The Nokia n91 is a mobile phone that is known for
its excellent sound quality through headphones and its durability. Due to it
now being a very old phone, not many shops carry out the software and cables to
unlock your Nokia n91. This can be a small problem if you are trying to use a
sim card with a different network provider in a Nokia n91 that is locked to a
different network. There is a special trick that not many people known about to
unlock a Nokia n91 to all networks. We can't say that this works for all
devices because with the newer firmware versions it doesn't work on some Nokia
n91 phones that we have tried to unlock in the past. After all its free so its
worth giving it a go to see if your nokia n91 unlocks to all networks.
1) Enter this code into the keypad *#7370#.
2) Your phone will be reset.
3) Now remove the battery for 10 seconds.
4) Reinsert the battery pack into the phone with
a different provider sim card.
5) It will ask you for a code. Enter this service
code *#89547# while holding down the power and up volume button.
6) The screen on your Nokia n91 will flash three
times quickly and restart. Your Nokia n91 should be unlocked to all uk networks
now.
If this doesn't work, its probably because you
have a newer firmware version on your phone, which Nokia have probably patched
in.
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