Even before Galaxy S6 and Galaxy S6 Edge hit the market, the rooting method for both the devices already available and tested. Chainfire, the popular script to root your Android phones already updated their script to root Galaxy S6 and S6 Edge. The only drawback is, at this moment the script only supports Galaxy S6 or Galaxy S6 Edge with unlocked bootloader. This will work great if you are thinking to order the next Galaxy S phone from T-Mobile.
If you are ordering the phone from other operators who will ship the phones with locked bootloader, you need to wait a bit more before will someone creates another method.
Chainfire already tested their new rooting script against T-Mobile Galaxy S6 and Galaxy S6 Edge with model number SM-G920T and SM-G925T.
Here are the details from Chinfire’s Google+ page:
Samsung Galaxy S6 rooted
(Good news everyone!)
Obvious clickbait is obvious, unlocked bootloaders are unlocked, and as invariably someone has to point out in a snarky comment on /r/android, open doors are indeed open, even before you kick them.
Either way, the first CF-Auto-Root’s for the S6 family are up: SM-G920T and SM-G925T – the T-Mobile US S6 and S6 Edge.
Only very minor modifications were necessary [to the existing CFAR script]. The S6 CFAR has been tested on a real device, and root was achieved. Further information? I have none, I wasn’t there in person.
All completely expected, but perhaps nice to know regardless.
Before actually rooting though, consider that KNOX will likely be tripped, and there’s a good chance untripped KNOX will be required for phone based payments.
CF-Auto-Root repository: http://autoroot.chainfire.eu/