modify config.dat possible?

[BartSr]

scenario: 10 pcs dallas 1-wire sensor hooked up to esp8266
all worked fine
cable needed to be modfied, still works fine allthough sometimes a NAN error.
it appears that I cannot update a device (to other 'longer' interval time)
after update and once submitted sensor serialnumber is gone.

As I have a config.dat file, is it possible to modify that one?
If yes how?

-Bart

[TD-er]

I wonder why it doesnt save the settings.
Is your file system nearly full? As that can lead to strange issues when saving.

Anyway it is best to backup your settings file ASAP before making more changes as it can get corrupted when such silent errors occur.
Silent as in I also don't get any errors while trying to save to a nearly full (or highly fragmented) file system.

You can also try to reboot as that will call the garbage collector before mounting the file system.

[BartSr]

TD-er,
I flashed an other esp8266 than uploaded the config.dat (which I use to have from most ESP's)
Also with that one it was not possible to change interval without loosing serialnumber of Dallas sensors.
So I presume it has to do with cabling.
For that I wondered about update config.dat and therafter uploaded the file.