SM-G900A 5.1.1 IMEI Repair done..

Checking certificate file… OK
KEY ID: ****
Waiting ADB device… OK
Reading phone info…
Android version: 5.1.1
Product code: SM2G900AZKAATT
Phone version: G900AUCU4COI5
PDA version: G900AUCU4COI5
CSC version: G900AATT4COI5
CSC country code: USA
CSC sales code: ATT
HW version: REV0.4
Phone S/N: **********
Modem board: MSM8974PRO
RF cal date: 2015.07.09
Initialization AT RIL… OK
Bypass MSL… OK
Checking for compatible phone and cert… OK
Phone KEY ID: 0478
Writing CERT… OK
Checking CERT status… OK
Rebooting phone… OK

Done with Samsung Tool PRO v.23.9:D:D:D:D