Unlock Panasonic EB-GD50
 

Hello,
I can not unlock this old mobile Panasonic EB-GD50 of SFR.
I contacted them, they gave me a 20-digit code, but no longer
the procedure for enter it in the phone.
Browsing the web, I could see that it was sufficient to return the sequence ** 00012 * code # with
no sim card in the phone, but when I get the sequence, ending with #
it nothing happens ... The sequence is displayed, I can enter other numbers as if the code
was not entered ...
No message, same style "code invalid" ...
I also found a code generator which gives a sequence ** 00012 * 22402214 #
Again, nothing happens .....

If a good soul has a solution?

For info: IMEI = 449158876599866

Thanks for your help,
Regards.

pls code for panasonic gd50/sr 449158874703197