diff --git a/builder/main.py b/builder/main.py
index d2f8c69..66c44b1 100644
--- a/builder/main.py
+++ b/builder/main.py
@@ -16,7 +16,7 @@ env.SConscript("utils/config.py", exports="env")
 env.SConscript("utils/env.py", exports="env")
 env.SConscript("utils/flash.py", exports="env")
 env.SConscript("utils/libs.py", exports="env")
-env.SConscript("utils/uf2.py", exports="env")
+env.SConscript("utils/ltchiptool.py", exports="env")
 # Vendor-specific library ports
 env.SConscript("libs/flashdb.py", exports="env")
 env.SConscript("libs/lwip.py", exports="env")
@@ -69,7 +69,7 @@ targets = [target_elf]
 if "UF2OTA" in env:
     target_uf2 = env.BuildUF2OTA(target_elf)
     targets.append(target_uf2)
-    env.AddUF2Uploader(target_uf2)
+    env.AddFlashWriter(target_uf2)
 elif "IMG_FW" in env:
     target_fw = env.subst("$IMG_FW")
     env.AddPlatformTarget("upload", target_fw, env["UPLOAD_ACTIONS"], "Upload")
diff --git a/builder/utils/env.py b/builder/utils/env.py
index 80fa673..91a7ff7 100644
--- a/builder/utils/env.py
+++ b/builder/utils/env.py
@@ -74,8 +74,10 @@ def env_add_defaults(env, platform, board):
         VARIANT=board.get("build.variant"),
         LDSCRIPT_SDK=board.get("build.ldscript_sdk"),
         LDSCRIPT_ARDUINO=board.get("build.ldscript_arduino"),
-        # ltchiptool variables
-        LTCHIPTOOL='"${PYTHONEXE}" -m ltchiptool',
+        # ltchiptool config:
+        # -r    output raw log messages
+        # -i 1  indent log messages
+        LTCHIPTOOL='"${PYTHONEXE}" -m ltchiptool -r -i 1',
         # Fix for link2bin to get tmpfile name in argv
         LINKCOM="${LINK} ${LINKARGS}",
         LINKARGS="${TEMPFILE('-o $TARGET $LINKFLAGS $__RPATH $SOURCES $_LIBDIRFLAGS $_LIBFLAGS', '$LINKCOMSTR')}",
diff --git a/builder/utils/uf2.py b/builder/utils/ltchiptool.py
similarity index 94%
rename from builder/utils/uf2.py
rename to builder/utils/ltchiptool.py
index 5155145..59a6c3c 100644
--- a/builder/utils/uf2.py
+++ b/builder/utils/ltchiptool.py
@@ -53,7 +53,7 @@ def env_uf2ota(env, *args, **kwargs):
     env.Execute(" ".join(cmd))
 
 
-def env_uf2upload(env, target):
+def env_flash_write(env, target):
     protocol = env.subst("${UPLOAD_PROTOCOL}")
     actions = []
     # from platform-espressif32/builder/main.py
@@ -61,7 +61,7 @@ def env_uf2upload(env, target):
         # upload via UART
         env["UPLOADERFLAGS_UF2"] = [
             "${UF2OUT}",
-            "uart",
+            "-d",
             "${UPLOAD_PORT}",
             "-b",
             "${UPLOAD_SPEED}",
@@ -79,7 +79,7 @@ def env_uf2upload(env, target):
 
     # add main upload target
     env.Replace(
-        UPLOADER="${LTCHIPTOOL} uf2 upload",
+        UPLOADER="${LTCHIPTOOL} flash write",
         UPLOADCMD="${UPLOADER} ${UPLOADERFLAGS_UF2} ${UPLOADERFLAGS}",
     )
     actions.append(env.VerboseAction("${UPLOADCMD}", "Uploading ${UF2OUT_BASE}"))
@@ -93,4 +93,4 @@ env.Append(
         )
     )
 )
-env.AddMethod(env_uf2upload, "AddUF2Uploader")
+env.AddMethod(env_flash_write, "AddFlashWriter")
diff --git a/platform.json b/platform.json
index 13a361e..e6391f0 100644
--- a/platform.json
+++ b/platform.json
@@ -127,7 +127,7 @@
     },
     "tool-ltchiptool": {
       "type": "uploader",
-      "version": "https://github.com/libretuya/ltchiptool#v1.6.1",
+      "version": "https://github.com/libretuya/ltchiptool#v2.0.2",
       "note": "This is used only for C/C++ code from ltchiptool."
     },
     "tool-openocd": {
diff --git a/platform.py b/platform.py
index 46a97ce..70efed6 100644
--- a/platform.py
+++ b/platform.py
@@ -23,7 +23,7 @@ def check_ltchiptool():
     import ltchiptool
 
     importlib.reload(ltchiptool)
-    if Version(ltchiptool.get_version()) < Version("1.6.0"):
+    if Version(ltchiptool.get_version()) < Version("2.0.2"):
         raise ImportError("Version too old")
 
 
@@ -44,6 +44,9 @@ except (ImportError, AttributeError):
 if dirname(__file__) in sys.path:
     sys.path.remove(dirname(__file__))
 
+# Let ltchiptool know about LT's location
+ltchiptool.util.lt_set_path(dirname(__file__))
+
 libretuya_packages = None
 manifest_default = {"version": "0.0.0", "description": "", "keywords": []}