Can not into upgrade mode after wrong firmware download

VIM3
1

I am using VIM3 board.
After downloading the wrong firmware, the set is not booted and do not enter the download mode.
I was download VIM3L_Pie_V200624 image in the VIM3 board.
The board is constantly reset and I cannot enter download mode in any ways.
Below is the log before reset. (It repeats continuously.)
Is there any way to download the correct firmware again?

-------------------------------------- log -------------------------------------
G12B:BL:6e7c85:2a3b91;FEAT:E0F83180:402000;POC:F;RCY:0;EMMC:0;READ:0;0.
bl2_stage_init 0x01
bl2_stage_init0x81
hwid: 0x0000 - pwm id 0x01
bl2_stage_init0xc1
bl2_stage_init0x02

L0:00000000
L1:20000703
L2:00008067
L3:14000000
S1:00000000
B2:00402000
B1:e0f83180

TE:143813

BL2Built : 15:21:42, Mar 26 2020. g12a g486bc38 - gongwei.chen@droid11-sz

BoardID = 8
Setcpu clk to 24M

Setclk81 to 24M

…

2

Hello @jspark, do not worry,
VIM boards are easily unbrickable,
You can try the maskrom method to enter upgrade mode,

image
image1225×144 9.83 KB

after entering upgrade mode, you can flash the correct firmware,
Good day!

3

hi, nothing bad happened, you need to quickly press the middle button three times before flashing, or go to Krescue and clean emmc there and update the image

4

Thank you for your reply.
After pressing the function key three times, I can see that the blue LED flashes.
But after then, the board resets immediately so I can’t do anything.

5

you should start the USB Burning Tool, there you will see that the board is detected, and start the installation.

6

You can boot into Krescue, clear eMMC in the same place, and install the image there

7

I believe you know how to use USB-C cable upgrade method, the triple clicking the function button is one of the ways to enter upgrade mode, once the LED go out, you have entered upgrade mode successfully, the board will appear as connected to the PC and you may procced to flash the firmware…

8

Thank you for quick reply.
I made sd card for Krescue and insert it the VIM3 board.
After connect the usb power cable, I can’t go download mode.
The board reset continuously, I can do any thing.
Please explain in more detail about Krescue mode.
Thank you.

9

in Krescue do a full eMMC cleanup and your board will be immediately detected when connected to the USB Burning Tool

10

Thank you for answer. I pressed the function key three times and noticed that the blue LED was flashing, but the board resets immediately.

11

Can you show a video demo of the board in the process?, we can see what seems to be the problem and help you solve it, alternatively I will post a video soon of how it is done…

12

Hello,
How can I share video file with you ?

13

what at the moment does not work for you, have you done everything?

14

You can post the video in youtube, and share the private link…

15

or upload to some file hosting

16

Please remove the SD card and Udisk.

1 Like
17

I linked two video for explain my state.

The video below is a video that is constantly reset.

In the video below, you can see the blue LED by pressing the function key three times, but the board is reset.

Please watch the video and ask for advice.

18

Hello @jspark

Can you copy/paste the uart log here?

19

The log below repeats every 4-5 seconds.
-------------------------------------- log -------------------------------------
G12B:BL:6e7c85:2a3b91;FEAT:E0F83180:402000;POC:F;RCY:0;EMMC:0;READ:0;0.
bl2_stage_init 0x01
bl2_stage_init0x81
hwid: 0x0000 - pwm id 0x01
bl2_stage_init0xc1
bl2_stage_init0x02

L0:00000000
L1:20000703
L2:00008067
L3:14000000
S1:00000000
B2:00402000
B1:e0f83180

TE:143813

BL2Built : 15:21:42, Mar 26 2020. g12a g486bc38 - gongwei.chen@droid11-sz

BoardID = 8
Setcpu clk to 24M

Setclk81 to 24M

20

Hello @jspark

Please provide the log when you press FUNC key 3 times.

Thank you.