SevenEighter worked for me -- now have 7.8 on AT&T Quantum!

[doublebullout]

Just a quick note to post success using windowsphonehacker's SevenEighter app to update my AT&T branded LG Quantum up to 7.8. It worked perfectly after selecting the following language packs:

English (US)
English (UK)
French
German
Italian
Spanish

It automatically installed all the required updates, one right after the other, until 7.8 was completely installed.

 

[scdkad]

I used 78'r too and what a difference having bigger tiles on this 3.5" screen. Only problem is now most of the Live
Tiles stopped updating. The usual un-install/reinstall/re-pin doesn't help. Wondering if lack of a sim card is the problem. When I get one I will update post..