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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.

-1
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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?
0
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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 ...
2
votes
1answer
217 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 ...
1
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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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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 ...
1
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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 ...
0
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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
51 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 ...
1
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0answers
618 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 ...
1
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1answer
844 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 ...
0
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0answers
50 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
352 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 ...
0
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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.
0
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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 ...
0
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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 ...
0
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0answers
93 views

Problems with two-step verification on a new SIM

I recently purchased a new SIM. When I try to install WhatsApp, it asks for a PIN that was apparently created by the previous owner for two-step verification. What should I do?
0
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1answer
38 views

Infinity loading of centrain Google Apps on Italian SIM

I have OnePlus 5 (Android 8) phone and I have 1 SIM slot with my home SIM and 2 SIM slot with Italian Prepaid card with internet data. I am getting infinity loops when I am using centrain Google apps....
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0answers
237 views

SIM IccId - logged anywhere?

Is there anywhere I can find historical traces of the IccId? By that I mean, something to indicate the identity of the sim card at some point back in time. Ideally, this would be as far back as ...
0
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0answers
797 views

Automatically disable SIM 2 while SIM 1 has signal?

Is it possible (via Tasker or otherwise) to automatically disable a SIM when the other one has a signal, and to similarly re-enable it once the other loses signal?
0
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1answer
827 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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0answers
944 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 ...
1
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1answer
237 views

Can the Verizon Samsung Galaxy S9+ also run T-Mobile?

(This question does not apply to the unlocked version - it applies to the Verizon version specifically) Is the Verizon Galaxy S9 Plus able to also run T-Mobile using its dual sim feature, or is that ...
2
votes
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 ...
2
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0answers
59 views

Moto G4(XT1625)Funny behavior with sim card inserted

I have a Motorola Moto G4(XT1625, Amazon Prime Edition) on US Cellular. Data doesn't work(sim status screen shows connecting or disconnected but never connects), the signal fluctuates somewhat, and ...
1
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1answer
2k views

What is the No Sim card icon for?

On Android 7, when you pull down the top bar drop-down window (Quick Settings) a grid of 3x3 icons appears with tiles like Wifi, screen rotation on/off, Aeroplane mode etc. On my new phone with a new ...
0
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1answer
30 views

A few questions about android 7 on a new phone

Why does my mobile provider only show in the topbar on the lock screen? How can I get it to show on the topbar when unlocked? Also in the drop down menu with the icons for some often used settings I ...
3
votes
1answer
499 views

Access phone without entering SIM PIN

I have a SIM card completely stuck in the SIM slot of my old phone so it's asking me for the SIM PIN every time which I do not know. Opening a Samsung S6 to access the SIM-slot on MB is not the ...
2
votes
1answer
53 views

LTE: Lost/Stolen Phone in another country, didn't receive text/data/voicemails after new SIM?

I had an unfortunate situation occur to me where my phone was pick pocketed out of my pocket while on Vacation out of the country. We decided to not cancel the phone line because doing so would ...
2
votes
3answers
15k views

If someone puts my SIM card into their phone, will they see my text messages?

If someone takes my SIM card and puts it in their phone, will they be able to read my text messages? What will they be able to access in terms of my personal information other than make outgoing ...
0
votes
1answer
13k views

How to remove No SIM found notification (Android 7.1.1 Nougat) [duplicate]

I bought a new phone with Android 7.1.1 Nougat unlocked from Verizon. Since I bought it unlocked, I get a notification that says No SIM found, Tap for more information. It really irritates me ...
0
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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" ...
0
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0answers
231 views

Sony Xperia Z3 - Lollipop - Signal bar disappeared, no SIM would work

I'm experiencing problems with my 2 yo Sony Xperia Z3. Today i've changed the SIM card from polish T-Mobile to Orange (I've been using Orange for alot of time, even this particular SIM, and 1 month ...
0
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1answer
714 views

How would I go about fixing SIM card not registering after flashing a custom ROM made for a clone of my device

So, I have a BLU Life One X, which is a clone of the Micromax Canvas 5 and a few others. I've installed a ROM made for the Canvas 5, after making a bunch of mistakes, including wiping my entire ...
0
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1answer
754 views

SIM contacts do not show up in my lenovo k6

How to show my sim contacts in my cell phone? I want to delete my sim contacts because I have received sms by my sim contacts not google account. Contacts are displayed of google account but not ...
0
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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 ...
0
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0answers
210 views

Problem “Not registered on network”

I have an old Samsung Galaxy Note II. Rooted. One day it went off. When I restarted it, it went to a somehow hybrid state between factory and the status it had before crashing, i.e. I had to ...
1
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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 ...
0
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0answers
46 views

Google tells me my smart phone was in Brazil two days ago, but I've been in California - what could it be?

I'm worried because Google tells me my smart phone was used to access my Google account from Brazil a couple of days ago. But I and my phone have been in the San Francisco Bay Area the whole time. (...
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votes
1answer
67 views

Do simcards leave marks on android phones?

Question: Is there a way that i can find out whats happening? I mean is there a way that i can find a track that she uses another SIM card time to time. Do SIM cards leave any marks on the phone, in ...
0
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1answer
214 views

Get SIM card connection info

If I want to know if I am connected 2G, 3G or 4G, how do I check that on Android? I don't seem to have any default SIM-related app on my phone, nor does the SIM setting screen give much information ...
0
votes
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 ...
0
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1answer
482 views

Read sim data in airplane mode

If I activate airplane mode, then put a sim card in my cellphone. Can system apps and other apps read data from my sim card, like phone number or network provider?
0
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1answer
114 views

Importing contacts from SIM fails in Marshmallow

I tried to import contacts from SIM in Marshmallow phone. But it tells me that no contacts was found on the SIM card. But an old phone had phone numbers on that SIM. Are there more robust play market ...
0
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0answers
430 views

Exporting SMS on sim card to text file

It seems to me like Android comes with the "veiled" idea that management of SMS that may be present on sim card is not so important (and maybe it's true). Anyway, take me, I have to deal with them at ...
0
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1answer
898 views

LG G2 - No SIM and network also after hard reset

I have a problem with my LG G2 (D802). It shows, without reasons, no network signal and no SIM. I do an hard reset but nothing changed. What's the problem?
0
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1answer
255 views

Nexus 5X loses GSM connection permanently while roaming

Sometimes (perhaps once or twice per week), while driving car, using mobile network ("blitzer.de" app) and roaming between different network cells (only cells but same provider), my Nexus 5X (Android ...
1
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0answers
66 views

how can lock or block some SIM carrier on android 4.1.2

have here in my country to types of SIM cards on the carriers, the first is open to the all networks... internet, sms, calls... and a second is all close data , only to call how can i do to close in ...
0
votes
1answer
208 views

No Signal Sign on Samsung S3 GT-I9300 Possibly After Deactivating Mobile Tracker

I have a Samsung Galaxy S3 GT-I9300 since 2012. I've never rooted it. The last app I've installed was a few months ago. I'm running Android 4.3. Yesterday, for the first time ever, I've got "...