Symptom
After editing the serviceinfo.config file on a mobile device, InventoryControl RF gives error "Specified argument was out of the range of valid values" followed by other verbiage.
![](http://dl.waspbarcode.com/wasp/supportfiles/kbimages/ic7/icrf7-spec-arg-out-of-range.png)
Cause
The serviceinfo.config file is not constructed properly. Requirements:
- Sets of two lines of text (PC, then port number). There must be at least one set of two lines (but there can be more).
- Following the text lines, there must be one Enter character. There cannot be any extra Enter characters.
![](http://dl.waspbarcode.com/wasp/supportfiles/kbimages/ic7/ic-serv-info-bad.png)
The extra Enter character results in the error message above. (For clarity, the paragraph symbol indicates an Enter character.)
![](http://dl.waspbarcode.com/wasp/supportfiles/kbimages/ic7/ic-serv-info-good.png)
This file is properly formatted.