I installed aosp bootloader version 6123 by following " Flashing the device" section in documentation. after flashing I see this output in the serial connection.
UEFI Start [ 2480] SEC
ASLR : On
DEP : On
Timer Delta : +1 mS
RAM Entry 0 : Base 0x0000000080000000 Size 0x00000000FDFA0000
UEFI Ver : 5.0.190528.BOOT.XF.2.0-00371-SDM845LZB-1
Build Info : 64b May 28 2019 11:21:44
Boot Device : UFS
PROD Mode : TRUE
Retail : TRUE
PM0: 20, PM1: 21, PM2: 24,
MDDPlatform DDC No Ack or Abitration lost
not panel detected, use defualt panel !
DisplayDxe: Resolution 1920x1080 (1 intf)
Render Splash [ 3199]
-----------------------------
Platform Init [ 3254] BDS
Platform : MTP
Chip Name : SDA845
Chip Ver : 2.1
Core 0 Freq: 1612 MHz
-----------------------------
UEFI Total : 2447 ms
POST Time [ 4927] OS Loader
LaunchAppFromGuidedFv: Could not find required guided FV
Press any key to shutdown
the board can not enter fastboot mode now. how can I install android image ?
thanks.