Amazfit GTR can't fix GPS

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Stex802

New member
Nov 7, 2020
1
0
Hi, after an update my Amazfit wasn't able anymore to synchronise data with Zepp. Last update didn't help, I've tried repairing, without success. Now I'm not even able anymore to change the watchfaces, which was possible before. Anybody solved it? This watch is absolute rubbish..
 

MiPiMok

Senior Member
Dec 4, 2010
63
10
Marseille
Xiaomi Poco F3
What a joke, The last update is worse than the previous ones and as already said for months, the problem is not software but hardware. The GPS chip is of very poor quality, and with the swing of the arm during a race, the signal is deteriorated...
The signal is less worse by bike ...
Im on the last update and this is the result ⬇️
The top image is the watch signal, the bottom image is my phone signal.
 

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dersie

Senior Member
Mar 26, 2011
1,665
276
Nancy, Lorraine
What a joke, The last update is worse than the previous ones and as already said for months, the problem is not software but hardware. The GPS chip is of very poor quality, and with the swing of the arm during a race, the signal is deteriorated...
The signal is less worse by bike ...
Im on the last update and this is the result
The top image is the watch signal, the bottom image is my phone signal.

MDR :)

Amazfit is synonym of "Bad GPS", we read same thing for almost all Amazfit devices.

I have the very new Amazfit-X and GPS is also bad. All users cry :(

On my Stratos is a little bad but not totally ;)
 

sailangkham

Member
Sep 28, 2019
13
4
As an experiment, I took my old BIP out of the drawer it has been in for the past couple of years. (It was replaced by a Stratos) It wouldn't start as the battery was dead so it went on charge for 15 minutes. Zepp has been removed from my phone so there was no AGPS available, which I recall was available with the BIP. From cold it achieved a lock in 33 seconds in a reasonably clear location. In that same location the Huawei GT2 takes between 5 and 8 seconds to achieve lock.
The BIP produced more accurate tracks than did the GTR, but neither gets near the GT2. I am amazed that, with all the evidence from the GTR, Amazfit continue, as reported here, to produce devices with what is effectively a non-functioning GPS.
 
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JeeHaa

Senior Member
Aug 28, 2007
197
33
Maybe I'm lucky, but my Bip has been a reliable workhorse GPS-wise (not so much with HR).
Also had a GT2 and Magic Watch 2 but could not get used to the software and some limitations of the watch config.

After having tries GPR and GTS, I was really looking forward to a GTR 2 until I saw this first proper review (Teaser: still bad GPS):
https://www.androidauthority.com/huami-amazfit-gts-2-review-1172250/

I'm going to wait for a couple of more reviews, but it does not look very promising. :(

BTW: It seems to be available here for us EU users:
https://www.powerplanetonline.com/xiaomi-amazfit-gtr-2-smartwatch
 
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arnold444

New member
Mar 30, 2016
1
5
I had amazfit bip with no gps problem. So my area is not issue.

hi Dukynko,

finally I got my first 2 fails with my gps....I was using it since 2 monthes without problem, but know that winter comes, the sky is more cloudy. My first fail was in holland with a very cloudy sky....then back in my country(belgium) where I had no problem so far....and again a very cloud day......

arnold444
 

marcinj6

Member
Jan 12, 2012
9
0
Hey, I have a question, did someone manage to fix the gps in this watch? I have a corrected version, but the trail is drawn far from the road. maybe there is some way to add an additional antenna? someone tried?
 

marcinj6

Member
Jan 12, 2012
9
0
No need to solder anything, if it is the right connector and the problem is the antenna (and it seems so) you can simply add a piece of aluminum foil to increase the signal reception. S5 mini has a similar problem the the GPS antenna is badly connected and adding a small piece of aluminum foil connected to the GPS connector helps a lot...

where to add this piece of aluminum foil?
 

TRISH00W

Member
Nov 23, 2020
5
0
Hello guys,
I'm undecided between the GTR or the Huawei GT 1, both around the same price. I really like the GTR looks, more watchfaces, BT 5.0, sync with Strava but all of this is worthless if the GPS does not work. I do runs and mountain biking. What do you guys suggest? Is the GPS better?
Thanks um advance.
 

TRISH00W

Member
Nov 23, 2020
5
0
My father has Huawei gt and gps is really accurate.

Cool, nice to know, thanks!
So, my dillema is either between picking the GTR with ability to sync to strava but with ****ty GPS, or get the Huawei gt1 with good GPS but without ability to sync with strava (at least not with workarounds).
Hard to choose Im so confused :S
 

dbagy

Member
Nov 14, 2015
42
6
Cool, nice to know, thanks!
So, my dillema is either between picking the GTR with ability to sync to strava but with ****ty GPS, or get the Huawei gt1 with good GPS but without ability to sync with strava (at least not with workarounds).
Hard to choose Im so confused :S
Bro, go for huawei. GTR gps is useless even for amateurs. Got one and will never buy huami or amazfit.
 

TRISH00W

Member
Nov 23, 2020
5
0
That's the point. ****ty gps = ****ty strava :)

Yeah thats true, I could always use my phone GPS but I dont think its fair to pay for a smartwatch with announced GPS and then barely use it because its ****. For pure aesthetic I would rather buy a normal watch... So the last updates didn't solve the GPS issue? Because I see some reviews saying it helped a lot, others saying it didn't, I dont know what to think. You have any idea if the GTS have bad GPS aswell? I like the Huawei GT 1 and everyone talks good about it, but the missing strava sync gives me second thoughts.

---------- Post added at 11:08 PM ---------- Previous post was at 11:05 PM ----------

Bro, go for huawei. GTR gps is useless even for amateurs. Got one and will never buy huami or amazfit.
Even after the last updates? Because I saw some reviews saying it helped a lot, others saying it keeps ****... Do you know if the GTS have those GPS accuracy problems aswell? I like the Huawei GT 1 a lot, but Im having second thoughts because of no sync with strava. By the way, do you know if the bluetooth being not the last generation (4.2) is such a difference from the 5.0 that I will notice it?
Thanks
 

sailangkham

Member
Sep 28, 2019
13
4
You cannot make a slik purse out of a sow's ear. The GPS performance of the GTR is awful and will remain that way; any suggestion that Amazfit will be able to recitfy this with a firmware update is just rubbish. If you buy a GTR and wish to use Strava, you will need to carry your phone with you to provide the GPS.
 
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marcinj6

Member
Jan 12, 2012
9
0
people, and what is your GTR production date? I have one from July 2020 and I do not complain about GPS so much. fixa catches max 30 seconds and can draw a trace exactly. it is best to update the a-gps before starting training, calibrate the compass and take off and catch the fix and if you catch it, let it find all available and start training. let's face it, watches with perfect GPS cost a lot more. I also tested various huaweii watches and they can also show nonsense. some people do not know that there are structures or devices in their area jamming the signal and any gps device will go crazy.
 

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  • 4
    In other discussion, isn't the CXD5603 Sony chip also used in Pace and Stratos?
    Is it just the antenna that's badly designed or missing altogether?

    According to https://www.sunnic.com/english/05_news/02_detail.php?NID=213 , shouldn't it support Galileo & BeiDou also?
    [/url]

    The Sony CXD5603GF is used in all their products, from Pace to Stratos 3. This makes sense, as Sony manufactures the only GPS chip with 6mW. They integrate it with external RAM and "antenna".
    All the models with their own OS share the same GPS firmware "18344,eb2f43f,126_gps.bin", that has not changed since months (May I think). So the software part, that directly controls the GPS hardware has not changed for months (although amazfit claims otherwise), just the interpretation of the GPS module output changed with the watch firmware update (e.g. outlier removal, averaging...)

    GPS uses L1, L2 and L5 frequency. However, only one frequency is used in not so recent hardware. This is L1=1575.42 MHz
    1*s544FU9v2X_JOH-0Cr63CQ.jpeg


    Now the usage of multiconstellation is limited to several factors
    Is the chip supporting besides GPS also Glonass, Beidou, Galileo? Yes, definitely
    Is the firmware supporting it? Do they pay Sony for the alogorithm? Probably not
    Is there an antenna design, with a wide enough bandwidth and amplifiers for the full range, to get signal above the noise level for the different bands? No.
    As I and other already demonstrated in this thread, Amazfit decided to not include a dedicated external GPS antenna for the watches with metalic bezel, but to use the bezel and housing itself as a kind of antenna. And this turned out to be a very bad decision. Amazfit "fixed" it by more A-GPS updates, so basically the chip has a better assumption of satelite ephemeric data. The chip can get this information itself from the GPS signal, as it is encoded within. However, this assumes the device has a good enough antenna to decode the data without error.
    3
    After a successful all-day test of catching fixes on the GTR (on average 20-40sec each time - but in a steady position when determining) I did a test today on GTR and old Bip at the same time on the same hand :eek:

    View attachment 4893211

    As you can see, the GTR catches the fix more slowly than the Bip, and has a worse signal quality that does not improve with time ... As for the battery, I had about 90%, what is worse, on the way back I wanted to turn on the registration and GTR will not get through these 6 min fixa already on the way, bip caught fix after 20 seconds of walking.
    In the GTR either the battery below 90% or the temperature -2'C caused that he stopped catching the fix ...
    3
    hey guys, I'm about to buy this watch (or the verge), but this GPS fix problem is a problem, the updates have fixed this problem? Can someone confirm? thanks
    If you want a beautiful watch and don't care about GPS, buy a gtr, but if you want a real smartwatch, with GPS working, buy an stratos 3.
    The gtr GPS is very inaccurate (even after last update my 9km walk is being measured with 5% inaccuracy, and maps shows bizarre movements. So gtr GPS is more a toy than a real useful resource.
    2
    Does anyone know something of what happened with Amazfit app??? I search in web but no success, does anyone knows if in IOS the app is still available? I sent a email to amazfit support, but they stopped answering me a long time ago
    Today the app has been update and now the compatibility turned ok

    New App dated 19/09/2019
    In the new version they have removed the "button" for check update in the watch

    Like the feedback in the next posts, with the new APP, HUAMI have reenabled the compatibility between APP and most smartphone.
    But the app crashes when trying to open one of the recorded workouts

    Please note that somebody told me in a italian amazit related facebook group!
    I would never take a look at the worouts in amazfit app, because most of all I share them into Strava, and check them in the Strava web portal!

    The only times i opened them were when I have to check how many times my GTR looses the GPS signal during workouts
    Because in Amazfit app this bug show some blanks between the tracked routes (bad thing... but correct), instead Strava connect the 2 stop-start point with a STRAIGHT LINE (mmmh, not so useful)


    Andrea
    2
    Every GTR model made before October 2019 seems to have a defective GPS.
    Some users write on FB that they bought the GTR in October and that their GPS fixes within 10 seconds and the accuracy is perfect
    TD0hjNl.png