Firmware R73 and at+wopen=3 respond


I developping an embedded application that writes some objects into the flash. Sometimes I need to clear the flash so I do:


As you can notice the at+wopen=3 returns ERROR (but the flash is cleared).

I notice this behavior since I update the firmware from the R72 to R73.

Does somebody notice the same “problem” ?



i have faced the same problem. i use fastract supreme 20 Q2686 , firmware 663g.

You can check this link

Do you solve it ?

no i havent solved it.
While it can perform the delete operation although it retuns ERROR, it is not a problem for me. so i stop searching for a solution. But if we can find the reason or can find a solution then it will be clear to understand what is happening.