# RV 50 Failed Firmware Upgrade

**URL:** <https://forum.sierrawireless.com/t/rv-50-failed-firmware-upgrade/17078>\
**Category:** AirLink routers\
**Created:** [July 24, 2019, 11:22pm UTC](https://forum.sierrawireless.com/t/rv-50-failed-firmware-upgrade/17078 "2019-07-24T23:22:52Z")\
**Posts on this page:** 6\
**Page:** 1

<div class="post-metadata">

**Author:** ![shuddle](https://avatars.discourse-cdn.com/v4/letter/s/919ad9/32.png) [@shuddle](https://forum.sierrawireless.com/u/shuddle)\
**Post date:** [July 24, 2019, 11:22pm UTC](https://forum.sierrawireless.com/t/rv-50-failed-firmware-upgrade/17078/1 "2019-07-24T23:22:52Z")

</div>

Upgrading Aleos to version 4.12.0 and it has failed. Modem now has all 4 status lights blink red twice before going off in cascading fashion from power to network in that order one by one; sequence repeats. Modem appears dead in the water; not sure what these status lights mean but doesn’t look good.

---

<div class="post-metadata">

**Author:** ![pek](https://avatars.discourse-cdn.com/v4/letter/p/df705f/32.png) [@pek](https://forum.sierrawireless.com/u/pek)\
**Post date:** [July 30, 2019, 1:43pm UTC](https://forum.sierrawireless.com/t/rv-50-failed-firmware-upgrade/17078/2 "2019-07-30T13:43:01Z")

</div>

The chasing lights pattern usually indicates the RV50 is writing firmware from on-board storage into the cellular radio module and typically takes 3 minutes or so and then will finish boot-up. For example, if the radio module had a Verizon firmware image in it and you installed an AT&T SIM, then the RV50 would need to load the AT&T firmware image into the radio module.

---

<div class="post-metadata">

**Author:** ![ltronsm](https://avatars.discourse-cdn.com/v4/letter/l/e68b1a/32.png) [@ltronsm](https://forum.sierrawireless.com/u/ltronsm)\
**Post date:** [August 11, 2019, 7:05am UTC](https://forum.sierrawireless.com/t/rv-50-failed-firmware-upgrade/17078/3 "2019-08-11T07:05:44Z")

</div>

Hi,

Did you solve this? I have the exact same problem. RV50 has same blinks and will only enter Recovery Mode. I can upload new firmware but after flashing followed by reboot it returns to this state.

---

<div class="post-metadata">

**Author:** ![shuddle](https://avatars.discourse-cdn.com/v4/letter/s/919ad9/32.png) [@shuddle](https://forum.sierrawireless.com/u/shuddle)\
**Post date:** [August 13, 2019, 3:59pm UTC](https://forum.sierrawireless.com/t/rv-50-failed-firmware-upgrade/17078/4 "2019-08-13T15:59:22Z")

</div>

Hello,

I did not, my system was under warranty and was replaced. Still unsure what caused the issue.

---

<div class="post-metadata">

**Author:** ![SClohes](https://avatars.discourse-cdn.com/v4/letter/s/e95f7d/32.png) [@SClohes](https://forum.sierrawireless.com/u/SClohes)\
**Post date:** [August 27, 2019, 4:46am UTC](https://forum.sierrawireless.com/t/rv-50-failed-firmware-upgrade/17078/5 "2019-08-27T04:46:33Z")

</div>

Hi ltronsm. I have the same problem. Did you return yours aswell?

---

<div class="post-metadata">

**Author:** ![ltronsm](https://avatars.discourse-cdn.com/v4/letter/l/e68b1a/32.png) [@ltronsm](https://forum.sierrawireless.com/u/ltronsm)\
**Post date:** [August 27, 2019, 7:19am UTC](https://forum.sierrawireless.com/t/rv-50-failed-firmware-upgrade/17078/6 "2019-08-27T07:19:04Z")

</div>

Hi,

I entered recovery mode, flashed the device with an old  
firmware and then reinstalled the new firmware (in normal mode, not recovery).

To obtain an old firmware I had to download the oldest  
RV50 version and extract .bin image from this page: [https://source.sierrawireless.com/resources/airlink/amm/gateway-software-packages/](https://source.sierrawireless.com/resources/airlink/amm/gateway-software-packages/)