=== LOG ===
Waiting For Device Connection... 
USB PORT: SPRD U2S Diag (COM11)
Port: SPRD U2S Diag (COM11)
Manufacturer: UNISOC Communications Inc.
OPEN COM PORT... OK
Waiting for server........ OK
Handshake NAND_FDL... OK
Boot version: SPRD3
CPU: Chip SC9863A
Sending payload... OK
Sending preloader... OK
Sending nand_fdl loader... OK
Read Build Prop Info... OK
 Brand: ITEL
 Model: ITEL L6503
 Product: L6503
 Manufacturer: ITEL
 Market Name: ITEL S16 PRO(VISION 2)
 Android Version: 10 (Android 10)
 Security Patch: 2021-01-05
 Build ID: QP1A.190711.020
 Build Date: THU FEB  4 20:00:41 CST 2021
 Display ID: L6503-F6315-10.0-OP-V031-20210204
 Fingerprint: ITEL/F6315/ITEL-L6503:10/QP1A.190711.020/OP-V031-20210204:USER/RELEASE-KEYS
 Build: 363
Read Internal Storage Info... OK
USERDATA: 24.99 GB
USERDATA: ENCRYPTED
Waiting for server........ OK
Backup important partitions
  Backup persist... OK
RESET FRP... OK
Elapsed Time: 20 secs, 811 msecs