diff --git a/lib/libesp32/berry/src/be_bytecode.c b/lib/libesp32/berry/src/be_bytecode.c
index e7ba8aaca..90ff79c6f 100644
--- a/lib/libesp32/berry/src/be_bytecode.c
+++ b/lib/libesp32/berry/src/be_bytecode.c
@@ -23,7 +23,7 @@
 #define MAGIC_NUMBER1       0xBE
 #define MAGIC_NUMBER2       0xCD
 #define MAGIC_NUMBER3       0xFE
-#define BYTECODE_VERSION    3
+#define BYTECODE_VERSION    4
 
 #define USE_64BIT_INT       (BE_INTGER_TYPE == 2 \
     || BE_INTGER_TYPE == 1 && LONG_MAX == 9223372036854775807L)
@@ -333,7 +333,6 @@ static int load_head(void *fp)
     res = buffer[0] == MAGIC_NUMBER1 &&
           buffer[1] == MAGIC_NUMBER2 &&
           buffer[2] == MAGIC_NUMBER3 &&
-          buffer[3] <= BYTECODE_VERSION &&
           buffer[4] == vm_sizeinfo();
     if (res) {
         return buffer[3];
@@ -425,7 +424,8 @@ static void load_class(bvm *vm, void *fp, bvalue *v, int version)
         be_incrtop(vm);
         if (load_proto(vm, fp, (bproto**)&var_toobj(value), -3, version)) {
             /* actual method */
-            be_class_method_bind(vm, c, name, var_toobj(value), bfalse);
+            bbool is_method = ((bproto*)var_toobj(value))->varg & BE_VA_METHOD;
+            be_class_method_bind(vm, c, name, var_toobj(value), !is_method);
         } else {
             /* no proto, static member set to nil */
             be_class_member_bind(vm, c, name, bfalse);
@@ -572,7 +572,7 @@ bclosure* be_bytecode_load(bvm *vm, const char *filename)
             "can not open file '%s'.", filename));
     } else {
         int version = load_head(fp);
-        if (version) {
+        if (version == BYTECODE_VERSION) {
             bclosure *cl = be_newclosure(vm, 0);
             var_setclosure(vm->top, cl);
             be_stackpush(vm);
@@ -582,6 +582,8 @@ bclosure* be_bytecode_load(bvm *vm, const char *filename)
             be_fclose(fp);
             return cl;
         }
+        bytecode_error(vm, be_pushfstring(vm,
+            "invalid bytecode version '%s'.", filename));
     }
     bytecode_error(vm, be_pushfstring(vm,
         "invalid bytecode file '%s'.", filename));
diff --git a/lib/libesp32/berry/tools/grammar/berry.bytecode b/lib/libesp32/berry/tools/grammar/berry.bytecode
index 2d71dde22..6b90c2a1d 100755
--- a/lib/libesp32/berry/tools/grammar/berry.bytecode
+++ b/lib/libesp32/berry/tools/grammar/berry.bytecode
@@ -21,7 +21,7 @@ bytecode_file:  -- little endian
 
 header: 8
     magic_number: 3 -- 0xbecdfe (berry code file)
-    version: 2      -- update with file structure definition
+    version: 1      -- 0x03 update with file structure definition
     integer_size: .1
     float_size: .1
     -- reserved space
diff --git a/tasmota/berry/modules/partition.bec b/tasmota/berry/modules/partition.bec
new file mode 100644
index 000000000..6ee8be094
Binary files /dev/null and b/tasmota/berry/modules/partition.bec differ