Why nrf52 is not visible on discovering bluetooth devices?

[Kiryl]

I updated new firmware on nrf52. After that nrf52 was still visible "nrf Toolbox" Android app. It seems I didn't do anything wrong but when next time turned on nrf52 and scanned it then it wasn't found. I tried many times to scan again. How to make it visible again on scanning?
Thank you.

[endnode]

What exact firmware you flashed? If you suspect your scanner failing then you need to use different one. Use nRF Connect app for Android or iOS. If you really "lost" the device then go back to some older 100% working FW and debug your "new" one again.

[Madan]

i am also facing same problem if u found any solution please let me know

[endnode]

Always file new thread (because believe or not chance that your problem has the same root cause as Kiryl's is low). Also provide some reasonable information, both you and Kiryl said basically nothing. (if there should be response equally shitty as your bug report it would be "have you turned it off and on again?"). Actually 99% of problems here don't really get resolve by someone's answer but just by better debugging on the originator's side. So file new question where you describe in detail what HW you have, what FW you have, where/how you get it, how you load it there, how it behaves, what additional steps you do, what you expect to happen and what happened instead. And there is good chance that while writing down all these information you will also find where you are doing mistake (or start reading about the steps you don't understand right now). Truth is out there;)

[ab]

hello i find this problem when i download new program not firmware

when you find the answer tell us please

thank you Best Regards

[run_ar]

If you cannot see your device on the scanner you might also want to check that your peripheral is actually advertising. What type of device is it? are you sure it's not connected to automatically by some device?