07 June 2010 - Solved by OTA update: Potential cause for excessive battery usage

I noticed that my new Desire had close to 100% awake time (Settings>About phone>Battery), which has historically been an issue for other HTC devices (Sprint Hero). So I checked the Battery info (punch in *#*#4636#*#* in the phone dialer), and under “Battery history” it shows “Running” as 100%, which indicates the same awake time. If I change the top pull-down to “Partial wake usage” it shows me that the calendar is running more or less constantly.

Could this be an underlying cause of poor battery life? (not that it’s that bad in my opinion – seem to get 15-20 hrs out of one charge – But my Hero could last 2 days or more)

Would someone please bother to retrace my steps on their devices to see if they get the same results?


UPDATE APRIL 21 2010: PARTIAL SOLUTION FOUND: The problem is the calendar app. It can be solved partially by force closing the calendar in “manage applications” and then starting it up again. After doing this, the phone sleeps correctly. So something in the calendar app is preventing the phone from going to sleep – And by restarting the app it works correctly again.

Unfortunately this is only a temporary fix, since it has to be done every time the phone is powered on (rebooted) and also every once in a while without rebooting, since the calendar app for some reason resumes it bad behaviour after a day or so.

So everyone with the problem should let HTC know about it - Assuming they listen..

UPDATE APRIL 24 2010: SCREENSHOTS ADDED: I added screenshots of the issue as well as how it's supposed to look on a handset without the issue.

UPDATE APRIL 28 2010: PERMANENT SOLUTION FOUND?: Remove Flickr Sync. Go to Settings>Accounts & Sync>Flickr. Then press remove account at the bottom of the screen and reboot the phone - Please report back in the thread if successful!

UPDATE JUNE 07 2010: The issue has been resolved by OTA update to 1.21.405.2.

madmossy said:

The above command does nothing for me.

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Are you remembering to reverse the * & # at the end?

The full command is:

*#*#4636#*#*

madmossy said:

Its ok worked in the end, phone was just going slow for some reason.

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Was your awake time (partial wake) very high as well?

I did a factory reset last night and it didn't change anything. I'm starting to think it's a hardware issue, since other users seem to have a normal ratio between awake time and up time (50% or less)

Phil750123 said:

My calender usage is really really low (around 5%), i only really use this big month view widget. strange

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Thanks for replying!

Just a question: Is your 'Settings>About phone>Software version' similar to this?:

Firmware version:
2.1 –update1

Baseband version:
32.30.00.28U_4.05.00.11

Kernel version:
2.6.29.97da29ed
Htc-kernel@and18-2 #1

Build number:
1.15.405.4 CL155070 release keys

Software number:
1.15.405.4

Browser version:
Webkit 3.1

I sent this to HTC support - Let's see what they say:

I have a brand new HTC Desire that I’m very happy with and I only have one real issue so far: Battery life is only 10-12 hours on a full charge.

Going to “Settings>About Phone>Battery” it shows me that up time and awake time are the same, which seems to indicate that the phone doesn’t suspend correctly as it’s supposed to (and as other Desires do – as well as my old HTC Hero).

In the battery info console (pressing *#*#4636#*#* in dialer) it shows me that the calendar is active 80-90% of the time (by going into “battery history” and changing top dropdown to “partial wake”). To compare android system is only around 5% or less. Some Desire owners seem to have the same issue, but others also report calendar usage to be much lower and awake time much smaller than up time.

In “Settings>Applications>Running Services” it shows “ObexService” and “ConnectivityService” listed as running under Calendar.

I’ve done two factory resets of the phone to test if it had anything to do with my particular setup or apps (synchronising mail, contacts and calendar from Google as well as work e-mail and calendar through exchange). But the problem persists after the factory reset without installing anything or syncing with exchange.

Is this a firmware issue that will be updated? Or is it a particular issue with the hardware on my handset? Can I do anything to make it suspend correctly?

From “About phone”:
Firmware version: 2.1 –update1
Baseband version: 32.30.00.28U_4.05.00.11
Kernel version: 2.6.29.97da29ed, Htc-kernel@and18-2 #1
Build number: 1.15.405.4 CL155070 release keys
Software number: 1.15.405.4
Browser version: Webkit 3.1

I bought the phone from 3 in Denmark.

Kind regards and thanks for any help,

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