philips c12 cheats

hi
has anybody tried these/i know the text trick works but not the one for adding £50 on/i left it as it said but nothing happened is this old hat now :cry:
To send free SMS messages on a Philips C12. Type the message and choose to send. As the requesting text comes up hold down the power button and the message will be sent for free!

Secret Codes

*#06# for checking the IMEI (International Mobile Equipment Identity)

If you Put *#06# in the phone and leave it on for 24 hours you will get 50 pounds worth of credit. Works in UK.

To send free SMS messages on a Philips C12. Type the message and choose to send. As the requesting text comes up hold down the power button and the message will be sent for free!

Or you can send free SMS if you have no more talktime.

Phonebook Position
xx# - xx position in Phone Book (e.g. 09#, the number is saved on place 09)