Hi there !!
My MECOOL M8S Pro W won’t boot to CoreElec. It goes straight to TWRP. I am using a USB Drive, not an SD card. I have tried both USB ports.
I used the correct DTB file (gxl_p281_2g.dtb) as dtb.img.
Any help please ??
I forgot to mention that I have Nexus ATV installed, from Freaktab.
[ROM] Mecool M8S PRO W TVStock Nexus ROM (Android TV 7.1)
Just curious. Does your device come with TWRP or did you install it?
I don’t know if this will have or not. However, I always try to first perform a factory reset when the 1st time I configure my device to boot CE.
It was installed with the ROM that I installed, the one from FreakTab.
That sounded like you have flashed your unit with a 3rd party ROM? I don’t know if any 3rd party ROM comes with its u-boot environments (different from the stock). Anyway, I am no expert in this matter. However, I would try the following if I were you:
- Try using the SD slot with an SD card to see if that will work.
- If the above does not work, try with other DTB file.
- If that still does not work, re-install the original ROM to see if that will work.
Mine boots fine when I use the SD card slot. I think that the first time I had to keep pressing the menu button before it booted to CoreELEC.
It worked !!! From SD. Now to find a way for the remote to work !!!
Done… Used this method.
Does wifi work in your device? I ask because of this post of mine:
Thank you
Hooray!! 
Another Frankenstein installation is born. 