MCUMGR FS refusing to upload files larger than 99 bytes

RE: MCUMGR FS refusing to upload files larger than 99 bytes

Tommy F Kristensen — Fri, 22 Aug 2025 11:27:49 GMT

We did actually fix it by setting

CONFIG_MCUMGR_GRP_FS_DL_CHUNK_SIZE_LIMIT=y

Best Regards

Tommy F Kristensen

RE: MCUMGR FS refusing to upload files larger than 99 bytes

Amanda Hsieh — Mon, 18 Aug 2025 15:45:12 GMT

[quote user="Tommy F Kristensen"]On the same system im trying to download files from the device to the phone, but the device crashes.[/quote]

Could you provide the log for the crash?

RE: MCUMGR FS refusing to upload files larger than 99 bytes

Tommy F Kristensen — Mon, 18 Aug 2025 11:53:13 GMT

Hi Amanda

On the same system im trying to download files from the device to the phone, but the device crashes.

Based on the earlier uploaded configs and using SDK 3.0.2 are im missing a configuration

Best Regards

Tommy F Kristensen

RE: MCUMGR FS refusing to upload files larger than 99 bytes

Amanda Hsieh — Tue, 05 Aug 2025 16:16:39 GMT

Happy to know it can help. 🙂

RE: MCUMGR FS refusing to upload files larger than 99 bytes

Tommy F Kristensen — Tue, 05 Aug 2025 15:10:53 GMT

Hi Amanda

Thanks i did solve my issue, now im able to upload files bigger than 99 bytes from the "nRF Device Manager" app

Best Regards

Tommy F Kristensen

RE: MCUMGR FS refusing to upload files larger than 99 bytes

Amanda Hsieh — Mon, 04 Aug 2025 16:47:38 GMT

Hi,

Try to enable CONFIG_FS_FATFS_LFN and increase the value of CONFIG_MCUMGR_GRP_FS_DL_CHUNK_SIZE and CONFIG_MCUMGR_GRP_FS_PATH_LEN. See Filesystem management.

[quote user=""]The App says: State: Mount point not found(14)[/quote]

Does it also happen to the "nRF Device Manager" app while uploading the file with a file size smaller than 99 bytes?

Regards,
Amanda H.