When switch on n70 displaying Test mode - Nokia N70 Cellular Phone

Mode "A" (Test Mode)
1. While holding down both DPF INHIBIT switch and the parked regeneration switch, turn the key switch to "ON" or "START" position.
2. Mode selection display is indicated on the LCD.
3. Press the parked regeneration switch and the mode indicated on the LCD is changed.
4. If "A" is indicated on the LCD, press the parked regeneration switch for more than 2 seconds.
5. Test mode is selected.
6. If parked regeneration switch is pressed, the display item is changed.
7. Turn off the key switch to finish test mode.

Mode "b" (Error Information Clear Mode)
1. While holding down both DPF INHIBT switch and parked regeneration switch, turn key switch "ON" or "START" position.
2. Mode selection display is indicated on the LCD.
3. Press the parked regeneration switch and the mode indication on the LCD is changed.
4. If "b" is indicated on the LCD, press the parked regeneration switch for more than 2 seconds.
5. Error information Clear mode is selected and the expression "PUSH" is displayed.
6. Press the parked regeneration switch for more than 2 seconds.
7. The expression "OFF" is displayed.
8. Turn off the key switch.
Be sure to clear error information by performing this procedure after servicing is finished.

A Nokia N70 can be unlocked safer and easier using unlock code. An unlock code for a Nokia N70 can be acquired from http://www.unlocking4u.com/nokia-n70/rs6wp9/ at affordable cost.
Here are the steps for unlocking a Nokia N70,
1 - Switch on your Nokia N70 without any sim card.
2 - Don't bother as to what is displayed on your Nokia N70.
3 - Compose #pw+CODE+1#.
4 - The Nokia N70 would then display the message "SIM Restriction Off" and will be unlocked!

Note :For Nokia N70 mobile phones locked to the network Fido or Rogers in Canada follow these instructions :
1 - Switch on your Nokia N70 without any sim card.
2 - Don't bother as to what is displayed on your Nokia N70.
3 - Compose #pw+CODE+7#.
4 - The Nokia N70 would then display the message "SIM Restriction Off" and will be unlocked!

So if you have a blank display or just a white one, replacing the lcd screen should fix the problem.

See the link below for a guide on replacing the N70 lcd screen and links to buy a new one from ebay.

How to Replace the LCD Display Screen on Nokia N70

You can reinstal its internal operating system from your near Nokia service center.

your phone display must replace.first test your phone with a new LCD,in some casesits only depend on the connectors & not need to replacing displays

switch off phone just put out sim then switch on then show off line mode select no after switch off put sim then start

hello,patel.......
reset ur security code..... this wil help u.......
pls enter *#7328748263373738# this wil resets security code....

Default security code is 12345

see you have turn on the list option in display menu
turn it on icon

It is a common problem of NOKIA N70.
Switch off your phone.
Remove the battery & sim card.
After some times (30 minutes) set them again & switch on.
Leave the phone for a while it will automaticly in order.

ist better to use avira 2008 antivirus.. it can clean your n70.. iknow this because we have the same mobile fone. just turn to this link

http://www.4shared.com/network/search.jsp?sortType=1&sortOrder=1&sortmode=2&searchName=avira+sis&searchmode=2&searchName=avira+sis&searchDescription=&searchExtention=&sizeCriteria=atleast&sizevalue=10&start=0