diff --git a/binlog.c b/binlog.c
index 2f5a742..30f536f 100644
--- a/binlog.c
+++ b/binlog.c
@@ -53,6 +53,7 @@ static int binlog_buffer[BINLOG_BUFFER_SIZE];
 static int *rptr;
 static int *wptr;
 static int binlog_fd;
+static int in_replay_log; // should be used ONLY for DEBUG
 
 
 #define MAX_LOG_EVENT_SIZE (1 << 17)
@@ -140,13 +141,15 @@ static int fetch_comb_binlog_set_dh_params (void *extra) {
 static int fetch_comb_binlog_set_pts (void *extra) {
   int new_pts = fetch_int ();
   assert (new_pts >= tgl_state.pts);
+  vlogprintf (E_DEBUG - 1 + 2 * in_replay_log, "pts %d=>%d\n", tgl_state.pts, new_pts);
   tgl_state.pts = new_pts;
   return 0;
 }
 
 static int fetch_comb_binlog_set_qts (void *extra) {
   int new_qts = fetch_int ();
-  //assert (new_qts >= qts);
+  assert (new_qts >= tgl_state.qts);
+  vlogprintf (E_DEBUG - 1 + 2 * in_replay_log, "qts %d=>%d\n", tgl_state.qts, new_qts);
   tgl_state.qts = new_qts;
   return 0;
 }
@@ -164,6 +167,7 @@ static int fetch_comb_binlog_set_seq (void *extra) {
     vlogprintf (E_ERROR, "Error: old_seq = %d, new_seq = %d\n", tgl_state.seq, new_seq);
   }
   assert (new_seq >= tgl_state.seq);
+  vlogprintf (E_DEBUG - 1 + 2 * in_replay_log, "seq %d=>%d\n", tgl_state.seq, new_seq);
   tgl_state.seq = new_seq;
   return 0;
 }
@@ -1087,6 +1091,7 @@ static int fetch_comb_binlog_msg_seq_update (void *extra) {
   struct tgl_message *M = tgl_message_get (fetch_long ());
   assert (M);
   tgl_state.seq ++;
+  vlogprintf (E_DEBUG - 1 + 2 * in_replay_log, "seq %d=>%d\n", tgl_state.seq - 1, tgl_state.seq);
 
   if (tgl_state.callback.msg_receive) {
     tgl_state.callback.msg_receive (M);
@@ -1234,6 +1239,7 @@ void tgl_replay_log (void) {
     exit (2);
   }
   int end = 0;
+  in_replay_log = 1;
   while (1) {
     if (!end && wptr - rptr < MAX_LOG_EVENT_SIZE / 4) {
       if (wptr == rptr) {
@@ -1259,6 +1265,7 @@ void tgl_replay_log (void) {
     if (wptr == rptr) { break; }
     replay_log_event ();
   }
+  in_replay_log = 0;
   close (fd);
 }
 
@@ -1573,6 +1580,7 @@ void bl_do_encr_chat_init (int id, int user_id, unsigned char random[], unsigned
 
 void bl_do_set_pts (int pts) {
   if (tgl_state.locks & TGL_LOCK_DIFF) { return; }
+  if (pts == tgl_state.pts) { return; }
   int *ev = alloc_log_event (8);
   ev[0] = CODE_binlog_set_pts;
   ev[1] = pts;
@@ -1580,6 +1588,8 @@ void bl_do_set_pts (int pts) {
 }
 
 void bl_do_set_qts (int qts) {
+  if (tgl_state.locks & TGL_LOCK_DIFF) { return; }
+  if (qts == tgl_state.qts) { return; }
   int *ev = alloc_log_event (8);
   ev[0] = CODE_binlog_set_qts;
   ev[1] = qts;
@@ -1588,6 +1598,7 @@ void bl_do_set_qts (int qts) {
 
 void bl_do_set_date (int date) {
   if (tgl_state.locks & TGL_LOCK_DIFF) { return; }
+  if (date == tgl_state.date) { return; }
   int *ev = alloc_log_event (8);
   ev[0] = CODE_binlog_set_date;
   ev[1] = date;
@@ -1596,6 +1607,7 @@ void bl_do_set_date (int date) {
 
 void bl_do_set_seq (int seq) {
   if (tgl_state.locks & TGL_LOCK_DIFF) { return; }
+  if (seq == tgl_state.seq) { return; }
   int *ev = alloc_log_event (8);
   ev[0] = CODE_binlog_set_seq;
   ev[1] = seq;
diff --git a/loop.c b/loop.c
index 32eda8f..ade71a7 100644
--- a/loop.c
+++ b/loop.c
@@ -138,7 +138,7 @@ static void stdin_read_callback_line (evutil_socket_t fd, short what, void *arg)
 
 void net_loop (int flags, int (*is_end)(void)) {
   delete_stdin_event = 0;
-  if (verbosity) {
+  if (verbosity >= E_DEBUG) {
     logprintf ("Starting netloop\n");
   }
   struct event *ev = 0;
@@ -184,7 +184,7 @@ void net_loop (int flags, int (*is_end)(void)) {
     event_free (ev);
   }
   
-  if (verbosity) {
+  if (verbosity >= E_DEBUG) {
     logprintf ("End of netloop\n");
   }
 }
@@ -474,9 +474,13 @@ int loop (void) {
  
   if (binlog_enabled) {
     double t = tglt_get_double_time ();
-    logprintf ("replay log start\n");
+    if (verbosity >= E_DEBUG) {
+      logprintf ("replay log start\n");
+    }
     tgl_replay_log ();
-    logprintf ("replay log end in %lf seconds\n", tglt_get_double_time () - t);
+    if (verbosity >= E_DEBUG) {
+      logprintf ("replay log end in %lf seconds\n", tglt_get_double_time () - t);
+    }
     tgl_reopen_binlog_for_writing ();
   } else {
     read_auth_file ();
@@ -497,7 +501,7 @@ int loop (void) {
   tgl_do_help_get_config (on_get_config, 0);
   net_loop (0, got_config);
 
-  if (verbosity) {
+  if (verbosity >= E_DEBUG) {
     logprintf ("DC_info: %d new DC got\n", new_dc_num);
   }
 
@@ -524,8 +528,10 @@ int loop (void) {
     }
     tgl_do_send_code (default_username, sign_in_callback, 0);
     net_loop (0, sent_code);
-    
-    logprintf ("%s\n", should_register ? "phone not registered" : "phone registered");
+   
+    if (verbosity >= E_DEBUG) {
+      logprintf ("%s\n", should_register ? "phone not registered" : "phone registered");
+    }
     if (!should_register) {
       char *code = 0;
       size_t size = 0;
diff --git a/queries.c b/queries.c
index b9ec4dc..da85e19 100644
--- a/queries.c
+++ b/queries.c
@@ -2917,7 +2917,7 @@ void tgl_do_get_difference (int sync_from_start, void (*callback)(void *callback
   tgl_do_insert_header ();
   if (tgl_state.seq > 0 || sync_from_start) {
     if (tgl_state.pts == 0) { tgl_state.pts = 1; }
-    if (tgl_state.qts == 0) { tgl_state.qts = 1; }
+    //if (tgl_state.qts == 0) { tgl_state.qts = 1; }
     if (tgl_state.date == 0) { tgl_state.date = 1; }
     out_int (CODE_updates_get_difference);
     out_int (tgl_state.pts);
diff --git a/tgl.h b/tgl.h
index e546503..2444a89 100644
--- a/tgl.h
+++ b/tgl.h
@@ -110,7 +110,7 @@ struct tgl_net_methods {
 #define E_ERROR 0
 #define E_WARNING 1
 #define E_NOTICE 2
-#define E_DEBUG 3
+#define E_DEBUG 6
 
 #define TGL_LOCK_DIFF 1
 
diff --git a/updates.c b/updates.c
index de35a61..a2e2977 100644
--- a/updates.c
+++ b/updates.c
@@ -29,13 +29,13 @@
 void tglu_fetch_pts (void) {
   int p = fetch_int ();
   if (p <= tgl_state.pts) { return; }
-  bl_do_set_pts (tgl_state.pts);
+  bl_do_set_pts (p);
 }
 
 void tglu_fetch_qts (void) {
   int p = fetch_int ();
   if (p <= tgl_state.qts) { return; }
-  bl_do_set_qts (tgl_state.qts);
+  bl_do_set_qts (p);
 }
 
 void tglu_fetch_date (void) {