Hello there,

I've encountered some issues regarding the OEMInfo Content Provider. I am trying to read the bluetooth MAC of a TC21. For that I am using the code examples provided by this site: https://techdocs.zebra.com/oeminfo/consume/#samplecode. Hope you guys can help me.

I do the following:
1. Request permission to access the bluetooth MAC (as described here: https://techdocs.zebra.com/oeminfo/consume/#authorizationmechanism). I do that programmatically like in this example https://github.com/ZebraDevs/OEMIdentifiers-Java-Sample/blob/master/app….
2. Then I actually try to read the bluetooth MAC (as described here: https://techdocs.zebra.com/oeminfo/consume/#samplecode).

This works on my TC21 with Update 98 and MX 10.5.*. However, it doesn't work on another TC21 with Update 14 and MX 10.2.*.

On the working device I get the following Logcat output from the device (heavily cutted). This is from the exact moment I request permissions and fetch the bluetooth mac:
2022-07-20 16:59:57.411 9791-9813/? I/DataLakeProvider: isCallerWhiteListed false
2022-07-20 16:59:57.412 9791-9813/? D/DataLakeProvider: See if app is privileged through access manager
2022-07-20 16:59:57.412 9791-9813/? D/b: isAppPrivilege content://oem_info/oem.zebra.secure/bt_mac :: packageName de.fadi.mde_apps_flutter
2022-07-20 16:59:57.414 9791-9813/? D/b: processMxRequest called
2022-07-20 16:59:57.444 3776-3803/? D/CommonUtils: >>>>>>packages is system packagecom.zebra.zebracontentprovider
2022-07-20 16:59:57.509 9791-9813/? D/b: Got Mx response
2022-07-20 16:59:57.509 9791-9813/? D/b: onMxResponse
2022-07-20 16:59:57.510 9791-9813/? D/b: caller is privileged
2022-07-20 16:59:57.510 9791-9813/? D/DataLakeProvider: Access Manager status = true
2022-07-20 16:59:57.514 9791-9813/? W/RegisteredApis: Api =bt_mac is either not present or not lazyload

I used the following filter: "DataLakeProvider|isAppPrivilege|mx|whitelist|zebra|bt_mac"

On the device where it's not working I get the following output:
2022-07-20 16:55:58.236 7012-7029/? I/DataLakeProvider: isCallerWhiteListed false
2022-07-20 16:55:58.236 7012-7029/? D/DataLakeProvider: See if app is privileged through access manager
2022-07-20 16:55:58.236 7012-7029/? D/b: isAppPrivilege content://oem_info/oem.zebra.secure/bt_mac :: packageName de.fadi.mde_apps_flutter
2022-07-20 16:55:58.279 2957-2985/? D/CommonUtils: >>>>>>packages is system packagecom.zebra.zebracontentprovider
2022-07-20 16:55:58.357 7012-7029/? D/DataLakeProvider: Access Manager status = true
2022-07-20 16:55:58.361 7012-7029/? E/Path: There is no DataLake for the group/api = bt_mac
2022-07-20 16:55:58.364 7012-7029/? D/c: There is no data present in cache for provider = oem.zebra.secure

As you can see, they differ in the last part. The first device just said "Api =bt_mac is either not present or not lazyload" and provided the bluetooth MAC anyway and the second device just threw some errors and and simply pointed out that there "is no data present in cache for provider = oem.zebra.secure".

Do you guys have any clue why the exact same code works on one device but not on the other? They are both enrolled by AirWatch. The working device is my main developer device and the non functional one comes from a production environment. However, my developer device got enrolled like the production one. I even wiped it, enrolled it again and just tried to read the bluetooth mac - no difference. The only difference I can spot is the Update- and MX-Version.

Hope someone knows something,

Kind regards,
Michael