It seems still have problem to explain the strange combination: S/N 1303xxx, Ver3.0 adapter board inside .......
Is it SDS7102V ?
This is really strange. I have lot of documents about S/N 71021303xxx
(SDS7102V)
Something is very strange if there is V3.0 adapter board inside and it is S/N71021303xxx serial.
Is this unit really left from original Owon factory as it is now.
I can not proof it of course - all is possible.
But in this point now, without more data
it feels like someone lie.
Btw, is there scope back, scope carton AND scope also display exactly same serial number?
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It need also note that I have personally seen also that inside same version adapter board (example SDS7102_CON_3.2) there may be small differencies. Perhaps some times after changes someone have forget update also print mask.)
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Btw, about communication with chinese.
Try small example.
Write your letter as you do it but just before send, copy paste it to example google translator and translate it to chinese. After then, copy paste this translation agen to google translator and translate this chinese letter to english. Now, how you answer this letter?
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Bit modified/simplified/imagined old case with Owon:
I: I need spare part. I need adapter board version 3.2 for SDS7102V....
O: What is adapter board?
I: it is board between PSU and main board...
O: What you mean about adapter board, no need adapter board, please send picture what you want...
I: here is picture (picture including board version)
O: Ok, we can send it to you.
later...
I get exactly this board what was in my picture. I think if they copy my picture and made it....hahah)