renedis

You need to change the DTB file to version 5.88.190601 - 5.1.5
Located on the SD card: /boot/dtb-5.1.7-sunxi64/allwinner/sun50i-h6-orangepi-3.dtb
That fixed it for me on 5.88 dev 5.17.
 
Version linux-dtb-dev-sunxi64 version 5.90.190630 should work too, but I've not tested it.
 
Check post: 
 
 
 
 

Hi all,
 
I cannot post to the H6 forum so I cannot reply to @renedis with the link to download the Armbian_5.88.190601_Orangepi3_Ubuntu_bionic_dev_5.1.5 file he asked.
 
For him and other users that actually cannot run the Ubuntu image for Orange Pi 3 I uploaded in my OneDrive the working image: Armbian_5.88.190601_Orangepi3_Ubuntu_bionic_dev_5.1.5
PS: please can someone move to the Allwinner H6 forum? Thank you.

hi, you need to overid the dtp file in here
 
ll /boot/dtb-5.1.7-sunxi64/allwinner/
total 968
drwxr-xr-x 3 root root  4096 Jun 15 12:19 ./
drwxr-xr-x 3 root root  4096 Jun 15 12:21 ../
drwxr-xr-x 2 root root  4096 Jun 15 12:19 overlay/
-rw-r--r-- 1 root root 33668 Jun 14 23:52 sun50i-a64-amarula-relic.dtb
-rw-r--r-- 1 root root 35345 Jun 14 23:52 sun50i-a64-bananapi-m64.dtb
-rw-r--r-- 1 root root 34228 Jun 14 23:52 sun50i-a64-nanopi-a64.dtb
-rw-r--r-- 1 root root 35180 Jun 14 23:52 sun50i-a64-olinuxino.dtb
-rw-r--r-- 1 root root 35776 Jun 14 23:52 sun50i-a64-orangepi-win.dtb
-rw-r--r-- 1 root root 34570 Jun 14 23:52 sun50i-a64-pine64-lts.dtb
-rw-r--r-- 1 root root 35082 Jun 14 23:52 sun50i-a64-pine64-plus.dtb
-rw-r--r-- 1 root root 35004 Jun 14 23:52 sun50i-a64-pine64.dtb
-rw-r--r-- 1 root root 36584 Jun 14 23:52 sun50i-a64-pinebook.dtb
-rw-r--r-- 1 root root 34582 Jun 14 23:52 sun50i-a64-sopine-baseboard.dtb
-rw-r--r-- 1 root root 36526 Jun 14 23:52 sun50i-a64-teres-i.dtb
-rw-r--r-- 1 root root 31397 Jun 14 23:52 sun50i-h5-bananapi-m2-plus-v1.2.dtb
-rw-r--r-- 1 root root 31004 Jun 14 23:52 sun50i-h5-bananapi-m2-plus.dtb
-rw-r--r-- 1 root root 29328 Jun 14 23:52 sun50i-h5-emlid-neutis-n5-devboard.dtb
-rw-r--r-- 1 root root 29798 Jun 14 23:52 sun50i-h5-libretech-all-h3-cc.dtb
-rw-r--r-- 1 root root 32108 Jun 14 23:52 sun50i-h5-nanopi-k1-plus.dtb
-rw-r--r-- 1 root root 29396 Jun 14 23:52 sun50i-h5-nanopi-m1-plus2.dtb
-rw-r--r-- 1 root root 29316 Jun 14 23:52 sun50i-h5-nanopi-neo-core2.dtb
-rw-r--r-- 1 root root 29412 Jun 14 23:52 sun50i-h5-nanopi-neo-plus2.dtb
-rw-r--r-- 1 root root 29061 Jun 14 23:52 sun50i-h5-nanopi-neo2-v1.1.dtb
-rw-r--r-- 1 root root 29065 Jun 14 23:52 sun50i-h5-nanopi-neo2.dtb
-rw-r--r-- 1 root root 29991 Jun 14 23:52 sun50i-h5-orangepi-pc2.dtb
-rw-r--r-- 1 root root 29918 Jun 14 23:52 sun50i-h5-orangepi-prime.dtb
-rw-r--r-- 1 root root 29138 Jun 14 23:52 sun50i-h5-orangepi-zero-plus.dtb
-rw-r--r-- 1 root root 29143 Jun 14 23:52 sun50i-h5-orangepi-zero-plus2.dtb
-rw-r--r-- 1 root root 27608 May 30 22:14 sun50i-h6-orangepi-3.dtb <----------------------------------------
-rw-r--r-- 1 root root 27359 Jun 14 23:52 sun50i-h6-orangepi-lite2.dtb
-rw-r--r-- 1 root root 26874 Jun 14 23:52 sun50i-h6-orangepi-one-plus.dtb
-rw-r--r-- 1 root root 27617 Jun 14 23:52 sun50i-h6-pine-h64.dtb