What app do you use to pair the phone? Amazfit App ou another?
I’m trying to downgrade, and as soon as it reboot, it updates directly to the new firmware again.
Do not log in into the app Amazfit again, if you do so, force the stop, as soon as it is updating and turn off and on the watch and only use the Notify and Fitness app
If I do so, my GTS is stuck in “open the app and check for updates”
Maybe I have a problem with the last security patch on my android on too
Guess, I have done it and as soon as it says on the watch updating firmware I force stop the app and reset the watch, and it is good to go. Tested it yesterday and accelerometer works completely fine.
After disabling bluetooth 2 or 3 times, it doesnt ask the update anymore.
Tried with 0.0.8.37, and yes, sleep tracking.
I hope that the dev team can solve the problem really fast or for the next firmwares.
Hello folks, I can confirm the issue on Amazfit GTS after the firmware update on the watch in combination with Tools & Amazfit… It seems like after the update BT on the phone is crashing - turing off after a short time… I will try to contact Zdenek Horak author of Tools & Mi Band if he has any ideas about this as he is the ultimate Guru here…at the moment I do not have any ideas on how to workaround this on Sleep as Android end…
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Hey, thanks for replying after my testing I deduced the same, that for some reason it was not working with new updates, but indeed the day I woke up I saw that my bluetooth was being turned on again, and it was never off. So this matches your argument, so far it is working as supposed with the stick firmware.
Folks Bluetooth sniffing genius Zdenek Horak (Tools & Amazfit) is on it… so lets cross our fingers for him…
This is good news, thanks for the fast update
Good news everyone :), seems Zdenek Horak has a fix for the issue. Xiaomi changed the communication not-really-a-protocol…the BT on/off issues were just a side effect… and the really good news is he has now released the fix 100% to production so you should get it within few hours from the Play Store…
The fixed versions are:
Tools & Amazfit 4.9.0
Tools & Mi Band 4.5.0
It seems not just GTS is affected but also GTR (and I expect to see more devices over time getting this change with firmware updates) but we could not test it on the GTR so if anyone can confirm the fix that would be great…many thanks for reporting and testing this. Big thanks to Zdenek!
Oh man, this is great, I am so happy I have chosen Sleep as Android for so many years, thank you to Zdenek and also the team at Sleep as Android I will be testing it soon
Big thanks, very much appreciated, please let us know if the issue is fixed for you…
It would be nice to notify the dev of the Notify and Fitness app for Amazfit about the issue too.
Also I would like to add in my very first post that Sleep as Android and any of the components for sleep tracking are not set to sleep and be killed by samsung. Just picked up that mistakes
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So cool and fast to solve this little problem.
As soon as the new version is on PlayStore I test it.
Allready updated Amazfit GTS firmware and Amazfit Tools
I try this night
You can try now, put a random alarm and activate sleep tracking, if the phone shows you the graph of the accelerometer then it is fine
Tested already and it works with Amazfit tools but it does not work with notify me and fitness, could you maybe contact the dev for this?
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I’m using an amazfit GTS but Notify & Fitness for Amazfit still can’t recognize the smartwatch accelerometer, can you please talk with the developers for a fix?
Hello, we can mention it to the Notify & Fitness guys… but we are much more in contact with Tools & Amazfit… I think GTS shoudl work in the app, right?
Please contact them 
At the moment Sleep as Android can detect the GTS heart monitor sensor but not the motion sensor 