mi k20 pro fail frp SERVER_UNDER_MAINTENANCE

Operation : Multi Flash
Checking for existing devices…Not Found
Turn Off phone, hold Vol UP + Vol DOWN and insert USB cable.
Some phones may need Special Boot Cable or TestPoint for EDL mode.
Found Port : Qualcomm HS-USB QDLoader 9008 (COM20)
Driver Info : Qualcomm Incorporated, qcusbser.sys, 2.1.2.2
Connecting to phone…OK
Waiting for response…OK
Init Handshake Sequence…OK
Hardware ID : E1500A00 [SD855] 00007200
OPK_DATA : 4B60244704D721E5B96DD5BB7233886E38F2198FBDE6433FCE 1D25A7B0472DD7
Initializing Protocol…OK
Sending Loader [prog_ufs_firehose_sdm855_ddr.elf]…Done
Executing Loader…OK
Auth Enabled Device! You need Mi Auth Account to service!
Skipping Auth…Failed
Error Log : PD94bWwgdmVyc2lvbj0iMS4wIiBlbmNvZGluZz0iVVRGLTgiID 8+CjxkYXRhPgo8bG9nIHZhbHVlPSJFUlJPUjogU2lnbmF0dXJl IFZlcmlmaWNhdGlvbiBGYWlsZWQuIiAvPjwvZGF0YT48P3htbC B2ZXJzaW9uPSIxLjAiIGVuY29kaW5nPSJVVEYtOCIgPz4KPGRh dGE+CjxyZXNwb25zZSB2YWx1ZT0iTkFLIiByYXdtb2RlPSJmYW xzZSIgLz48L2RhdGE+
Reading Auth Blob…OK
Blob : NDE1MTQxNDE0MTQ2NEQ0MjQxNDE0MjZDNzI1RjZENEY0MjY5Nj Y3QTZCNDU1MjQ0Mzg3MjZEMzY0NjZEMzQ3Njc1NzY2Mzc3NkQ0 MU==
Requesting UMT Server for Auth Data…SERVER_UNDER_MAINTENANCE
Storage Initializaton Failed!
Please use correct loader and check USB port / cable.
Operation Failed.
QcFire Ver. 6.2
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