364 questions
-2
votes
0
answers
26
views
Set certain IMEI in simcard [closed]
Hi out operators to service mobile need registry, I want to set certain IMEI ( that was registered) in simcard.
So when it get IMEI get the certain IMEI, not my phone IMEI.
For this I use ttl cp2102 ...
0
votes
1
answer
275
views
Modem Fibocom L850-GL on ThinkPad X1 Carbon not detecting SIM on Arch Linux (ModemManager serial command timeout)
I have a Fibocom L850-GL LTE modem on my ThinkPad X1 Carbon 6th gen running Arch Linux. The modem is recognized, but the SIM is not detected. Here's what I've tried and the relevant information:
...
- 23
2
votes
2
answers
116
views
Does SM-DP+ has access to MNO specific keys in the eSIM realm?
As you know in the eSIM realm, for the customer model, SM-DP+ is responsible for loading the MNO provided profile into the eSIM chip; and, after loading such profile, the final end-user, can ...
- 63
0
votes
1
answer
87
views
why is sim7600 number from clip different depends on sim card
im trying to setup python script where if someone is calling, it will answer the call depended on if number is allowed. but when call is comming, CLIP service sometimes offer number in like : CLIP: &...
- 11
1
vote
1
answer
171
views
How to know the access condition of EF_MSISDN in SIM card?
I am connected to the phone (USB Debug mode, plus enabling 3GPP AT commands). I need to write my own MSISDN in the SIM. I managed to do it in Physical SIM, but for the eSIM I got an error. I suspect ...
- 13
0
votes
0
answers
216
views
Smart Card(Sim Card), connect to stm32 via USART(UART)
After getting ATR and sending PTS, I tried to send APDU, but response is always the same as APDU which has been sent.
I tried to change the frequency for USART(Clock) and Baud Rate, after I tried to ...
- 1
0
votes
1
answer
158
views
Flutter read mutiple SIM card number
Using mobile_number package to detect multiple SIM card but only able to detect 1 sim card in few android and in few android not able to detect even 1 SIM card, and also need help with which sim is ...
0
votes
0
answers
259
views
Comparing device SIM phone number with the user entered phone number
As per my research and lot of others answers, we are sure that Apple is not allowing the developers to fetch phone number associated with the SIM in device.
But I'm wonder how PhonePe saying "...
- 808
0
votes
2
answers
189
views
Is it possible to use a sim slot in a Samsung phone as a generic PSAM reader?
There is an NXP JCOP 4 smart card with java applet on it (https://www.cardlogix.com/product/nxp-jcop-4-java-card-3-0-5-classic/), there is also an Android phone with dual sim and Android 13 (Samsung ...
- 1
4
votes
0
answers
62
views
Undocumented SIM States in TelephonyManager
I'm working on an application where I want to read the SIM State, and I've been following along with Google's documentation on getSimState.
Some of my users are returning values that are not ...
- 115
2
votes
1
answer
312
views
Send APDU commands to SIM card in android 11
In Android 11 (API level 30), these functions have been deprecated:
iccExchangeSimIO
iccTransmitApduBasicChannel
iccTransmitApduLogicalChannel
Is there any way to send an APDU command to a SIM card ...
- 45
2
votes
0
answers
580
views
Flutter: Detect and Display Available eSIMs on a Phone
I am able to detect and display the physical SIM cards present in the phone, and I can initiate a call with the SIM chosen by my user without the system doing it for them. To achieve this, I use the ...
- 21
1
vote
2
answers
1k
views
Retrieving Sim Serial Number on Android 13
In Flutter, I want to get the serial number of the sim. I used the package sim_data_plus. It works perfectly fine for Android 12 and lesser versions. But even though the package says that it provides ...
- 23
3
votes
0
answers
1k
views
How to do a simple React native e-sim implementation with LPA?
We are trying to let a button open the native eSim flow.
We got pretty far with the "react-native-sim-cards-manager", but we got stuck on the ios with error messages:
...
- 3,073
1
vote
3
answers
936
views
EF PNN speicifcation in sim/usim
I am writing a sim profile and I need to code EF PNN. As per TS31.102 and TS24.008 it shows that EF-PNN
has
first byte = Full name for network IEI: '43'
second byte = Length of Full name for ...
- 1,370
1
vote
0
answers
187
views
How to get all available accounts (including multi-SIM cards) that a contact can be saved on?
Background
I'm working on an app that on one of its screens, it lets the user to save a contact into any account the user wishes, just like on Google's Contacts app and on various built-in Contacts ...
- 117k
0
votes
1
answer
269
views
why SET STATUS APDU command returns 6985?
I have a USIM card and the Card Life Cycle is OP_READY:
Connected to the Card...
<--> [Mutual Auth]
---> 80 F2 80 00 02 4F 00
<--- 08 A0 00 00 00 03 00 00 00
01 <== ...
- 6,086
0
votes
0
answers
859
views
Is there anyway I can get mobile number of both SIM cards in android Java?
I want to add the functionality of login similar to UPI apps. The user will select the SIM card from his phone and I will send an SMS from that SIM and will verify his phone number using that SMS. But ...
- 51
0
votes
0
answers
54
views
Unknown AID UICC initialization iPhone SE2
When inserting an UICC in an iPhone SE2 and recording the APDU messages between the modem and the UICC I see a sequence opening a logical channel and trying to select an application. I could not find ...
- 6,228
1
vote
1
answer
749
views
Accessing Files for a UICC Application
I have two different UICCs with USIM applications installed.
With the first card, I can access the USIM EFs without needing to first select the application if I know the file ID of the ADF (which this ...
- 691
0
votes
0
answers
703
views
How to get IMSI in Android 10 (Android Q)
I'm unable to get IMSI in Android 10.
The Code that I was using to fetch IMSI number is giving an exception. java.lang.SecurityException: getSubscriberId: The user 10099 does not meet the requirements ...
2
votes
1
answer
496
views
Why SIMToolkit does not trigger registerred EVENTs for my Applet?
In order to debug a problem, I wrote the following applet. This applet simply registers itself for multiple events and then when an event triggers, it set correponding bits (based on the received ...
- 6,086
0
votes
1
answer
97
views
Notify SIM content change to ME
If I modify the content of USIM/SIM EFs programmatically (using a SIMToolkit applet for example), then can the USIM/SIM force the ME to update its state based on the new content of the SIM EFs?
- 6,086
1
vote
1
answer
1k
views
SIM7080G GSM modem module cannot detect the network
I'm trying to figure out the SIM7080G module.
The problem is related to the fact that I can not connect to a cellular operator. The SIM card I am using is working. Checked on a smartphone.
I met a ...
0
votes
2
answers
631
views
Commands are not recorded on the SIM7080G GSM modem
I'm trying to figure out the SIM7080G module. An error occurs with some queries. To see the error code, send the command AT+CMEE = 1.
The problem is that I send this command and I get the answer OK. ...
0
votes
0
answers
113
views
How to fix error ⸮⸮⸮ when use SoftwareSerial in ESP8266 connect with SIMCom
I am writing code for ESP8266 which connects SIMCom 76xx to get data using HTTP.
That's my code:
SoftwareSerial gsm(14, 12); // RX, TX
void setup() {
Serial.begin(115200); //Serial of ESP
...
- 1
0
votes
1
answer
541
views
how to connect the Raspberrypi to internet with Sim7020E using 1NCE IoT FLAT
hello I work with an Rpi 4 and an Rpi Zero W and I want to activate the internet connection by a communication network using SIM7020E. I manage to establish the contact by checking the basic commands ...
0
votes
1
answer
234
views
VOIP to Sim possible?
Is it possible to get a VOIP number that I already have, and transfer that void into a SIM card, so I can use it as a normal number?
Doubt it helps but I’m on an iPhone wanting to this..
1
vote
0
answers
56
views
Mobile networks: diffrence of mobile authentication algorith Milenage Version 1 & Version 2
I've heard in the telecom industry about Milenage Version 1 algorithm and Milenage Version 2 algorithm.
I want to know what are their differences?
The version 1 and version 2 have the same length for ...
- 10.3k
1
vote
1
answer
920
views
Control SIM7080G CAT-M/NB-IoT Unit from ESP32-DevKitC-32E
We want to control SIM7080G CAT-M/NB-IoT Unit from ESP32-DevKitC-32E.
SIM7080G CAT-M/NB-IoT Unit
https://shop.m5stack.com/products/sim7080g-cat-m-nb-iot-unit
ESP32-DevKitC-32E
https://www.espressif....
- 872
0
votes
1
answer
499
views
How to track sim card airtime and data pack with the help of python?
I have 10 sim cards used by different devices. Sim cards are Telkom (telecommunications provider from South Africa). We have to manually check the airtime and data packs available in all of them, ...
0
votes
1
answer
803
views
java smartcard problem // card provider configuration
I have a seemingly easy task, which is to read unencrypted data from a chip card
with Java. I have no experience at all with smart cards and I'm hoping that someone can point me in the right direction....
- 93
0
votes
1
answer
829
views
Check Registered Number Sim is inserted or not
I am trying to validate the user has the sim card in their android phone's sim slot while using our application
Like GPay, the Phonepay app will throw an error when we removed the sim card from the ...
0
votes
0
answers
272
views
Trouble accessing SIM card with MRK GSM 1400
I received yesterday my brand new Arduino MKR GSM 1400 and started playing around with today.
However, I'm having trouble stablishing the connection with the SIM card. I'm using the "ReceiveSMS&...
- 67
0
votes
1
answer
86
views
How to make TAG_ALPHA_IDENTIFIER empty not to ask user for a confirmation
My wallet applet requires to perform actions like PLAY TONE etc. But it requires a prompt "Yes or No?" from user. AFAIK, it is TAG_ALPHA_IDENTIFIER which is responsible for that. However, if ...
0
votes
1
answer
423
views
LOAD fails for Method component in USIM card via OTA SMS-DELIVER
I need to load a simple applet to my USIM card. Authentication is OK.
I'm using OTA SMS-DELIVER via SmartCard to install CAP file.
Using these:
https://github.com/simhacks/hello-stk.git
https://...
1
vote
0
answers
1k
views
How to Change SimCard Prefered Network From to LTE to Others Like 2g 3g and.. on spreadTrum modems
Sorry for the Question, but i couldn't find any solution related to this type of modem so,
we have a problem with our spreadtrum modems while we want to send "USSD" by "AT+COMMANDS"...
- 73
0
votes
0
answers
275
views
iccOpenLogicalChannel returns STATUS_NO_SUCH_ELEMENT on Javacard Applet
I have an applet (taken from this HelloSTK2 repo) I've compiled and installed on a SysmoISIM-SJA2 card and I've lightly modified it to respond to a SELECT APDU. The modification looks like this:
...
- 119
1
vote
1
answer
1k
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 ...
- 11
1
vote
1
answer
1k
views
Android 11 - how to detect programmatically when a SIM is inserted?
I am trying to catch an event in Android 11 that would get triggered when a SIM card is inserted in a phone. The following question mentions how to fetch the unique subscription ID, to know if the SIM ...
- 1,166
0
votes
1
answer
3k
views
how to get user's phone number in flutter
is there a package to get user's phone number for android and ios. I have read some packages like sim_info and sim_data but as I know there is no property to get user's phone number (please correct me ...
- 2,375
3
votes
1
answer
3k
views
How to get the phone number and SIM card slot for the current device, on the callback of onCallAdded?
Background
I'm working on an app that implements InCallService, so it can handle phone calls
The problem
On devices with multi-SIM, I need to show information of which SIM and associated phone number ...
- 117k
1
vote
0
answers
131
views
SIM5320E m2m sim card
I have developed a board that uses SIM5320E GSM module. I am calling an API from the module using normal data SIM and it is working fine. How ever when I used m2m sim card I am not able to call API.
I ...
- 11
0
votes
1
answer
1k
views
Reason for uniquness of Ki in GSM mobile networks
I've reading a wiki article about SIM cards.
https://en.wikipedia.org/wiki/SIM_card
It mentioned that Ki should be unique in mobile networks:
Each SIM holds a unique Ki assigned to it by the operator ...
- 10.3k
3
votes
1
answer
989
views
Usage of SIM card GlobalPlatform keys in field
Question 1. When a SIM manufacture personalizes a SIM card and then the mobile operator hand it over to an end user, are there any usage for GlobalPlatform (GP) keys (ENC,MAC,KEK,...)?
As long as I ...
- 10.3k
0
votes
1
answer
1k
views
Authenticating ADM on SIM card to change IMSI
I have been reading the ETSI TS 102 221 V8.2.0 (2009-06) to learn how to interface with sim cards
and using pyscard to interface with them in python.
I've been able to successfully read the ICCID and ...
- 1
2
votes
0
answers
292
views
How to change programmatically Mobile Data from SIM 1 to SIM 2 - Android
How to set up programmatically the default SIM card to use mobile data in dual SIM devices ?
- 21
1
vote
1
answer
731
views
Why my SIMCard returns 6985 to EXTERNAL AUTHENTICATE APDU Command?
I have a Javacard-based SIM Card with the following specification:
D:\>gp -i
# GlobalPlatformPro 325fe84
# Running on Windows 8.1 6.3 amd64, Java 1.8.0_20 by Oracle Corporation
Unlimited crypto ...
- 11
0
votes
1
answer
544
views
Load STK applet on SIM card boot
Are there any methods that a Sim Toolkit applet is selected when phone boots or SIM card is inserted on phone?
I want an applet on a SIM card that automatically executes some commands and display a ...
- 10.3k
1
vote
1
answer
441
views
Is it possible to capture Android phone SIM card APDUs?
I want to know are there any methods to log/trace APDUs which is communicated between SIM and Android Phone (ME)?
I want to log APDUs which transferred during the mobile network handshake process.
- 10.3k