I have tried to flash it like you recommended:
buntu-mate@ubuntu-mate:~$ sudo ./fwdwl-litehostx86_64 -c MBIM -m 4 -d 1199:9090 -f /home/ubuntu-mate/
Application version: 1.0.2211.2
Modem is disconnected or not in correct state. Please ensure QMI device path is correct.
ubuntu-mate@ubuntu-mate:~$ sudo ./fwdwl-litehostx86_64 -c QMI -d 1199:9090 -f /home/ubuntu-mate/ -i
Application version: 1.0.2211.2
Image: /home/ubuntu-mate//SWI9X50C_01.05.01.00_GENERIC_001.028_000.nvu
Model ID: SWI9X50C
FW version: 01.05.01.00
Carrier string: GENERIC
Carrier PRI version: 001.028
Package ID: 000
SKU: 9999999
^[[A^[[A^C
ubuntu-mate@ubuntu-mate:~$ sudo ./fwdwl-litehostx86_64 -c QMI -d 1199:9090 -f /home/ubuntu-mate/ -i
Application version: 1.0.2211.2
Image: /home/ubuntu-mate//SWI9X50C_01.05.01.00_GENERIC_001.028_000.nvu
Model ID: SWI9X50C
FW version: 01.05.01.00
Carrier string: GENERIC
Carrier PRI version: 001.028
Package ID: 000
SKU: 9999999
Image: /home/ubuntu-mate//SWI9X50C_01.05.01.00.cwe
Model ID: SWI9X50C
FW version: 01.05.01.00
Carrier string: ?
Carrier PRI version: ?
Package ID: ?
SKU: INTERNAL
ubuntu-mate@ubuntu-mate:~$ sudo ./fwdwl-litehostx86_64 -c QMI -d 1199:9090 -f /home/ubuntu-mate/
Application version: 1.0.2211.2
Modem is disconnected or not in correct state. Please ensure QMI device path is correct.
ubuntu-mate@ubuntu-mate:~$ sudo ./fwdwl-litehostx86_64 -c QMI -d 1199:9090 -f /home/ubuntu-mate/ --force
Application version: 1.0.2211.2
Modem is disconnected or not in correct state. Please ensure QMI device path is correct.
ubuntu-mate@ubuntu-mate:~$ sudo ./fwdwl-litehostx86_64 -d 1199:9090 -f /home/ubuntu-mate/ --force
Application version: 1.0.2211.2
Unable to locate the device or determine device mode.
ubuntu-mate@ubuntu-mate:~$ lf usb
lf: command not found
ubuntu-mate@ubuntu-mate:~$ ls usb
ls: cannot access 'usb': No such file or directory
ubuntu-mate@ubuntu-mate:~$ lsusb
Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 009: ID 1199:9090 Sierra Wireless, Inc. QUSB__BULK
Bus 001 Device 004: ID 8087:0029 Intel Corp. AX200 Bluetooth
Bus 001 Device 003: ID 058f:6387 Alcor Micro Corp. Flash Drive
Bus 001 Device 002: ID 0c45:6d13 Microdia Integrated_Webcam_HD
Bus 001 Device 005: ID 27c6:5385 Shenzhen Goodix Technology Co.,Ltd. Fingerprint Reader
Bus 001 Device 006: ID 058f:6387 Alcor Micro Corp. Flash Drive
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
ubuntu-mate@ubuntu-mate:~$
I use fwdwl-litehostx86_64 from MBPL_SDK_R30_ENG6-lite.bin.tar, no luck with that…
I have EM7511 that stuck at QDL (1199:90B0) too…
It kinda starts, but reconnects and after like 5-10 reconnects it goes to QDL port, i have tried to flash it and now it stuck in QDL too…
And i have 1 mode EM7565 that stuck it Qualcomm QDLoader (USB\VID_1199&PID_90C2&REV_0000)
not Sierra’s one…Name of device is QUSB_Fast_Enum.
But i want to try mostly to flash regular condition modules firstly (with PID 9090 and 90B0)