GPS modules data

Here I will be posting comparison and data of GPS modules I have.

ModuleChipHDOPCold start sec. (indoor)
HT1818U8G5L ubx-g8030-kt
(probably m8030)
so its series 8 ublox

So it seems it is u-blox ubx-g8030-kt with 2.01 firmware. Found that it has a formware upgrade:

But trying to update it to 3.01 all I got was “Flash Detection timed out.”.

Tips to increase baud rate and refresh time:

How to configure ublox GPS settings / increase update rate

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