If your Nokia E51 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 E51: 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 our last resort to recover the Nokia E51.
Before making any kind of reset to your Nokia E51 it is highly recommended to charge the Nokia up to at least 80% of its battery.
Estimated time: 5 minutes.
1- First step:
Unlock your Nokia E51 and from the home screen press or type the following code
2- Second step:
Once the code is written, press the call button.
3- Third step:
A message will appear on the screen of your E51 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 E51 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.
1- Unlock your Nokia E51 and from the home screen press or type the following code
2- Once the code is written, press the call button.
3- A message will appear on the screen of your E51 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 E51 phone.
5- After a few seconds the phone will reboot and ask you to enter the date and time settings.
1- Remove the battery from the Nokia E51 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 E51 phone.
4- Wait for the Nokia to start and it will have restored.
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About the device:
Nokia E51 is a mobile/cell phone with dimensions of 114.8 x 46 x 12 mm| 61 cc (4.52 x 1.81 x 0.47 in), a weight of 100 grams, , a screen resolution of 2.0 inches (~23.5% screen-to-body ratio).
It has a processor 369 MHz ARM 11, a RAM memory 96 MB RAM and an internal memory of 130 MB.
The Nokia E51 comes from the factory with the Symbian OS 9.2| Series 60 v3.1 UI operating system.