Reset a C35xx to factory settings

[CHM1]

How can I reset a C35xx (or C2950) to factory settings ?
Should I delete the config.text in flash: ?

When I configure with Hyperterminal and copy /paste a saved config, some lines in the config which could be inside because of a previous use (eg speed 10) are not overriden with the copy/paste.

Thanks

 

[CHM1]

No matter !
I found the answer in another thread lower.
It's write erase or booting with mode button pressed and deleting flash:config.text file.