Wifi / let's have RF stuff powered with high current source all the time because...

William Kenworthy billk at iinet.net.au
Tue Aug 26 14:28:05 CEST 2008

On Tue, 2008-08-26 at 14:24 +0900, Andy Green wrote:
> Hash: SHA1
> Somebody in the thread at some point said:
> | Ive seen this a few times on two FR phones (both up to date 2007.2).
> | Yesterday, after using gps on the way to work tangogps locked up - some
> | 10 minutes later when I pulled into the car park I picked the phone up
> | and it was *very* warm to touch.  I managed to exit tango (not always
> | possible - its not the most stable app after running 30mins or so!) and
> | checked the battery - ~38% when it was ~90% 45 minutes before.  10
> | minutes later in my office it was down to ~10% and still hot so I
> | rebooted and recharged.  This has happened maybe 5 times to me now.  The
> | other phone user had a flattened battery after a few hours - dont know
> | the exact details but gps wasnt involved.  The phone was hot enough that
> | I was worried about putting it in my pocket in case the li-lion battery
> | went up in smoke.  I expected it to cool down once I had exited tango,
> | but it didnt until reboot.  I was more worried about damage than finding
> | the root cause - next time!
> :-(  How did history of incoming or outgoing calls since it was booted
> fit into the story each time if you can remember?
> - -Andy

I have no memory of any calls coinciding.  And yesterdays was a clean
boot in the morning, with no calls up until the problem ~an hour later.
Thats not to say a call came in and didnt register - but I have had none
asking why I didnt call back :)

Every case though was during gps use: openmoko-agps was run first until
lock was obtained, then tango-gps.  In only the last case though, did I
notice the FR being warm/hot to touch.  Otherwise it was the battery
being drained at an unusually fast rate - stood out when I checked the
battery charge level after restarting (I have a fair idea where the
battery is at at most times.)

Not really scientific or smoking gun stuff I'm afraid.


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