diff --git a/cores/esp8266/core_esp8266_main.cpp b/cores/esp8266/core_esp8266_main.cpp
index fbccac508f..56d715cf13 100644
--- a/cores/esp8266/core_esp8266_main.cpp
+++ b/cores/esp8266/core_esp8266_main.cpp
@@ -212,6 +212,29 @@ extern "C" void ICACHE_RAM_ATTR app_entry (void)
     return app_entry_custom();
 }
 
+extern "C" void user_pre_init (void)
+{
+// need to get those numbers from board/generator
+// NOT WORKING - need to get numbers from board/generator
+// 4M
+#define SPI_FLASH_SIZE_MAP 4
+#define SYSTEM_PARTITION_RF_CAL_ADDR           (0x400000 - 0x3000 - 0x1000 - 0x1000)
+#define SYSTEM_PARTITION_PHY_DATA_ADDR         (0x400000 - 0x3000 - 0x1000)
+#define SYSTEM_PARTITION_SYSTEM_PARAMETER_ADDR (0x400000 - 0x3000)
+    static const partition_item_t partitions[] = {
+        { SYSTEM_PARTITION_BOOTLOADER, 	0x0, 0x1000},
+        { SYSTEM_PARTITION_RF_CAL, SYSTEM_PARTITION_RF_CAL_ADDR, 0x1000},
+        { SYSTEM_PARTITION_PHY_DATA, SYSTEM_PARTITION_PHY_DATA_ADDR, 0x1000},
+        { SYSTEM_PARTITION_SYSTEM_PARAMETER,SYSTEM_PARTITION_SYSTEM_PARAMETER_ADDR, 0x3000},
+        { SYSTEM_PARTITION_CUSTOMER_BEGIN, 0x1000, 0x8000},
+    };
+    if (!system_partition_table_regist(partitions, sizeof(partitions) / sizeof(partitions[0]), SPI_FLASH_SIZE_MAP))
+    {
+        os_printf("system_partition_table_regist: failed\n");
+        while(1);
+    }
+}
+
 extern "C" void user_init(void) {
     struct rst_info *rtc_info_ptr = system_get_rst_info();
     memcpy((void *) &resetInfo, (void *) rtc_info_ptr, sizeof(resetInfo));
diff --git a/libraries/ESP8266WiFi/keywords.txt b/libraries/ESP8266WiFi/keywords.txt
index 0610a749b4..1e448c345f 100644
--- a/libraries/ESP8266WiFi/keywords.txt
+++ b/libraries/ESP8266WiFi/keywords.txt
@@ -104,6 +104,7 @@ psk	KEYWORD2
 BSSID	KEYWORD2
 BSSIDstr	KEYWORD2
 RSSI	KEYWORD2
+enableInsecureWEP	KEYWORD2
 beginWPSConfig	KEYWORD2
 beginSmartConfig	KEYWORD2
 stopSmartConfig	KEYWORD2
diff --git a/libraries/ESP8266WiFi/src/ESP8266WiFiSTA.cpp b/libraries/ESP8266WiFi/src/ESP8266WiFiSTA.cpp
index 5f2c2c3b05..03744f363c 100644
--- a/libraries/ESP8266WiFi/src/ESP8266WiFiSTA.cpp
+++ b/libraries/ESP8266WiFi/src/ESP8266WiFiSTA.cpp
@@ -86,6 +86,7 @@ static bool sta_config_equal(const station_config& lhs, const station_config& rh
 // -----------------------------------------------------------------------------------------------------------------------
 
 bool ESP8266WiFiSTAClass::_useStaticIp = false;
+bool ESP8266WiFiSTAClass::_useInsecureWEP = false;
 
 /**
  * Start Wifi connection
@@ -127,6 +128,7 @@ wl_status_t ESP8266WiFiSTAClass::begin(const char* ssid, const char *passphrase,
     }
 
     conf.threshold.rssi = -127;
+    conf.open_and_wep_mode_disable = !(_useInsecureWEP || *conf.password == 0);
 
     // TODO(#909): set authmode to AUTH_WPA_PSK if passphrase is provided
     conf.threshold.authmode = AUTH_OPEN;
diff --git a/libraries/ESP8266WiFi/src/ESP8266WiFiSTA.h b/libraries/ESP8266WiFi/src/ESP8266WiFiSTA.h
index 58b76ef5ee..6390ac41e0 100644
--- a/libraries/ESP8266WiFi/src/ESP8266WiFiSTA.h
+++ b/libraries/ESP8266WiFi/src/ESP8266WiFiSTA.h
@@ -83,9 +83,12 @@ class ESP8266WiFiSTAClass {
 
         int32_t RSSI();
 
+        static void enableInsecureWEP (bool enable = true) { _useInsecureWEP = enable; }
+
     protected:
 
         static bool _useStaticIp;
+        static bool _useInsecureWEP;
 
     // ----------------------------------------------------------------------------------------------
     // ------------------------------------ STA remote configure  -----------------------------------
diff --git a/tools/sdk/include/user_interface.h b/tools/sdk/include/user_interface.h
index a7733a9548..e78f2e50db 100644
--- a/tools/sdk/include/user_interface.h
+++ b/tools/sdk/include/user_interface.h
@@ -251,6 +251,7 @@ struct station_config {
                         // with both ssid[] and bssid[] matched. Please check about this.
     uint8 bssid[6];
     wifi_fast_scan_threshold_t threshold;
+    bool open_and_wep_mode_disable; // Can connect to open/wep router by default.
 };
 
 bool wifi_station_get_config(struct station_config *config);
@@ -261,6 +262,9 @@ bool wifi_station_set_config_current(struct station_config *config);
 bool wifi_station_connect(void);
 bool wifi_station_disconnect(void);
 
+void wifi_enable_signaling_measurement(void);
+void wifi_disable_signaling_measurement(void);
+
 sint8 wifi_station_get_rssi(void);
 
 typedef enum {
@@ -427,6 +431,17 @@ typedef enum {
     MODEM_SLEEP_T
 } sleep_type_t;
 
+typedef enum {
+    MIN_SLEEP_T,
+    MAX_SLEEP_T
+} sleep_level_t;
+
+bool wifi_set_sleep_level(sleep_level_t level);
+sleep_level_t wifi_get_sleep_level(void);
+
+bool wifi_set_listen_interval(uint8 interval);
+uint8 wifi_get_listen_interval(void);
+
 bool wifi_set_sleep_type(sleep_type_t type);
 sleep_type_t wifi_get_sleep_type(void);
 
@@ -745,6 +760,68 @@ bool wifi_set_country(wifi_country_t *country);
   */
 bool wifi_get_country(wifi_country_t *country);
 
+typedef enum {
+    SYSTEM_PARTITION_INVALID = 0,
+    SYSTEM_PARTITION_BOOTLOADER,            /* user can't modify this partition address, but can modify size */
+    SYSTEM_PARTITION_OTA_1,                 /* user can't modify this partition address, but can modify size */
+    SYSTEM_PARTITION_OTA_2,                 /* user can't modify this partition address, but can modify size */
+    SYSTEM_PARTITION_RF_CAL,                /* user must define this partition */
+    SYSTEM_PARTITION_PHY_DATA,              /* user must define this partition */
+    SYSTEM_PARTITION_SYSTEM_PARAMETER,      /* user must define this partition */
+    SYSTEM_PARTITION_AT_PARAMETER,
+    SYSTEM_PARTITION_SSL_CLIENT_CERT_PRIVKEY,
+    SYSTEM_PARTITION_SSL_CLIENT_CA,
+    SYSTEM_PARTITION_SSL_SERVER_CERT_PRIVKEY,
+    SYSTEM_PARTITION_SSL_SERVER_CA,
+    SYSTEM_PARTITION_WPA2_ENTERPRISE_CERT_PRIVKEY,
+    SYSTEM_PARTITION_WPA2_ENTERPRISE_CA,
+    
+    SYSTEM_PARTITION_CUSTOMER_BEGIN = 100,  /* user can define partition after here */
+    SYSTEM_PARTITION_MAX
+} partition_type_t;
+
+typedef struct {
+    partition_type_t type;    /* the partition type */
+    uint32_t addr;            /* the partition address */
+    uint32_t size;            /* the partition size */
+} partition_item_t;
+
+/**
+  * @brief     regist partition table information, user MUST call it in user_pre_init()
+  *
+  * @param     partition_table: the partition table
+  * @param     partition_num:   the partition number in partition table
+  * @param     map:             the flash map
+  *
+  * @return  true : succeed
+  * @return false : fail
+  */
+bool system_partition_table_regist(
+        const partition_item_t* partition_table,
+        uint32_t partition_num,
+        uint32_t map
+    );
+
+#if 0 // as of today, arduino core has its own ota api
+/**
+  * @brief     get ota partition size
+  *
+  * @return    the size of ota partition
+  */
+uint32_t system_partition_get_ota_partition_size(void);
+#endif // not using espressif ota
+
+/**
+  * @brief     get partition information
+  *
+  * @param     type:             the partition type
+  * @param     partition_item:   the point to store partition information
+  *
+  * @return  true : succeed
+  * @return false : fail
+  */
+bool system_partition_get_item(partition_type_t type, partition_item_t* partition_item);
+
 #ifdef __cplusplus
 }
 #endif
diff --git a/tools/sdk/lib/compare/sdk-compare-includes b/tools/sdk/lib/compare/sdk-compare-includes
index 22ea262561..a6f6be1571 100755
--- a/tools/sdk/lib/compare/sdk-compare-includes
+++ b/tools/sdk/lib/compare/sdk-compare-includes
@@ -19,7 +19,7 @@ eof
 
 sdk="$1"
 me="$0"
-core=${me%/*}/../../../..
+core=$(cd ${me%/*}/../../../..; pwd)
 
 [ -r "$sdk/lib/libnet80211.a" ] || help "$0"
 
@@ -29,5 +29,5 @@ done | sed \
 	-e 's/^+#ifdef.*cplusplus//g' \
 	-e 's/^+extern "C"//g' \
 	-e 's/^+}$//g' \
-	-e 's/^+#endif//g' \
+	-e 's/^+#endif$//g' \
 	-e 's/^+[ \t]*$//g' \
diff --git a/tools/sdk/lib/compare/sdk-compare-libs b/tools/sdk/lib/compare/sdk-compare-libs
index 8b083c3550..c8a34a20ae 100755
--- a/tools/sdk/lib/compare/sdk-compare-libs
+++ b/tools/sdk/lib/compare/sdk-compare-libs
@@ -88,7 +88,8 @@ search()
 				espmd5=$(md5 "$tmp/lib/$f")
 				if [ "$espmd5" = "$coremd5" ]; then
 					tag=$(git describe --tag)
-					echo "$tag - https://github.com/espressif/ESP8266_NONOS_SDK/commit/$i - $f"
+					date=$(git log $tmp/lib/$f | head -3 | grep ^Date | sed 's,^[^ ]*[ ]*,,g')
+					echo "$tag - https://github.com/espressif/ESP8266_NONOS_SDK/commit/$i - $f - $date"
 					found=true
 					break
 				fi
diff --git a/tools/sdk/lib/fix_sdk_libs.sh b/tools/sdk/lib/fix_sdk_libs.sh
index d0c162d39e..178f08bd2f 100755
--- a/tools/sdk/lib/fix_sdk_libs.sh
+++ b/tools/sdk/lib/fix_sdk_libs.sh
@@ -1,6 +1,8 @@
 #!/bin/bash
 set -e
 
+export PATH=../../xtensa-lx106-elf/bin:$PATH
+
 # Remove mem_manager.o from libmain.a to use custom heap implementation,
 # and time.o to fix redefinition of time-related functions:
 xtensa-lx106-elf-ar d libmain.a mem_manager.o
@@ -13,4 +15,4 @@ xtensa-lx106-elf-objcopy --redefine-sym hostname=wifi_station_hostname eagle_lwi
 xtensa-lx106-elf-objcopy --redefine-sym default_hostname=wifi_station_default_hostname user_interface.o 
 xtensa-lx106-elf-objcopy --redefine-sym default_hostname=wifi_station_default_hostname eagle_lwip_if.o 
 xtensa-lx106-elf-ar r libmain.a eagle_lwip_if.o user_interface.o 
-rm eagle_lwip_if.o user_interface.o
+rm -f eagle_lwip_if.o user_interface.o
diff --git a/tools/sdk/lib/libat.a b/tools/sdk/lib/libat.a
deleted file mode 100644
index 7567719117..0000000000
Binary files a/tools/sdk/lib/libat.a and /dev/null differ
diff --git a/tools/sdk/lib/libc_orig.a b/tools/sdk/lib/libc_orig.a
deleted file mode 100644
index 7241a72a76..0000000000
Binary files a/tools/sdk/lib/libc_orig.a and /dev/null differ
diff --git a/tools/sdk/lib/libcrypto.a b/tools/sdk/lib/libcrypto.a
old mode 100644
new mode 100755
index 1c3feaba43..58a30a4b7f
Binary files a/tools/sdk/lib/libcrypto.a and b/tools/sdk/lib/libcrypto.a differ
diff --git a/tools/sdk/lib/libdriver.a b/tools/sdk/lib/libdriver.a
deleted file mode 100644
index 531ea87270..0000000000
Binary files a/tools/sdk/lib/libdriver.a and /dev/null differ
diff --git a/tools/sdk/lib/libespnow.a b/tools/sdk/lib/libespnow.a
old mode 100644
new mode 100755
index 400d3bd9d5..fe07ba5a20
Binary files a/tools/sdk/lib/libespnow.a and b/tools/sdk/lib/libespnow.a differ
diff --git a/tools/sdk/lib/libjson.a b/tools/sdk/lib/libjson.a
deleted file mode 100644
index e9f365ba1d..0000000000
Binary files a/tools/sdk/lib/libjson.a and /dev/null differ
diff --git a/tools/sdk/lib/liblwip.a b/tools/sdk/lib/liblwip.a
deleted file mode 100644
index e77e304d77..0000000000
Binary files a/tools/sdk/lib/liblwip.a and /dev/null differ
diff --git a/tools/sdk/lib/liblwip2.a b/tools/sdk/lib/liblwip2.a
index 46f6e49691..011b480855 100644
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diff --git a/tools/sdk/lib/liblwip2_1460.a b/tools/sdk/lib/liblwip2_1460.a
index 0928362bf6..8afdf1f074 100644
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diff --git a/tools/sdk/lib/liblwip_536.a b/tools/sdk/lib/liblwip_536.a
deleted file mode 100644
index 5ea340be2e..0000000000
Binary files a/tools/sdk/lib/liblwip_536.a and /dev/null differ
diff --git a/tools/sdk/lib/libmain.a b/tools/sdk/lib/libmain.a
index c0e70cafef..6a8683f4ef 100644
Binary files a/tools/sdk/lib/libmain.a and b/tools/sdk/lib/libmain.a differ
diff --git a/tools/sdk/lib/libnet80211.a b/tools/sdk/lib/libnet80211.a
index d3ecbd68a9..08d187e40c 100644
Binary files a/tools/sdk/lib/libnet80211.a and b/tools/sdk/lib/libnet80211.a differ
diff --git a/tools/sdk/lib/libpp.a b/tools/sdk/lib/libpp.a
index 6135231c79..b70496cb3c 100644
Binary files a/tools/sdk/lib/libpp.a and b/tools/sdk/lib/libpp.a differ
diff --git a/tools/sdk/lib/libpwm.a b/tools/sdk/lib/libpwm.a
deleted file mode 100644
index 1913f1604e..0000000000
Binary files a/tools/sdk/lib/libpwm.a and /dev/null differ
diff --git a/tools/sdk/lib/libsmartconfig.a b/tools/sdk/lib/libsmartconfig.a
old mode 100644
new mode 100755
index c217cc5b98..7ac84c5024
Binary files a/tools/sdk/lib/libsmartconfig.a and b/tools/sdk/lib/libsmartconfig.a differ
diff --git a/tools/sdk/lib/libssl.a b/tools/sdk/lib/libssl.a
deleted file mode 100644
index 6ff625bf6a..0000000000
Binary files a/tools/sdk/lib/libssl.a and /dev/null differ
diff --git a/tools/sdk/lib/libupgrade.a b/tools/sdk/lib/libupgrade.a
deleted file mode 100644
index ee219cbec8..0000000000
Binary files a/tools/sdk/lib/libupgrade.a and /dev/null differ
diff --git a/tools/sdk/lib/libwpa.a b/tools/sdk/lib/libwpa.a
old mode 100644
new mode 100755
index 7ea69a61f4..9671b68843
Binary files a/tools/sdk/lib/libwpa.a and b/tools/sdk/lib/libwpa.a differ
diff --git a/tools/sdk/lib/libwpa2.a b/tools/sdk/lib/libwpa2.a
old mode 100644
new mode 100755
index 1f7aabb688..758c588df8
Binary files a/tools/sdk/lib/libwpa2.a and b/tools/sdk/lib/libwpa2.a differ
diff --git a/tools/sdk/lib/libwps.a b/tools/sdk/lib/libwps.a
old mode 100644
new mode 100755
index 0c3503350a..37749d92b5
Binary files a/tools/sdk/lib/libwps.a and b/tools/sdk/lib/libwps.a differ
diff --git a/tools/sdk/version b/tools/sdk/version
index d7849d9e1b..06e014650a 100644
--- a/tools/sdk/version
+++ b/tools/sdk/version
@@ -1 +1 @@
-v2.1.0-10-g509eae8
\ No newline at end of file
+v2.2.0-28-g89920dc
\ No newline at end of file