VIM3 black screen and no boot krescue

Hello
This is Juan.
When I received my vim3 board I could boot perfecty in android linux installed by default.
But after I erased emmc with USB burning tool I can’t boot from krescue in sd card to install a new linux distribution.
I’ve downloaded https://dl.khadas.com/Firmware/Krescue/dump/VIM3.krescue.sd.img.gz and I’ve burned with balena Etcher in a 16GB microSD card.
I’ve tried to boot in MaskRom mode(pressing 3 time Function key in 2 seconds) and blue led blinking but after that screen stay in black without khadas logo.

I’ve trried with different USB-C cables, power supply and HDMI cables without any result.

I’ve readed lots of docs in docs.khadas.com and forum but I don’t know how to solve this problem.

Thanks in advance.
Juan.

Thank you fred21. But It doesn’t works to me. Krescue not boot.

I generally have better luck using Rufus to make the card.

@maciascoque Can you try with this pages .

try to burn a new images.

And did you know how to use serial tools ? I can’t help you to check the board’s status.

Thanks Frank for your answer.
Connecting with usb-ttl conversor using kermit as It indicating in document It return below chunk every 5 seconds or when I push reset button. After reset I try to push Ctrl-C or spacebar but no works. Not appears prompt kvim:
# kermit
Connecting to /dev/ttyS6, speed 115200
Escape character: Ctrl-\ (ASCII 28, FS): enabled
Type the escape character followed by C to get back,
or followed by ? to see other options.
----------------------------------------------------
SM1:BL:511f6b:81ca2f;FEAT:A0F83180:20282000;POC:F;RCY:0;EMMC:0;READ:0;0.0;CHK:0;
bl2_stage_init 0x01
bl2_stage_init 0x81
hw id: 0x0000 - pwm id 0x01
bl2_stage_init 0xc1
bl2_stage_init 0x02

L0:00000000
L1:00000703
L2:00008067
L3:15000000
B2:20282000
B1:a0f83180

TE: 123100

BL2 Built : 15:22:05, Aug 28 2019. g12b g1bf2b53 - luan.yuan@droid15-sz

Board ID = 8
Set A53 clk to 24M
Set A73 clk to 24M
Set clk81 to 24M
SYS1 pll lock check retry
try t0...
SYS1 pll lock check retry
try t1...
SYS1 pll lock check retry
Stop here...

@RDFTKV, burning image to sd with Rufus not works.

Connecting with usb-ttl conversor using kermit It return below chunk every 5 seconds or when I push reset button. After reset I try to push Ctrl-C or spacebar but no works. Not appears prompt kvim:

> kermit
    Connecting to /dev/ttyS6, speed 115200
    Escape character: Ctrl-\ (ASCII 28, FS): enabled
    Type the escape character followed by C to get back,
    or followed by ? to see other options.
    ----------------------------------------------------
    SM1:BL:511f6b:81ca2f;FEAT:A0F83180:20282000;POC:F;RCY:0;EMMC:0;READ:0;0.0;CHK:0;
    bl2_stage_init 0x01
    bl2_stage_init 0x81
    hw id: 0x0000 - pwm id 0x01
    bl2_stage_init 0xc1
    bl2_stage_init 0x02

    L0:00000000
    L1:00000703
    L2:00008067
    L3:15000000
    B2:20282000
    B1:a0f83180

    TE: 123100

    BL2 Built : 15:22:05, Aug 28 2019. g12b g1bf2b53 - luan.yuan@droid15-sz

    Board ID = 8
    Set A53 clk to 24M
    Set A73 clk to 24M
    Set clk81 to 24M
    SYS1 pll lock check retry
    try t0...
    SYS1 pll lock check retry
    try t1...
    SYS1 pll lock check retry
    Stop here...

If I try MASKROOM mode, pushing 3 times Function boton, I receive the same output except appears USB:0

SM1:BL:511f6b:81ca2f;FEAT:A0F83180:20282000;POC:D;RCY:0;USB:0;EMMC:0;READ:0;0.0;CHK:0;

POC:D
Means entered into maskrom mode already.

I think @numbqq is the right person to look into this.

I TRY to enter into maskroom mode, pressing three times function button and then press any key to enter in kvim3# prompt. But prompt doesn’t appear as you can see in the kermit log.

in my particular case, after recording Krescue on sd, when vim3 is turned on, Krescue starts first, without any manipulation and button presses. But you obviously have a problem in the sd card itself

  1. VIM3 in maskrom cant start from SD and only going to usb burn mode

  2. if u have broken emmc bootloader (looped ) u can start amlogic-burn-tool and rewrite bootloader

single uboot images for VIMx amlogic-burn-tool: https://dl.khadas.com/Firmware/uboot/mainline/

VIM3 there
https://dl.khadas.com/Firmware/uboot/mainline/VIM3.uboot-mainline.emmc.aml.img (README: https://dl.khadas.com/Firmware/uboot/mainline/README.txt)

wget https://dl.khadas.com/Firmware/uboot/mainline/VIM3.uboot-mainline.emmc.aml.img
aml-burn-tool -b VIM3 -i VIM3.uboot-mainline.emmc.aml.img
# ok reboot device 

now u can start krescue from sd :wink:

thanks you @hyphop for your answer.
But vim3 card is not recognized throught USB-C in my linux or windows 10.
Besides, I have Linux Mint and arm-burn-tool is not supported in this distro.