Olinuxino A20 (EMMC) can't boot anymore

[Nikorun]

Hi,

I bought an A20 and suceeded to install Debian on it but long time ago it doesn't work anymore.

I have tried many different images but no one start until login prompt.
It's an Olinuxino-Micro-A20 rev E board.

I don't know what to do more to make it works, i could dismiss and use another board but I have a LCD panel with it that I can't use anymore ... :-(

The power supply is a 12V-5A one, the voltage is monitored and stable between 12.4 and 12.6 V.
the SDCARD has been tested with h2testw, with good results (Writing speed: 7.23 MByte/s, Reading speed: 17.6 MByte/s)

below are links to boot console messages, for 2 different Armbian images, but a lot of another ones had been tested without succes. Hope it can helps and hope you can help me ..

Boot on Armbian jessie : http://213.223.138.49/a20/boot-console-armbian_5.14_jessie-20160731.txt
Boot on Armbian Xenial : http://213.223.138.49/a20/boot-console-armbian_5.14_xenial-20160731.txt

regards,

Nicolas

[igorpec]

Check this post:
http://forum.armbian.com/index.php/topic/1626-armbian-boot-process-unification

[Nikorun]

Hi Igorpec,

Thanks for your advise, I had a quick overview of the post but unfortunatly I think this requires more skils than I actualy have.
I understand that the goal of this post is to tweak U-boot in order to match some particular requirements and i guess I would better understand my problem if I upgrade my knowloedge in the boot process, isnt'it ?

I'll do my best but for the moment (after have tried many differents images) I don't really know what I could experiment to solve my problem, supposing it's not an hardware problem, wich i suppose it is by now.

Thanks again,

Nicolas