In system update of BG96 firmware

We are using BG96 in a GNU/Linux embedded system. We used QFlash 2.0 for Firmare Update of BG96 together with kernel 4.14. Now we moved to kernel 5.10 and QFlash is no longer working. Quectel FAE told us to use QFirehose v1.4.11, we tried it already with no success on kernel 4.14, and also QFirehose failed. After the update the device is no longer usable,:

[002.154]: successful, wait module reboot
[ 2064.786216] usb 2-1: USB disconnect, device number 2
[ 2064.817396] option1 ttyUSB0: GSM modem (1-port) converter now disconnected from ttyUSB0
[ 2064.840172] option 2-1:1.0: device disconnected
[ 2064.852770] option1 ttyUSB1: GSM modem (1-port) converter now disconnected from ttyUSB1
[ 2064.863232] option 2-1:1.1: device disconnected
[ 2064.872294] option1 ttyUSB2: GSM modem (1-port) converter now disconnected from ttyUSB2
[ 2064.881723] option 2-1:1.2: device disconnected
[ 2064.890825] option1 ttyUSB3: GSM modem (1-port) converter now disconnected from ttyUSB3
[ 2064.900192] option 2-1:1.3: device disconnected
[ 2064.910639] qmi_wwan 2-1:1.4 wwan0: unregister ‘qmi_wwan’ usb-ci_hdrc.1-1, WWAN/QMI device
[003.168]: fail to fopen /sys/bus/usb/devices/2-1/uevent, errno: 2 (No such file or directory)


Sorry for late response.
So after upgraded, the device not working but how about module?
Does it in a reboot loop or ?