I have a n96i mobile phone from china. i havea problem with the phone i can make 3 or 4 phone calls then i cant make or get any more calls but i have a full signal and i can send and get text messages . network failed comes up on the screen when i try and make calls .

On the main screen type in:
*#06# for checking the IMEI (International Mobile Equipment Identity).
*#7780# reset to factory settings.
*#67705646# This will clear the LCD display(operator logo).
*#0000# To view software version.
*#2820# Bluetooth device address.
*#746025625# Sim clock allowed status.
#pw+1234567890+1# Shows if sim have restrictions.
*#92702689# - takes you to a secret menu where you may find some of the information below:
1. Displays Serial Number.
2. Displays the Month and Year of Manufacture
3. Displays (if there) the date where the phone was purchased (MMYY)
4. Displays the date of the last repair - if found (0000)
5. Shows life timer of phone (time passes since last start)
*#3370# - Enhanced Full Rate Codec (EFR) activation. Increase signal strength, better signal reception. It also help if u want to use GPRS and the service is not responding or too slow. Phone battery will drain faster though.
*#3370* - (EFR) deactivation. Phone will automatically restart. Increase battery life by 30% because phone receives less signal from network.
*#4720# - Half Rate Codec activation.
*#4720* - Half Rate Codec deactivation. The phone will automatically restart
If you forgot wallet code for Nokia S60 phone, use this code reset: *#7370925538#
Note, your data in the wallet will be erased. Phone will ask you the lock code. Default lock code is: 12345
Press *#3925538# to delete the contents and code of wallet.
Unlock service provider: Insert sim, turn phone on and press vol up(arrow keys) for 3 seconds, should say pin code. Press C,then press * message should flash, press * again and 04*pin*pin*pin# \
*#7328748263373738# resets security code.
Default security code is 12345
Change closed caller group (settings >security settings>user groups) to 00000 and ure phone will sound the message tone when you are near a radar speed trap. Setting it to 500 will cause your phone 2 set off security alarms at shop exits, gr8 for practical jokes! (works with some of the Nokia phones.) Press and hold "0" on the main screen to open wap browser. 

if the commands dosent work on your phone may be your phone is not a Nokia Phone sorry to say.....

thanks.

Or after the phone has been on for a while , the circut that detects connection to the network is getting to hot and not detecting a connection , so after the phone has been on for a while a chip that controls the connection is failing. turning off the phone for about 15 min. may enable you to use it again , but only till the chip heats up again then it won't connect again
how long before you can make calls again?

I think this is surely a software problem, since you hav a china phone , it could make a problem like this... you contact to your dealer ,say him to change its software .. it will definitely work again.....

The problem is from the antenna, try to change it after that everything will be fine

Hi, Its the problem with GSM bandwidths.
Which country are you trying to use in?
The signal will be full but the phone wont work. and yes, the SMS work...
Local China phones would work on European bandwidths which do not work in country like USA.
If the phone that you own is Quadraband it should work anywhere.
But according to your problem, it doesnt sound to be quadraband and it is a bandwidth problem. I am sure about this, since I too had this problem, which cannot be solved (coz the hardware is made like that).
:)

Hi.

If this is a china made mobile phone then i would advice you to get it to your phone dealer
to get it checked.
Another solution could be to format your cell as this could be a virus problem.

Hope this helps.
If you have any other question do feel free to ask me.

Regards
Faraz

Hi,
The problem is with the network and not in the mobile........
Dial to your Customer care no and tell your problem.....
They should fix it up...

Have u get these problem in other network simcard also?

Does rebooting the phone helps?
we're looking at a hardware design flaw here, you're lucky you can even get 3 calls. don't ask how many calls i can make.

Replace the battery its a battery problem in your device.
and get checked your phone memory.

thanks.

Just to verify malonejamie, is this an original Nokie made in china or a china cloned n96i? http://www.nokian96i.com/

becuase if not then it sure looks like you may need to have the phone updated...