About the factor that "CUSTOM Service UUID" communication became possible after updating to IOS (IOS14.4-> IOS14.4.1)

[yokokawa]

OS in development environment ：Windows10
HARD :(Taiyo Yuden)EBSHSN Series Evaluation Board : Central / Peripherals
CPU :(Nordic) nRF52832 / ARMR Cortex-M4F 32 bit processor 28-pin Land Grid Array / 15GPIOs / SWD
builder :SEGGER Embedded Studio for ARM Release 3.34a Build 2018022300.35192 Windows x64
  2014-2018 SEGGER Microcontroller GmbH & Co. KG
  1997-2018 Rowley Associates Ltd.
 GCC/BINUTILS: Built using the GNU ARM Embedded Toolchain version 6-2017-q2-update source distribution
 Clang/LLVM: Built using the version 5.0.0 source distribution
Soft Ver:nRF5_SDK_15.3.0_59ac345

[Status]
 1) IOS14.4    : "CUSTOM service UUID" cannot communicate with the application under development, but "CUSTOM service UUID" can communicate with "nRF connection".
 2) IOS14.4.1 : "CUSTOM Service UUID" communication is possible with the app under development "CUSTOM Service UUID" communication is possible with "nRF connect".
[Question]
 "NRF connect" can communicate with "CUSTOM Service UUID" regardless of IOS version, but the app under development cannot communicate with IOS 14.4.
 The app you are developing may lack functionality. Please tell me the missing functions.

Thank you

[Simonr]

Hi

I'm sorry, but I'm afraid I need some more information to reply to your question. What's the source to the "Status" claims you have here, are these the observations of how your application behaves, or what? Does your application only work correctly with IOS v14.4.1, is that correct?

Seeing as I don't know any details about the app you are creating, and that we aren't experts at app development for iOS nor Android, I'm afraid I don't have any suggestions as to what functions might be missing. Do you see any kind of error messages when you are "not able to communicate" with your custom application?

Best regards,

Simon

[yokokawa]

Hello
The application works correctly only with IOS v14.4.1.
It has been confirmed to work with the included iOS app.
This is a question to point out to the person in charge of the app.
We also consider possible problems on the farm side.
Thanking you in advance.

[Simonr]

yokokawa said:

This is a question to point out to the person in charge of the app.
We also consider possible problems on the farm side.

 Do you refer to the nRFConnect app here or your custom iOS app? Is this a bug report or do you need any assistance with development?

Best regards,

Simon

[yokokawa]

Point it out to the person in charge of the app and ask them to confirm it.
Thank you

[Simonr]

What app are you referring to?

Best regards,

Simon