diff --git a/docs/API_reference/en/iotlib/net.md b/docs/API_reference/en/iotlib/net.md
index dc8c0e01e72bf039102b33ba4a3c0ac2ca35731c..fe49e92d471cb2e448f16b7bd1a9fd23d8be4c2b 100644
--- a/docs/API_reference/en/iotlib/net.md
+++ b/docs/API_reference/en/iotlib/net.md
@@ -205,6 +205,7 @@ This method sets the network mode and roaming configuration.
 >* BC25 series module does not support this method.
 >* EC200U/EC600U/EG915U/EG912U series module does not support the configuration of roaming parameters and only supports network modes GSM, GSM_LTE (automatic) and GSM_LTE (LTE preferred).
 >* EC600E/EC800E series module only supports LTE network mode.  
+>* EC200A series modules are not saved after power failure.
 
 
 
diff --git a/docs/API_reference/en/iotlib/sim.md b/docs/API_reference/en/iotlib/sim.md
index a6705a2b1ad67d6df6f4c8401183f6e11c459fa2..b819b62257f1a212f3e8267e4a28729a0cf44678 100644
--- a/docs/API_reference/en/iotlib/sim.md
+++ b/docs/API_reference/en/iotlib/sim.md
@@ -588,7 +588,7 @@ This method is used to switch SIM cards between SIM cards.
 
 >The modules that support this method are as follows:
 >
->EC600MCN_CC/EC600MCN_LA/EC600MCN_LC/EC600MCN_LE/EC600MCN_LF/EC800MCN_LA/EC800MCN_LC/EC800MCN_LE/EC600ECN_LD/EC800ECN_LD/EG912UGL_AA
+>EC600MCN_CC/EC600MCN_LA/EC600MCN_LC/EC600MCN_LE/EC600MCN_LF/EC800MCN_LA/EC800MCN_LC/EC800MCN_LE/EC800MCN_LF/EC600ECN_LD/EC800ECN_LD/EG912UGL_AA
 
 
 
diff --git a/docs/API_reference/zh/iotlib/net.md b/docs/API_reference/zh/iotlib/net.md
index 95697e5fc7641e236f99b45162bdbe88680f5016..5897256f275e58a3a54d910530abddaff8fbdca7 100644
--- a/docs/API_reference/zh/iotlib/net.md
+++ b/docs/API_reference/zh/iotlib/net.md
@@ -197,7 +197,8 @@ net.setConfig(mode [, roaming])
 >* roaming为可选参数，不支持的平台，该参数可不写
 >* BC25系列不支持此方法
 >* EC200U/EC600U/EG915U/EG912U系列模组不支持漫游参数配置，且仅支持设置网络制式0/5/6/8，<br>其中6/8底层都是都是LTE优先，当设置为8时，查询为6。
->* EC600E/EC800E系列模组仅支持LTE ONLY.
+>* EC600E/EC800E系列模组仅支持LTE ONLY。
+>* EC200A系列模组设置后掉电不保存。
 
 
 
diff --git a/docs/API_reference/zh/iotlib/sim.md b/docs/API_reference/zh/iotlib/sim.md
index 73cf6fbd2a73ba59c4388161b78a5b2e02dcde4f..92b7aa0d3b603a678a483a9e764b2b50061cbcbd 100644
--- a/docs/API_reference/zh/iotlib/sim.md
+++ b/docs/API_reference/zh/iotlib/sim.md
@@ -559,7 +559,7 @@ sim.switchCard(simId)
 
 >支持该方法的模组：
 >
->EC600MCN_CC/EC600MCN_LA/EC600MCN_LC/EC600MCN_LE/EC600MCN_LF/EC800MCN_LA/EC800MCN_LC/EC800MCN_LE/EC600ECN_LD/EC800ECN_LD/EG912UGL_AA
+>EC600MCN_CC/EC600MCN_LA/EC600MCN_LC/EC600MCN_LE/EC600MCN_LF/EC800MCN_LA/EC800MCN_LC/EC800MCN_LE/EC800MCN_LF/EC600ECN_LD/EC800ECN_LD/EG912UGL_AA