how to unistall the module

i have unistall the 5 modules but via mobile phone It stilla show the (only) welcome page.
What i can do to resolve the problem?

The phone may be remembering the last visit to the site. Is it possible to clear cache and cookies on the phone and try another visit?
Hope that helps.

Check that you publish modules in positions of the mobile template.

I have to delete the mobile_templates on the server, because the joomla administrator didn't allow to do it directly.

These templates should be used indirectly via MobileJoomla system plugin.