i have this problem too
like it connected to server with no used credit and no info and error write firmware.
this log after first unsuccesfull connect.
Firmware package: tucana_global_images_V12.1.2.0.RFDMIXM_20210226.0000.00_11.0_global
Scanning for Qualcomm HS-USB QDLoader 9008 device...
Download Port: Qualcomm HS-USB QDLoader 9008 (COM12)
Connection status: EHCI:HUB:HUB[#3]:USB 2.10 High-Speed
USB Driver: [Qualcomm Incorporated] qcusbser, version: 2.1.2.0, date: 7-8-2015
Initializing...
Processing LUN 0
Writing PrimaryGPT at 0x00000000 (48 sectors)... ERROR: Only nop and sig tag can be recevied before authentication.
ERROR: Only nop and sig tag can be recevied before authentication.
ERROR: Only nop and sig tag can be recevied before authentication.
Failed at addr 0x00000000