diff --git a/client/cmdhw.c b/client/cmdhw.c
index 8c687e232..fc4f4c422 100644
--- a/client/cmdhw.c
+++ b/client/cmdhw.c
@@ -491,7 +491,14 @@ void pm3_version(bool verbose) {
     PacketResponseNG resp;
     clearCommandBuffer();
     SendCommandOLD(CMD_VERSION, 0, 0, 0, NULL, 0);
+#ifdef USART_SLOW_LINK
+    // 10s timeout for slow FPC, e.g. over BT
+    // as this is the very first command sent to the pm3
+    // that initiates the BT connection
+    if (WaitForResponseTimeout(CMD_ACK, &resp, 10000)) {
+#else
     if (WaitForResponseTimeout(CMD_ACK, &resp, 1000)) {
+#endif
 #ifdef __WIN32
         PrintAndLogEx(NORMAL, "\n [ Proxmark3 RFID instrument ]\n");
 #else
diff --git a/client/comms.c b/client/comms.c
index 12157f41e..c52872870 100644
--- a/client/comms.c
+++ b/client/comms.c
@@ -421,7 +421,7 @@ __attribute__((force_align_arg_pointer))
                 PacketResponseOLD rx_old;
                 memcpy(&rx_old, &rx_raw.pre, sizeof(PacketResponseNGPreamble));
                 if ((!uart_receive(sp, ((uint8_t *)&rx_old) + sizeof(PacketResponseNGPreamble), sizeof(PacketResponseOLD) - sizeof(PacketResponseNGPreamble), &rxlen)) || (rxlen != sizeof(PacketResponseOLD) - sizeof(PacketResponseNGPreamble))) {
-                    PrintAndLogEx(WARNING, "Received packet frame error var part too short? %d/%d", rxlen, sizeof(PacketResponseOLD) - sizeof(PacketResponseNGPreamble));
+                    PrintAndLogEx(WARNING, "Received packet OLD frame payload error too short? %d/%d", rxlen, sizeof(PacketResponseOLD) - sizeof(PacketResponseNGPreamble));
                     error = true;
                 }
                 if (!error) {
diff --git a/common/usart.c b/common/usart.c
index 4200fb5fb..3e10d13bf 100644
--- a/common/usart.c
+++ b/common/usart.c
@@ -122,7 +122,14 @@ uint32_t usart_read_ng(uint8_t *data, size_t len) {
 //    uint32_t highest_observed_try = 0;
     // Empirical max try observed: 3000000 / USART_BAUD_RATE
     // Let's take 10x
-    uint32_t maxtry = 10 * (3000000 / USART_BAUD_RATE);
+
+    uint32_t tryconstant = 0;
+#ifdef USART_SLOW_LINK
+    // Experienced up to 13200 tries on BT link even at 460800
+    tryconstant = 50000;
+#endif
+
+    uint32_t maxtry = 10 * (3000000 / USART_BAUD_RATE) + tryconstant;
 
     while (len) {
         uint32_t available = usart_rxdata_available();
diff --git a/include/usb_cmd.h b/include/usb_cmd.h
index a52271d61..38381e97a 100644
--- a/include/usb_cmd.h
+++ b/include/usb_cmd.h
@@ -13,6 +13,9 @@
 #ifndef __USB_CMD_H
 #define __USB_CMD_H
 
+// Use it e.g. when using slow links such as BT
+#define USART_SLOW_LINK
+
 #ifdef _MSC_VER
 typedef DWORD uint32_t;
 typedef BYTE uint8_t;