Says EXT-L in display, and no funktions any more?

Gwnerally in sharp you cancel H2 doing a reset through code 14. did you do it yet?

From Ext 10 or 11>
Dial feature 00>
Hit the left intercom button twice>
The display will show "System Programming"

To remove the Ext. from group 73
Dial #502>
The display will show 'Group"
Dial 3 for group 73
The display will show "Extension"
Dial the Ext # of the phone that needs to changed
Dial 2 to un-assign the Ext from Group 73

To add the Ext. to group 72
Dial #502>
The display will show 'Group"
Dial 2 for group 72
The display will show "Extension"
Dial the Ext # of the phone that needs to changed
Dial 1 to assign the Ext to Group 72

Dial Feature 00 to exit System Programming and save the changes

Be sure to ask me if you need more information

Press Funktion and then report-activity reports will be displayed press ok.Or you can go to funktion-datarigestration-scroll to reports,press ok,select TX report,select output yes.Then after you send a fax a tx report of the fax you send will be printed out.

Press the funktion and then dataregistration usersettings will be displayed,scroll with the arrows until you get tx settings press set button scroll to tx line speed press set and change it.

1)Press the Additional Funktion button.
2)Press the arrowkeys untill 6 TIMER SETTINGS is displayed Press the OK KEY
3)Confirm that DATE TIME SETTING is displayed and press then the OK key
4)Change the date and time

Press the additional funktion buton,press the arrow keys until 9 system settings is displayed press ok press the arrow again until 5 neywork settings is displayed press ok.TCP/IP settings will be displayed press ok and change the ip to your network adminatrators specifications.

Press the funktion button and then the report button activity report will be displayed in the display press ok.a report for the documents that you send and received will be printed out.

If you whant to switch the tX report permanently on-
Press the funktion button and then the dataregistration button,use the arrows to scroll to Report settings,press ok,select tx report,and change to -output yes,

Then there will print a report for every fax you sent

press funktion,dataregistration,press set,scroll with arrow unit usersettings is displayed on screen,press ok again.scroll until date time is displayed,channge the date and time.

i think u must press 2 funktion keys together to switch off from the test or demo mode
try to check the manual