y nose que pasa estoy subiendo un acoustic pero dice failed nose por q dice eso

welcome to setool2 lite edition v 1.07
supported DB2010/DB2012 CID49/50/51, DB2020 CID49/51/52
Loaded 51 flash descriptors
ChipID:8040,EMP protocol:0301
NEW SECURITY MODEL DETECTED
PHONE IS RED RETAIL PRODUCT
FLASH CID detected:52
skipping empty loader...
phone pre-boot failed,possible RECOVERY needed.
Elapsed:7 secs.