I have seen that the most difference between an original BMW ICOM A2 and a clone is that the original has wifi capability, whereas the clone does not.
Today the Eobd2 customer services tell me that their BMW ICOM A2+b+c diagnostic & programming tool now has wifi capability. And I saw a lot of people comment ICOM A2 clones with wifi capability that work reliably.
On the more technical side, I’ve encountered through the grape vine that the new units that they add as a wifi Module is, “a Sparklan WMIA-199N based on an ATHEROS MIMO chip.”
Apparently it is possible to, “get a fully functional Mini PCI port between the layers”(of the ICOM A2’s internal circuit boards that would allow for incorporating a wifi mod).
You can get some information of BMW ICOM A2+B+C below:
BMW ICOM A2+B+C Functions:
A2 – OBD diagnostic supporting MOST, D-CAN and K-CAN protocols
B – Diagnostic via most bus, and have connection to A-interface via USB connection.
C – 20-pin cable for old models.
BMW ICOM A2+B+C Special Features Compared with BMW ICOM:
The modified BMW ICOM A2 for vehicles with OBD access receives a significantly more powerful processor and more storage capacity. Robust aluminium case will help to avoid damage when using in harsh environments.
To protect the most connector, the BMW ICOM B for vehicles with optical most access will be equipped with a soft cover made of rubber instead of the former plastic cap.
The BMW ICOM C for old series with a diagnostics socket will be additionally equipped with an approx. 20 cm long cable, which facilitates the connection of the BMW ICOM A2 and makes storage in the engine compartment easier.