🧾 Description
This article outlines the process for upgrading firmware on Windows CE-based devices using an SD card. This method is useful when a PC connection is not available or when performing field updates.
Environment
- Device OS: Windows CE
Media: SD Card (up to 32MB)
Firmware File: nk.img
Prerequisites
- A compatible SD card (up to 32MB).
The firmware file (nk.img) copied to the root directory of the SD card.
Access to the device’s Command Prompt.
🛠️ Resolution Steps
Prepare the SD Card
- Copy the nk.img firmware file to the root directory of the SD card.
Insert the SD Card
- Insert the SD card into the device’s SD card slot.
Power On the Device
- Reinsert the battery (if removed) and power on the device.
Launch Command Prompt
- On the device, go to:
Start > Programs > Command Prompt
Run the Firmware Update Command
- In the Command Prompt, type the following command:
\windows\fupdate.exe "\Storage Card\nk.img"
Press Enter to execute.
Automatic Restart
- Once the update completes, the device will automatically restart to apply the new firmware.
Additional Notes
- Do not remove the SD card or power off the device during the update process.
Ensure the firmware file is compatible with the specific device model.
Windows CE devices can be updated from SD card. Follow this guide:
Note: before You start, make sure to have an SD-card (up to 32Mb) and the firmware You want to use
- Copy the nk.img file on the SD card
- Insert the SD card in the device
- Put the battery back on and turn on the device
- Launch the Command Prompt on the device (Start-Programs)
- Type the following string: \windows\fupdate.exe "\Storage Card\nk.img"
- At the end of the update the device will automatically restart