This is UniSOC T616 phone, so you need to keep Diag booting point:
Select Spreadtrum tab at Cheetah Application, go to Generl, use ANY [ Nokia ] phone, but select SOC Type T616, Use Factory Reset Button.
Hold connected Diag booting point [ until Analysis Security ... Okay ] and insert USB.
The process must look as follow:
BR, DebeliaMark, BG
Select Spreadtrum tab at Cheetah Application, go to Generl, use ANY [ Nokia ] phone, but select SOC Type T616, Use Factory Reset Button.
Hold connected Diag booting point [ until Analysis Security ... Okay ] and insert USB.
The process must look as follow:
Code:
Waiting for device...
Connecting port: SPRD U2S Diag (COM50)
Soc Type : #TIGER T616
Getting identity... Okay
Handshaking... Okay
Sending data... Okay
Verify Signature... Okay
Sending Loaders... Okay
Analysis Security... Okay
Getting Device info...
Getting Storage info... Okay
● Device Internal Storage: 110.12 GB
● Userdata Crypto State: Encrypted?
Wipe userdata... Okay
Wipe cache... Okay
Wipe frp lock... Okay
Reboot... Okay
● Total Time Elapsed: 21 secs, 529 msecs
WorkID: 2774398BR, DebeliaMark, BG