arduino · TaddyHC · Sep 11, 2025 · Sep 10, 2025
diff --git a/.../tutorials/user-manual/assets/portentaMIDcarrier_c33_mpcie_4gmodem_result_2.png b/.../tutorials/user-manual/assets/portentaMIDcarrier_c33_mpcie_4gmodem_result_2.png
diff --git a/...id-carrier/tutorials/user-manual/assets/portentaMIDcarrier_h7_c33_mpcie_set.png b/...id-carrier/tutorials/user-manual/assets/portentaMIDcarrier_h7_c33_mpcie_set.png
diff --git a/...nta-mid-carrier/tutorials/user-manual/assets/portentaMIDcarrier_mpcie_setup.png b/...nta-mid-carrier/tutorials/user-manual/assets/portentaMIDcarrier_mpcie_setup.png
diff --git a/.../hardware/04.pro/carriers/portenta-mid-carrier/tutorials/user-manual/content.md b/.../hardware/04.pro/carriers/portenta-mid-carrier/tutorials/user-manual/content.md
@@ -659,7 +659,8 @@ To accommodate the power requirements and ensure reliable connectivity, jumper c
 This precaution is necessary to prevent wire overheating and ensure reliable power transmission for the connected Mini PCIe-compatible module, such as Cat.4 modems. A minimum requirement to set the mini PCIe interface with the Portenta Mid Carrier consists of:
 
 - **3V3 PCIE** pin connected to **3V3 BUCK** pin
-- Properly inserted mini PCIe module, e.g., Pro 4G GNSS Module Global (EG25) / Pro 4G EMEA (EC200A-EU) Module
+- **OUT VCC** pin connected to **3V3 BUCK EN** pin
+- Properly inserted mini PCIe module, e.g., [Pro 4G GNSS Module Global (EG25)](https://store.arduino.cc/products/4g-module-global) / [Pro 4G EMEA (EC200A-EU)](https://store.arduino.cc/products/4g-module-emea) Module
 
 ***Please use a 5.0 V external power source when using an Arduino Pro 4G Module (EMEA / GNSS Global) or any other mPCIe modules due to their high power consumption. This is important for maintaining a stable power supply to the Portenta SOM and the carrier, particularly for extended periods of use.***
 
@@ -2502,6 +2503,23 @@ It will show a similar result when the Portenta C33 is used as the core device w
 
 ![Portenta C33 & Pro 4G Module - HTTPClient Example](assets/portentaMIDcarrier_c33_mpcie_4gmodem_result.png)
 
+In case the example encounters a `301` error like the following:
+
+```bash
+<head><title>301 Moved Permanently</title></head>
+```
+
+Try updating the `server[]` and `resource[]` to use a different HTTP endpoint of your preference, or use this testing service:
+
+```
+const char server[]   = "httpbin.org";
+const char resource[] = "/get";
+```
+
+You should see a result similar to the following:
+
+![Portenta C33 & Pro 4G Module - HTTPClient Example](assets/portentaMIDcarrier_c33_mpcie_4gmodem_result_2.png)
+
 You may find additional examples within the library to try various functionalities such as deleting SMS, getting GPS location, and connecting to web servers securely:
 
 - [**HTTPSClient**](https://github.com/arduino-libraries/Arduino_Cellular/blob/main/examples/HTTPSClient/HTTPSClient.ino): Establishes a secure connection to a web server with [*BearSSL*](https://bearssl.org/) and [*ArduinoHttpClient*](https://github.com/arduino-libraries/ArduinoHttpClient).