Flashing just the kernel

korinel

I am using a May 2017 Ubuntu firmware on my RK3399, but I notice that there is a November 2017 firmware update, which presumably has some improvements.  Can anyone say what those improvements are, whether there are any issues with them, and is it possible to just flash the kernel, keeping the filesystem as is?

leung先森

yes, just flash the block of the kernel part.
http://en.t-firefly.com/doc/product/info/id/263.html#upgrade_tool

maarten

I have tried out the November image. Generally it works well (haven't tried out earlier images, so I can't compare), but the sound card wasn't found. May be a solvable issue, I haven't tried hard.

leung先森

maarten Posted at 2/14/2018 07:36
I have tried out the November image. Generally it works well (haven't tried out earlier images, so I ...

no sound from hdmi and earphone ?

maarten

1. aplay -l

Copy the code

did not list any soundcards, so no, no hdmi and no earphone.

leung先森

maarten Posted at 2/26/2018 04:20
did not list any soundcards, so no, no hdmi and no earphone.

1. root@firefly:~# aplay -l
   
2. **** List of PLAYBACK Hardware Devices ****
   
3. card 0: rockchiprt5640c [rockchip,rt5640-codec], device 0: ff890000.i2s-rt5640-aif1 rt5640-aif1-0 []
   
4.   Subdevices: 1/1
   
5.   Subdevice #0: subdevice #0
   
6. card 1: HDMICODEC [HDMI-CODEC], device 0: ff8a0000.i2s-i2s-hifi i2s-hifi-0 []
   
7.   Subdevices: 1/1
   
8.   Subdevice #0: subdevice #0
   

Copy the code

I have no idea what s going on your board ,  try the newest firmware.

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