*#7780# - Reset to the original settings; some informations are also deleted and need to be re-entered.
*#7370# - Soft format - this will resets all the phone memory (like re-format a disk); make sure to have full battery charged !
[Green]+[def3]+[*+] during a power on performs a hard format : this will return the phone like you have received; make sure to have full battery charged !
Note: In hard Format Keep holding the 3 buttons while powering on...hold the power button too until it says format or sumthing....
OOPSSSSS!!!!
EDIT
>>>*#7370# will not reformat a N70, but just reset settings. sabi ng isang furom site.
what to do then?
Try the green/3/* thing again (until you get it to work).
- Turn off PIN code requests.
- Charge the phone fully.
- Turn off the phone.
- Remove the memory card (not really needed, but I usually do it to be on the safe side).
- Put the phone on a table (easier to press the keys then, in my opinion).
- Press the three keys and keep them securely down and do not release.
- While the keys are still down, turn the power on.
- Do not release the three keys until you see the prompt for the home city.
If it doesn't work, retry until you get it right. It is easier if you have three hands.