How to install at_client to Thingy:91?

[Yusuke]

I got Thingy:91 and want to install at_client to it, but it doesn't work well.

What I did is

1. Check out a pull request  and update firmware referring to this link

2. Connect j-link and usb to Thingy:91.

3. Open LTE Link Monitor.

It always restarts and never accepts at command.

Any tips?

[Hoang]

hi Yusuke, 

Have you tried to flash at_client.hex for your THINGY:91? 

You can try: 

Use nRF91DK and Connect the Thingy:91 to the nRF9160DK board’s “Debug out” port using a 10-pin JTAG cable. 

And, try to flash the: thingy91_at_client.hex

You can read more on this link

Hope it can help

Hoang Nguyen

[Yusuke]

Hi, Hoang, thank you for your comment.

Do I have to use nRF9160 DK board to flash at_client firmware to Thingy:91?

That's inconvenient.

[Hoang]

Hi Yusuke, 

the current status: YES. We must use nRF91 DK to program fro THINGY:91 

Goodluck

Hoang Nguyen

[Hoang]

you can read more an ARMv8 programmer/debugger

[Yusuke]

Thanks a lot!

I have J-link and it should support Cortext M33
https://www.embitek.co.jp/product/jlink-compare.html

Can I use J-link to flash programs to Thingy:91?