# FreeRTOS Demo failed on STM32L475-IOT board **URL:** \ **Category:** AWS\ **Created:** [October 7, 2019, 1:09pm UTC](https://forums.freertos.org/t/freertos-demo-failed-on-stm32l475-iot-board/8956 "2019-10-07T13:09:56Z")\ **Posts on this page:** 1\ **Page:** 1
**Author:** ![system](https://d2v6vdsk2p900z.cloudfront.net/original/1X/7fc8fdb729c645aab5b20282bbe34e57cb407be6.jpeg) [@system](https://forums.freertos.org/u/system)\ **Post date:** [October 7, 2019, 1:09pm UTC](https://forums.freertos.org/t/freertos-demo-failed-on-stm32l475-iot-board/8956/1 "2019-10-07T13:09:56Z")
**[PeakIoT](https://forums.aws.amazon.com/profile.jspa?userID=494040)** wrote on October 07, 2019: After following the instructions in the “First Steps” and “Getting Started” tutorials, I updated the provisioning information for my Device in the aws\_clientcredentials.h and aws\_clientcredentials\_keys.h. After compiling and flashing the application, the command line had the following response: 0 530 [Tmr Svc] WiFi module initialized. 1 560 [Tmr Svc] Write certificate… 2 576 [Tmr Svc] ERROR: Failed to provision device certificate. 49 3 582 [Tmr Svc] Device credential provisioning failed. 4 3675 [Tmr Svc] WiFi connected to AP xxxxxxxxxx. 5 3680 [Tmr Svc] IP Address acquired 192.168._ **.** _ 6 3685 [Tmr Svc] WiFi firmware version is: C3.5.2.3.BETA9 7 3690 [Tmr Svc] [WARN] WiFi firmware needs to be updated. 8 3696 [iot\_thread] [INFO][INIT][3696] SDK successfully initialized. 9 8801 [iot\_thread] [INFO][DEMO][8800] Successfully initialized the demo. Network type for the demo: 1 10 8810 [iot\_thread] Attempting automated selection of Greengrass device 11 8923 [iot\_thread] About to close socket. 12 8937 [iot\_thread] Socket closed. 13 8941 [iot\_thread] JSON request could not connect to end point 14 8947 [iot\_thread] Auto-connect: Failed to retrieve Greengrass address and certificate. 15 8955 [iot\_thread] ----Demo finished---- Can anyone tell me how I can resolve the issue from line #2 “ERROR: Failed to provision device certificate. 49”? I used the certificate created by the Thing registration process Thanks for your help, Steve