diff --git a/.idea/runConfigurations/OCD_Boot.xml b/.idea/runConfigurations/OCD_Boot.xml
index 795ddc5..59f6ee9 100644
--- a/.idea/runConfigurations/OCD_Boot.xml
+++ b/.idea/runConfigurations/OCD_Boot.xml
@@ -1,9 +1,10 @@
 <component name="ProjectRunConfigurationManager">
   <configuration default="false" name="OCD Boot" type="com.jetbrains.cidr.embedded.openocd.conf.type" factoryName="com.jetbrains.cidr.embedded.openocd.conf.factory" REDIRECT_INPUT="false" ELEVATE="false" USE_EXTERNAL_CONSOLE="false" EMULATE_TERMINAL="false" PASS_PARENT_ENVS_2="true" PROJECT_NAME="myProject" TARGET_NAME="boot.elf" CONFIG_NAME="BOOT_DEBUG" version="1" RUN_TARGET_PROJECT_NAME="myProject" RUN_TARGET_NAME="boot.elf">
-    <openocd version="1" gdb-port="3333" telnet-port="4444" board-config="board/st_nucleo_g0.cfg" reset-type="RUN" download-type="UPDATED_ONLY">
+    <openocd version="1" gdb-port="3434" telnet-port="4343" board-config="C:\Users\Professional\CLionProjects\qrcode-reader-hardware\utils\board.cfg" reset-type="RUN" download-type="NONE">
       <debugger kind="GDB" isBundled="true" />
     </openocd>
     <method v="2">
+      <option name="ToolBeforeRunTask" enabled="true" actionId="Tool_External Tools_DEBUGER_SELECT_SKUD" />
       <option name="CLION.COMPOUND.BUILD" enabled="true" />
     </method>
   </configuration>
diff --git a/App/app.cpp b/App/app.cpp
index 4bc1859..fed05b1 100644
--- a/App/app.cpp
+++ b/App/app.cpp
@@ -117,7 +117,7 @@ void proximityMessureCompleted(void) {
 VL6180_RangeData_t VL6180_Range;
 uint32_t waitAnswerFromReaderMs = 0;
 #define MAX_WAIT_ANSWER_FROM_GM60 30000
-#define MAX_WAIT_FOR_BOOT_COMMAND 10000
+#define MAX_WAIT_FOR_BOOT_COMMAND 30000
 
 #define DATA_TIMEOUT 500
 uint32_t bootStartMs = 0;
@@ -146,6 +146,8 @@ uint8_t uartTask(void) // return 0 if data received , otherwise return 1
         {
             uint8_t com = stringView[0];
             if (com == ENTER_FIRMWARE_UPDATE) {
+                HAL_UART_Transmit_IT(bridge.getHuart1(), (uint8_t*) &uart1Buf[0], sizeof(sendCommand));
+                HAL_Delay(200);
                 HAL_UART_DeInit(bridge.getHuart1());
                 BootComInit();
                 zummerOff();
diff --git a/Boot/App/blt_conf.h b/Boot/App/blt_conf.h
index b763798..b9c9e93 100644
--- a/Boot/App/blt_conf.h
+++ b/Boot/App/blt_conf.h
@@ -73,7 +73,7 @@
 /** \brief Configure number of bytes in the host->target data packet. */
 #define BOOT_COM_RS232_RX_MAX_DATA       (129)
 /** \brief Select the desired UART peripheral as a zero based index. */
-#define BOOT_COM_RS232_CHANNEL_INDEX     (1)
+#define BOOT_COM_RS232_CHANNEL_INDEX     (0)
 
 
 /****************************************************************************************
diff --git a/Boot/Boot.ioc b/Boot/Boot.ioc
index 937590e..45af959 100644
--- a/Boot/Boot.ioc
+++ b/Boot/Boot.ioc
@@ -11,8 +11,9 @@ Mcu.IP0=CRC
 Mcu.IP1=NVIC
 Mcu.IP2=RCC
 Mcu.IP3=SYS
-Mcu.IP4=USART2
-Mcu.IPNb=5
+Mcu.IP4=USART1
+Mcu.IP5=USART2
+Mcu.IPNb=6
 Mcu.Name=STM32G070CBTx
 Mcu.Package=LQFP48
 Mcu.Pin0=PF0-OSC_IN (PF0)
@@ -56,8 +57,10 @@ PA5.GPIO_Label=READER_EN
 PA5.Locked=true
 PA5.Signal=GPIO_Output
 PB6.Locked=true
+PB6.Mode=Asynchronous
 PB6.Signal=USART1_TX
 PB7.Locked=true
+PB7.Mode=Asynchronous
 PB7.Signal=USART1_RX
 PF0-OSC_IN\ (PF0).Mode=HSE-External-Oscillator
 PF0-OSC_IN\ (PF0).Signal=RCC_OSC_IN
@@ -92,7 +95,7 @@ ProjectManager.StackSize=0x400
 ProjectManager.TargetToolchain=STM32CubeIDE
 ProjectManager.ToolChainLocation=
 ProjectManager.UnderRoot=true
-ProjectManager.functionlistsort=1-SystemClock_Config-RCC-false-LL-false,2-MX_GPIO_Init-GPIO-false-LL-true,3-MX_USART2_UART_Init-USART2-false-LL-true,4-MX_CRC_Init-CRC-false-HAL-true
+ProjectManager.functionlistsort=1-SystemClock_Config-RCC-false-LL-false,2-MX_GPIO_Init-GPIO-false-LL-true,3-MX_USART2_UART_Init-USART2-false-LL-true,4-MX_CRC_Init-CRC-false-HAL-true,5-MX_USART1_UART_Init-USART1-false-LL-true
 RCC.ADCFreq_Value=64000000
 RCC.AHBFreq_Value=64000000
 RCC.APBFreq_Value=64000000
@@ -120,6 +123,9 @@ RCC.USART1Freq_Value=64000000
 RCC.USART2Freq_Value=64000000
 RCC.VCOInputFreq_Value=16000000
 RCC.VCOOutputFreq_Value=128000000
+USART1.BaudRate=9600
+USART1.IPParameters=VirtualMode-Asynchronous,BaudRate
+USART1.VirtualMode-Asynchronous=VM_ASYNC
 USART2.BaudRate=9600
 USART2.IPParameters=VirtualMode-Asynchronous,BaudRate
 USART2.VirtualMode-Asynchronous=VM_ASYNC
diff --git a/Boot/Core/Inc/usart.h b/Boot/Core/Inc/usart.h
index 62d5830..d298a63 100644
--- a/Boot/Core/Inc/usart.h
+++ b/Boot/Core/Inc/usart.h
@@ -36,6 +36,7 @@ extern "C" {
 
 /* USER CODE END Private defines */
 
+void MX_USART1_UART_Init(void);
 void MX_USART2_UART_Init(void);
 
 /* USER CODE BEGIN Prototypes */
diff --git a/Boot/Core/Src/crc.c b/Boot/Core/Src/crc.c
index 3b534b9..f8ad7a0 100644
--- a/Boot/Core/Src/crc.c
+++ b/Boot/Core/Src/crc.c
@@ -26,6 +26,7 @@
 
 
 /* CRC init function */
+
 void HAL_CRC_MspInit(CRC_HandleTypeDef* crcHandle)
 {
 
diff --git a/Boot/Core/Src/gpio.c b/Boot/Core/Src/gpio.c
index c5d597e..88fdba5 100644
--- a/Boot/Core/Src/gpio.c
+++ b/Boot/Core/Src/gpio.c
@@ -39,8 +39,6 @@
         * EVENT_OUT
         * EXTI
      PA11 [PA9]   ------> I2C2_SCL
-     PB6   ------> USART1_TX
-     PB7   ------> USART1_RX
 */
 void MX_GPIO_Init(void)
 {
@@ -72,24 +70,6 @@ void MX_GPIO_Init(void)
   GPIO_InitStruct.Alternate = LL_GPIO_AF_6;
   LL_GPIO_Init(GPIOA, &GPIO_InitStruct);
 
-  /**/
-  GPIO_InitStruct.Pin = LL_GPIO_PIN_6;
-  GPIO_InitStruct.Mode = LL_GPIO_MODE_ALTERNATE;
-  GPIO_InitStruct.Speed = LL_GPIO_SPEED_FREQ_LOW;
-  GPIO_InitStruct.OutputType = LL_GPIO_OUTPUT_PUSHPULL;
-  GPIO_InitStruct.Pull = LL_GPIO_PULL_NO;
-  GPIO_InitStruct.Alternate = LL_GPIO_AF_0;
-  LL_GPIO_Init(GPIOB, &GPIO_InitStruct);
-
-  /**/
-  GPIO_InitStruct.Pin = LL_GPIO_PIN_7;
-  GPIO_InitStruct.Mode = LL_GPIO_MODE_ALTERNATE;
-  GPIO_InitStruct.Speed = LL_GPIO_SPEED_FREQ_LOW;
-  GPIO_InitStruct.OutputType = LL_GPIO_OUTPUT_PUSHPULL;
-  GPIO_InitStruct.Pull = LL_GPIO_PULL_NO;
-  GPIO_InitStruct.Alternate = LL_GPIO_AF_0;
-  LL_GPIO_Init(GPIOB, &GPIO_InitStruct);
-
 }
 
 /* USER CODE BEGIN 2 */
diff --git a/Boot/Core/Src/main.c b/Boot/Core/Src/main.c
index ca3634d..fcc70ec 100644
--- a/Boot/Core/Src/main.c
+++ b/Boot/Core/Src/main.c
@@ -89,6 +89,7 @@ int main(void)
   MX_GPIO_Init();
   MX_USART2_UART_Init();
   MX_CRC_Init();
+  MX_USART1_UART_Init();
   /* USER CODE BEGIN 2 */
   /* Initialize the bootloader application. */
   AppInit();
diff --git a/Boot/Core/Src/usart.c b/Boot/Core/Src/usart.c
index ca34eb4..79e69e6 100644
--- a/Boot/Core/Src/usart.c
+++ b/Boot/Core/Src/usart.c
@@ -24,6 +24,77 @@
 
 /* USER CODE END 0 */
 
+/* USART1 init function */
+
+void MX_USART1_UART_Init(void)
+{
+
+  /* USER CODE BEGIN USART1_Init 0 */
+
+  /* USER CODE END USART1_Init 0 */
+
+  LL_USART_InitTypeDef USART_InitStruct = {0};
+
+  LL_GPIO_InitTypeDef GPIO_InitStruct = {0};
+
+  LL_RCC_SetUSARTClockSource(LL_RCC_USART1_CLKSOURCE_PCLK1);
+
+  /* Peripheral clock enable */
+  LL_APB2_GRP1_EnableClock(LL_APB2_GRP1_PERIPH_USART1);
+
+  LL_IOP_GRP1_EnableClock(LL_IOP_GRP1_PERIPH_GPIOB);
+  /**USART1 GPIO Configuration
+  PB6   ------> USART1_TX
+  PB7   ------> USART1_RX
+  */
+  GPIO_InitStruct.Pin = LL_GPIO_PIN_6;
+  GPIO_InitStruct.Mode = LL_GPIO_MODE_ALTERNATE;
+  GPIO_InitStruct.Speed = LL_GPIO_SPEED_FREQ_LOW;
+  GPIO_InitStruct.OutputType = LL_GPIO_OUTPUT_PUSHPULL;
+  GPIO_InitStruct.Pull = LL_GPIO_PULL_NO;
+  GPIO_InitStruct.Alternate = LL_GPIO_AF_0;
+  LL_GPIO_Init(GPIOB, &GPIO_InitStruct);
+
+  GPIO_InitStruct.Pin = LL_GPIO_PIN_7;
+  GPIO_InitStruct.Mode = LL_GPIO_MODE_ALTERNATE;
+  GPIO_InitStruct.Speed = LL_GPIO_SPEED_FREQ_LOW;
+  GPIO_InitStruct.OutputType = LL_GPIO_OUTPUT_PUSHPULL;
+  GPIO_InitStruct.Pull = LL_GPIO_PULL_NO;
+  GPIO_InitStruct.Alternate = LL_GPIO_AF_0;
+  LL_GPIO_Init(GPIOB, &GPIO_InitStruct);
+
+  /* USER CODE BEGIN USART1_Init 1 */
+
+  /* USER CODE END USART1_Init 1 */
+  USART_InitStruct.PrescalerValue = LL_USART_PRESCALER_DIV1;
+  USART_InitStruct.BaudRate = 9600;
+  USART_InitStruct.DataWidth = LL_USART_DATAWIDTH_8B;
+  USART_InitStruct.StopBits = LL_USART_STOPBITS_1;
+  USART_InitStruct.Parity = LL_USART_PARITY_NONE;
+  USART_InitStruct.TransferDirection = LL_USART_DIRECTION_TX_RX;
+  USART_InitStruct.HardwareFlowControl = LL_USART_HWCONTROL_NONE;
+  USART_InitStruct.OverSampling = LL_USART_OVERSAMPLING_16;
+  LL_USART_Init(USART1, &USART_InitStruct);
+  LL_USART_SetTXFIFOThreshold(USART1, LL_USART_FIFOTHRESHOLD_1_8);
+  LL_USART_SetRXFIFOThreshold(USART1, LL_USART_FIFOTHRESHOLD_1_8);
+  LL_USART_DisableFIFO(USART1);
+  LL_USART_ConfigAsyncMode(USART1);
+
+  /* USER CODE BEGIN WKUPType USART1 */
+
+  /* USER CODE END WKUPType USART1 */
+
+  LL_USART_Enable(USART1);
+
+  /* Polling USART1 initialisation */
+  while((!(LL_USART_IsActiveFlag_TEACK(USART1))) || (!(LL_USART_IsActiveFlag_REACK(USART1))))
+  {
+  }
+  /* USER CODE BEGIN USART1_Init 2 */
+
+  /* USER CODE END USART1_Init 2 */
+
+}
 /* USART2 init function */
 
 void MX_USART2_UART_Init(void)
diff --git a/Boot/loader/backdoor.c b/Boot/loader/backdoor.c
index 4073ac8..60f012f 100644
--- a/Boot/loader/backdoor.c
+++ b/Boot/loader/backdoor.c
@@ -42,7 +42,7 @@
  *         BOOT_BACKDOOR_ENTRY_TIMEOUT_MS to blt_conf.h with your desired backdoor 
  *         open time in milliseconds.
  */
-#define BOOT_BACKDOOR_ENTRY_TIMEOUT_MS  (500)
+#define BOOT_BACKDOOR_ENTRY_TIMEOUT_MS  (5000)
 #endif
 #endif /* BOOT_BACKDOOR_HOOKS_ENABLE == 0 */
 
@@ -168,6 +168,7 @@ void BackDoorCheck(void)
     }
   }
 #endif
+
 } /*** end of BackDoorCheck ***/
 
 
diff --git a/Boot/loader/xcp.c b/Boot/loader/xcp.c
index 8dbbeb4..70f0813 100644
--- a/Boot/loader/xcp.c
+++ b/Boot/loader/xcp.c
@@ -171,6 +171,7 @@ void XcpInit(void)
 ****************************************************************************************/
 blt_bool XcpIsConnected(void)
 {
+
   if (xcpInfo.connected == 0)
   {
     return BLT_FALSE;
diff --git a/utils/board.cfg b/utils/board.cfg
index 82698af..183e683 100644
--- a/utils/board.cfg
+++ b/utils/board.cfg
@@ -1,4 +1,4 @@
-adapter serial "\x34\x00\x48\x00\x0D\x00\x00\x59\x33\x4A\x53\x4E"
+adapter serial "48FF71066567495729231187"
 
 # This is for all ST NUCLEO with any STM32F4. Known boards at the moment:
 # STM32F401RET6
diff --git a/utils/debugger_script.ps1 b/utils/debugger_script.ps1
index 6b0f6b3..2118490 100644
--- a/utils/debugger_script.ps1
+++ b/utils/debugger_script.ps1
@@ -3,10 +3,20 @@ $dir=$PSScriptRoot
 $MyCommand="$dir"+"\stlink\st-info.exe --probe --hot-plug"
 Invoke-Expression -Command $MyCommand | Out-String -OutVariable output
 $DevicesNum=$output.Substring($output.IndexOf("Found") + 7, 1)
+Write-Host -ForegroundColor Yellow -BackgroundColor Blue 'Do you wanna run the script N/Y'
+$key=Read-Host
+if ($key.ToUpper() -notmatch 'Y')
+{
+    exit
+}
 if ($DevicesNum -eq 1)
 {
     $serial=$output.Substring($output.Trim().IndexOf("serial") + 12, 24)
 }
+elseif ($DevicesNum -eq 0)
+{
+    exit
+}
 else
 {
     Write-Host -ForegroundColor Yellow -BackgroundColor Blue 'Press key which number of debugger you wanna use'
@@ -24,7 +34,7 @@ $serial=$serial.ToCharArray()
 $StringForCompare='adapter serial "'
 
 for ($i = 0; $i -lt $serial.Count; $i=$i+2) {
-    $StringForCompare=$StringForCompare.Insert($StringForCompare.Length,"\x$($serial.Get($i))$($serial.Get($i+1))")
+    $StringForCompare=$StringForCompare.Insert($StringForCompare.Length,"$($serial.Get($i))$($serial.Get($i+1))")
 }
 $StringForCompare=$StringForCompare.Insert($StringForCompare.Length,'"')
 $Path = "$dir"+"/board.cfg"