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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
45 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
52 views

SIM card issues with Samsung S7 Edge Duos

I was facing a problem, which is my phone not read my SIM card. So I root it and now its working fine. My phone is a Samsung S7 Edge Duos. Now I will not be able to update Android Software; but I ...
0
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0answers
35 views

Use Viber on secondary device without SIM

I only have 1 sim card in my phone but want to activate Viber on my Android tablet. The problem is that the moment I activate Viber on one of the devices the other one automatically logs out. In other ...
0
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0answers
80 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
44 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
37 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
39 views

Sim and network

My phone Samsung s5A says cant sing on network try again phone worked the night before and I have reset the phone did a factory hard reset so not sure what else to do .
0
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0answers
68 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
votes
1answer
32 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
115 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
386 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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0answers
199 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:
0
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0answers
332 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 ...
0
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0answers
33 views

SIM card touble on Galaxy S4

My main phone (S5) died so I switched my SIM card to the galaxy s4. It works fine after boot up for 5 minutes then I get an error that says: The SIM card has Locked. Please Power cycle the device and ...
0
votes
0answers
61 views

Activating Viber mobile from Viber desktop

Some time ago I bought a SIM card to be used only for activating Viber. I used the SIM for activation and gave my Viber ID to my friends only (I did not want my Viber account to be visible to work ...
1
vote
1answer
139 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 ...
0
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0answers
10 views

Lineage: no sim card detected after update [duplicate]

I have just updated my Lineage on Samsung Galaxy Note 3 (hlte I believe) to the latest Lineage nightly and after reboot, it doesn't show a simcard at all, ever. I had the same problem when updating ...
2
votes
1answer
2k 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
votes
0answers
53 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 ...
0
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0answers
54 views

How can I check the reliability of my cell connection for phone calls over an extended period?

I got a new SIM card a few weeks back. Had problems with it, it was frequently dropping off of the network and re-registering: no bars symbol to no bars with spinner symbol to 2 or 3 bars symbol in ...
0
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0answers
258 views

GT-I8262 mobile network not available

Recently my phone fell down and was repaired. Now that I try inserting SIM in the phone,it says mobile network not available. At first I thought if the problem was with my sim so I exchanged with my ...
1
vote
1answer
1k 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
votes
1answer
29 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 ...
2
votes
1answer
251 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
50 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 ...
0
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0answers
4k views

I get this repeated error message “Error in application” which pops up for every 10 seconds on my moto c plus

I get this repeated error message "Error in application" which pops up for every 10 seconds on my moto c plus... Tried reseting the mobile, changed the slot of the sim as well but no use. Could ...
2
votes
3answers
3k 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
6k 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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0answers
26 views

How to prevent my phone from auto-restarting when swapping SIM cards?

I have a rooted Sony Z3 running stock Android 6.0.1. I want to be able to swap SIM cards on the go without waiting for the phone to reboot. Is there an app or some other hack to disable automatic ...
0
votes
1answer
71 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
83 views

String: “VirtualSIM10N” appearing when rebooting the phone

A very uncommon thing is happening to my phone at every restart. There's a warning saying nothing else than "VirtualSIM10N". If I click, the message goes away without issuing any other message. ...
0
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0answers
151 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
377 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
votes
1answer
579 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
votes
1answer
980 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
117 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
vote
2answers
10k 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
36 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. (...
0
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0answers
8k views

Popping up of periodic “Invalid Input” dialog in Android phone

I have literally wasted the whole day trying to figure out what could the problem possibly be , but just couldn't find it. The consequence is that periodically my Android phone (Xiaomi Redmi Note 4) ...
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votes
1answer
63 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
votes
1answer
169 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
1k 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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0answers
217 views

slot 1 sim card not detected error in Android phone

Hi I'm using karbonn titanium s5 plus. Today I'm inserted new sim card in slot 1 then error appeared as "Slot 1sim card not detected." When I use same new sim in slot 2 it work but in my phone slot 2 ...
0
votes
1answer
359 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
votes
1answer
107 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
247 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
votes
1answer
692 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
votes
1answer
227 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
62 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
164 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 "...