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Here a picture from the back side. SMD parts become even tinier. I tried to scan it. But I had to realize my LED Office scanner has no deepfield sharpness...
But I found another solution. Fortunately, a Likebook Mars with a broken screen was auctioned on ebay on Thursday. I could bid the item very cheaply and the package was delivered today.
I replaced the boards and got a working unit again. Yippee!
To make sure I tried to enter recovery mode and bootloader mode. No problem. For drivers I used 'rkDumper_105_obc67 + debug.zip'.
The new board has a newer revision 1.5 dated 20180907, but looks the same.
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