2015-06-08, 08:21
Google search says its a unknown error so not much information on that
It could be, the AT commands aren't supported by your operator. Someone mentioned using a PDU converter to get AT commands working, but I haven't looked into it much. Here is the repo for the converter
It could be, the AT commands aren't supported by your operator. Someone mentioned using a PDU converter to get AT commands working, but I haven't looked into it much. Here is the repo for the converter