1. Press the Blackberry button
and select options
2. Then select Advanced options, then select Service Books
3. Turn phone sideways and this will put the phone into landscape mode
4. Press the Blackberry button
again and select "show keyboard"
5. Now press and hold the !?123 button
until it displays a little lock on it
6. Type the keys !?1234?2?
You should see Legacy Enabled
1. Go to option->advanced options->Service book
2. Press blackberry button and press show keyboard
3. Reorient your phone to landscape to show full keyboard (turn phone sideways)
4. Press and hold [!?123] key for 1 sec to lock it in number mode, then do the following:
press [4]
press [?]
press [2]
press [?]
It should say legacy enabled.