Connection Guide
Overview
MG Flasher is designed to be used on an Android, iOS or Windows device with an ENET Wi-Fi adapter, which provides the fastest, simplest, and most reliable connection to your vehicle. It eliminates fragile cables and reduces the risk of connection drops during flashing.
A traditional ENET cable is supported, but it should be considered a legacy fallback option for advanced users or troubleshooting scenarios. We are not able to help in troubleshooting connectivity issues.
1. Requirements
Android 7.1+
iOS 10.0+
Windows 10+
ENET Wi-Fi adapter
MG Flasher supports any ENET Wi-Fi Adapter. This includes the adapter sold in our shop, but also adapters sold by other vendors. Please ensure the adapter you are using supports ENET Wi-Fi connectivity.
2. Setup
Plug in the Adapter
Locate your OBD II port (driver footwell)
Insert the ENET Wi-Fi adapter
Connect Your Device
Open Wi-Fi settings on your phone/tablet
Connect to the ENET Wi-Fi network
MG Flasher’s ENET Wi-Fi Default Password: "mgflasher"
Prepare Your Device
Enable Airplane Mode (recommended)
Re-enable Wi-Fi manually
Optionally allow cellular data fallback if your device supports it (for map downloads)
Launch MG Flasher
Open the app
Tap Connect
Your vehicle information should appear after a successful connection
Some devices may have the option to be connected to both the ECU via Wi-Fi and use Cellular Data for internet access if prompted with the follow screen:
Select "Use Cellular Data" for internet access in order to download maps
With this option enabled, some devices may have the ability to be connected to the Internet while still connected to the car (helpful when syncing the app), however this will not always be the case.
Since iOS 15.0, Apple made adjusted network traffic security. The app may ask you to grant a permission for communication with other devices in local network. MG Flasher uses this permission to find the vehicle’s ECU through an ENET adapter. If you notice the permission prompt, please make sure to accept it!
3. Usage
If you have followed along and gotten this far without any problems, your device is now ready to use with MG Flasher. Launch the application and follow the usage instructions in our User Manual.
In most cases, when your device is connected to the ENET adapter, it will not have an internet connection. Please note, that there are sections of the app that require internet connection, and there are sections of the app that require a connection to the car. When an internet connection is required, we recommend disconnecting the device from the ENET adapter in the device settings, and connect to a local Wi-Fi network, or use cellular data.
An Internet Connection is required when checking for support, syncing the app, and downloading/uploading files (files, custom tunes, app logs etc.).
A Car Connection is required when flashing the car, logging the car, or accessing it via the diagnostic menu.
If your vehicle was previously connected to another device (via ENET), please wait until the vehicle goes to sleep (~20min) or reset the FEM/BDC module manually (using E-Sys or disconnect the battery). Once the vehicle has “slept” or had the FEM/BDC reset, please attempt to connect with your phone/tablet once more.
FAQ/Troubleshooting
Q: Error: Unable to establish server connection
A: The app requires an internet connection while it is syncing. Please ensure your phone has an internet connection. This may require the app be disconnected from the car.
Q: Error: could not connect to X.X.X.X
A: Please ensure you have reviewed all the steps in the connection guide. Please try enabling airplane mode, but keeping Wi-Fi enabled. This will help limit disruptions.
ENET Cable Info (Legacy)
Check with the device’s manufacturer if your device is compatible with ethernet connectivity through a USB - Ethernet adapter for ENET cable support. Alternatively, if you are using an ENET Wi-Fi adapter, ensure your device has Wi-Fi connectivity. Here is a convenient table of requirements depending on the connectivity method you choose:
ENET cable – It is strongly recommended to use ENET Wi-Fi connection for its fast speed and to reduce the risk of cables disconnecting
Ethernet to USB adapter if using ENET cable
ENET | Wi-Fi |
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Choose Micro-USB or USB-C adapter to match your device
The Micro-USB plug was replaced on modern devices with USB Type C. Determine which of these two plugs is appropriate for your device and purchase any required adapters with the correct interface.
Left: Micro USB – OTG adapter. Right: USB Type-C OTG adapter.
Left: Micro USB – Ethernet adapter. Middle: Lightning – Ethernet adapter. Right: USB Type-C – Ethernet adapter.
ENET cable (connected through an ethernet adapter to a phone)
We highly recommend purchasing good quality cables from source listed below. Some cables sold on the open market are poor quality/design and could lead to complications during the flashing process.
ENET cables, Ethernet adapters and OTG USB adapters can be purchased on Amazon or eBay.
ENET Cable
Please note, that you must return to your local Wi-Fi or LTE/4G with internet connection to be able to check for support or download/buy new maps and then switch back to the ethernet connection once more for flashing.
Prevent flashing failure from mechanical stress on the USB connection by leaving you device on a flat surface.
To ensure your hardware is properly configured follow the instructions in this section. The first thing you may notice on your Android screen is a notification of MG Flasher requesting permission to access your connected peripheral. You must accept these requests for MG Flasher to connect to your vehicle.
Accept permission request to grant MG Flasher access to your peripheral.iOS users should ensure Flight Mode is enabled and Wi-Fi disabled. The device should be ready to use, if not, configure your device to use an Automatic IP under “Settings” -> “Ethernet”.
Android users must configure the ethernet adapter before first use. Under “Settings” -> “Connections” -> “More Connection Settings” -> “Ethernet” set the Static IP to 169.254.250.250. Also confirm the following; Netmask: 255.255.0.0, DNS Address: 8.8.8.8 and Default gateway: 169.254.250.1. You may also need to disable Wi-Fi when connected with ENET cable.
In your device settings open “Connections” scroll down to “More connection settings” and open “Ethernet”.
Some devices with Android version 13 have problems with setting the static IP configuration using the configuration above. Please ensure your device have installed all software updates provided by the manufacturer before attempting to connect to avoid confusion.