Why is my RoR all over the place at 160C? I’ve updated the firmware already

I’m struggling to understand why my RoR jumps and drops so significantly once I hit around 160-170? I just got the R2 and at first I was getting huge spikes at 160C and did some research noting I needed a firmware update. After that it seemed to go away but I’m struggling in the malliard phase to keep temp stable

Hi @sshami96.5FQ6

We suggest updating to the latest firmware version, v165.

You can update using the web updater tool here:
bullet-r2-web-updater

After updating, please try another roast and let us know if the RoR spikes around 160–170°C still occur. Your feedback will help us confirm whether the issue is resolved.

Thank you.

Thanks for responding! I tried to download the v165 and I keep getting the same “failure to fetch” message.

I’m also receiving the same when attempting to download v165- “Download error: Failed to fetch”

I was able to download and update to v159 yesterday.

Is this the same issue? Bean temp is all over the place, so I have been following the ibts info during my roasts.
Feed back would be appreciated.
-Greg