RUT955 Modem Firmware update process error

Hi my RUT955 has some issues with modem upgrade via GUI.
Tried to update modem firmware from GUI, and it does nothing in the end.
Just shows “Modem update is in progress… Do not power off the device.” for a very long time…
From CLI command
dfota -u
i get this error:

BusyBox v1.34.1 (2024-01-12 11:31:11 UTC) built-in shell (ash)

    ____        _    ___  ____
   |  _ \ _   _| |_ / _ \/ ___|
   | |_) | | | | __| | | \___ \
   |  _ <| |_| | |_| |_| |___) |
   |_| \_\\__,_|\__|\___/|____/
-----------------------------------
     Teltonika RUT9 series 2024
-----------------------------------
   Device:     RUT955
   Kernel:     5.4.259
   Firmware:   RUT9_R_00.07.06.3
   Build:      9b07149879
   Build date: 2024-01-12 17:01:34
-----------------------------------
root@Teltonika-RUT955:~# dfota -u
Preparing for gsm.modem0 update!
Searching for updates...
Update found! Update size: 22212376
Preparing system for update!
Found cmd port: /dev/ttyUSB4
Starting download!
[check_service:52] error: Failed to load `.system.uci-vUanP5` package
[check_service:52] error: Failed to load `.network.uci-agCTPe` package

how to fix this?

ok i remove this files

cd /etc/config/
rm .network.uci-agCTPe
rm .system.uci-vUanP5
reboot

now this stop on Starting download! for long time…

BusyBox v1.34.1 (2024-01-12 11:31:11 UTC) built-in shell (ash)

    ____        _    ___  ____
   |  _ \ _   _| |_ / _ \/ ___|
   | |_) | | | | __| | | \___ \
   |  _ <| |_| | |_| |_| |___) |
   |_| \_\\__,_|\__|\___/|____/
-----------------------------------
     Teltonika RUT9 series 2024
-----------------------------------
   Device:     RUT955
   Kernel:     5.4.259
   Firmware:   RUT9_R_00.07.06.3
   Build:      9b07149879
   Build date: 2024-01-12 17:01:34
-----------------------------------
root@Teltonika-RUT955:~# dfota -u
Preparing for gsm.modem0 update!
Searching for updates...
Update found! Update size: 18224041
Preparing system for update!
Found cmd port: /dev/ttyUSB3
Starting download!
Connection Reset By Peer 
root@Teltonika-RUT955:~# dfota -u
Preparing for gsm.modem0 update!
Searching for updates...
Update found! Update size: 18224041
Preparing system for update!
Found cmd port: /dev/ttyUSB4
Starting download!
Firmware update download was unsuccessful. Error: 28 ErrorCode: 173
Reseting modems due error!

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