Factory reset Nokia N91
Nokia N91
How to reset or restore a Nokia N91
If your Nokia N91 smartphone is running very slowly, hanging, you want to bypass the screen lock, or you have a full memory and want to erase everything, or you want to sell or give it away and want to ensure that nobody can access your files and passwords, you can do a factory reset to restore it to its original state like the first day.
There are three types of reset for a Nokia N91: the “soft” reset that restores the phone's settings to their factory state without deleting any files, phone numbers, ringtones or installed applications, the “strong” reset that deletes all the content of the phone, it is a total format of the device including the contacts, ringtones, photos, videos, applications, etc. and finally the “total” reset that should be used when the phone does not start or does not turn on and it would be your last resort to recover the Nokia N91.
Before making any kind of reset to your Nokia N91 it is highly recommended to charge the Nokia up to at least 80% of its battery.
“Soft” reset or “normal” reset
Estimated time: 5 minutes.
1- First step:
Unlock your Nokia N91 and from the home screen press or type the following code *#7780#
2- Second step:
Once the code is written, press the call button.
3- Third step:
A message will appear on the screen of your N91 asking if you want to restore the settings, press “Continue” f you want to continue.
4- Fourth step:
A message will appear asking you to write the security code of the Nokia N91 phone.
5- Fifth step:
After a few seconds the phone will reboot and ask you to enter the date and time settings.
If this method has not worked for you, go to Menu -> Tools -> Settings -> General -> Factory settings.
“Strong” reset or “deep” reset
1- Unlock your Nokia N91 and from the home screen press or type the following code *#7370#
2- Once the code is written, press the call button.
3- A message will appear on the screen of your N91 asking if you want to restore the settings, press “Continue” f you want to continue.
4- A message will appear asking you to write the security code of the Nokia N91 phone.
5- After a few seconds the phone will reboot and ask you to enter the date and time settings.
“Total” reset
1- Remove the battery from the Nokia N91 and put it back into position.
2- Press and hold these three keys at the same time: Green call button, asterisk * and power button.
3- Do not release these three keys until you see the welcome message on the screen of the N91 phone.
4- Wait for the Nokia to start and it will have restored.
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About the device:
Nokia N91 is a mobile/cell phone with dimensions of 113.1 x 55.2 x 22 mm (4.45 x 2.17 x 0.87 in), a weight of 164 grams, , a screen resolution of 2.1 inches| 35 x 41 mm (~22.5% screen-to-body ratio).
It has a processor 220 MHz Dual ARM 9, a RAM memory 64 MB RAM and an internal memory of 4/8 GB.
The Nokia N91 comes from the factory with the Symbian 9.1| Series 60 UI 3rd Edition operating system.
