Dear Liao,
There is a lot of confusion because apparently Seeed has been shipping many different versions of the DSO Nano under the same product names. For instance the latest “V2” units came with a new firmware update boot loader, so the old firmware files would not work. The community eventually found out how to deal with this, without any help from Seeed. Now the latest “V3” products, and even some sold as “V2”, have a new LCD controller so the older firmware is not compatible any longer. All these changes came without any notice from your part, the specifications on your store “Depot” were not updated, and the specifications in the Wiki were also not updated.
Most users expect to run the “BenF” firmware on their devices, which is considered widely superior to the stock firmware. Since the hardware has changed in the last shipped DSO Nano units, this firmware won’t work on them. Maybe your company should try to approach “BenF” in order to have his firmware support the new models you are shipping. Also supporting the community in their efforts to port the open-source firmware to these new models would be very welcome. Please see viewtopic.php?f=22&t=4823
Best regards,
Tormod