sm-B313E read user code error

sm-B313E read user code error

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Platform: Samsung Spreadtrum
Selected port: COM1
Selected model: SM-B313E
Selected port: USB
To connect SM-B313E, perform the following steps:
1. Disconnect phone's battery.
2. Press and hold central button and connect the USB cable.
3. Connect the battery.
Connecting...
Phone found.
Sending mainloader...
Mainloader send successfully
Reading data from phone...
No user codes found

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sm-B313E read user code error