diff --git a/software/sys_controller/ossc/av_controller.c b/software/sys_controller/ossc/av_controller.c
index 591b54c..07ae972 100644
--- a/software/sys_controller/ossc/av_controller.c
+++ b/software/sys_controller/ossc/av_controller.c
@@ -415,6 +415,9 @@ status_t get_status(tvp_sync_input_t syncinput)
     if (memcmp(&tc.col, &cm.cc.col, sizeof(color_setup_t)))
         tvp_set_gain_offset(&tc.col);
 
+    if (tc.full_vs_bypass != cm.cc.full_vs_bypass)
+        tvp_set_full_vs_bypass(tc.full_vs_bypass);
+
 #ifdef ENABLE_AUDIO
     if ((tc.audio_dw_sampl != cm.cc.audio_dw_sampl) ||
 #ifdef MANUAL_CTS
@@ -964,7 +967,7 @@ int main()
         printf("### DIY VIDEO DIGITIZER / SCANCONVERTER INIT OK ###\n\n");
         sniprintf(row1, LCD_ROW_LEN+1, "OSSC  fw. %u.%.2u" FW_SUFFIX1 FW_SUFFIX2, FW_VER_MAJOR, FW_VER_MINOR);
 #ifndef DEBUG
-        strncpy(row2, "2014-2024  marqs", LCD_ROW_LEN+1);
+        strncpy(row2, "2014-2025  marqs", LCD_ROW_LEN+1);
 #else
         strncpy(row2, "** DEBUG BUILD *", LCD_ROW_LEN+1);
 #endif
diff --git a/software/sys_controller/ossc/avconfig.h b/software/sys_controller/ossc/avconfig.h
index 0f5b79b..52f7d04 100644
--- a/software/sys_controller/ossc/avconfig.h
+++ b/software/sys_controller/ossc/avconfig.h
@@ -137,6 +137,7 @@ typedef struct {
     alt_u8 alc_h_filter;
     alt_u8 alc_v_filter;
     color_setup_t col;
+    alt_u8 full_vs_bypass;
 
     /* Audio settings */
     alt_u8 audio_dw_sampl;
diff --git a/software/sys_controller/ossc/menu.c b/software/sys_controller/ossc/menu.c
index 4d89817..6e45e5d 100644
--- a/software/sys_controller/ossc/menu.c
+++ b/software/sys_controller/ossc/menu.c
@@ -223,6 +223,7 @@ MENU(menu_compatibility, P99_PROTECT({ \
     { LNG("Full TX setup","ﾌﾙTXｾｯﾄｱｯﾌﾟ"),         OPT_AVCONFIG_SELECTION, { .sel = { &tc.full_tx_setup,    OPT_WRAP, SETTING_ITEM(off_on_desc) } } },
     { LNG("Allow TVP HPLL2x","TVP HPLL2xｷｮﾖｳ"), OPT_AVCONFIG_SELECTION, { .sel = { &tc.tvp_hpll2x,   OPT_WRAP, SETTING_ITEM(off_on_desc) } } },
     { "AV3 use alt. RGB",                        OPT_AVCONFIG_SELECTION, { .sel = { &tc.av3_alt_rgb,     OPT_WRAP, SETTING_ITEM(av3_alt_rgb_desc) } } },
+    { "Full VSYNC bypas",                       OPT_AVCONFIG_SELECTION, { .sel = { &tc.full_vs_bypass,   OPT_WRAP,   SETTING_ITEM(off_on_desc) } } },
     { "Default HDMI VIC",                       OPT_AVCONFIG_NUMVALUE,  { .num = { &tc.default_vic,     OPT_NOWRAP, 0, HDMI_1080p50, value_disp } } },
 }))
 
diff --git a/software/sys_controller/tvp7002/tvp7002.c b/software/sys_controller/tvp7002/tvp7002.c
index 96d2a08..4c67046 100644
--- a/software/sys_controller/tvp7002/tvp7002.c
+++ b/software/sys_controller/tvp7002/tvp7002.c
@@ -38,7 +38,8 @@ const ypbpr_to_rgb_csc_t csc_coeffs[] = {
 };
 
 static const alt_u8 Kvco[] = {75, 85, 150, 200};
-static const char *Kvco_str[] = { "Ultra low", "Low", "Medium", "High" };
+static const char* const Kvco_str[] = { "Ultra low", "Low", "Medium", "High" };
+static alt_u8 full_vs_bypass;
 
 static void tvp_set_clamp_type(video_format fmt)
 {
@@ -201,6 +202,7 @@ void tvp_init()
     };
 
     // Set default configuration (skip those which match register reset values)
+    full_vs_bypass = 0;
 
     // Configure external refclk, HPLL generated pclk
     tvp_sel_clk(REFCLK_EXT27, 0);
@@ -267,6 +269,10 @@ void tvp_set_gain_offset(color_setup_t *col) {
     tvp_writereg(TVP_B_FOFFSET_MSB, col->b_f_off);
 }
 
+void tvp_set_full_vs_bypass(alt_u8 enable) {
+    full_vs_bypass = enable;
+}
+
 // Configure H-PLL (sampling rate, VCO gain and charge pump current)
 void tvp_setup_hpll(alt_u16 h_samplerate, alt_u16 pixs_per_line, alt_u16 refclks_per_line, alt_u8 plldivby2)
 {
@@ -447,11 +453,10 @@ void tvp_source_sel(tvp_input_t input, tvp_sync_input_t syncinput, video_format
     else
         tvp_writereg(TVP_MISCCTRL3, 0x00);
 
-#ifdef SYNCBYPASS
-    tvp_writereg(TVP_SYNCBYPASS, 0x03);
-#else
-    tvp_writereg(TVP_SYNCBYPASS, 0x00);
-#endif
+    if ((syncinput > TVP_SOG3) && (syncinput < TVP_CS_A))
+        tvp_writereg(TVP_SYNCBYPASS, full_vs_bypass ? 0x02 : 0x00);
+    else
+        tvp_writereg(TVP_SYNCBYPASS, 0x00);
 
     //TODO:
     //TVP_ADCSETUP
diff --git a/software/sys_controller/tvp7002/tvp7002.h b/software/sys_controller/tvp7002/tvp7002.h
index 3a92300..f89cb48 100644
--- a/software/sys_controller/tvp7002/tvp7002.h
+++ b/software/sys_controller/tvp7002/tvp7002.h
@@ -98,6 +98,8 @@ void tvp_init();
 
 void tvp_set_gain_offset(color_setup_t *col);
 
+void tvp_set_full_vs_bypass(alt_u8 enable);
+
 void tvp_setup_hpll(alt_u16 h_samplerate, alt_u16 pixs_per_line, alt_u16 refclks_per_line, alt_u8 plldivby2);
 
 void tvp_sel_csc(const ypbpr_to_rgb_csc_t *csc);
diff --git a/software/sys_controller_bsp/libhal_bsp.a b/software/sys_controller_bsp/libhal_bsp.a
index 056e5d6..b3002f2 100644
Binary files a/software/sys_controller_bsp/libhal_bsp.a and b/software/sys_controller_bsp/libhal_bsp.a differ