From 10 days this problem occurs
AUTH info: MTK, version: 1
Firmware package: en\images
BROM version[1]: 7.1922.6.0
DA: MTK_AllInOne_DA[1].bin
hash: 29541b6af15c397977fb6c85df452c0add11ca18, size: 1.01 MiB
version: 3.3001.2019/06/02020/09/21 16:33:32, start addr: 0x40000800
Connecting to BootROM...
Power off the phone, disconnect and reconnect the battery(if possible) and connect USB cable...
Hold the VOL DOWN or VOL UP + DOWN(for newer model) to force MediaTek BootROM.
Scanning BootROM or Preloader port... Done
Detected [BootROM] ?MediaTek USB Port (COM3)?
Connection status: EHCI:HUB:HUB:USB 1.10 High-Speed
USB Driver: [MediaTek Inc.] wdm_usb, version: 3.2.0.0, date: 1-22-2016
Connecting Bootrom...
Requesting flash signature from server...
[SERVER] Sorry, We have run out of all available slots, please try again in 2 hours.
Platform: MT6785, Hw ver: 0xCA00, Sw ver: 0x0000
BROM_SCMD_SLA error. code 0x7046
(boot_rom.cpp, line:1280)
Bootloader authorization failed.
And after the period expires, the same problem will occur