# EM7455 fail to upgrade firmware **URL:** \ **Category:** IoT Modules\ **Tags:** fw-upgrade\ **Created:** [November 22, 2022, 7:03pm UTC](https://forum.sierrawireless.com/t/em7455-fail-to-upgrade-firmware/28423 "2022-11-22T19:03:02Z")\ **Posts on this page:** 7\ **Page:** 1
**Author:** ![geofak](https://avatars.discourse-cdn.com/v4/letter/g/bb73d2/32.png) [@geofak](https://forum.sierrawireless.com/u/geofak)\ **Post date:** [November 22, 2022, 7:03pm UTC](https://forum.sierrawireless.com/t/em7455-fail-to-upgrade-firmware/28423/1 "2022-11-22T19:03:02Z")
FDT version: 2.0.2012.0 Awaiting suitable port or adapter … Switching to boot & hold mode … Disabling selective suspend … Awaiting download port … Downloading images … Writing image - Flashing image Enabling selective suspend … Awaiting adapter … Checking update status … Firmware download failed. Primary error code: 67 - Firmware update process timeout. Secondary error code: 0 - Not applicable. Device error code: 0x0 - Unknown device error code. Preexisting images information: Current: Firmware: ImageId: 002.072\_000 BuildId: 02.33.03.00\_GENERIC Configuration: ImageId: 002.072\_000 BuildId: 02.33.03.00\_GENERIC Final images information: Current: Firmware: ImageId: BuildId: Configuration: ImageId: BuildId: OEM PRI: IMEI: Total time elapsed: 480141 ms. Time to switch to boot mode: 18609 ms. Images downloaded: Image ID: ?_? Build ID: 02.38.00.00_? write time: 5031 ms additional flash time: 109 ms Time to reset to application mode: 166813 ms. Press Enter to continue … Hi to all. I can’t manage to upgrade to the latest firmware on this module. I have fdt2 , cwe , nvu in the same folder and i get the above. Also if i change sim i need to wait for a long time and with many restarts to be recognized. My laptop is a Lenovo T470s on Windows 10 x64. Do you have any solution? ---
**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:** [November 23, 2022, 12:19am UTC](https://forum.sierrawireless.com/t/em7455-fail-to-upgrade-firmware/28423/2 "2022-11-23T00:19:02Z")
have you tried the EXE for upgrading FW? [https://source.sierrawireless.com/resources/airprime/minicard/74xx/em\_mc74xx-approved-fw-packages/#sthash.iakDkt98.dpbs](https://source.sierrawireless.com/resources/airprime/minicard/74xx/em_mc74xx-approved-fw-packages/#sthash.iakDkt98.dpbs) ---
**Author:** ![geofak](https://avatars.discourse-cdn.com/v4/letter/g/bb73d2/32.png) [@geofak](https://forum.sierrawireless.com/u/geofak)\ **Post date:** [November 23, 2022, 3:51am UTC](https://forum.sierrawireless.com/t/em7455-fail-to-upgrade-firmware/28423/3 "2022-11-23T03:51:11Z")
Yes, the upgrade process made with the .exe ---
**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:** [November 23, 2022, 3:54am UTC](https://forum.sierrawireless.com/t/em7455-fail-to-upgrade-firmware/28423/4 "2022-11-23T03:54:11Z")
what is the current FW (i.e. ati3) in your module now? ---
**Author:** ![geofak](https://avatars.discourse-cdn.com/v4/letter/g/bb73d2/32.png) [@geofak](https://forum.sierrawireless.com/u/geofak)\ **Post date:** [November 23, 2022, 4:02am UTC](https://forum.sierrawireless.com/t/em7455-fail-to-upgrade-firmware/28423/5 "2022-11-23T04:02:39Z")
The current is 2.33.03 ---
**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:** [November 23, 2022, 4:06am UTC](https://forum.sierrawireless.com/t/em7455-fail-to-upgrade-firmware/28423/6 "2022-11-23T04:06:19Z")
how about using fdt after “AT!BOOTHOLD”? e.g. fdt2.exe -f xxx.cwe xxx.nvu ---
**Author:** ![geofak](https://avatars.discourse-cdn.com/v4/letter/g/bb73d2/32.png) [@geofak](https://forum.sierrawireless.com/u/geofak)\ **Post date:** [November 23, 2022, 4:09am UTC](https://forum.sierrawireless.com/t/em7455-fail-to-upgrade-firmware/28423/7 "2022-11-23T04:09:04Z")
I will try this later and post results here