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Impulse firmware 1.1, September 19, 2022 broke the iphone connection

Michel Sykes

20 settembre 2022 16:54

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Two Impulse helmets for my wife and I, were working fine with the firmware 1.0.4 with one iPhone 11 and one iPhone 14 pro, both on IOS16...

As soon as the new firmware 1.1 was installed automatically, the problem started on both helmets, impossible to connect with any iPhone... it crashed the connection immediately... impossible to pair again either.... I tried the reset, back to factory settings, always the same problem... the bluetooth stays connected 30 sec with the LED steady blue after a factory reset and then the connection stops itself...

I think that your last firmware was not tested thoroughly enough..

Any solution ???

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36 commenti

• 1
  
  Tom (masterX244) 21 settembre 2022 08:11

  Not for the common user. You need to man-in-the middle the firmware download, the Impulse and Stryker use unencrypted HTTP for the download. Then you can pretend a 1.2 update exists which delivers the 1.0.4 file (mirrored here: https://archive.org/details/sena-firmware-files )

• 1
  
  Daniel Kistler 22 settembre 2022 08:23

  Same for me. And not only with the Iphone. Also when connecting to BMW GS the helmet immediately shuts down. Not usable anymore :-(
  Also submitted a ticket.

  Modificato da Daniel Kistler 22 settembre 2022 08:24
• 1
  
  Tom (masterX244) 22 settembre 2022 08:37

  Seems like i need to search for a different way in to redirect the firmware download address (that part is in a config-file inside) to make a downgrade tool that doesnt require intercepting the connection to the Sena server. (i know that stuff since i found a way to takeover the update part via the firmware update mechanism, they made a really stupid mistake there).

• 1
  
  Tom (masterX244) 22 settembre 2022 10:30

  being a computer nerd and having a router thats based on OpenWrt makes it easy. that way i can return a different answer on the domain->IP lookup and redirect the request to a device that i control. thats why the request being plain HTTP is a important detail. HTTPS cannot be intercepted using this method. Rest was understanding what the code on the helmet expects on the server. And yes, i bought me a impulse a while ago just for hacking/messing with the firmware, didnt expect that weird feature of only wifi-update initially and mainly got it as a "50-series specimen". 
  
  Edit: most of my research on that (except some WIP and completely untested stuff) is out on my github page

   

  Modificato da Tom (masterX244) 22 settembre 2022 10:32
• 1
  
  Daniel Kistler 22 settembre 2022 12:00

  Ah yes, I see what you mean. I forgot with the charger I will connect via Wifi to the helmet. That should work yes. So the fix will be possible.

  Thank's Michel!
  
  So know Sena please. Fix this ASAP :-)

• 1
  
  Daniel Cobden 24 settembre 2022 01:03

  I have the same problem .... I suppose it's good to know it's a software issue and seemingly not as a result of a recent small drop of my helmet

• 1
  
  Jon Moj 24 settembre 2022 01:14

  I have the same issue with my stryker. I use an iphone and it powers off immediately after connecting for me. The led show a solid blue light for 10-15 seconds as its powering off without the "Goodbye" it normally does.

• 1
  
  David Johnson 24 settembre 2022 13:25

  Bought my helmet on the 19th of Sep, 2022 from Revzilla and it arrived on the Sep 22nd.  Charged it and took it for a test ride (now late in the evening) and it was great.  It took awhile to figure out how to get the wifi to work, but muddled through it.  Updated the firmware on morning of 23 September and it pretty much turned the helmet into a brick.  Tried factory reset and the bluetooth reset.  It will connect to bluetooth, but the volume buttons are inop, functionality is almost non-existent and then it shutdowns within a minute.  I was very excited during my 20 minute test ride the night it arrived.  Really need Sena to push an emergency firmware update (roll-back) as I have not even had the opportunity to use this helmet on my daily commute.  Thanks for the post above and I'll follow your post for resolution.  I would hate to have to return this helmet when it has everything I wanted on a modular.  

• 1
  
  David Johnson 24 settembre 2022 13:35

  Just to add, I also submitted a trouble ticket.  Thanks for the post Michel.  

• 1
  
  Tom (masterX244) 25 settembre 2022 18:08

  Found a method to sneak some code in in a automatable way. WOrking on the downgrader now.

• 1
  
  Tom (masterX244) 26 settembre 2022 12:13

  Updates trigger a push notification to my phone, thats how i'm able to spot them that fast. (using a selfhosted matrix messenger instance as the way for getting notified, can share a link to the channel if needed).

• 1
  
  Daniel Kistler 26 settembre 2022 17:41

  Installed the update. Works again.
  However I am not sure if it is an update or a roll back.
  Volume Control on the BMW GS still not working but I think it should now on 1.1?
  But glad i can use the helmet again.

• 1
  
  Tom (masterX244) 26 settembre 2022 17:57

  Another update. Compared 1.0.4 and 1.1.1 and they are extremely different on byte level. Rollback would have looked much more similar. (the Firmware archive at archive.org got those files, too)

• 1
  
  Daniel Kistler 27 settembre 2022 08:10

  Hi Julien
  Had a total crash (not able to start) as well. The reset button you can push with a pin (besides the charge port) did the trick for me. Then I could start again. Did you already install 1.1.1 that came out on monday?
  Also if you just need to connect the 2 impulse helmets, you can also connect via bluetooth instead of mesh. Works perfectly for me.

• 0
  
  Pablo Romero 20 settembre 2022 20:30

  Tengo un iPhone 12, y me pasa lo mismo desde que he actualizado a la versión. 1.1

  espero den una pronta solución

• 0
  
  Michel Sykes 21 settembre 2022 08:34

  Thanks for the info, Tom... it would be much easier if Sena would let us do a rollback to a previous working version of their firmware... 

• 0
  
  Michel Sykes 22 settembre 2022 06:05

  I submitted a support Ticket....

  "Your request (677391) has been received and is being reviewed by our support staff."

  Let's hope that they will find a fast solution to this bad firmware upgrade... This is really disappointing...

  Modificato da Michel Sykes 22 settembre 2022 06:43
• 0
  
  Michel Sykes 22 settembre 2022 10:00

  Daniel Kistler Same problem with my GS... unusable.. :( Thanks for opening one more ticket... wake up Sena...

  Tom (masterX244) That would be great, but not so easy with my Internet knowledge.. once you're connected to your wifi, how can you redirect the request to trick it to use a different source/version of the firmware ??

  I also have a Momentum helmet, the IOS App cannot start anymore, it crashes immediately with IOS16.... but I can still listen to my music... just the other Sena App is also unusable right now...

  Modificato da Michel Sykes 22 settembre 2022 10:02
• 0
  
  Daniel Kistler 22 settembre 2022 10:47

  Michel Sykes Are you still able to connect just the two Impulse Helmets for Communication? I have to check that with my Girlfriends Helmet tonight.
  
  However I don't see an easy fix for that. Even if Sena provides a fixed Firmware Update. How are we supposed to install that when we are not able to connect to the phone? After factory reset, the helmet does not know my Wifi Password. Need to connect to the phone for that. Ohhhh dear :-(

• 0
  
  Michel Sykes 22 settembre 2022 11:05

  @Tom, thanks for the input... I am going to have a look at Github soon...

  Daniel Kistler Actually, it crashes only when trying to open a bluetooth connection.... otherwise, I can still open the IOS App and browser my wifi... it should still be possible to start a new firmware upgrade.... or a tricky one if Sena doesn't reply....

  And I haven't tried the communication channel only yet... I will ASAP

  

  Modificato da Michel Sykes 22 settembre 2022 11:10
• 0
  
  Daniel Kistler 22 settembre 2022 11:22

  In my case, it immediately crashes, as soon as the connection to the Iphone (or the BMW for that matter) is established. So I am not able to open the App.

  I hope Sena will have some sort of fix soon.

• 0
  
  Michel Sykes 22 settembre 2022 11:24

  Have you tried to remove the bluetooth connection on your iPhone first ?? in Settings ==> Bluetooth ?

• 0
  
  Daniel Kistler 22 settembre 2022 11:28

  Yes. To be sure, I just tried it again. Removed the Bluetooth Connection from the phone. Then factory reset on the helmet. After switching it back on it immediately searches for a phone. Then on the Iphone a new device is available named Impulse v1.1. Selecting that and the helmet goes off immediately.

• 0
  
  Michel Sykes 22 settembre 2022 11:54

  Yes, same trouble on my side... but if you just delete the bluetooth connection now and connect the charger to the helmet, it should stay charging in wifi mode... then the Sena App can start without crashing and you should be able to access your wifi network...

• 0
  
  Daniel Kistler 22 settembre 2022 18:17

  Small Update:
  Bluetooth Connection directly to another Sena works fine.

• 0
  
  Michel Sykes 23 settembre 2022 04:29

  Good to know, thanks...

  And still no news from Sena about our tickets... :(

• 0
  
  Michel Sykes 24 settembre 2022 10:33

  Yep… exactly the same wrong behavior on mines…. Disappointing.. 🙈

• 0
  
  Michel Sykes 24 settembre 2022 15:28

  More trouble tickets will maybe wake up Sena…. Thanks David 👍🏻

• 0
  
  Michel Sykes 26 settembre 2022 06:46

  Great Tom, that would be useful... amaaaaazing... !!

• 0
  
  Tom (masterX244) 26 settembre 2022 10:15

  There was a update (1.1.1) released a few hours ago. Seems like they released a fix. Still going to work on the downgrader since they might do similar fails in the future. (or other bugs where users want to do a downgrade).

  Edit: I got a notification system running that checks for updates on all(!) devices every 6 hours and that alerts me on any release.

   

  Modificato da Tom (masterX244) 26 settembre 2022 10:16