Fix 3 Enable And Disable Airplane Mode
The purpose of Airplane mode is to help you disconnect from all network services when you are on a flight. However, you can use this mode to fix many network-related problems. There is no guarantee that using Airplane mode will fix your issue but you can give it a go as it will not harm your device.
Make sure you have saved your work before you do this as your phone will be disconnected from the Internet as well.
Step 1. Open the notifications panel on your phone.
Step 2. Tap the Airplane mode icon to turn the mode on.
Step 3. Tap the icon again to disable the mode.
Enable Android Airplane Mode
What Is Stored On A Sim Card
ByLuke Edwardspublished 12 August 20
Your SIM chip can store data, but what exactly does it keep on that micro storehouse?
A SIM card, at its most basic, is a chip that allows phone networks to recognise you to send and receive data. But it gets more complex as the SIM can store more data than simply that which is required to recognise your network settings. So if you’ve picked something out from our best SIM only deals, make sure you know what that SIM is doing.
This is all you need to know about SIM storage.
Can You Use Two Sim Cards In The Same Phone
Yes, many smartphones and even “dumb” phones sold these days can use two different SIM cards simultaneously. These devices are called Dual SIM phones, and they can use one or both SIM cards you insert in them to initiate or to receive phone calls. If you want a detailed explanation of what Dual SIM is and how it works, read Dual SIM – What is it? What does Dual SIM mean? How does Dual SIM work?.
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What Is A Sim Card
In laymans terms, a SIM card is a tiny, portable memory chip that stores information about you as a cell phone user. On it, theres a seventeen-digit code that designates its country code of origin, the system carrier , and a unique user ID.
You may wonder, Who cares about this code? A valid question and guess what: phone carriers do. Its how they attribute cell phone bills and charge us.
Above all else, SIM cards are super handy because they can be easily transferred from one device to another. Just like in my opening story, all that youd need to do is take it out of one phone and slip it into the new one. By making the switch, most of your contacts and personal settings will transfer with it, making life all the easier.
Whats Stored On A Sim Card
A SIM card stores an International Mobile Subscriber Identity number, which is a unique 15 digit number identifying the card on carriers mobile network. The IMSI is an important part of the lookup process and determines the network to which a mobile device connects.
Along with the IMSI, a 128-bit value authentication key is sent to verify your SIM with the GSM cellular network. The Ki is assigned by the operator and stored in a database on their network.
A SIM card is also capable of storing SMS messages and the names and phone numbers of up to 500 contacts, depending on the memory size of the SIM card you have. If you have to change phones for whatever reason, youre able to transfer your contacts via the SIM card painlessly.
Most SIM cards contain between 64-128 KB of storage.
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Restart Your Android Device
One of the first things that you should try when your Android device is showing a No SIM card detected error is to restart your device. This will give your device a fresh start by flushing the RAM and clearing up temporary files and processes.
Restart Android device. Screenshot: Sagar Naresh/Gotechtor
Once youve turned off your phone, wait for about 20 seconds before turning the phone on again.
What Can A Sim Store
The SIM comes in storage capacities from as low as 8KB right up to 256 KB. That might not sound like a lot but it is enough to store up to 250 contacts right there on the SIM.
That means, when you change phone, the contacts go with you on the SIM. Although most phones now let you store them in the cloud with far more rich data like addresses, emails and even pictures.
SIMS can also store SMS text messages. the number that can be stored depends on the SIM but in most cases modern SIMs aren’t used as a memory bank since phones have plenty and lots of storage is now cloud based.
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How Does A Sim Toolkit On Android Work
A SIM toolkit is pretty much the same on all Android devices. The only difference in each app is the options and menus available on-screen because a service provider will offer different value-added services than their competitors.
Generally, the SIM Toolkit lets your phones SIM establish and relay commands between your device and network. Imagine the SIM Toolkit to be a middle-man that establishes a connection between your phone and network so they will have an understanding.
Before the inception of modern phones, the SIM toolkit was locked with a PIN or phone lock to protect the applications from being exploited. And when locked, users wont be able to access the apps in the SIM. nor on a phone without the SIM.
You May Have The Sim Card Option Disabled
Even if youre sure that you have it on, its best to check. Maybe you turned it off for some reason and forgot to turn it back on. To check if you have it enabled or not, go to Settings > Network and Internet > SIM Cards.
If the SIM card is enabled, the slider to the side should be in blue a grey button means its disabled. If you have a phone that supports double SIM, the second SIM should be right under the first one with its respective slider.
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Faqs On Sim Not Provisioned Mm#2 Error
You will probably have many questions about this error like what does SIM not provisioned mm#2 mean and why this error occurs on your phone. Here we answer those questions for you.
1. What does SIM not provisioned mm 2 mean on Android?
The error means that your SIM card is not yet linked to your carrier account. For as long as this error remains on your phone, you cannot call anyone except for the emergency numbers.That should answer your what does SIM not provisioned mm#2 question.
2. Why does my phone say SIM not provisioned?
Your phone says SIM not provisioned mm#2 because either your SIM card is not activated or there are other issues with your phone. The following are some of the scenarios where your card may not work.
- You have just purchased a new phone with a new or old SIM card.
- You have transferred contact numbers to a new sim card.
- The SIM card is not properly installed on your phone.
- Your carriers servers are down.
- You are not in the coverage area of your carrier and you do not have roaming enabled.
3. How do I activate my SIM not provisioned?
A deactivated SIM card often causes the AT& T SIM not provisioned mm#2 error and one way to deal with that is to get your card activated. You will probably need to either call your customer care, send a text message, or log-in to the website of your carrier to activate your SIM card.
Updated on 2020-06-12 / Update for Fix Android
Android Sim Card Extractions
Traditionally, SIM cards were used for transferring data between devices. SIM cards in the past were used to store many different types of data, such as the following:
- User data
- Integrated Circuit Card Identifier : Serial number of the SIM
- International Mobile Subscriber Identity : Identifier that ties the SIM to a specific user account
- MSISDN: Phone number assigned to the SIM
- Location Area Identity : Identifies the cell that a user is in
- Authentication Key : Used to authenticate the mobile network
- Various other network-specific information
With the rise in capacity of device storage, SD cards, and cloud backups, the necessity for storing data on a SIM card has decreased. As such, most modern smartphones typically do not store much, if any, user data on the SIM card. All network data listed previously does still reside on the SIM, as a SIM is necessary to connect to all modern cellular networks.
As with all Android devices, though, there is no concrete stipulation that user data cant be stored on a SIM it simply doesnt happen by default. Individual device manufacturers can easily decide to write user data to the SIM, and individual users can download applications to provide that functionality. This means that a devices SIM card should always be examined during a forensic examination. It is a very quick process, and should never be overlooked.
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What Are The Benefits Of A Sim Card
SIM cards are the unseen magicians of today’s smartphones. They make connecting to networks and switching phones as easy as removing a small metal tray.
If you buy a new phone, you can simply insert your existing SIM and keep on using your existing service as long as the new phone isn’t locked to a different carrier. Likewise, if you travel internationally you can just buy a SIM card from a local carrier â as long as your phone isn’t locked to a carrier.
Installing A Sim Card In The Battery Compartment
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Change Default Sim Pin
After enabling SIM Card Lock on your Android Phone, you will need to change the default SIM PIN to a new 4 digit SIM PIN, otherwise it will be easy for anyone to use the default SIM PIN to get into your Android Phone.
1. Tap on Settings> Lock Screen and Security> Other Security Settings> Set up SIM Card Lock
2. Next, tap on Change SIM card PIN option.
3. You will see a popup Screen, Enter the Current or Default SIM PIN and tap on OK.
4. You will see another popup asking you to enter your New PIN, Enter a new four-digit PIN and tap on OK
5. Again, you will see a Pop-up asking you to Confirm your New PIN. Enter the New PIN and tap on OK.
6. Power off your Android Phone by Pressing and holding the Power Button until you see Power OFF Option on the screen of your Phone. Tap on Power OFF to power off your device
Now, whenever you restart your Android Phone, you will be prompted to enter your SIM PIN. You wont be able to access your Phone without entering the four digit SIM PIN.
Can You Disable Sim Toolkit On Android
The short answer is no. SIM Toolkit is integrated on your phone through your SIM and is an important utility that allows operators to activate a new SIM card or enable a feature from your network to your phone directly. Since its an integral part of your phone, theres no way you can uninstall or disable the SIM Toolkit app on your Android device.
In our opinion, theres no harm in leaving the app be on your phone simply because its tiny compared to other applications on Android and doesnt hinder your phones usage.
Thats all we have to share with you about the SIM Toolkit app on Android.
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Why Do Phones Have Sim Cards
Connecting your phone to your wireless carriers network isnt the only reason why phones still have SIM cards. SIM cards make it incredibly easy to transfer your phone number from one phone to another.
So, if youre part of an upgrade program, its really easy for you to pop the SIM card out of your old phone and insert it into the new one!
Fix 6 Wipe Phone Cache
Your phone stores something called cache files on its storage. These files help your system to provide you with a fast response, however, these files sometimes cause issues with the phone. To get rid of the no SIM found notification, you can try the following two methods to clear the cache on your phone with ease:
Clear Cache Files on your Android Device
On some phones, you will find the option to clear the cache in the Settings app. However, if you do not have this option, you can use the clear cache option in recovery mode which should be available on most phones out there.
Wipe Cache Partition Using Recovery
Clear Cache with One-click
Here is another way for you to clear cache files smartly with DroidKit, which is a complete Android solution for you to solve any problems like fix system problems as we mentioned above, unlock any phone password, of course, clean system junk and cache files, etc. You can explore DroidKit now.
How DroidKit can help you with cache file clearing? It can smartly find and categorize caches, background apps, APK files, and large files on your phone. You can preview and choose to delete. All Android phones and tablets are supported. Follow the steps below to clear cache that may cause SIM card no detected:
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Does Factory Reset Remove All Data
Factory Reset does NOT delete all data When you factory reset your Android phone, even though your phone system becomes factory new, but some of the old Personal information is not deleted. But all the data is present in your phone memory and can be easily recovered using a free data-recovery tool such as FKT Imager.
Installing A Sim Card Using The Sim Card Tray
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Bonus Tip: How To Recover Contacts From Sim Card
If you want to extract contacts from your SIM card in case of data loss, DroidKit can still help you with that. You can get the Extract Needed Data function of DroidKit, which allows you to find and recover data from a device, google backups, or a SIM card.
Extract Contacts from SIM Card
Further Reading:How to Retrieve Deleted Phone Numbers on Android >
How To Find Sim Card Number On Android
Ideally, you should find your SIM number on Android from the About or About Phone settings. But, sometimes, for some reason, this information is not available.
The alternative and consistent method to find the SIM number on Android is to use an ICCID app. Follow the steps below to install an app I have tested and confirms that it works then, use the app to view your SIMs ICCID number.
- Open the Play Store app on your Android phone.
- Then, search iccid and open the highlighted app SIM Data Reader.
SIM Serial Number
- When the apps details opens, install it. Then, when the app is installed, tap Open.
- When the app opens, it will request access to make and manage phone calls tap Allow.
- The app will display the ICCID of the SIMs on your phone. To share the SIM number , tap the first of the highlighted icons . You could also copy the numbers by tapping the copy icon second icon.
You can use the steps covered in this Itechguide to find SIM card number! I hope you found this Itechguide helpful. If you found it helpful, kindly vote Yes to the Was this post Helpful question below.
Alternatively, you could ask a question, leave a comment or provide feedback with the Leave a Reply form found towards the end of this page.
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