AirTel 4G not working after updating to EI Captain

Contact AirTel. Seems you need El Capitan compatible drivers. Other users have reported same problem but with different cellular dongles.

Based on this

Airtel 4G Dongle not working after upgrading to OS X El Capitan

it appears you need to get another dongle since AirTel does not support El Capitan

I am facing same issue, once you uninstall, it will not allow you to install also saying installation failed.

It seems installer is using format which is deprecated now. This is message i got from console.

No solution though.

Very likely that the software is not signed for El Capitatan

This

https://www.reddit.com/r/applehelp/comments/3kp27l/where_can_we_report_malware/

includes

The gist is that no user -- not even root -- can write to /usr, /bin, /System, and /sbin or debug protected processes. Apple has also removed the ability to use unsigned kernel extensions through boot-time flags. It's important to note that SIP can be disabled, through the recovery partition, but this will typically be done only for development and testing purposes.

See the solution discussed here:

Airtel 4G Dongle not working after upgrading to OS X El Capitan

I managed to get over it since I had un-installed the Airtel connection manager and wasn't able to install it again on Mac OS X EI Capitan. I went to Huawei website on the following link and mentioned my dongle model i.e. E3272 and download the Mobile Partner package for Mac OS X 10.11 (EI Capitan). For me installation took longer and at last it failed but application installed successfully.

http://consumer.huawei.com/en/support/downloads/detail/index.htm?id=31322

I attached my Airtel Dongle to my macbook and it detected the LTE signal. I created a manual profile with name as "Airtel" (though you can name anything) and set the APN to www.airtelgprs.com and was able to connect to network without any issues. Huawei already published the updated installer package for USB dongle in September but it seems Airtel is too slow to customize and provide it to its customers.

Please follow the below steps to apply a patch, which will help in taking forward the installation task for Airtel ZTE Device : MF825A

http://rohithsreeragam.blogspot.in/2016/04/airtel-4g-lte-mf825a-not-getting.html

The best Solution. This is for AIRTEL ZTE MF825A. First Download the patch file in the following website.

https://drive.google.com/file/d/0B314fks4e-XUY2Z0cFFkaWc5YU0/view

It is a zip file. Open this. You will find patch.dmg. Open this. Click "OPEN".

It will show "Please Drag your Packge here : "

Now open Airtel . Drag the "Airtel 4G" to the box and click "Patch".

Thats it problem solved. Now your Airtel 4G works as a brand new one.

- Mohan Kumar

Thanks Mohan.. it worked for me. May I know the reason why it was not working.