AT%XRFTEST => ERROR =>

[Otti]

We have 20 pieces of the nRF9160 on a test PCB. We send the commands AT% XRFTEST. With 18 pieces that works very well. With 2 pieces we have the Error:

ERROR<CR><LF>

<ESC>_[1;31m<err> at_host: Could not send AT command to modem: -8<ESC>_[0m<CR><LF>

We also tried with the command AT% XPRODDONE = 1, to enable the AT% XRFTEST commands; ERROR comes here too.

We use Modem_FW "mfw_nrf9160_1.1.0.zip" and "Device_FW serial_lte_modem"

[Øyvind]

Hello, 

This is something we see often when the device is not soldered sufficient. Can you please try resoldering two failing boards?

Kind regards,
Øyvind