gracias carlosirai, desafortunadamente no me deja hacer el read, pone esto:

Will backup GDFS now.
ChipID:9900,EMP protocol:0301
BOOTROM MODE DETECTED
Speed:921600
OTP LOCKED:1 CID:51 PAF:1 IMEI:35489301605xxx CERT:N/A
FLASH CID:52 COLOR:RED
LDR:061201 1314 HANCXC1329129_DB2020_FLASHLOADER_R2A005
Flash ID check:897E
Flash props sent ok
ldr_on_ldr hdr no ack (10)
CSloader uploading failed,exiting
Elapsed:1 secs.