G920T cannot read cert

G920T cannot read cert

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Operation: Read CERT
Selected model: SM-G920T
Software version: 23.9
Waiting ADB device... OK
Reading phone info...
Model: SM-G920T
Android version: 5.1.1
Product code:
Phone version: G920TUVS3DOJC
PDA version: G920TUVS3DOJC
CSC version: G920TTMB3DOJC
CSC country code: USA
CSC sales code: TMB
HW version:
Phone S/N:
Modem board: SHANNON333
RF cal date:
IMEI:
Checking Super user right... true
Initializating zTool... OK
Running zTool, please wait... error (7.7.8)
Done with Samsung Tool PRO v.23.9