A SIM card is an integrated circuit that securely stores the data used to identify a subscriber within a mobile network.

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9
votes
3answers
6k views

deactivate PIN-request after airplane mode

When switching on the phone, one is by default asked to enter the SIM-PIN -- which is a good security measure, to prevent "strangers" from causing you costs. Now the same applies when returning from ...
12
votes
5answers
198k views

How do I import all contacts from a SIM-card to an Android phone?

My mother have got a HTC Wildfire with Android 2.2. Now I want to import all contacts from her old SIM-card to the phone. I did it and it worked. Then I switched to the new SIM-card, and now when I ...
9
votes
1answer
9k views

Can I use a Motorola Atrix without a SIM card?

My company purchased an Atrix for app development and would like to use it without a SIM card. Unfortunately, on boot it is not possible to get past the "No SIM card. Emergency calls only" screen. ...
11
votes
2answers
8k views

Good idea to transfer all phone numbers from SIM card to google contacts?

I am new to the whole smartphone thing. Currently all of my telephone contacts are on my SIM card. I suspect it makes sense to move all my phone numbers from the SIM card to my Google contacts (i.e. ...
8
votes
1answer
14k views

I changed my sim card - how do I find which app is sending sms messages to my old number?

I recently traveled to another country and I'm using a local prepaid sim card on my Galaxy S2. My prepaid credit was depleted rather quickly, and when I checked the phone record I found out my phone ...
5
votes
3answers
14k views

Android - “SIM card doesn't allow a connection to this network” ERROR

I have a problem with my Xperia X10 (U20i). I purchased it new. It worked fine for a week or so, then I switched to another network operator. When I try to connect automatically it says "Registered on ...
5
votes
1answer
1k views

SIM Card not detected after encrypting device

I have a Samsung Galaxy Pocket Neo (Model GT-S5310B) running Android 4.1.2 The device is not rooted and the update notifier tells me I have the latest available version installed. Today I tried ...
3
votes
3answers
898 views

How do you copy a contact from the SIM card to the phone in order to assign a picture to it

Searching the site here has let me to believe that you cannot assign a picture to a contact which resides on the SIM card ( I am using a Samsung Galaxy S, and that indeed seems to be the case - at ...
5
votes
2answers
5k views

HTC Desire S - Number Unknown Is Shown?

My question is similar to this one, however what would be appropriate solution for HTC Desire S device because it does not allow you to change your phone number on SIM card like Samsung Galaxy does? ...
3
votes
3answers
5k views

How to disable USSD notifications?

On Android 4.2.1, some new stuff has appeared in the notification area. It shows my current balance and has an icon of the "SIM-card menu" app. Also, sometimes, some spammy messages appears (from my ...
2
votes
2answers
48k views

Whatsapp, Keeping the number on the new phone but without the old sim card

Whatsapp, Keeping the number on the new phone but without the old sim card. Ok the situation is I love my old number and to be honest don't want to ask everybody to change my number again and again. ...
1
vote
3answers
37k views

How can I stop my phone sending an SMS every time I insert a SIM card?

I have one Samsung tablet and one Samsung mobile phone. When I insert my Airtel SIM in tablet then it automatically sends one SMS to an unknown number, and when I insert the same SIM card into my ...
1
vote
1answer
11k views

My SIM is not recognized after installing Cyanogenmod; what should I do? [closed]

I've got a Samsung Galaxy S (I9000) which I purchased from the Spanish operator Movistar around two years ago. I have spent most of the day trying to flash it with cyanogenmod 7. TL;DR: Installing ...
0
votes
0answers
203 views

Lenovo A3300-GV TAB Andorid 4.4.2 - No SIM Card - Emergency call only

Using Lenovo A3300-GV TAB Andorid 4.4.2. with Reliance GSM SIM was perfect. Recently I bought new postpaid SIM from Vodafone. Snenario - 1: New vodafone postpaid SIM working fine in others mobile. ...