we designed and developed a board with SL6087 and XM0110 for a tracking application.
Trying to upgrade the firmware from 7.47 to 7.52 using Developer Studio 2.3.2 we encountered a problem that bricked the module: the result is that now neither windows nor linux can see the attached usb device. Unfortunately we lost the error message. we guess our only option now is to use JTAG to flash a firmware on the module but we can’t find any guide to do that. We have a openOCD JTAG for ARM platform correctly connected to the module as described in the Sierra WM_DEV_WUP_APN_001 Rev003.
Thanks in advance, any suggestion will be very apprecciated.