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Questions tagged [sim-card]

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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1answer
2k views

Can't connect to mobile network on Sony Xperia Z Ultra

Device: Sony Xperia Z Ultra Carrier: The Peoples Operator (Same issue when tested with EE as well) Android Version: 5.0 Lolipop I recently lost the SIM card tray for my device, and Sony sent me out ...
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1answer
2k views

Can't save contacts in Sony Xperia

I have a Sony Xperia with Android OS 4.0.4. Until recently it worked fine but now my SIM contacts are all gone. I can't save in sim either. While saving in contacts I used to get option whether to ...
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1answer
1k views

Sim change alert on galaxy s8?

How do i enable sms alert for sim change on my samsung galaxy s8? I recently jumped from galaxy s3 to s8. S3 had this neat feature called "SIM change alert" where you can enter a few phone numbers ...
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1answer
821 views

Iam using Lenovo vibe k5 in my phone screen always message pop up sim tool kit error

Pls tell me how to resolve this issue my phone screen always message pop up Sim tool kit error in application i fed up of this issue:
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1answer
4k views

Viber already on PC and want to install on android without SIM

I already have a viber installed on my PC and want to install on my android now. Want to use the same old mobile number with viber but I cannot receive SMS on that old number. How to activate viber ...
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1answer
48k views

Copy contacts from Google to SIM card

I have recently got my SIM card replaced, and lost all contacts as a result. I was wondering if there is a way to copy them from Google Contacts to the SIM card. It would type them one by one but it ...
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1answer
117 views

How does AOSP on a dual sim smartphone handle data?

How does AOSP on a dual sim smartphone handle data? Does it provide the option to choose the SIM when I do tethering or use the native hotspot?
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1answer
4k views

Unable to add contact to SIM

I want to add new contact and save it in SIM Card. I use OnePlus One with CyanogenMod 11S, which is on top of Android 4.4.4 and inside I have O2 pay-as-you-go card from UK. When I used Gingerbread ...
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2answers
59k views

How can I backup contacts on a SIM card to my computer?

My brother wants me to backup the data in his SIM card. How can I copy this to my computer without messing up my own contacts?
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2answers
18k views

Saving contacts to SIM / view SIM contacts

I've just bought a new Android phone (Wileyfox Swift 2X) and updated to Android 7.1.2. Up until now I have always saved my contacts to my SIM card, which saved me a great deal of trouble with past ...
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2answers
6k views

Access phone without SIM PIN

Sometimes I want to access my phone without unlocking the SIM cards (yes, two of them, so two PINs). It may be that I just want to play some games, and I know that there is no coverage so I do not ...
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1answer
3k views

Samsung Galaxy S2 'Not Registered on Network'

I have a Samsung Galaxy S2 that I want to sell. I have reset it to factory settings. However, I have a problem. When I bought the phone new, it was on O2. I changed fairly recently to Virgin ...
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1answer
16k views

Accessing SIM Toolkit in Android settings spawns duplicate SIM card entries?

I don't recall ever visiting this menu before. But I tried it today and this heppened: Settings -> Wireless Settings -> Sim & Network Settings -> Click on a sim (SIM 1 or SIM 2, this one is dual ...
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1answer
31 views

Stolen Android Tablet [duplicate]

If a tablet has been stolen, the sim card removed and been factory reset, is it possible, at all, to have it tracked?
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0answers
32 views

How to disable SIM notification telling you your number?

When I reboot my phone, I always get this message from Android: Your number: +XX XXX XXXX XXXX I'm on Android 9. How can I disable it? (I'm not changing SIMs or something, just plain reboot.) To ...
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0answers
46 views

Unable to disable mobile data on both SIMs with Nokia 5

A couple of days ago, I bought a Nokia 5, and for the most part, I have finished setting it up. However, one issue I've come across is that while I'm able to disable mobile data for my first SIM, I am ...
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0answers
31 views

Huge battery power consumption with one particular SIM card

I have a Vodafone SIM card in an Android phone. In that phone, there is a 2000 mAh battery. I had noticed that the battery was discharging very fast, about 2%/hour when idle! At that time, no battery ...
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1answer
205 views

XIAOMI Redmi 6: how to change or remove the pin of the sim?

I have XIAOMI Redmi 6 phone, model M1804C3DG. Android version: 8.1.0, kernel version: 4.9.77+ . There is no options in the menu to remove or change the pin of the sim. I have enabled developers ...
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1answer
1k views

Enable Mobile Data on new SIM Card

The challenge: I am not connecting to the new local mobile network for data after changing SIM cards. Details: - Handset: Samsung Galaxy S6 - Original service provider: Verizon - USA - New/current ...
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1answer
997 views

Ability to disable SIM card (at best periodically)

I don't like the thought of being tracked via my cell phone. Thus I am looking for an easy way to disable my SIM card. I would like a way to automatically turn the SIM on every n minutes to check for ...
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2answers
991 views

Empty SIM contacts list, but they still show up in contact details

I use solely Google contacts as my contacts repository and display only the Google "My Contacts" group in my contacts list. When looking at contacts details, most of them have in the "connection" ...
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5answers
14k views

Could a faulty SIM card cause my android to spontaneously reboot

My android (Sony Xperia 10a) spontaneously reboots on a 1m to 15m cycle. I had a Nokia before and I think it rebooted more often than expected as well. My Google contacts, a SIM and AT&T are ...
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1answer
1k views

No sim card detected?

my SE Xperia Arc S started going crazy today, it didn't detect the sim card, so I've tried reseting the phone to factory settings, but it still wasn't detected, I've also installed a new rom, to no ...
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1answer
1k views

Using a custom Lock Screen does not unlock the SIM (PIN)

When using Hi Locker as my lock screen, my Android Lollipop device does not prompt me for my SIM PIN upon boot -- and leaves the SIM card locked (therefore providing no service). Details: I'm ...
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0answers
943 views

Why SIM Toolkit icon is duplicated (now tripled) in launcher?

Why does my SIM Toolkit icon is duplicated tripled? The second one appeared not so long ago, and it never happened before (I have the phone for more than a year and a half). There wasn't an OS ...
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0answers
35 views

Xperia XZ Premium Dual recognizes Micro SIM cut to fit Nano tray, but not regular Nano SIM cards

Ok, so I've got one headache inducing mind-boggler for y'all today. My phone (Xperia XZ Premium Dual, model number G8142, codename Maple, architecture Yoshino), has a rather odd issue when it comes to ...
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1answer
1k views

HTC desire bravo sim card is always ejecting

I have to hold the card in place while using the phone otherwise it pushes itself out. When troubleshooting the problem, being as gentle as possible by the way, it clicks into place but doesn't catch ...
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2answers
1k views

SIM card removed

My Samsung Galaxy S4 recently started displaying an error saying SIM card removed. Unable to detect your SIM card. Your device will restart to check for your SIM card. There is nothing to do at ...
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1answer
4k views

how to clear phone number and user from about device status - galaxy S5

Getting my Sprint Galaxy S5 ready to sell. I've tried factory reset. Even went into android recovery menu and wiped cache and factory wipe reset. Yet when I go into settings -> about device -> ...
2
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1answer
1k views

SIM is unsupported on Galaxy Y running CM11

There's a problem with my Samsung Galaxy Y S5360 after upgrading from GingerBread to Android KitKat. I followed all the steps starting from downloading CWM, CyanogenMod 11, and the KitKat ROM. And ...
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1answer
2k views

How to bypass “enter SIM PIN” screen on Android Marshmallow?

The phone can't be accessed before PIN code is entered, the only alternative method is to remove the SIM card entirely. I haven't found a key combination that works on this version of Android. Enter ...
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0answers
24 views

Which component of the Android protocol stack performs cellular encryption?

I understand that the SIM Card plays a significant role in generating keys for the encryption and decryption of cellular traffic, but are these keys passed to the Android architecture so that it can ...
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1answer
37 views

What happens if a change the SIM card to my phone?

Will Android add the contacts of the new SIM card to my Google Account? What else could happen?
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0answers
2k 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 ...
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1answer
837 views

Importing the Telegram contacts into the phone book - Android

I have a fairly serious problem. I lost all the numbers in the phone book, breaking the SIM card, but luckily I saw that most of them are stored on telegram. I tried with telegram desktop to export ...
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0answers
50 views

USB tethering without a SIM card

Why isn't this allowed? I'd like to use my brother's old phone to get on the Internet. It's the same model as mine (ZTE ZMAX PRO). He just recently passed away, and his last phone is being returned to ...
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3answers
5k views

WhatsApp: old SIM card but new phone

I have a new phone as my old one was stolen, but I still have the SIM card with the phone number connected to my WhatsApp account. I inserted that SIM card into the new phone, but none of my contacts, ...
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0answers
616 views

International roaming, forbidden networks, hidden sim toolkit on one plus 5T

I have used international roaming many times before with my one plus 5T and my native Vodafone India providers roaming plan. But this time I landed in Germany and it did not work. I've been trying ...
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1answer
3k views

What happens to my WhatsApp account if my carrier sells my number to someone else?

I'm aware that I don't need a SIM card to continue using my WhatsApp account after the initial activation. But say, hypothetically, I went into a pool with my phone inside my pocket and my SIM ...
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2answers
2k views

SIM card Virtualization - Possible?

Is there a way to "virtualize" a SIM card? Say I go to T-Mobile, and get a new phone line. I have a new number (say (123) 456-7890), and a new SIM card (new ICCID). Is there a way to "virtualize" ...
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0answers
49 views

Is it possible to make Android remember the SIM PIN and automatically unlock the SIM upon reboot?

This way the phone could be unlocked and used with the visual pattern. (Or some other mechanism, e.g. fingerprint, face scan, etc.) The SIM card PIN wouldn't have to be repeatedly input after every ...
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1answer
143 views

New SIM activation: Do I need to reboot?

I recently received a new SIM card from the telecommunications service provider I switched to (I kept my mobile number). This is what I have done so far: Went through the "activate SIM online" ...
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1answer
34k views

How to make automatic SIM card selection for specific contacts?

Everytime I call someone I change SIM card to one of them and call from that SIM card. Is it possible to assign a SIM card for each contact, so that when calling a contact the phone select the SIM ...
5
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1answer
3k views

How can you stop your phone from saving contacts to your sim?

I Have a T-Mobile Sidekick 4G. It runs on Gingerbread. I just got my phone and when I first tried to enter a contact I accidentally pressed "Save to Sim" and "Remember This Choice". I really want to ...
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1answer
349 views

Is it safe to remove SD and sim card while phone is powering on and off?

i noticed someone was removing and putting in the SD and sim card while my phone was powering on and off, and i wanted to know if this is safe or if it can cause issues with the phone? Also they were ...
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3answers
1k views

Is it possible to use mobile minutes on a tablet

Is it possible to make phone calls from a tablet and use minutes instead of data? The ultimate goal is to have a tablet (e.g. nexus 7) and a Bluetooth headset and make phone calls without using up ...
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1answer
2k views

Unable to make/receive call from Lenovo TAB2 A10-30 (Lenovo TB2-X30L)

I have a Lenovo TAB2 A10-30. Model Number: Lenovo TB2-X30L Serial Number: XXXXX I can send and receive messages but unable make or receive a calls. I have downloaded and install many phone dialer ...
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0answers
161 views

getting sim tool kit error in lenovo vibe k5 note

how do i stop the pop up which comes up every now and then saying sim tool kit error I have tried clearing cache and data of sim tool kit app but no change.
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1answer
81 views

MMS messages go into a group conversation with sender and my own number instead of the regular SMS conversation

Let's say I have a conversation with Alice. If Alice sends me an MMS, it appears outside of that conversation, as a group conversation with Alice and my own phone number as participants. Could this be ...
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2answers
52 views

Can an Indian GSM phone be used in the USA?

I'm considering buying the Oppo F9 Pro, which has a dual sim GSM slot. I currently have consumer cellular service with a nano GSM sim card. would I be able to import the Indian phone and use it here ...