XPost: comp.mobile.android, alt.home.repair   
   From: nospam@nospam.invalid   
      
   In article , Libor 'Poutnik' St?í?   
    wrote:   
      
   > Android applications and I suppose iOS ones as well   
   > do not determine location on their own,   
   > but ask the OS what the location is.   
      
   correct.   
      
   > So OS does matter, as how it is done is the OS business.   
   >   
   > I have few strange questions:   
   >   
   >    Does it track you only within ranges of supposed Wifis ?   
      
   location can be determined via one or more of wifi, cellular, gps   
   and/or bluetooth, depending many factors.   
      
   > or   
   >   
   >    Does it even track you without any wifi in the range ?   
      
   it can, but obviously not via wifi.   
      
   > In case of the former,   
   >   
   >    Does it track you only at known locations,   
   >    where the device has been before ?   
      
   for wifi, no.   
      
   >    Does it track you even at new locations   
   >    with wifis unknown to the device ?   
      
   for wifi, yes.   
      
   > It seems to me not probable   
   > to have pre-downloaded all wifi location database.   
   > Perhaps, it may predownload the data for nearby area only.   
      
   correct.   
      
   only a very small subset is kept on the device, which is for the local   
   area.   
      
   the entire database covers the entire world. there is no reason to   
   cache all of it.   
      
   > I would rather believe the tablet does not behave   
   > in the way you suppose it to behave.   
   >   
   > Sometimes a particular HW is present,   
   > but not available for the user rather for business reasons,   
   > being either deactivated or just not used.   
      
   very rarely.   
      
   in this case, there are two versions of the ipad, a wifi-only model and   
   one with cellular/gps.   
      
   > It is cheaper to produce 1 version   
   > and selectively disable optional features.   
   > Or, selectively disable it just for user applications,   
   > but not for the OS.   
      
   except when the additional features incur a significant cost, as with   
   the cellular/gps ipad, largely due to qualcomm's licensing fees.   
      
   > E.g. Xiaomi MI A1 does have the FM radio chip,   
   > ( one can listen the radio via the service menu )   
   > but it is not mentioned in manual   
   > and there is no builtin nor downloadable FM application   
   > that would work.   
      
   that's only because the chipset they use already has fm.   
      
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