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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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Can I install an uncertified eSIM profile provisioned by myself on Android?

I would like to set up an SM-DP+ server to provision my own eSIM profiles. These usually get certified by GSMA and are used for large-scale Remote SIM Provisioning, but I would want to use this for ...
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20 views

How do I make WhatsApp access contacts from a specific SIM?

I have two SIM cards, one personal and the other for business. I would like WhatsApp to use contacts in the SIM card that I use for business only rather than bringing all the contacts. Is there a way ...
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How can I tell if an Android device is locked to a specific carrier?

I want to know if an Android tablet is specific to a cellular carrier (T-Mobile, Verizon, etc.). The particular one I have in my hand now is a Samsung Galaxy Tab A, but I have multiple types of ...
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Prevent Sim Status Change (e.g., Airplane mode) to Reset the op_voice_recording_supported_by_mcc flag

I have found out that the OnePlus 7 Pro (and several other OP models) have a built in feature in the OxygenOS (not sure about vanilla Android) where there is a built in call recorder. For some "...
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Sim card not detecting after installing Windows 10 ARM (Renegade project) on poco f1

I have a POCO F1. I read an article about Renegade project : Installing windows 10/11 ARM on Android device". Then, I installed windows 10 ARM on my POCO F1 with dual boot (windows+Android). ...
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2 votes
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Pop-up dialog from the SIM card appears on lockscreen

My SIM carrier occasionally sends ads in the form of pop-up dialog, like the ones you get after entering a USSD code. However, they appear on the lock screen too and will keep the screen awake ...
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165 views

Unable to delete eSIM profile on Google Pixel 3a

I have recently changed phone carriers. I cannot download an eSIM for my new carrier while it is supposed to be compatible with the Pixel 3a. They claim this is because I still have the eSIM profile ...
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Which way of asking for SIM PIN is correct?

I have two Android phones. Both have SIM cards with PINs set, but their behavior is oddly different: The one with Android 4.4.2 asked for SIM PIN only once - the first time I installed the new SIM ...
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1 answer
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Japanese SIM card not connecting to network in US

I have a Samsung Galaxy S8 SM-G950U that I used with Verizon. I moved to Japan and got a Japanese SIM card through SoftBank and used in my Galaxy S8 without a problem. My account has a global roaming ...
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39 views

Recover call recordings from the same SIM

I had a Xiaomi Mi 9, and there was this option to record every call that I answer (without using a 3rd party app!). Now I have a POCO X3 Pro, and I moved the same SIM from the old MI9 to the new POCO, ...
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Is there a way to stop Android messages from network providers?

I receive ads from my network provider via Android pop-ups: Is there a way to disable it? These messages are extremely annoying, I woke up last night due to the brightness of the screen, as these ...
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95 views

How to read and write SIM data?

I know how to view the contacts on a SIM, and the stored SMS via the message app in Android, but I don't know how to view the stored call log history if any. I know other things can be stored as well, ...
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1 answer
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Is a SIM card needed for a remote hard reset through findmymobile.samsung?

The screen of a Samsung phone is broken completely and I want to take it to a repair shop, but before that I prefer to erase all data on it. I have been able to verify that the phone was not ...
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My location get recognized by my sim card

I have an application which find me by my sim card, how is this possible? I didn't give it any Location/Call/messages permission. Also i used VPN but it still recognize my location. How can i edit ...
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Note 10 Plus Stuck with Partial Flight Mode (Faded Blue). What does this mean? Is this an indication of hardware failure?

I haven't yet come across a situation where factory reset didn't resolve the issue. This one is very intriguing to me as I could not conclude why the phone could stay in the partial flight mode (faded ...
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0 answers
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How to make a call from a phone without SIM using a hotspot with SIM?

I would like to use a single SIM by installing a mobile hotspot at home. This mobile hotspot could be a dedicated hotspot device or an older smartphone with hotspot enabled. This hotspot will serve ...
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51 views

How to unlock a Photon Q with an MSL code?

I'm having a strange issue with a Motorola Photon Q. The Photon Q is carrier locked to Sprint but has long since been paid off. I have the IMEI and the MSL code to unlock the device to use with other ...
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No tetwork (sim card doesn't allow connection to this )

Help please. I repaired my phone's imei with xposed and now i have no network connection. When i choose a network it says: sim card doesn't allow connection to this. I put the sim in other phones and ...
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Restore contacts from VCF to SIM Card

I've been trying to restore contacts from a vCard backup I have (VCF file) to the SIM card. So far I managed to do it, but only through an app called "Simple contacts - Easy contact manager" ...
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1 answer
3k views

Can't delete contacts from SIM card

So in an attempt to undo all the [wrong word here] apps do in mixing contacts somehow, I ended up deleting all contacts from the entire phone including the SIM card, to then try to put them back ...
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645 views

Unknown phone number

An app that I need is not recognizing a SIM/Phone number. ...But the problem is not the app: Before we go: I've visitted other forums, but the answers are uneffective, completely unfit, or oriented to ...
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Show SIM Card contacts only

Does anyone know if Android 8 has an option on the Contacts app to show SIM Card contacts only? I'm gonna buy a new phone soon, and I almost forgot about this part. So I wanted to be sure before I ...
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1 answer
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How do I copy contacts from my SIM card to a Moto G8 Power?

Well there's not really more to say about my question apart from: Yes, I've looked for this feature on the Internet and on my phone.
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  • 103
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1 answer
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Are non indian sims work in this mobile?

I recently my Indian fb friend bought a Samsung F41 mobile online. On the package seal, it's written "Indian SIM Cards only". Are non indian sims work in this mobile?
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1 answer
400 views

Blocked SIM card and getting asked for PUK on Lineage OS 17.1

I installed Lineage OS 17.1 on my Samsung Galaxy S3. Everything worked just fine until I put in my SIM card. The first thing which happened after booting was getting directly asked for the PUK code ...
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551 views

"No SIM Card" after flashing custom ROM (Oneplus 7 Pro)

I have an unlocked Oneplus 7 Pro that I just installed Havoc OS on, which stopped the SIM card from being recognized. This SIM card works on both other phones (stock Pixel 2) and this phone with a ...
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1 answer
380 views

Can't use mobile data on non-default sim, even if inactive when the second sim is open call

I'm using OnePlus 7T with dual sim. Sim #1 is my default sim, and Sim #2 is a data sim which I'm using only for mobile data. Obviously, I've defined Sim #1 to be the default sim for calls and sms, and ...
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1 answer
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Telegram does not recognise account after being offline for almost a week due to battery failure

On Sunday, 13th September 2020, the battery of my Motorola Moto G5 broke down and I ordered a new one. Today, on Friday, 18th September 2020, it finally arrived and it works just fine. Several errors, ...
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582 views

Resetting SIM card connection without rebooting phone

Sometimes my phone (running LineageOS 14.1 / Nougat 7.1) will lose proper SIM card access, showing a "No SIM card" or "Invalid card" message and not allowing any cellular network ...
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856 views

How to fix "No SIM" issue after flashing stock ROM?

After using custom ROMs on my Motorola E4 Plus (Nicklaus) I figured out that there's no such custom stable ROM to install, so I recently flashed my device with stock ROM (Motorola Nicklaus MTK (XT1770)...
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2k views

Disable/enable second DualSIM card command

I use the MarcoDroid app to change phone settings depending on events. I want to turn on and off the second sim card depending on the event. I found a command option where I can type the command to ...
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164 views

How do I stop my SIM card from auto-locking while powered on?

I have a set a SIM PIN on the SIM card I use in my Moto E4 Android phone. To answer some anticipated questions in advance: I know my PIN I want the SIM to lock when the system powers down or reboots ...
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2 votes
2 answers
4k views

SIM card not detected on Lineage OS

I installed LineageOS on my OnePlus One (bacon) a few months ago. With Covid-19 lockdown it was weeks before I noticed that the SIM card isn't being detected. I thought it might be damaged, but EE ...
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1 vote
0 answers
131 views

Huawei G7 No network-No service problem

Hy there, I am facing an issue, My Sim card automatically disconnects after some time... And reconnects automatically without doing anything...without even physically bothering the phone. And when it ...
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1 answer
58 views

Manage connectivity of apps to internet of Sim-card vs. wifi

I have a Redmi note 8 android smart-phone, If I use Wifi then all the applications connect to the internet, But in Simcard, some of the applications are not able to connect to the internet. For ...
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2 votes
0 answers
270 views

How to call and SMS from Android smartphone with SIM via internet remotely?

I want to use my phone number when traveling abroad and there is no possibility to setup roaming, etc. So the idea is: I have Android smartphone. I have my SIM inserted in the phone. The phone works ...
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52 views

Connect to carrier directly using sim information without actual simcard

Are there anyway to copy sim card into Android and save the sim information, then use that information to connect to cell towers without having an actual sim card in my phone. Are there any app out ...
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1 answer
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my contacts lost

I moved all contacts to the sim, on Android. now there are no notes or contact photos. no backup exists I moved them back to the phone and still not exist, what can I do to retrieve them?
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Can I use an old SIM from a locked phone in my Redmi?

I've never had a Smartphone that I used as an actual phone with a SIM before. I have a Redmi 6 I bought overseas (Android 9, MIUI 11) that's only been used with Wi-Fi. I just cut short a long overseas ...
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2 votes
0 answers
78 views

"Device is reachable" SMS without SIM

I'm using a Huawei Honor P9 Lite with a German carrier and SIM card. My carrier offers the option to send SMS to me, whenever I miss a call. The other way round, whenever someone does not reach me (...
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75 views

Does Android store information about previous SIM cards?

Does Android store any info about previous SIM cards that have been inserted into the phone? Can the current mobile operator access this info? Can the current mobile operator get my GPS location ...
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3 answers
761 views

How can I transfer all carrier settings from an existing phone to a new phone?

I have been provided a device for a telephone carrier that cannot be joined automatically. When the Sim is inserted into another phone, it cannot find/connect to the network. Due to the nature of the ...
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65 views

Why even new SIM card is corrupting in my both phones old and new?

My old phone which is running on Android 4.0.4 Sony Xperia ST21i (3G) and new one is Android 9.0 ASUS Zenfone Max Pro M2(4G) but this is not a case. I've same problem in my new phone that I was ...
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  • 155
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0 answers
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Google services don't work on apps but work on browser after changing SIM card

I changed the SIM card in my cell phone and Google apps such as Google Maps, YouTube, etc. no longer works, saying I was offline. Yet they still work if accessed from a web browser. How to get the ...
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1 answer
270 views

How to disable Enter SIM card PIN window under Android 9?

hello see the picture. I took my smartphone with me and the battery was empty. When I recharged the device I got this typical SIM card message. Enter the PIN. but unfortunately I didn't know the PIN ...
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1 vote
1 answer
5k views

How to check IMSI/ICCID on MIUI10?

Is there any way to view IMSI and ICCID numbers of my SIM-cards? I didn't find such menu neither in About-Status nor anywhere else.
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0 answers
28 views

How to remove a large sim card from a Samsung Galaxy S8

Someone put a large size SIM card into the card slot of my Samsung Galaxy S8 without using the tray. How do I get it out?
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1 answer
934 views

How do I change phone number in Viber from SIM1 to SIM2, when I only have data on SIM2?

How do I change Viber phone number in a dual-SIM phone from SIM1 to SIM2, when my current Viber account's phone number corresponds to SIM1, but I only have data on SIM2? (e.g. when I have moved to a ...
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0 answers
64 views

Enable data and sms on CDMA network programmed number Galaxy S7 Edge

My Galaxy S7 edge (G935P) sim card slot is broken. It doesn't recognize any sim card I put. I managed to program my phone number into the phone using CDMA Network. I can make calls, but I can't send ...
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0 votes
1 answer
40 views

What are potential causes of internet malfunction?

I'm using Asus Zenfone Max Pro M2. Running on android pie. Phone is updated to latest firmware. Few days ago I've changed sim card but problem still persist. I can use internet with another sim card ...
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