Encore merci, j'avais en tête cette solus ( de dernier recours ) en attendant je continue a rechercher un remède
plus précis ...
j'ai trouvé ailleurs que les codes sont inversé (soft et hard ?)
Soft reset (*#7780#) : Restores ini files from rom but preserves user data (photos, 3rd party apps etc).The phone will ask you a confirmation, enter a security code (12345 by default)
Deep Reset (*#7370#) : This reformats completely the C: drive. All applications and files stored on this drive will be lost and clean default files will be rewritten. The phone will ask you a confirmation and enter a security code (12345 by default)
There is another key combination which is used to hard reset the phone (similar to #*7370#). It is useful in some cases, for example when the phone cannot reboot. The trick is by switching off the phone then press and hold Call key (Green key) + * key + 3 key + power button for a couple of seconds.
a++