ContributionsMost RecentMost LikesSolutionsRe: ##4636## not working syaoran wrote: Are you sure you don't mean, *#*#4636#*#*? That one worked! Thank you! ##4636## not working I just Switched to T-Mobile this week, and my phone has been on the network for 48 hours. Can someone please say why MMI codes like ##4636## are not working? Solved