Hello, the forum contains many posts about sensors which fail to continue working after a low battery. through observing the logs this poster determined the sensors mac address was somehow being corrupted in its RAM , and this one detailed 5 blinks = fail to pair, 3 blinks ok. The wyze sense is based on the TI CC13x0 system on a chip, TI manual link there are a number of references in the manual to resetting it , and the chip itself has a reset pin. [reset] [CC1310] i had 8 (7 contact & 1 motion) bricked sensors, and have been experimenting on how to unbrick them. At one point it appeared a motion sensor became responsive again by applying an overvoltage of 4.5v in lieu of the 3v cell ( maybe a peer on the forum or at Wyze labs can repeat this to verify?) , but could not repeat this with other sensors - still 5 blinks. if there are other ppl in the forum who have any suggestions, i would be more than happy to experiment on my bricked sensors, maybe together we might find a workaround. thanks

If you have the time (you will need lots of time) and the money to buy the Texas Instruments development board (around $30, if I remember correctly), the ‘wyzeback’ method for restoring firmware works to get everything back to normal, but only if you have saved a copy of the firmware from a sensor before it fails. On each sensor, the MAC address and some other string of bytes is stored - numbers that are unique to each sensor. To connect the sensor using Wyze, the sensor must have both of those unique numbers properly programmed. And the only place to get the second number is to read the sensor firmware (the MAC can be read from the sticker on the back). A smart idea if you have the time and the Texas Instruments development board would be to read the firmware from every sensor which has not yet failed. Then, if it fails, reprogram that firmware and all will be well again. Or be sure to replace batteries before they get low. Or just buy more sensors if the old ones die - and be prepared to replace those if they die.

[image] carverofchoice: The reason I think this is because I have had several V1 sensors recently tell me the battery was low, and they told me MANY times (not just once) until I made the change. I think the ones in groups might not be sending notifications, but I know definitely that the ones not in groups are sending notifications. My v1 sensors are grouped and they repeatedly send low battery notifications until battery is replaced. I just replaced the battery on a v1 contact sensor today.

Interesting. I wonder why some people aren’t getting the notifications then. I definitely get them on my ungrouped sensors. I get them all the time. You are getting them on grouped sensors (I might also be getting them for grouped sensors, but I haven’t really paid attention…most of the ones I have grouped are ones I rarely to ever use or think about). Is your notification setting toggled on for them? Maybe that’s what’s needed? I always leave the main toggle on even if the sub-toggles for open/closed notifications are toggled off.

[image] carverofchoice: I wonder why some people aren’t getting the notifications then. Perhaps difficult to distinguish audible from other notifications and then swiped away? [image] carverofchoice: Is your notification setting toggled on for them? Yes, main and sub-toggles. Also have DND exception enabled for WyzeMessage channel.

Since this has come up recently, I thought I’d show that I have been getting low battery notifications for one of my V1 contact sensors all day today. It’s named “Siren Silence” because if I open or close that sensor it triggers a rule to silence ALL the sirens. [image] I think I got 4 notifications about low battery from this V1 sensor today. So I am definitely getting them. Not sure why others aren’t. That is really weird.

Maybe if there were a toggle for low battery notification, it might work. This is my setup. [Screenshot 2022-11-18 at 6.35.22 AM]

Wyze guy posted:“The MAC address is printed on the sticker on the back of the device and is easily recovered,” Are we sure about this cause the only good sensor I have left that paired to the wyze app and under device Mac in the app doesn’t match what’s on the back label. I it even seems to be a diffrent format.

Well, if you mix-N-Match your back covers thinking it does not make any difference, then yes, they will not match! I am not sure what you are referring to about a different format.

And that is why only an idiotic company of the first order would dream of putting MAC addresses on dumb pieces of plastic like mounting plates or battery covers, smh Seriously, who does that?

My last one just died. This whole thing just pisses me off to no end! It’s not expensive, but to me it’s the principle. A company should not be allowed to profit off of junk then not want to support it. Just wow they hands clean of any responsibility. :rage: Curious, had anybody started any class action against this thieving company? They should have been made to pay all of their customers for knowing about the security issue that that day on for 3 years without addressing. May be some of you were compensated in some way, but I was not. I gotta research how to get a class action started.

V1 Motion Sensor went offline this week. Could not add sensor back to the V1 Bridge after removing it. Turns out that the mac on this MOTION sensor is now 00000000. I thought this only happens to the CONTACT sensors! The battery voltage was 3V and I was never notified by the app that the battery was low.

Unbricking Wyze Contact Sensor - pcb reset pin

Sensors

sgi December 16, 2023, 1:07pm 284

those interested in keeping their Wyze sensors working, please do consider voting for this improvement:

Topic		Replies	Views
Forgotten Sensors (dead batteries) Sensors entry-sensor-v1 , sense-v1	260	20555	February 8, 2023
2 of 4 Contact Sensors Unresponsive After Battery Change Cameras android , sense-v1	74	8242	December 4, 2024
Wyze sense V1 - Design flaws Sensors support , troubleshooting , important , not-platform-specific , sense-v1	27	4342	August 23, 2021
Firmware Update to Allow Viewing Bricked Sensors (Like Home Assistant) Probably Not probably-not	75	5830	June 16, 2021
Contact sensor battery replacement still dead Cameras not-platform-specific	67	13391	August 13, 2021

Unbricking Wyze Contact Sensor - pcb reset pin

Related topics