96,6 +97,7 @@ static void *login_worker(void *arg)
     (void)arg;
     char unikey[64];
     if (get_unikey_and_qr(unikey, sizeof unikey) != NCM_OK) { g_err = 1; return NULL; }
+    meow_log(MEOW_LOG_INFO, "login: poll worker start");
 
     char cookie[NCM_COOKIE_MAX];
     ncm_strlcpy(cookie, g_st.ctx.cookie, sizeof cookie);
@@ -105,10 +107,13 @@ static void *login_worker(void *arg)
         char out_cookie[NCM_COOKIE_MAX];
         int rc = ncm_login_poll(g_st.ctx.device_id, unikey, cookie, &r,
                                 out_cookie, sizeof out_cookie);
-        if (rc != NCM_OK) { g_err = 1; usleep(2 * 1000 * 1000); continue; }
+        if (rc != NCM_OK) { meow_log(MEOW_LOG_WARN, "login: poll failed rc=%d", rc); g_err = 1; usleep(2 * 1000 * 1000); continue; }
+        if (r.state != g_st.login_state)
+            meow_log(MEOW_LOG_INFO, "login: state -> %d", (int)r.state);
         g_st.login_state = r.state;
 
         if (r.state == NCM_LOGIN_OK) {
+            meow_log(MEOW_LOG_INFO, "login: 803 confirmed, saving cookie");
             ncm_strlcpy(cookie, out_cookie, sizeof cookie);
             ncm_ctx_set_cookie(&g_st.ctx, cookie);
             /* 拿 uid/nickname */
diff --git a/patch_v2/ncm_app/ncm b/patch_v2/ncm_app/ncm
index fb7818a..cffa6ba 100755
Binary files a/patch_v2/ncm_app/ncm and b/patch_v2/ncm_app/ncm differ