FC20 BT doesn't work

I’m using Quectel EVB(UMTS & LTE EVB kit).

I checked wifi function works well,
but BT function could not be powered.

I turn the switch to BT and send the commend below.

why FC20 return the “ERROR” message for AT+QBTPWR=1?
I read the manual serveral times, but there is not any information.

Deos anybody know the possible reason for this problem?

[2024-12-06 18:03:33:321_S:] AT+QCFG=“spi/set”,1
[2024-12-06 18:03:33:326_R:] AT+QCFG=“spi/set”,1

[2024-12-06 18:03:33:337_R:] OK
[2024-12-06 18:03:38:811_S:] AT+QBTPWR=0
[2024-12-06 18:03:38:816_R:] AT+QBTPWR=0

[2024-12-06 18:03:38:867_R:] OK
[2024-12-06 18:03:47:699_S:] AT+QBTPWR=1
[2024-12-06 18:03:47:704_R:] AT+QBTPWR=1

[2024-12-06 18:03:53:937_R:] ERROR

Thank you.

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Hi @smin0711
Can you please share LTE module and firmware information.

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Please refer below information.
LTE module: EG25-G
Firmware: EG25GGBR07A08M2G

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Hi smin0711,

The BT UART hardware of the UMTS EVB is not connected, If you want to test Bluetooth function you must use our LTE-OPEN-EVB.

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@smin0711
Please try with using latest FW and follow below steps :

EG25 module supports bluetooth feature only with R08 based firmware.

For using bluetooth feature on EG25 with R08 based fimware on LTE standard EVB requires some changes in firrmware files , in case these changes are not done EG25 is unable to use the bluetooth feature.

Change steps:

1-access the file /usr/bin/synergy.sh in side the module’s firmware.

2-modifyt the file “synergy.sh”

The mentioned UART_PORT below should be changed to /dev/ttyHS0

once this modification is done and saved , the module can use Bluetooth feature following the Bluetooth Application Note :

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Thank you all,
It was board hardware issue and after replacing new board it works well.