TMO signal stinks in our house, even though on their coverage map it's right in their sweet spot...talked with TMO multiple times and can't find solution - only started since beginning of year [and we've been with them 14 yrs!]?

Also, as far as I know, none of the factory unlocked full price iPhone 5 [or 4s] work on TMO unless you use gevey sim; and no 3G service, just edge?

With AT&T model, if and when she does use LTE, best match for Asia bands is the CDMA model...