diff --git a/F1:F103/BISS_C_encoders/Makefile b/F1:F103/BISS_C_encoders/Makefile
index 3aa2506..8496007 100644
--- a/F1:F103/BISS_C_encoders/Makefile
+++ b/F1:F103/BISS_C_encoders/Makefile
@@ -6,4 +6,4 @@ LDSCRIPT    ?= stm32f103xB.ld
 DEFINES := -DSTM32F10X_MD
 
 include ../makefile.f1
-include ../../makefile.stm32
+include ../makefile.stm32
diff --git a/F1:F103/BISS_C_encoders/encoders.bin b/F1:F103/BISS_C_encoders/encoders.bin
index dcf8cfb..758d54c 100755
Binary files a/F1:F103/BISS_C_encoders/encoders.bin and b/F1:F103/BISS_C_encoders/encoders.bin differ
diff --git a/F1:F103/BISS_C_encoders/encoders.creator.user b/F1:F103/BISS_C_encoders/encoders.creator.user
index efd9972..3ddf322 100644
--- a/F1:F103/BISS_C_encoders/encoders.creator.user
+++ b/F1:F103/BISS_C_encoders/encoders.creator.user
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <!DOCTYPE QtCreatorProject>
-<!-- Written by QtCreator 17.0.0, 2025-08-24T23:38:47. -->
+<!-- Written by QtCreator 18.0.2, 2026-02-09T20:28:07. -->
 <qtcreator>
  <data>
   <variable>EnvironmentId</variable>
@@ -86,6 +86,7 @@
     <valuelist type="QVariantList" key="ClangTools.SuppressedDiagnostics"/>
     <value type="bool" key="ClangTools.UseGlobalSettings">true</value>
    </valuemap>
+   <value type="int" key="RcSync">0</value>
   </valuemap>
  </data>
  <data>
@@ -163,6 +164,7 @@
      <value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">ProjectExplorer.CustomExecutableRunConfiguration</value>
      <value type="QString" key="ProjectExplorer.RunConfiguration.BuildKey"></value>
      <value type="bool" key="ProjectExplorer.RunConfiguration.Customized">false</value>
+     <value type="QString" key="ProjectExplorer.RunConfiguration.UniqueId"></value>
      <value type="bool" key="RunConfiguration.UseCppDebuggerAuto">true</value>
      <value type="bool" key="RunConfiguration.UseQmlDebuggerAuto">true</value>
     </valuemap>
@@ -197,6 +199,7 @@
     <value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">ProjectExplorer.CustomExecutableRunConfiguration</value>
     <value type="QString" key="ProjectExplorer.RunConfiguration.BuildKey"></value>
     <value type="bool" key="ProjectExplorer.RunConfiguration.Customized">false</value>
+    <value type="QString" key="ProjectExplorer.RunConfiguration.UniqueId"></value>
     <value type="bool" key="RunConfiguration.UseCppDebuggerAuto">true</value>
     <value type="bool" key="RunConfiguration.UseQmlDebuggerAuto">true</value>
    </valuemap>
@@ -207,10 +210,6 @@
   <variable>ProjectExplorer.Project.TargetCount</variable>
   <value type="qlonglong">1</value>
  </data>
- <data>
-  <variable>ProjectExplorer.Project.Updater.FileVersion</variable>
-  <value type="int">22</value>
- </data>
  <data>
   <variable>Version</variable>
   <value type="int">22</value>
diff --git a/F1:F103/BISS_C_encoders/proto.c b/F1:F103/BISS_C_encoders/proto.c
index 4fea9ce..b096ddb 100644
--- a/F1:F103/BISS_C_encoders/proto.c
+++ b/F1:F103/BISS_C_encoders/proto.c
@@ -496,7 +496,7 @@ static errcode_e help(_U_ cmd_e idx, _U_ char*  par){
 void parse_cmd(char *cmd){
     errcode_e ecode = ERR_BADCMD;
     // command and its parameter
-CMDWRn(cmd);
+//CMDWRn(cmd);
     char *cmdstart = omit_spaces(cmd), *parstart = NULL;
     if(!cmdstart) goto retn;
     char *ptr = cmdstart;
diff --git a/F1:F103/BISS_C_encoders/ringbuffer.c b/F1:F103/BISS_C_encoders/ringbuffer.c
index b0ffe8e..d444ec6 100644
--- a/F1:F103/BISS_C_encoders/ringbuffer.c
+++ b/F1:F103/BISS_C_encoders/ringbuffer.c
@@ -15,6 +15,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
+#include <string.h> // memcpy
 #include "ringbuffer.h"
 
 static int datalen(ringbuffer *b){
@@ -57,11 +58,11 @@ int RB_hasbyte(ringbuffer *b, uint8_t byte){
     b->busy = 0;
     return ret;
 }
-
+/*
 // poor memcpy
 static void mcpy(uint8_t *targ, const uint8_t *src, int l){
     while(l--) *targ++ = *src++;
-}
+}*/
 
 // increment head or tail
 TRUE_INLINE void incr(ringbuffer *b, volatile int *what, int n){
@@ -76,9 +77,11 @@ static int read(ringbuffer *b, uint8_t *s, int len){
     int _1st = b->length - b->head;
     if(_1st > l) _1st = l;
     if(_1st > len) _1st = len;
-    mcpy(s, b->data + b->head, _1st);
+    //mcpy(s, b->data + b->head, _1st);
+    memcpy(s, b->data + b->head, _1st);
     if(_1st < len && l > _1st){
-        mcpy(s+_1st, b->data, l - _1st);
+        //mcpy(s+_1st, b->data, l - _1st);
+        memcpy(s+_1st, b->data, l - _1st);
         incr(b, &b->head, l);
         return l;
     }
@@ -132,9 +135,11 @@ static int write(ringbuffer *b, const uint8_t *str, int l){
     if(l > r || !l) return 0;
     int _1st = b->length - b->tail;
     if(_1st > l) _1st = l;
-    mcpy(b->data + b->tail, str, _1st);
+    //mcpy(b->data + b->tail, str, _1st);
+    memcpy(b->data + b->tail, str, _1st);
     if(_1st < l){ // add another piece from start
-        mcpy(b->data, str+_1st, l-_1st);
+        //mcpy(b->data, str+_1st, l-_1st);
+        memcpy(b->data, str+_1st, l-_1st);
     }
     incr(b, &b->tail, l);
     return l;
diff --git a/F1:F103/BISS_C_encoders/usb_dev.c b/F1:F103/BISS_C_encoders/usb_dev.c
index fd596e2..feee2f4 100644
--- a/F1:F103/BISS_C_encoders/usb_dev.c
+++ b/F1:F103/BISS_C_encoders/usb_dev.c
@@ -254,7 +254,12 @@ int USB_sendall(uint8_t ifno){
 int USB_send(uint8_t ifno, const uint8_t *buf, int len){
     if(!buf || !CDCready[ifno] || !len) return FALSE;
     DBG("USB_send");
+    uint32_t T0 = Tms;
     while(len){
+        if(Tms - T0 > DISCONN_TMOUT){
+            break_handler(ifno);
+            return FALSE;
+        }
         if(!CDCready[ifno]) return FALSE;
         IWDG->KR = IWDG_REFRESH;
         int a = RB_write((ringbuffer*)&rbout[ifno], buf, len);
@@ -272,7 +277,12 @@ int USB_send(uint8_t ifno, const uint8_t *buf, int len){
 int USB_putbyte(uint8_t ifno, uint8_t byte){
     if(!CDCready[ifno]) return FALSE;
     int l = 0;
+    uint32_t T0 = Tms;
     while((l = RB_write((ringbuffer*)&rbout[ifno], &byte, 1)) != 1){
+        if(Tms - T0 > DISCONN_TMOUT){
+            break_handler(ifno);
+            return FALSE;
+        }
         if(!CDCready[ifno]) return FALSE;
         IWDG->KR = IWDG_REFRESH;
         if(l == 0){ // overfull
@@ -299,7 +309,7 @@ int USB_sendstr(uint8_t ifno, const char *string){
  * @return amount of received bytes (negative, if overfull happened)
  */
 int USB_receive(uint8_t ifno, uint8_t *buf, int len){
-    chkin(ifno);
+    chkin(ifno); // rxtx_handler could leave last message unwritten if buffer was busy
     if(bufovrfl[ifno]){
         DBG("Buffer overflow");
         DBGs(uhex2str(ifno));
@@ -320,7 +330,7 @@ int USB_receive(uint8_t ifno, uint8_t *buf, int len){
  * @return strlen or negative value indicating overflow (if so, string won't be ends with 0 and buffer should be cleared)
  */
 int USB_receivestr(uint8_t ifno, char *buf, int len){
-    chkin(ifno);
+    chkin(ifno); // rxtx_handler could leave last message unwritten if buffer was busy
     if(bufovrfl[ifno]){
         while(1 != RB_clearbuf((ringbuffer*)&rbin[ifno]));
         bufovrfl[ifno] = 0;
diff --git a/F1:F103/BISS_C_encoders/version.inc b/F1:F103/BISS_C_encoders/version.inc
index d66eb33..00fd981 100644
--- a/F1:F103/BISS_C_encoders/version.inc
+++ b/F1:F103/BISS_C_encoders/version.inc
@@ -1,2 +1,2 @@
-#define BUILD_NUMBER "126"
-#define BUILD_DATE "2025-08-24"
+#define BUILD_NUMBER "130"
+#define BUILD_DATE "2026-02-09"