Can't update BBM.

My bbm version supposes to be 10.8.5.15.
I found this version is a mess. The thing disturbing is that version of BBM doesn't work on wifi.
Then I decided to downgrade it by installing bar file via Sachesi, which I downgraded to version 10.2.*** (I forget). It doesn't have channel and a mess. I can't see what I write while typing because keyboard cover the text box, unless I don't send the message. Because of it, I wanted to reload the OS.
However I found software update says it's for improvement. Only 28 MB. Then I ran it.
Finally I found my BBM version is 10.7.5.30.
Everytime I check my BlackBerry World says the latest version is 10.8.5.15. And I don't understand why I can't update it since there's no indication it's outdated.

Won't I be able to update BBM again? Do you think next official major update (10.3.2) can fix BBM? (in my case).
Or do you guys think reloading OS will fix everything?
Posted via CB10

Well, reloading your OS is likely the sure fix.

Go to BlackBerry World via website and then download from there will trigger the download to your phone

Z30STA100-2/10.3.2.2204 | CB Mod

As 2 d reason y u don't c what u type, go 2 bbm settings, uncheck/check the keyboard on top typing bar option

Posted via CB10

Thank you guys. I'll try.

Posted via CB10