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How to replace an Ewon CD with an Ewon Flexy

21 Jul 2026
This article explains the recommended process to replace an Ewon CD to an Ewon Flexy.
 

APPLICABLE PRODUCTS

Ewon CD

Ewon Flexy

IN THIS ARTICLE

Since the Ewon CD model will be disconnected from Talk2m in 2027, you may need to replace your existing Ewon CD unit with an Ewon Flexy. 

Below is the recommended step‑by‑step migration process:

  1. Download the backup (.tar) file from your Ewon CD 
    Follow the instructions here: https://www.hms-networks.com/support/tech-support/kb-articles/7169629248146-How-to-create-an-Ewon-backup-with-Ebuddy
  2. Edit the backup file 
    Open the .tar file using 7‑Zip or ZipExtractor and modify the parameter LANWANConfig to 8 in the comcfg.txt file.



    After saving and closing the comcfg.txt file, the software will prompt you to save the changes directly into the archive. Click OK to confirm.

     
  3. Save the updated configuration 
    After closing comcfg.txt, the software will prompt you to save the changes directly into the archive. Confirm by clicking OK.
  4. Export the Talk2m registration key 
    In Ecatcher, go to Ewon auto‑registration → Export Key to SD Card to generate the t2m.txt file.


     
  5. Prepare the SD card 
    Copy both the updated backup.tar and the t2m.txt file onto an SD card formatted in FAT32. (Alternatively, you can push the backup to the Flexy using Ebuddy and register the Flexy to Talk2M via the Talk2M wizard in the web interface.)
  6. Insert the SD card into the new Ewon Flexy
     Use a Flexy equipped with an MPI or serial card, depending on the original Ewon CD model.
  7. Wait for the automatic restore 
    The USR LED will blink orange and eventually turn solid green. Remove the SD card; the Flexy will reboot automatically.
  8. Verify Talk2m connection 
    Within 1–2 minutes after reboot, the Flexy will connect to your Talk2M account and appear as Pending in Ecatcher.

  9. Replace the Ewon CD with the Flexy in Ecatcher 
    Follow the instructions here: https://help.ewon.biz/ecatcher/help/en/account-498351.html#ewon-autoregistration-499967