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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XOLO Q1000 SIM CARD ERROR. Not being able to flash other roms due to bootloop.

I recently rooted a Xolo q1000 phone and flashed CWM. I flashed a zip ROM but was not happy with it. I then downloaded a kitkat based rom from XDA which had to be flashed through Sp Flash tools. I did ...
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1answer
32 views

How to insert a SIM card on a MyWigo City?

First of all, excuse me if this is not the correct site to ask this question or if it seems too stupid, but I have been struggling with that for some hours and I couldn't solve it yet. The point is ...
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28 views

THL android wont allow number to connect

i bought a THL phone off of ebay. i purchased a 4GEE pay as you go sim to go with it. the problem im having is that voice and text messages cannot be sent or recieved. i set up the sim card on an ...
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58 views

Using Whatsapp on same phone but different sim card

I have a phone now that have WhatsApp installed on it, but I have a new sim card, and I don't know the phone number I used to register for Whatsapp because I used another sim card while traveling and ...
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57 views

Checking for SIM card defects

Short question: How can I obtain detailed information about my SIM card, using Android apps and/or adb (possibly root)? I'd like to diagnose mobile data connection problems possibly caused by SIM ...
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167 views

Setup Motorola Moto G 2nd gen without sim card

Can I reset and resetup my Motorola Moto G 2nd gen [XT1068] smoothly without having a sim card inserted? I don't want the setup system to want my sim card because every setup it auto enables the ...
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2answers
246 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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205 views

Unlock a Samsung Galaxy Note 3 SM-N9005

As the title says, im wanting my note 3 unlocked from the 3 (three) network in the UK. I understand the Samsung unlock servers are down which is why i haven't done it myself, but also understand ...
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1answer
72 views

metropcs ZTE no network and doesn't connect,

I recently had to factory reset my phone. Now when I put the SIM card in from my Huawei it won't connect to the carrier data network, it only works on WiFi.
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1answer
190 views

Does replacing a damaged SIM slot changes the IMEI as well?

I damaged my 3G (WCDMA) SIM slot which I need to get replaced/reparied. I'm curious whether the replacement will also change the IMEI no or the slot? i.e. is IMEI info linkedup with the SIM SLot ...
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94 views

Passwords and SIM change

The Android idiosyncrasy of forgetting all passwords on SIM change is annoying in this world fettered by daylight robbery otherwise known as roaming fees. Has anyone figured out a way to make it ...
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102 views

Manual network unlocking failure, please HELP

Im trying to unlock my Samsung Galaxy S3 GT-I9300 and i have some troubles. My phone is running on Android 4.1.1 and it has root mode enable. 1: I dial the "secret" code *#197328640#. 2: Press ...
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178 views

S4 not detecting Sim card

I'm not sure that this is the right place to ask this but I hope getting any hier. I have a Samsung S4 that doesn't recognize the SIM card I've bought a new SIM-Card reader and changed the old one, ...
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0answers
154 views

How can I view contacts and SMS on my SIM card (without importing them)?

I need to replace my SIM card with a newer one, because the new phone I ordered has only a micro-SIM slot. The replacement SIM has just arrived. As soon as I activate it, the old one will get ...
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0answers
372 views

Samsung Galaxy S5 Active no SIM Card

I tried rooting my device with towelroot only to find out it didn't work. I went to bed before doing this, and when I woke up my phone said no SIM card, please insert in the notification bar. I got ...
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167 views

Retrieving lost SIM PIN and PUK

If the SIM and PUK are stored on the SIM card, then why can't an Android application read this information and display it to the user? Thanks.
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184 views

Disabling/Changing PIN on Android device: where are the disabled flag and new PINs stored (SIM or internal storage)?

On my Samsung Galaxy SIII, one can go to Settings -> More -> Security -> SIM card lock -> Set up SIM card lock -> Lock SIM card` which displays a check box which can be used to configure the phone to ...
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1answer
188 views

Possible to change SIM card PUK on Android device?

On my Samsung Galaxy SIII, one can go to Settings -> More -> Security -> SIM card lock -> Set up SIM card lock -> Change SIM PIN to change the default PIN that came with the SIM card. ...
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75 views

Using the tablet for cell phone calls

My tablet is a SurfTab xiron 7.0 3G. It can take two sim-cards (dual sim-capable). I can receive voice calls over the bluetooth headphones. It does not seem to be able to alert by a ringer or flashing ...
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0answers
59 views

Htc does not recognize any sim cards

I have a HTC wildfire that i am using as a replacement phone until my contract is up as my former phone is broken. It works fine however wont detect ANY sim cards i use. I have tried an o2 and two ...
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2answers
771 views

Storage space and memory: mobile phone architecture versus PC architecture

On a PC, there are hard disks acting as storage space where the operating system and application files are stored, and there is RAM which is memory which gets used up by the operating system ...
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250 views

How to delete SIM card messages in Kit Kat

How to delete SIM card messages in Kit Kat? Usually I get the SIM card is full error, but if I try to delete the messages I get the error Unfortunately, messaging has stopped. This is a Micromax ...
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1answer
65 views

Ordered i9300 from eBay - need help to understand what's going on

I've ordered a new, unlocked i9300 from eBay, and I had some adventures with it: I've unpacked it, inserted my SIM, powered it on, and found out that the phone always thinks that I'm roaming. ...
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186 views

Samsung Galaxy S III I9300 - “Insert SIM card” after installing CM 10.2

I flashed CyanogenMod 10.2 from zip on SD card with ClockworkMod, and now my Galaxy S3 doesn't detect my SIM card. Upon loading CM the first time, it shows the following message: SIM card - you ...
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1answer
745 views

Sim change alert - Unforunately, Settings has stopped

I'm trying to disable the SIM change alert in my phone, but both "Remote Controls" and "SIM change alert" options in my Settings app are crashing it with the message "Unfortunately, Settings has ...
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5 views

changing phones [duplicate]

i have recently got a new phone and have to intall whats app on it but I don't want to change my old number. unfortunately I don't have the old sim card for me to receive the verification code. what ...
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2answers
205 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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36 views

save roaming on dual sim card

Phone companies do not permit call forwarding feature to international numbers. But if we have a active dual sim phone, is the following scenario possible? Sim 1 gets an incoming call which gets ...
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0answers
166 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
93 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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149 views

Samsung Galaxy Tab 4

I opened chrome and it shoots a notification that if I don't stayed in the page that it was opened, my battery's gonna die. The page was "top3androidapps.com". HELP. I don't know if it's a virus, i ...
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0answers
63 views

A lack of sim card in my android device crashing my apps? Why?

A weird problem I observed with my Micromax A116, android version 4.2.1. From the day I bought it, 8 months back, I have used both the sim slots. But the internal earphones were damaged & I ...
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3answers
120 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 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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0answers
7 views

Google Play account not transferred during SIM swap on new phone [duplicate]

I got a new android phone. The SMS card fit but it did not transfer over my Google Play account information. How do I get it back? When I set up the Gmail account I started with a new one not the one ...
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161 views

How to move contacts from SIM to phone on LG Optimus L7 (Android 4.0.3)

I go to Contacts -> Menu -> and then I have only two options: Speed dials Call settings If I enter into "Call settings", I can't find any "Import/Export" option (can't find the lg-optimus-l7 tag) ...
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839 views

Change MCC and MNC in the APN settings

I'm currently on a vacation with a new phone who worked perfectly on the country I bought it at (SMS, calls, data...) but now, when im abroad, the data wont work although I can make calls alright. But ...
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1answer
55 views

Provision/Availability of Android Updates

My Nexus 7 receives Android updates directly from Google, regardless of the cellular service provider of the SIM card in the device. My Galaxy S3, with a SIM card in it, receives updates when my ...
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0answers
111 views

Sim card reboots phone and stops working

I am using Lg L90 and the problem is, that every time I use Chrome app I get a message after a few minutes. It says something like "sim card shut down" or something like that and there is a progress ...
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1answer
2k views

SIM Card not detected after failed recovery flash

I recently tried to install CWM on my rooted archos 40 titanium. Unlocking the bootloader using fastboot oem unlock doesn't work, I only got ellipses for a while. So I installed Mobiluncle tools and ...
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0answers
208 views

Can Asus Nexus 7 WiFi support a Huawei E3276 4G usb dongle SIM holder to achieve telephone functionality?

I could connect (with an usb adapter) a Huawei usb dongle that I normally use with my laptop computer and contains a SIM card for mobile internet and phone functions like SMS and phonecalls, but it ...
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1answer
249 views

How can I use my Samsung S4 phone functionality from my Asus Nexus 7 tablet?

I got two android devices: Samsung S4 and Asus Nexus 7 where the latter does not have a SIM card. I'd like to use the phone functionality from the tablet e.g. calling and/or SMS but I don't know how. ...
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113 views

Gmail asking for authentication after changing SIMs

To recreate issue: Start 2-factor authentication Generate app-specific code Use that to sign into your device Change the SIM I have two SIMs, and I sometimes switch between them. The issue is that ...
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0answers
1k views

Dual SIM: Disable telephony features on second SIM

I have a Samsung Galaxy S Duos 2 (GT-S7582) with two SIMs. I'd like to use one of those SIMs for everything telephony related, the other SIM for everything data related. I managed to set the first ...
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0answers
875 views

Moto G won't detect sim card

I recently bought a 8 GB Moto G Unlocked. When I try putting in the sim card into the phone the phone doesn't seem to detect the sim. Any solution?
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1answer
2k views

Whatsapp: traveling with a pay-as-you-go SIM card [closed]

If I replace the SIM card in my Verizon Galaxy s4 with a pre-paid pay-as-you-go UK SIM card, then my phone will have a new UK number. If I now want to use Whatsapp, do I have to migrate Whatsapp to ...
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1answer
82 views

How can I tell if I need a valid SIM card (active phone #) on my old Smartphone to use an App?

I gave my old Moto RazrM phone to my daughter. The phone and Mobile internet had stopped working. So it only has wifi. It also has not valid phone "account". Will this limit her ability to use Apps? ...
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1answer
11k views

How do you SIM-unlock the SGH-I317 (AT&T Samsung Galaxy Note 2) on Jelly Bean 4.1.2?

I have looked all over the internet, and a lot of the download links and information has gone stale, or is incorrect. I wanted to standardize it here for other people.
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0answers
393 views

Problem with TB Donate Version restore

I have a Cricket 4G ZTE Sonata Z740G. It is rooted and using Android 4.1.2 JB. I was playing around with the security settings and set a SIM lock. The phone then asked me for a PUK code to operate. I ...
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0answers
1k 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 ...