When running Flashwriter, you will be required to enter the W-WAN cellular module.
The following excerpt was taken from the Knowledge Base Article How to identify a Digi TransPort WR series router from its part number (SKU)
You may find the SKU for the Digi TransPort on the bottom of the unit. It will be listed as “PN”. The SKU is also listed on the Home Page of the WebUI of your Digi TransPort under “Part Number”.
The Digi TransPort SKU has the following format:
HH-WSS-PP We are concerned with NN, which is the Network and represents the type of module within the TransPort. Here is a list of the type of cellular module for this two character designation followed by the option you should select for your module when running flashwriter:
* Indicates that, for these modules, you must edit the ini file before doing this procedure.
After you extract the Flashwriter firmware, open the ini file using Notepad or similar.
You need to replace ‘setwanmodule,’ with ‘skipmodule,’ and then save it. Please note the before and after images below.
For instance, if you have a WR21-U92A-DE1-TB, the characters you are concerned with are the ‘U9’. If you look at the chart, under the NN character column, you should find the ‘U9’ characters. In the ‘U9’ row, you will note that this is a Telit HE910 module and you would use option 24 when selecting the Module in the FlashWriter procedure.
After that, please follow the Flashwriter procedure.
Here is the Ethernet procedure: How to upgrade the firmware on a Digi TransPort router using Flashwriter
Here is the Serial procedure: How to Serial Procedure on how to upgrade the firmware on a Digi TransPort router using Flashwriter