Bluetooth init failure in Peripheral LBS sample on Thingy 53

RE: Bluetooth init failure in Peripheral LBS sample on Thingy 53

andychess — Fri, 17 Jan 2025 19:19:15 GMT

In fact, I just solved the problem. All of the answers are on the website, sadly just not all in the same place:-). I needed to install the two merged hex versions and upload via my 52833DK. Took some trial and error but eventually, it worked.

The practical side of multi-image builds seems to be more complex that the theory lessons suggested.

I hope the dev academy will continue to cover these topics, it really is a great resource.

RE: Bluetooth init failure in Peripheral LBS sample on Thingy 53

andychess — Fri, 17 Jan 2025 14:04:19 GMT

Hi,

I've just received two Thingy53s and am experiencing exactly the same problem as DougR. The first device work flawlessly via my iPhone, the second one shows the same message as at the start of the post. I have tried erasing and loading via my nrf52833DK but that didn't solve the problem, also uploading via USB didn't help.

Any thoughts?

Many thanks in advance.

Andy

RE: Bluetooth init failure in Peripheral LBS sample on Thingy 53

DougR — Tue, 04 Apr 2023 18:32:50 GMT

Flashing the problem unit with the programmer on an nRF5340-DK worked. Thank you!

RE: Bluetooth init failure in Peripheral LBS sample on Thingy 53

Edvin — Mon, 27 Mar 2023 10:33:12 GMT

Hello,

I spoke to some of the Thingy developers. There was a bug, so downgrading will not work either. They are working on a fix, but unfortunately, it will not fix already programmed devices.

You either need to re-flash the device using a programmer, or you can try to use mcumgr to flash the devices using the serial bootloader. I have not tried the latter for the thingy. They weren't sure whether you could upload a merged image, or if you had to do one core at the time. Also, they said that you need to wait for 2 minutes (!) after issuing the command "image test" before resetting / power cycling the device.

BR,
Edvin

RE: Bluetooth init failure in Peripheral LBS sample on Thingy 53

DougR — Sun, 26 Mar 2023 22:14:44 GMT

I tried NCS downgrades (v 2.2.0, v 2.1.3) but the behavior was the same. I'm waiting on a debugger, which will hopefully be able fix that unit. I am having success with over the air firmware updates using the nRF Connect app and my other Thingy53 which had never been programmed using the serial bootloader, so I do have one unit which I can program. Thank you for your help!

RE: Bluetooth init failure in Peripheral LBS sample on Thingy 53

Edvin — Tue, 21 Mar 2023 14:13:01 GMT

Hello,

Sorry for the late reply. There seems to be some issues updating the network core via the serial bootloader, which is used in the nRF Connect for Desktop.

You can try to use an older version of NCS (so that the network core doesn't need to be updated), or you need to use a debugger to update the FW on the Thingy. I am sorry for the inconvenience.

BR,
Edvin