# Where is the USB driver for RC7611 FW upgrade? \[SOLVED\] **URL:** \ **Category:** RC76\ **Created:** [March 3, 2021, 11:31am UTC](https://forum.sierrawireless.com/t/where-is-the-usb-driver-for-rc7611-fw-upgrade-solved/22996 "2021-03-03T11:31:23Z")\ **Posts on this page:** 20\ **Page:** 1
**Author:** ![sales](https://avatars.discourse-cdn.com/v4/letter/s/58956e/32.png) [@sales](https://forum.sierrawireless.com/u/sales)\ **Post date:** [March 3, 2021, 11:31am UTC](https://forum.sierrawireless.com/t/where-is-the-usb-driver-for-rc7611-fw-upgrade-solved/22996/1 "2021-03-03T11:31:23Z")
To update the firmware, it says, " 1. Download the latest USB driver and run the executable file." I cannot find a USB driver anywhere in the product resources. [https://source.sierrawireless.com/resources/airprime/software/rc76xx/rc76xx-firmware-release-6,-d-,2/](https://source.sierrawireless.com/resources/airprime/software/rc76xx/rc76xx-firmware-release-6,-d-,2/) ---
**Author:** ![jyijyi](https://sea1.discourse-cdn.com/flex025/user_avatar/forum.sierrawireless.com/jyijyi/32/4766_2.png) [@jyijyi](https://forum.sierrawireless.com/u/jyijyi)\ **Post date:** [March 3, 2021, 11:37am UTC](https://forum.sierrawireless.com/t/where-is-the-usb-driver-for-rc7611-fw-upgrade-solved/22996/2 "2021-03-03T11:37:46Z")
How about this one? [https://source.sierrawireless.com/resources/airprime/software/airprime-em\_mc-series-windows-drivers-qmi-build-5087/](https://source.sierrawireless.com/resources/airprime/software/airprime-em_mc-series-windows-drivers-qmi-build-5087/) ---
**Author:** ![sales](https://avatars.discourse-cdn.com/v4/letter/s/58956e/32.png) [@sales](https://forum.sierrawireless.com/u/sales)\ **Post date:** [March 3, 2021, 11:47am UTC](https://forum.sierrawireless.com/t/where-is-the-usb-driver-for-rc7611-fw-upgrade-solved/22996/3 "2021-03-03T11:47:08Z")
Nothing. The upgrade firmware opens a window but all the fields are empty. Press any key to continue, it quits. I don’t think that driver works for the RC series. Windows 7 Device Manager has identified “Sierra Wireless DM Port” and “Sierra Wireless NMEA Port” so it sees the module. ---
**Author:** ![jyijyi](https://sea1.discourse-cdn.com/flex025/user_avatar/forum.sierrawireless.com/jyijyi/32/4766_2.png) [@jyijyi](https://forum.sierrawireless.com/u/jyijyi)\ **Post date:** [March 3, 2021, 12:14pm UTC](https://forum.sierrawireless.com/t/where-is-the-usb-driver-for-rc7611-fw-upgrade-solved/22996/4 "2021-03-03T12:14:56Z")
how about this? 1. download the RC FW EXE 2. use 7zip to extract it 3. there should be a fdt2.exe inside 4. put the new xxx.spk inside the same folder 5. use command prompt to update by “fdt2.exe xxx.spk” ---
**Author:** ![sales](https://avatars.discourse-cdn.com/v4/letter/s/58956e/32.png) [@sales](https://forum.sierrawireless.com/u/sales)\ **Post date:** [March 3, 2021, 12:23pm UTC](https://forum.sierrawireless.com/t/where-is-the-usb-driver-for-rc7611-fw-upgrade-solved/22996/5 "2021-03-03T12:23:24Z")
I think you mean the .spk files under the (Android, Linux QMI SDK) section. Guess what, the links for the upgrade for ATT and T-Mobile are also .exe files, the same ones as under Windows section. That is not right and that won’t work. Why does everything have to be a struggle? ---
**Author:** ![jyijyi](https://sea1.discourse-cdn.com/flex025/user_avatar/forum.sierrawireless.com/jyijyi/32/4766_2.png) [@jyijyi](https://forum.sierrawireless.com/u/jyijyi)\ **Post date:** [March 3, 2021, 12:27pm UTC](https://forum.sierrawireless.com/t/where-is-the-usb-driver-for-rc7611-fw-upgrade-solved/22996/6 "2021-03-03T12:27:48Z")
![image](https://us1.discourse-cdn.com/flex025/uploads/sierrawireless/original/2X/7/7e5011ce73ea6c1f36f8ac677e6997b8e20bf341.png) ---
**Author:** ![sales](https://avatars.discourse-cdn.com/v4/letter/s/58956e/32.png) [@sales](https://forum.sierrawireless.com/u/sales)\ **Post date:** [March 3, 2021, 12:32pm UTC](https://forum.sierrawireless.com/t/where-is-the-usb-driver-for-rc7611-fw-upgrade-solved/22996/7 "2021-03-03T12:32:33Z")
The fdt2.exe is a Windows program that still needs the missing USB driver to work. ---
**Author:** ![jyijyi](https://sea1.discourse-cdn.com/flex025/user_avatar/forum.sierrawireless.com/jyijyi/32/4766_2.png) [@jyijyi](https://forum.sierrawireless.com/u/jyijyi)\ **Post date:** [March 3, 2021, 12:36pm UTC](https://forum.sierrawireless.com/t/where-is-the-usb-driver-for-rc7611-fw-upgrade-solved/22996/8 "2021-03-03T12:36:26Z")
so it does not work on your PC? Did you try that “fdt2.exe xxx.spk”? ---
**Author:** ![sales](https://avatars.discourse-cdn.com/v4/letter/s/58956e/32.png) [@sales](https://forum.sierrawireless.com/u/sales)\ **Post date:** [March 3, 2021, 12:39pm UTC](https://forum.sierrawireless.com/t/where-is-the-usb-driver-for-rc7611-fw-upgrade-solved/22996/9 "2021-03-03T12:39:56Z")
Yes, got the same exact result as running the exe file. Unpacking it and manually running it doesn’t change that the USB driver is still needed. BTW the .dll file must also be extracted to the same directory. ---
**Author:** ![jyijyi](https://sea1.discourse-cdn.com/flex025/user_avatar/forum.sierrawireless.com/jyijyi/32/4766_2.png) [@jyijyi](https://forum.sierrawireless.com/u/jyijyi)\ **Post date:** [March 3, 2021, 12:45pm UTC](https://forum.sierrawireless.com/t/where-is-the-usb-driver-for-rc7611-fw-upgrade-solved/22996/10 "2021-03-03T12:45:48Z")
when you extract, three files should be in same folder. BTW, I don’t see problem in running the exe: ( not sure if you have another PC to test…) ![image](https://us1.discourse-cdn.com/flex025/uploads/sierrawireless/original/2X/7/7f65b13a6e062428d684c4f68b6b588be7ff684f.png) ati3 Manufacturer: Sierra Wireless, Incorporated Model: RC7620 Revision: SWI9X07H\_00.03.03.00 2bb7a4 jenkins 2020/04/15 07:57:29 IMEI: 353634110000980 IMEI SV: 14 FSN: 7Q9472000710AA +GCAP: +CGSM OK ---
**Author:** ![sales](https://avatars.discourse-cdn.com/v4/letter/s/58956e/32.png) [@sales](https://forum.sierrawireless.com/u/sales)\ **Post date:** [March 3, 2021, 1:05pm UTC](https://forum.sierrawireless.com/t/where-is-the-usb-driver-for-rc7611-fw-upgrade-solved/22996/11 "2021-03-03T13:05:02Z")
Are you connecting the USB through a development system or to the USB port of the module? ---
**Author:** ![jyijyi](https://sea1.discourse-cdn.com/flex025/user_avatar/forum.sierrawireless.com/jyijyi/32/4766_2.png) [@jyijyi](https://forum.sierrawireless.com/u/jyijyi)\ **Post date:** [March 3, 2021, 1:09pm UTC](https://forum.sierrawireless.com/t/where-is-the-usb-driver-for-rc7611-fw-upgrade-solved/22996/12 "2021-03-03T13:09:22Z")
I used the HL development kit and connect USB port of the module to PC ---
**Author:** ![sales](https://avatars.discourse-cdn.com/v4/letter/s/58956e/32.png) [@sales](https://forum.sierrawireless.com/u/sales)\ **Post date:** [March 3, 2021, 1:23pm UTC](https://forum.sierrawireless.com/t/where-is-the-usb-driver-for-rc7611-fw-upgrade-solved/22996/13 "2021-03-03T13:23:32Z")
I looked at the schematic and of the HL dev kit and I don’t see any application processor between the USB and the module. If you open up Windows Device manager, and look under Ports, what USB driver appears when you plug in the USB from the module? ---
**Author:** ![jyijyi](https://sea1.discourse-cdn.com/flex025/user_avatar/forum.sierrawireless.com/jyijyi/32/4766_2.png) [@jyijyi](https://forum.sierrawireless.com/u/jyijyi)\ **Post date:** [March 3, 2021, 1:26pm UTC](https://forum.sierrawireless.com/t/where-is-the-usb-driver-for-rc7611-fw-upgrade-solved/22996/14 "2021-03-03T13:26:30Z")
![image](https://us1.discourse-cdn.com/flex025/uploads/sierrawireless/original/2X/a/ab1fa9446ab610ecddbaa1bda9cd1d317d1ea1b5.png) ---
**Author:** ![sales](https://avatars.discourse-cdn.com/v4/letter/s/58956e/32.png) [@sales](https://forum.sierrawireless.com/u/sales)\ **Post date:** [March 3, 2021, 1:38pm UTC](https://forum.sierrawireless.com/t/where-is-the-usb-driver-for-rc7611-fw-upgrade-solved/22996/15 "2021-03-03T13:38:23Z")
I have those also. But the output is: ![RC7611_udfail](https://us1.discourse-cdn.com/flex025/uploads/sierrawireless/original/2X/3/30ab970be8b73b2183080b5c2ace5661799de75e.jpeg) ---
**Author:** ![sales](https://avatars.discourse-cdn.com/v4/letter/s/58956e/32.png) [@sales](https://forum.sierrawireless.com/u/sales)\ **Post date:** [March 3, 2021, 1:42pm UTC](https://forum.sierrawireless.com/t/where-is-the-usb-driver-for-rc7611-fw-upgrade-solved/22996/16 "2021-03-03T13:42:20Z")
It seems similar to this, > **[Unable to erase USER1 partition](https://forum.legato.io/t/unable-to-erase-user1-partition/4750/3)** > > Hi, I flashed the R12 image into my targets, and then I was able to erase the USER1 partition without any problem. Thanks! greetings, annaertd ---
**Author:** ![jyijyi](https://sea1.discourse-cdn.com/flex025/user_avatar/forum.sierrawireless.com/jyijyi/32/4766_2.png) [@jyijyi](https://forum.sierrawireless.com/u/jyijyi)\ **Post date:** [March 3, 2021, 2:00pm UTC](https://forum.sierrawireless.com/t/where-is-the-usb-driver-for-rc7611-fw-upgrade-solved/22996/17 "2021-03-03T14:00:08Z")
Normally"fdt2.exe xxx.spk" can solve the problem. Don’t know why you still have problem ---
**Author:** ![sales](https://avatars.discourse-cdn.com/v4/letter/s/58956e/32.png) [@sales](https://forum.sierrawireless.com/u/sales)\ **Post date:** [March 3, 2021, 2:04pm UTC](https://forum.sierrawireless.com/t/where-is-the-usb-driver-for-rc7611-fw-upgrade-solved/22996/18 "2021-03-03T14:04:05Z")
I have installed swiflash on a Linux machine but the RC series is not in the supported list. “Allowed values are: ar7 AR755X ar758x AR758X ar86 AR865X fx30\_wp85 FX30(WP85XX) wp750x WP750X wp76xx WP76XX wp77xx WP77XX wp85 WP85XX” ---
**Author:** ![jyijyi](https://sea1.discourse-cdn.com/flex025/user_avatar/forum.sierrawireless.com/jyijyi/32/4766_2.png) [@jyijyi](https://forum.sierrawireless.com/u/jyijyi)\ **Post date:** [March 3, 2021, 2:47pm UTC](https://forum.sierrawireless.com/t/where-is-the-usb-driver-for-rc7611-fw-upgrade-solved/22996/19 "2021-03-03T14:47:14Z")
Linux uses gobi driver for communications ---
**Author:** ![sales](https://avatars.discourse-cdn.com/v4/letter/s/58956e/32.png) [@sales](https://forum.sierrawireless.com/u/sales)\ **Post date:** [March 3, 2021, 3:11pm UTC](https://forum.sierrawireless.com/t/where-is-the-usb-driver-for-rc7611-fw-upgrade-solved/22996/20 "2021-03-03T15:11:41Z")
I uninstalled the driver and then reinstalled it. This time there was a flag next to the Mobile Broadband Network Adapter (what “MBN adaper” means). The error was Windows couldn’t verify the digital signature. I rebooted without driver verification (press F8 while booting). Then the error was gone. I ran the original EXE file and it ran and updated fine. I rebooted the module but the firmware date was the same 2020/04/15 07:47:29. But according to the 6.2 release notes, versions 4, 5, and 6 all have the same version number. I don’t think that is right. ![RC7611_udfail2](https://us1.discourse-cdn.com/flex025/uploads/sierrawireless/original/2X/3/36286936a5cac0998ec7bb29c15dfb8360c41098.jpeg) [Next page](https://forum.sierrawireless.com/t/where-is-the-usb-driver-for-rc7611-fw-upgrade-solved/22996.md?page=2)