=== LOG ===
Waiting For Device Connection... 
USB PORT: SPRD U2S Diag (COM150)
Port: SPRD U2S Diag (COM150)
Manufacturer: UNISOC Communications Inc.
OPEN COM PORT... OK
Waiting for server........ OK
Handshake NAND_FDL... OK
Boot version: SPRD3
Sending payload... OK
Sending preloader... OK
Sending nand_fdl loader... OK
Read Build Prop Info... OK
 Brand: WELCOME
 Model: 12
 Product: 12
 Manufacturer: WELCOME
 Android Version: 8.1.0 (Oreo)
 Security Patch: 2021-10-05
 Build ID: OPM2.171019.012
 Build Date: TUE DEC 26 19:31:17 CST 2023
 Display ID: OPM2.171019.012 RELEASE-KEYS
 Fingerprint: SPRD/SP7731E_1H10_NATIVE/SP7731E_1H10:8.1.0/OPM2.171019.012/52219:USER/RELEASE-KEYS
 Build: 52219
Read Internal Storage Info... OK
USERDATA: 4.70 GB
USERDATA: ENCRYPTED
Backup important partitions
  Backup misc... OK
Fix Boot Warning... OK
Rebooting... OK
Elapsed Time: 20 secs, 236 msecs