Lo intente asi como me dices y aparece esto

Welcome to SEtool2 ( LITE edition ) v 1.11
supported DB2010/DB2012 CID49/50/51/52, DB2020 CID49/51/52
Loaded 51 flash descriptors

if you like LITE edition - please visit http://www.setool.net and buy FULL.

ChipID:9900,EMP protocol:0301
BOOTROM MODE DETECTED
Speed:921600
phone pre-boot failed,possible RECOVERY needed.
Elapsed:48 secs.