Find contentI tried to flash the FTF with s1tool, emergency mode and via testpoint, got this error:
19/03/2015 01:30:14 Welcome S1 Tool [06.02.2015]. 19/03/2015 01:30:14 That is small and crippled subset of SETOOL2 service tool. 19/03/2015 01:30:23 19/03/2015 01:30:23 SELECT FIRMWARE PACKAGES 19/03/2015 01:30:23 YOU CAN SELECT SEVERAL PACKAGES WITH CTRL BUTTON 19/03/2015 01:30:31 CHECKING PACKAGES ... 19/03/2015 01:30:31 19/03/2015 01:30:32 DETACH USB CABLE FROM PHONE 19/03/2015 01:30:32 REMOVE BATTERY FROM PHONE 19/03/2015 01:30:32 ATTACH TESTPOINT 19/03/2015 01:30:32 PRESS "READY", THEN ATTACH USB CABLE TO PHONE 19/03/2015 01:30:32 19/03/2015 01:30:57 will use Sahara protocol ... 19/03/2015 01:30:57 REMOVE TESTPOINT NOW, THEN PRESS "READY" 19/03/2015 01:30:57 19/03/2015 01:31:02 PROCESSING ... 19/03/2015 01:31:02 SERIAL NUMBER : 1A398C02 19/03/2015 01:31:02 HARDWARE ID : 04000100E1007B00 19/03/2015 01:31:02 PRODUCT DETECTED: "MSM8974 OEM1 fused" 19/03/2015 01:31:02 HASH :49109A8016C239CD8F76540FE4D5138C87B2297E49C6B30EC31852330BDDB177 19/03/2015 01:31:02 Emergency loader uploaded ... 19/03/2015 01:31:03 19/03/2015 01:31:03 RUNNING S1_PRELOADER VER "LOADER_RELEASE_MSM8974_23_4_AID_4" 19/03/2015 01:31:03 LOADER AID: 0004 19/03/2015 01:31:03 DEVICE ID: 028C391A 19/03/2015 01:31:03 FLASH ID: "0011/01000010" 19/03/2015 01:31:03 LOADER VERSION: "LOADER_RELEASE_MSM8974_23_4_AID_4" 19/03/2015 01:31:04 19/03/2015 01:31:04 WRITING PACKAGES ... 19/03/2015 01:31:04 Processing package 19/03/2015 01:31:04 D:\Desktop\C6903_14.2.A.0.290_Global LTE.ftf 19/03/2015 01:31:04 19/03/2015 01:31:04 Processing ACPU files 19/03/2015 01:31:04 PROCESSING: loader.sin 19/03/2015 01:31:04 MINOR ERROR [ 0x8009001F_, err: 0017 ] 19/03/2015 01:31:04 error while uploading final HDR block 19/03/2015 01:31:04 Break. 19/03/2015 01:31:04 FINISHED 19/03/2015 01:31:04 Elapsed:41 secs.
Just download firmware from internet, flash it and your phone will be alive 
