So I've been waiting forever to get Cyan on my AT&T 920 on T-Mobile running the unbranded RM-821_eu_euro1_425 ROM (to get some update early Amber maybe?) & just a few hours ago it notified my I had an update ready. Once updated I was quite excited to see that I had indeed finally received Cyan. Then I noticed the problems no Internet Sharing, & NO LTE both of which worked fine before. Going to celluar+sim>sim settings>network selection>search for networks only comes up with T-Mobile 3g,2g & AT&T 3g,2g. NSU/NCS keeps giving me an errors no mater what PC or cable I try so for now at least flashing back to the stock seems out. Dose anyone have any ideas this is kinda a big issue.