Download program is OK, but the mobile phone couldn't find it

[tony55723]

Hi,

I would like to ask, if I just want to "Download program", what components on the schematic diagram are needed?

Download program is OK, so first make sure that the "a" part of the components are normal, and then try to replace the remaining components

Thanks

[JONATHAN LL]

Hi tony,


This schematic of the LDO layout with out the optional 32KHz crystal.
You can also remove the N.C (not Connected) component C6.

Are you talking about a custom PCB that you have designed?

You are able to Flash the program to the PCB but you are not able to detect the device over BLE?

Could you share your GERBER or PCB layout files if that is the case?

Regards,
Jonathan