Gadgetbridge

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⚠ The wiki has been replaced by the new website - this page has been moved: https://gadgetbridge.org/internals/topics/huami-gps/

Some bands (Bip, Bip S...) contain a GPS receiver.

The GPS chip performs better if it has recent aGPS data.

aGPS data can be uploaded to some devices using the instructions below. Not all newer devices can be updated with aGPS data via Gadgetbridge, per https://codeberg.org/Freeyourgadget/Gadgetbridge/issues/2253

This can be obtained via https://codeberg.org/argrento/huami-token, for example:

python ./huami_token.py -m xiaomi -e my@email -p p4ssword -g

That will download the following two files:

cep_7days.zip
cep_alm_pak.zip

From the cep_alm_pak.zip you unzip cep_pak.bin and gps_alm.bin and flash into the watch.

You can also do the same with the huami-token python script wrapped into python GUI kivi and packaged for Android as the Huafetcher https://codeberg.org/vanous/huafetcher .

It downloads and unzips the cep_pak.bin and gps_alm.bin into /storage/emulated/0.