imei | Create IMEI code valid in PHP

I have a df with rows as:

I have customers who have duplicate SocialSecurity and I want to remove them and keep the newest customer. I am doing this by comparing _id and keeping the one with the largest value. Unfortunately, when I am playing with dumby data, it seems like my code does not always delete the one with the smallest _id. Any idea why? I thought the $sort would work

al momento de que trato de obtener el IMEI de mi dispositivo me arroja el siguiente error: The user 10618 does not meet the requirements to access device identifiers. Esto empezo a suceder despues de que actualize mi telefono, por que antes de ello si me valia, pienso que tiene que ver algo con APIs anticuadas, agradeceria muchisimo si me pudiesen ayudar a solucionar el error.

Permisos en el MANIFEST

PARTE DEL CODIGO EN JAVA, DONDE TRATO DE OBTENER EL IMEI, EL ERROR ME INDICA EN: imei = tm.getImei(); //el sistema me arroja que aqui es el error

There are two kind of similar endpoints, let's assume: POST devices/{uuid}/{imei} and POST devices/{uuid}/device-info. The first one is to update IMEI (delivered via path variable) of device specified by UUID and the second one is to update its other parameters (delivered with request as json body).

While server is working "normally" from a jar file, both endpoints works properly how it is described above, which was tested by Postman. But when I run integration tests (with maven or directly through IntelliJ), sending POST request to devices/{uuid}/device-info is interpret on server side as a request to devices/{uuid}/{imei}, where phrase "device-info" is treated as IMEI number.

For integration tests I use autoconfigured MockMvc class and SpringBootTest + Mockito + JUnit4 utilities. webEnvironment is set as SpringBootTest.WebEnvironment.MOCK and everything is ran with SpringRunner.

I was looking for solutions, but actually found nothing. Has anyone met with something similar?

EDIT: I'm adding API declarations if it can help.

I want to add device to my developer account. Where can I find the device id?

There is no Itunes anymore. I have my imei and serial but they are both invalid.

I have the following SQL Query

I am trying to use Calendar widget by setting state the value, but I found the below error:

I have data like this

I am trying to securely connect multiple devices(200+) to Microsoft Azure IoT Central. I have an android app running api 19 that connects a single device via https to IoT Central.

I am following the tutorial for SaS group enrollment.

I understand that I need a connection string to connect to IoT central which is composed of the underlying IoT Hub name, device primary key and device id(which can be the device imei or something so that can be auto generated).

However inserting the primary key for each device would require modifying the app for 200+ devices.

In order to auto generate the device primary key it can be derived from the the SAS-IoT-Devices group master key by running: az iot central device compute-device-key --primary-key --device-id or in my case using android studio with the code: