OOWOW How-To

Write OOWOW image to removable storage

Need replace /dev/sdX to actual device node name

curl -L http://dl.khadas.com/products/oowow/system/vim1s-oowow-latest-sd.img.gz \
| gzip -dc | dd conv=fsync,notrunc of=/dev/sdX

VIM1

curl -L http://dl.khadas.com/products/oowow/system/vim2-oowow-latest-sd.img.gz \
| gzip -dc | dd conv=fsync,notrunc of=/dev/sdX

VIM2

curl -L http://dl.khadas.com/products/oowow/system/vim2-oowow-latest-sd.img.gz \
| gzip -dc | dd conv=fsync,notrunc of=/dev/sdX

VIM3

curl -L http://dl.khadas.com/products/oowow/system/vim3-oowow-latest-sd.img.gz \
| gzip -dc | dd conv=fsync,notrunc of=/dev/sdX

VIM3L

curl -L http://dl.khadas.com/products/oowow/system/vim3l-oowow-latest-sd.img.gz \
| gzip -dc | dd conv=fsync,notrunc of=/dev/sdX

VIM4

curl -L http://dl.khadas.com/products/oowow/system/vim4-oowow-latest-sd.img.gz \
| gzip -dc | dd conv=fsync,notrunc of=/dev/sdX

Edge

curl -L http://dl.khadas.com/products/oowow/system/edge-oowow-latest-sd.img.gz \
| gzip -dc | dd conv=fsync,notrunc of=/dev/sdX

Check whats a latest oowow image

check latest oowow sd image

curl -s -I http://dl.khadas.com/products/oowow/system/${BOARD}-oowow-latest-sd.img.gz | grep Location:

BOARD := [ edge | edge2 | vim1 | vim1s | vim2 | vim3 | vim3l | vim4 ]

check latest oowow sd image version for vim3 example

~$ curl -s -I http://dl.khadas.com/products/oowow/system/vim3-oowow-latest-sd.img.gz | grep Location:
 
Location: http://dl.khadas.com/products/oowow/system/versions/vim3/vim3-oowow-230227.000-sd.img.gz

Resolve boot-up problem

if Boot OOWOW doesn't works via hold FUNCTION and short press RESET

manualy-restore-oowow-spi-flash-firmware
boot-up-oowow-from-sd-card

Manualy restore OOWOW SPI-Flash firmware

For same cases if OOWOW can't bootup automaticly or via special button shortcuts

download XXX-oowow-latest-spi-upgrade-sd.img.gz from http://dl.khadas.com/products/oowow/system
write image XXX-oowow-latest-spi-upgrade-sd.img.gz to SD-card
boot-up from SD-card and wait upgrade process will be complited
remove SD-card and reboot device

replace XXX to right board name vim4 edge2 vim1s …

Edge2 restore OOWOW another way

Boot-up OOWOW from SD-card

In most cases, it will be same suitable to use any other removable storage like USB-Flash etc

For same cases if embedded OOWOW can't bootup from SPI-Flash. OOWOW can be started from SD-card anytime.

download XXX-oowow-latest-sd.img.gz from http://dl.khadas.com/products/oowow/system/
write image XXX-oowow-latest-sd.img.gz to SD-card
boot-up from SD-card

replace XXX to right board name vim4 edge2 vim1s …

Write custom OS image into eMMC from removable storage

copy your OS image into any removable storage SD / USB Flash , etc (formatted by exfat or ext2/3/4 or fat)
start OOWOW by press FUNCTION + RESET
exit from wizard
plug removable storage with OS image
choose this image to write by menu → Write image to eMMC and up to .. mounts

Supported images:

raw images dd suitable - .img
compressed images .img.xz lzma , .img.gz gzip, .img.zst zstd

Install online OS image without Ethernet

All devices have on-board Wi-Fi module, also can used for for Internet access.

Configure Wi-Fi connection one time / automaticly will be used next time
or can use easy-wi-fi mode

Headless usage

OOWOW easily can used without display and keyboards.

OOWOW and Smartphone

OOWOW easily can controlled by smatphone

write custom OS image into eMMC from removable storage

copy your OS image into any removable storage SD / USB Flash , etc (formatted by exfat or ext2/3/4 or fat)
start oowow by press FUNCTION + RESET
exit from wizard
plug removable storage with OS image
choose this image to write by menu → Write image to eMMC and up to .. mounts

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