Hi all,
I am new here. I found a A20-OLinuXino-LIME2 in dumpster the other day and it looks good. I wanted to make a home network data folder with it, like simple folders shared over smb. Since this board has gigabit ethernet and sata, it can actually be fast data transfer (I expect).
I haven't tried to power up the board yet, I hope it works.
The problem is:
I cannot see the variant of the board on it, only text printed on it is :A20-OLinuXino-LIME2 revG.2 2017. It looks like having a NAND flash chip (I cannot read the text, mostly disappeared).
And following connectors are missing (with some components I won't bother to list)
3 power button, battery connector, power jack, SATA and SATA power connector, LCD pin header.. See the images please. It does not look like they were unsoldered.
Is this an unpopulated board? There is no info on the internet about it.
Will this work as it is? if I solder a power jack or try to power up from USB OTG?
I can see the caps in dataline of SATA are missing, okay I can solder some, but also the power circuit is missing for SATA, If I externally supply the SATA 5V and solder the caps, maybe it works?
(https://i.postimg.cc/SN3PQ98P/20251031-093114563-i-OS.jpg)
(https://i.postimg.cc/QxwzN71C/20251031-093125213-i-OS.jpg)
This is a customized board for a company that used it in their 3D printer product. The board was used by Ultimaker in their printer products (search online there is a lot of info). This board is not sold via our shop or official distributors. It lacks power jack and SATA but it also has other modifications. The main thing is that this variant is made to be powered via the USB. We are not really familiar with the usage and requirements in their setup, so we can't tell you exactly what has to be done to revert it to the general-purpose usage, but be careful with the power jack, if you can power the board via the USB just use that and do not solder or attempt to use the power jack (since there are other changes like missing FETs and so on).
You can just use our latest Linux image or Armbian and it should work just fine (as long as you don't use the SATA and you power from externally powered USB). Check here:
https://raw.githubusercontent.com/OLIMEX/OLINUXINO/master/DOCUMENTS/OLIMAGE/Olimage-guide.pdf
I believe that this board has eMMC, not NAND.
The real revision G2 files can be found here (e.g. for the general-purpose version): https://github.com/OLIMEX/OLINUXINO/tree/master/HARDWARE/A20-OLinuXino-LIME2/2.%20Older%20hardware%20revisions/A20-OLinuXino-LIME2%20hardware%20revision%20G2