Enable ADB EM9190

[Alessandro-Zanardi]

Hello, I’ve just updated my EM9190 to the latest firmware 03.17.09.00_GENERIC

ATI8
Manufacturer: Sierra Wireless, Incorporated
Model: EM9190
Revision: SWIX55C_03.17.09.00 269a54 jenkins 2025/07/24 09:04:02
IMEI: XXXXXXXXXXXXXXX
IMEI SV: 29
FSN: 4H1204035003A1
+GCAP: +CGSM

I am trying to enable ADB, so I sent the following commands:
AT!ENTERCND=”A710” to enable extended commands

AT!USBCOMP? to check the current usb composition and the bitmask was 00001009 (diag,modem,mbim)

Checking the bitmask to enable ADB, I had to sum 0x2 in hex. So I sent the following:

AT!USBCOMP=1,4,100B

However the device (after updating udev rules) still shows:

adb devices
List of devices attached
4H1204035003A145 offline

Can you please tell how to enable ADB?

[jyijyi]

i don’t think user can enable this ADB port according to the AT command guide:

[Alessandro-Zanardi]

According to the command help, it tells a different story:

here it is, replying OK after I issued the 100B bitmask

[jyijyi]

due to security reason, user should not be able to access ADB port