asset_tracker does not work with firmware v1.0.0

[Yusuke]

Environment

- DK 0.8.2 in which SB44 is cut, and P1 and P2 are connected
- firmware v1.0.0
- program : asset_tracker
- SIM: iBasis

Before updating firmware, asset_tracker worked fine. 

However, after updating, LED3 is always blinking and LED4 is off.
What I do is to write the program to DK, push reset button, and wait for more than 5 min.
at_client program and LTE Link Monitor works out with v1.0.0.

this is log

SPM: NS image at 0xc000
SPM: NS MSP at 0x2002aa00
SPM: NS reset vector at 0x142f1
SPM: prepare to jump to Non-Secure image.
***** Booting Zephyr OS v1.14.99-ncs2-rc3 *****
Asset tracker started
Connecting to LTE network. This may take several minutes.
Connected to LTE network

Any idea to solve this?

[Didrik Rokhaug]

As mentioned in my previous reply (https://devzone.nordicsemi.com/f/nordic-q-a/49650/asset_tracker-does-not-work-with-firmware-v1-0-0/210052#210052), using echo in the same way as Markus Tacker is not possible on Windows. You might find some workaround by searching on the internet, but the easiest approach is to use a Linux machine or VM. httpie should to the best of my knowledge work on Windows 7 as normal, and can be installed by following the instructions here:

https://github.com/jakubroztocil/httpie#installation

If the "AT%CMNG=1" response is empty, this means that you have lost your certificates, yes.

If you still are not able to recover your certificates, I recommend opening a new case, as it is hard to see replies on this one.