Sony Ericsson T250i User Guide - Page 38

I cannot send text messages SMS, I cannot use Internet or MMS, What do these error messages mean?

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Page 38 highlights

I cannot send text messages (SMS) Make sure you have a valid service centre number in your phone. 1 From standby select Menu > Messaging > Settings > Text message > Service centre. The number is shown if it is saved on the SIM card. 2 If there is no number shown, enter the service centre number, including the international "+" sign and country code. 3 Select Save. I cannot use Internet or MMS Make sure you have a phone subscription that supports data transmission, and also the correct settings in your phone. What do these error messages mean? PIN blocked You have entered the wrong PIN code three times. Your SIM is now locked. Unlock your SIM with your PUK code, which is provided together with your PIN code by your network operator. 1 Enter your PUK code and select OK. 2 Enter a new PIN and select OK. 3 Re-enter the new PIN to confirm and select OK. 38 This is the Internet version of the User's guide. © Print only for private use.

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38
I cannot send text messages (SMS)
Make sure you have a valid service centre number in your
phone.
1
From standby select
Menu
>
Messaging
>
Settings
>
Text message
>
Service centre
. The number is shown
if it is saved on the SIM card.
2
If there is no number shown, enter the service centre
number, including the international “+” sign and
country code.
3
Select
Save
.
I cannot use Internet or MMS
Make sure you have a phone subscription that supports
data transmission, and also the correct settings in your
phone.
What do these error messages mean?
PIN blocked
You have entered the wrong PIN code three times. Your
SIM is now locked. Unlock your SIM with your PUK code,
which is provided together with your PIN code by your
network operator.
1
Enter your PUK code and select
OK
.
2
Enter a new PIN and select
OK
.
3
Re-enter the new PIN to confirm and select
OK
.
This is the Internet version of the User’s guide. ' Print only for private use.