Can not get VIM3 into upgrade mode

hyphop · May 5, 2020, 2:02pm

u have looped uboot fails!

and if u cant goto usb burn mode
i see only 2 variants 4u

do something wrong in mask rom mode steps
your device works not properly (partially broken)

Spikerguy · May 5, 2020, 4:21pm

Yes.

I feel its the second option. As my device can enter in maskrom mode as per the uart log but cannot be detected on the usb burning maybe usb c data connector issue

RDFTKV · May 5, 2020, 7:27pm

I am curious, is there no way SPI flash could be used to load a uboot? I see S-register on the VIM3, is that to SPI flash, what M-register is to eMMC? I am out of my league here, but curiosity can be hard to deny.
I guess if it is a USB-C related hardware issue, I can answer my own question, no.

Frank · May 6, 2020, 1:03am

@Spikerguy key mode and serial mode was my usual model

Spikerguy · May 6, 2020, 1:07am

Yes but not luck with that… So return is the only option and with this pandemic situation it’s going to take ages.

Frank · May 6, 2020, 1:12am

@Spikerguy Is serial mode useless ?

Spikerguy · May 6, 2020, 1:17am

Uboot doesn’t accept any key stroke to let me enter into uboot cli. If that was possible I would have done that long back.

Frank · May 6, 2020, 1:20am

@Spikerguy At present, there seems to be no good solution, so I have to send it back for repair.

tsangyoujun · May 9, 2020, 2:46am

@Spikerguy please see the return shipping details (https://www.khadas.com/shop-faq).

fkaraokur · October 20, 2020, 1:45pm

vim 3 can’t get into upgrade mode. I have manjaro on my sd card and I am trying to boot from this disk.

Before, I flashed android with USB Tool tool. While doing this flashing, pressing the middle button 3 times enters the boost mode. But when I plug in the sd card and do the same thing, the android always opens. Does not boot to sd card.

numbqq · October 20, 2020, 1:47pm

Please long press POWER key to boot from SD card.

fkaraokur · October 20, 2020, 1:55pm

He did not notice. same again. I tried it maybe 50 times.
But when you connect it to the computer and press the middle button 3 times on the USB TOOL tool, it immediately changes the mode.

Vladimir.v.v · October 20, 2020, 4:25pm

Hi, is it possible to replace the SD-card? preferably SanDisk or Samsung and check again.

Have you previously loaded into the SD-card using this algorithm?

fkaraokur · October 20, 2020, 5:30pm

I used 3 different sd cards. (toshiba, samsung and panasonic)

I’ve done these operations over and over again. It’s been 2 months since I bought my vim3. And I’ve flashed too many times. Based on user experience I say
“USB TOOL external upgrade mode is not stable.”

3 blue lights are on and nothing else is happening. The system continues to boot. Before, I was overcoming this without knowing how. But now I haven’t been able to, although I have tried many times. Maybe I’m incompetent.

Vladimir.v.v · October 20, 2020, 6:07pm

Please clarify, does the Android system boot from eMMC internal memory without any problems?

fkaraokur · October 20, 2020, 7:32pm

emmc also has android. and it works smoothly. Android constantly boots up because it can’t go into upgrade mode anyway.

Vladimir.v.v · October 20, 2020, 7:35pm

Look from Android, sd slot reads sd cards?

fkaraokur · October 20, 2020, 7:37pm

yes it recognizes all the cards. And it gives a fix warning because it is partitioned. But he sees the cards without any trouble.

Vladimir.v.v · October 20, 2020, 8:01pm

Have you updated Android, maybe there is a compatibility problem?

numbqq · October 21, 2020, 1:29am

Hello @fkaraokur

What you realy want to do ? Upgrade the firmware from eMMC or just boot firmware from the SD card?