bst is great for me g900f imei change done great
 

bst dongle boom boom for me ............


http://i58.tinypic.com/6p696p.png

here is logs


e User: salexxxxxx01
PL2303 : NULL
Best Smart Tools, Load OK.

Restarting ADB service ... ok

Scanning devices ... 1 found
dev[1]
Manufactory: SAMSUNG
Model: SM-G900F
Hardware: QCOM
Mode: normal
Reboot device to DOWNLOAD mode ...
Wait device ready ...
Connect to device ...
Repair EFS ...
Flash completed
Time used : 9.3 s

user canceled
Scanning devices ... 0 found
Connect to device ...
Device Authentication ...
Writing IMEI ...
Writing IMEI certificate ... ok, You need reboot device

Scanning devices ... 1 found
dev[1]
Manufactory: SAMSUNG
Model: SM-G900F
Hardware: QCOM
Mode: normal
Repair 3G network ... done
Reboot device to NORMAL mode ...
Re-scan device before any operation please

tnx best dongle

second 1 also done great ......
 

Active User: saxxxxxx001
PL2303 : NULL
Best Smart Tools, Load OK.

Restarting ADB service ... ok

Scanning devices ... 1 found
dev[1]
Manufactory: SAMSUNG
Model: SM-G900F
Hardware: QCOM
Mode: normal
Reboot device to DOWNLOAD mode ...
Wait device ready ...
Connect to device ...
Repair EFS ...
Flash completed
Time used : 9.3 s

user canceled

Scanning devices ... 0 found
Connect to device ...
Device Authentication ...
Writing IMEI ...
Writing IMEI certificate ... ok, You need reboot device

Scanning devices ... 1 found
dev[1]
Manufactory: SAMSUNG
Model: SM-G900F
Hardware: QCOM
Mode: normal
Repair 3G network ... done
Reboot device to NORMAL mode ...
Re-scan device before any operation please
This operation need QCDI interface, setting phone as "Help" tips and connect phone with USB cable.
Device mode is unknown , please scan device first
Device mode is unknown , please scan device first
Device mode is unknown , please scan device first

Scanning devices ... 1 found
dev[1]
Manufactory: SAMSUNG
Model: SM-G900F
Hardware: QCOM
Mode: normal
Reboot device to DOWNLOAD mode ...
Wait device ready ...
Connect to device ...
Repair EFS ...
Flash completed
Time used : 9.2 s


Scanning devices ... 0 found
Connect to device ...
Device Authentication ...
Writing IMEI ...
Writing IMEI certificate ... ok, You need reboot device
This operation need QCDI interface, setting phone as "Help" tips and connect phone with USB cable.

Scanning devices ... 0 found

Scanning devices ... 1 found
dev[1]
Manufactory: SAMSUNG
Model: SM-G900F
Hardware: QCOM
Mode: normal
Repair 3G network ... done
Reboot device to NORMAL mode ...
Re-scan device before any operation please