mi 9t/k20 Could not write loader!

Platform: XIAOMI
Selected model: REDMI K20
Put the phone into EDL mode:
1. Attach testpoint as shown in Help manual;
2. Connect USB cable;
3. Release testpoint after 3-5 seconds.
Found phone on COM2
Mode: Qualcomm 9008
Connecting...
Reading info...
QC HW ID: 000A50E100720000
QC CPU: UnckNow
QC SW VER: 00000001
Searching loader...
Sending loaders...
Could not write loader!
Backup saved as XIAOMI_REDMI K20_03-10-2019_17-40-52.dump file
Performed by 1.8.0.0 Software version.

from GSM-Forum https://ift.tt/2M9xhag
via IFTTT