BBM not working

Hello everyone...
I'm new in posting here so pardon me if I'm wrong anywhere. I'm a big blackberry fan and using it starting with my lovely BlackBerry Bold 9900. I've been using BBM flawlessly on it. But after upgrading to a bb10 device z10, I've just tried everything possible to make my BBM work but it won't. When I open it, a circle rotates that means it's loading and then a message pops up reading "No blackberry data found: unable to connect to server". There is red exclamation mark. I've read a bunch of forums on this website. But to no avail. I have restarted/rebooted. Done a hard reset, the battery pull, security wipe. Tried to swap any other sim. And I have checked in sim properties, it is indeed unlocked, all the three options there read unlocked. I have contacted three service provides who's sim I swapped in, all say there is no any problem from there side. I have tried going to settings>about>network>register. I love the device, but just couldn't make it to work.
So if you could pls tell me if I can sideload the android version (I've tried but not been able to do). If can get it working with even the android one, I will love it. I love the device.
Any help will be appreciated.
Thanks again.

Posted via CB10

use the browser on your phone and go here
BBM for Android & iPhone iOS - Download Free Instant Messaging - United States
download BBM from this site and see if that helps. You need to re-install BBm

Reinstall BBM. On bb10 device? I don't know how its possible to Uninstall BBM on BlackBerry z10.
By the way thanks for your reply.

Posted via CB10

Remove sim connect on WiFi and try bbm. Then put in sim and it should sync.

Posted via the CrackBerry App for Android

Thank you for replying...
I tried it. I removed my sim card, turned my device back on, connected to my brother's mobile Hotspot and tried to run BBM. But again the same problem.
Thank you again.

Posted via CB10