diff --git a/README.md b/README.md
index 3f5cb02..a77c56a 100644
--- a/README.md
+++ b/README.md
@@ -56,7 +56,7 @@ Wire                | ❗              | ❌
 **OTHER LIBRARIES** |                |
 Wi-Fi STA/AP/Mixed  | ✔️             | ✔️/❌/❌
 Wi-Fi Events        | ✔️             | ❌
-TCP Client (SSL)    | ✔️ (✔️)        | ✔️ (❓)
+TCP Client (SSL)    | ✔️ (✔️)        | ✔️ (❗)
 TCP Server          | ✔️             | ❓
 IPv6                | ❌              | ❌
 HTTP Client (SSL)   | ✔️ (✔️)        | ❓
diff --git a/builder/frameworks/beken-72xx-arduino.py b/builder/frameworks/beken-72xx-arduino.py
index 1084561..fd990d4 100644
--- a/builder/frameworks/beken-72xx-arduino.py
+++ b/builder/frameworks/beken-72xx-arduino.py
@@ -26,6 +26,8 @@ env.Append(
     CPPDEFINES=[
         # LibreTuya configuration
         ("LT_ARD_HAS_WIFI", "1"),
+        # macros
+        ("mbedtls_net_set_nonblock", "net_set_nonblock"),  # mbedtls_net_set_nonblock is commented out in tls_net.c
     ],
     LINKFLAGS=[
         # stdio wrappers (port/printf/printf.c)
diff --git a/builder/frameworks/beken-72xx-sdk.py b/builder/frameworks/beken-72xx-sdk.py
index 7881846..c47668d 100644
--- a/builder/frameworks/beken-72xx-sdk.py
+++ b/builder/frameworks/beken-72xx-sdk.py
@@ -77,6 +77,7 @@ env.Append(
         ("WOLFSSL_BEKEN", env.Cfg("CFG_WPA3")),
         # LwIP options
         ("LWIP_SO_RCVBUF", "1"),  # for ioctl(FIONREAD)
+        "MBEDTLS_KEY_EXCHANGE__SOME__PSK_ENABLED",
     ],
     ASFLAGS=[
         "-mcpu=arm968e-s",