diff --git a/Controls.md b/Controls.md
index 4878033..2071962 100644
--- a/Controls.md
+++ b/Controls.md
@@ -21,7 +21,7 @@ Button actions:
  longpress: quick volume down
 - BTN_CENTER\
  click: start/stop playing\
- dblclick: toggle between PLAYER/PLAYLIST mode\
+ dblclick: switch SD/WEB mode\
  longpress: toggle between PLAYER/PLAYLIST mode
 - BTN_RIGHT\
  click: volume up\
@@ -35,7 +35,10 @@ Button actions:
  click: without display - prev station, with display - move down\
  dblclick: doing nothing\
  longpress: with display - quick move down
-
+- BTN_MODE\
+ click: switch SD/WEB mode\
+ longpress: go to sleep
+ 
 ---
 ### Encoders
 You can connect one or two encoders to replace/complete the buttons. One encoder (without buttons) is enough to control the device.
diff --git a/README.md b/README.md
index c5842a5..9bdaa80 100644
--- a/README.md
+++ b/README.md
@@ -142,6 +142,16 @@ https://www.aliexpress.com/item/33009687492.html
 | 5V | +5V | - |
 | DGND | GND | - |
 
+##### SD CARD
+| Display | ESP-32 | myoptions.h |
+| ------ | ------ | ------ |
+| GND | GND | - |
+| VCC | +5v | - |
+| SCK | 18 | - |
+| MISO | 19 | - |
+| MOSI | 23 | - |
+| CS | 255* | SDC_CS |
+
 _\#\# Important! You must choose between I2S DAC and VS1053 by disabling the second module in the settings (see below)_
 ##### Nextion Displays
 | Display | ESP-32 | myoptions.h |
@@ -301,6 +311,15 @@ Work is in progress...
 
 ---
 ## Version history
+#### v0.8.901
+**!!! a [full update](#update-over-web-interface) with Sketch data upload is required. After updating please press CTRL+F5 in browser !!!** \
+**Please backup playlist.csv and wifi.csv before updating.**
+- added SD Card support (more info in [connection table](#connection-tables) and [exsamples/myoptions.h](https://github.com/e2002/yoradio/blob/main/exsamples/myoptions.h))
+- added MODE button to switch SD/WEB modes (more info in [Controls.md](https://github.com/e2002/yoradio/blob/main/Controls.md))
+- asterisk on the remote control now switches SD/WEB modes
+- double click BTN_CENTER and ENC_BTNB now toggles SD/WEB modes
+- bug fixes
+
 #### v0.8.173
 - bootlog added
 - fixed work of start/stop button in configurations with DSP_DUMMY
diff --git a/exsamples/myoptions.h b/exsamples/myoptions.h
index 22a47c2..47107ff 100644
--- a/exsamples/myoptions.h
+++ b/exsamples/myoptions.h
@@ -74,7 +74,9 @@ The connection tables are located here https://github.com/e2002/yoradio#connecti
 
 /*  SDCARD  */
 /*  MISO is the same as D0, MOSI is the same as D1 */
-//#define SDC_SPI               18, 19, 23     /* SDCARD SPI pins (SCK, MISO, MOSI) */
+/*  SD VSPI PINS. SD SCK must be connected to pin 18
+                  SD MISO must be connected to pin 19
+                  SD MOSI must be connected to pin 23  */
 //#define SDC_CS                255            /* SDCARD CS pin */
 
 /*  ENCODER2  */
@@ -95,6 +97,8 @@ The connection tables are located here https://github.com/e2002/yoradio#connecti
 //#define BTN_LONGPRESS_LOOP_DELAY    200     /*  Delay between calling DuringLongPress event */
 //#define BTN_CLICK_TICKS    300              /*  Event Timing https://github.com/mathertel/OneButton#event-timing */
 //#define BTN_PRESS_TICKS    500              /*  Event Timing https://github.com/mathertel/OneButton#event-timing */
+
+//#define BTN_MODE              255           /*  MODE switcher  */
 /******************************************/
 
 /*  LCD DISPLAY 1602  */
diff --git a/yoRadio/src/core/config.cpp b/yoRadio/src/core/config.cpp
index 2abf38d..f126a95 100644
--- a/yoRadio/src/core/config.cpp
+++ b/yoRadio/src/core/config.cpp
@@ -9,7 +9,6 @@ Config config;
 #if DSP_HSPI || TS_HSPI || VS_HSPI || SD_HSPI
 SPIClass  SPI2(HSPI);
 #endif
-//SPIClass  SDSPI(VSPI);
 
 void u8fix(char *src){
   char last = src[strlen(src)-1]; 
@@ -24,7 +23,6 @@ void Config::init() {
   eepromRead(EEPROM_START, store);
   if (store.config_set != 4262) setDefaults();
   backupLastStation = store.lastStation;
-  Serial.print("Config::init, backupLastStation=\t"); Serial.println(backupLastStation);
   if(store.play_mode==80) store.play_mode=0b100;
   sdSnuffle = bitRead(store.play_mode, 2);
   store.play_mode = store.play_mode & 0b11;
@@ -37,10 +35,6 @@ void Config::init() {
   ssidsCount = 0;
   sdResumePos = 0;
   if(SDC_CS!=255){
-    //pinMode(SDC_CS, OUTPUT);      digitalWrite(SDC_CS, HIGH);
-    //SDSPI.begin(SDC_SPI);
-    //SDSPI.setFrequency(1000000);
-    //SDSPI.setFrequency(100000);
     if(!SD.begin(SDC_CS)){
       store.play_mode=PM_WEB;
       Serial.println("##[ERROR]#\tCard Mount Failed");
diff --git a/yoRadio/src/core/display.cpp b/yoRadio/src/core/display.cpp
index c84ac35..94c8a3a 100644
--- a/yoRadio/src/core/display.cpp
+++ b/yoRadio/src/core/display.cpp
@@ -332,7 +332,9 @@ void Display::_layoutChange(bool played){
     }
   }
 }
-    
+#ifndef DSP_QUEUE_TICKS
+  #define DSP_QUEUE_TICKS 8
+#endif
 void Display::loop() {
   if(_bootStep==0) {
     _pager.begin();
@@ -345,7 +347,7 @@ void Display::loop() {
   nextion.loop();
 #endif
   requestParams_t request;
-  if(xQueueReceive(displayQueue, &request, 5)){
+  if(xQueueReceive(displayQueue, &request, DSP_QUEUE_TICKS)){
     switch (request.type){
       case NEWMODE: _swichMode((displayMode_e)request.payload); break;
       case CLOCK: 
diff --git a/yoRadio/src/core/netserver.cpp b/yoRadio/src/core/netserver.cpp
index 60ae6f6..5619b66 100644
--- a/yoRadio/src/core/netserver.cpp
+++ b/yoRadio/src/core/netserver.cpp
@@ -512,7 +512,6 @@ void NetServer::onWsMessage(void *arg, uint8_t *data, size_t len, uint8_t client
         }
       }
       if (strcmp(cmd, "snuffle") == 0) {
-        Serial.printf("snuffle=%s\t********************\n", val);
         config.setSnuffle(strcmp(val, "true") == 0);
         return;
       }