Problem with MOD-ZIGBEE-UEXT

[AdrianR]

Hi. I have a mod-zigbee-uext which is connected to olimex p-107 with UEXT.  I don't touch the original firmware of the mod-zigbee-uext.  I want to read what the mod-zigbee-uext returns through de uext but I can't read nothing. ¿What  must the mod-zigbee-uext return when it is connected with other board  through uext (usart)?

[RedDone]

It returns all messages formatted as constant string meaning the network and devices status. You should check whether the uart has been configured correctly.