SOURCE: 5300 master reset code
this will need the attention of the nokia care persons at nokia show rooms.
only they can help you with this
SOURCE: help ME for security code nokia 5300 bb5
Well, by far I know two ways to do this, although I've never done it. I found by change. First one is using a resistor and some program, you watch the video tutorial in youtube (It's in spanish but at least you try looking for something similar).
The other option, and the easier, is using a program that must be stored in the memory card, it resets the code, read more here.
Hope this helps.
SOURCE: hard reset nokia 6620
Turn off the phone
Press 3, * and the green call key together whilst turning on the phone.
It will ask if you wish to reset to factory defaults (this will erase ALL data from the phone), just follow the onscreen prompts.
The default security key is 12345, hope this works for you.
SOURCE: Nokia N79 Phone format
when i open the lock my cell was hang. do not restart whenever u do not the battery to take side.
Warning
Please back up all the data on your Nokia E71 and the memory card before resetting the phone (if you do not know how to back up your personal data on the Nokia E71 give me a shout). There are lots of caseswhere users have reset their phone and realized later that they have lost all their personal data.
How to do a hard reset of Nokia E71
But I do not want to loose my personal data
You might want to restore the factory settings of the Nokia E71 but you might not want to loose the personal data on the phone. This can be done by doing a 'soft reset'.
Warning
Do not do a soft reset without backing up data on your phone and the memory card as backing your phone data is a good practice even if you are doing a 'soft reset'
To do a 'soft reset'
Alternative method for hard reset of Nokia E71
There is alternate method to do a hard reset is prescribed as well. The steps involve
I would like to remind readers again to backup their personal data from the phone and the memory card before trying to do a reset of their Nokia E71.
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