Rollme S08 GPS no sattelite fix

@alexsandroz Like pablo said. I used a Hairdryer and a cutter-knive. I heated and carefully turned the whole side of cutter to shear off the screen. It went fine, but I would not really recommend the cutter as tool. My guitar pik was too big and weak for the small gap.
My watch is still open, because I didn’t find a real solution. Its still unclear weather it is the firmware or the antenna thing. GPS and bluetooth are (for me) the most importent part of a full android watch.
I will try to solder a wire to the contacts, thank you for bringing me back on this project. :grin:

For gluing it back together I bought B6000. A classic smartphone glue. Maybe heating only is enough.

@pablo11 Is there a chance of a new firmware for the China EPO data GPS problem?
@pablo11 They should make it a full android metall watch. :laughing: I mean, form follows function!

Thanks for the answers. I will try to open the smartwatch this week.

Good Luck!
Last week I’ve soldered 3 wires to the golden plates on the right, but the Signal did not improve. So far no luck. Will try the other side of the right contacts.
The watch is very well enineered. It is good that you could repair it. Good for the Environment :evergreen_tree:

If you search this forum for ‘no GPS’ you get a lot of similar results, so maybe it is a common problem with all of these watches. 2 years ago I had a lem12 and the GPS was not perfect but up to 5m pretty accurate.

I think the issue is that the GPS config data in the NV data directory is wrong and cannot be altered without a huge amount of issue.
If it is the Android 7.1.1 version it can be achieved through patched boot and root but in Android 10 it is not possible.
I believe this is why it passes tests in the Chinese factory but not elsewhere…

It is also almost impossible to get a decent result without using AGPS all the time.
So without Wi-Fi or Sim cellular data - the data is not good.

Have you used the built in engineering tool to reset and clear the GPS data and perform a cold start?


Hi! Long time no see. I’ve Android 7.1.1 and I had it rooted already.
Can you give some advice where I can find out more about this patch.
I’ve just turned on the watch and its still working, after almost a year. :grin:
Many Greetings!

Your safest way is to download MTK engineering shortcut app from the play store and enable USB debugging.
Then keep tapping on the firmware version number and enable full developer options.
Then use the app and hopefully it will open up the engineering tool.
Then you can swipe across the GPS settings and clear the data.
Then turn off Wi-Fi and cellular connections and go outside and perform a Cold Start in engineering tool under GPS settings.
It was take some time to get a lock on first run.
I hope this works.
I haven’t tested Android 7.1 for a while now.
Good luck :+1:


Thank you for your quick response. :sun_with_face:
I will try that exactly in that order.

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@Ctc_Nick Did the MTK engineering solution work for you? I just find out that my Lem14 GPS no longer working, and hopping that a software solution would prevent me to open my watch.

Have you tried a factory reset ?


Not yet (it will take me near 2h to put back all my apps&data), but since I am using FAW 1.2 for over a year without a problem, it is probably hardware related. BTW, no need to install MTK engineering shortcut on the FAW, only need to dial: ##3646633## (no sure if full developer option is needed)
@pablo11 Can you confirm that the antenna connect to the pcb via the 6 square on your previous picture and there is no relation with the re-soldering that Tan_Laz have made?