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since I got my jasjar I I saw,sometimes, the battery was drained at 50% without using my jasjar in 3 or 4 hours. only one or two short phone calls. no msn running or any application. I have written a little C program that writes to a log file each 10 seconds the actual time(hour, minute and second) . ok, if there isn't 3g connection (of course, no programs running), and I turned off the device and when I turn on the device 5 minutes later I could see the CPU hasn't been running, so minimal battery drain. But if I do the same test but connected to UMTS (again no programs running, only the test program) I could see that my test program many times continues working many minutes, so cpu is working (i turned off the device), then it stops few seconfs, again It continues working....(the screen was turned off). so......be carefull if you turn off your jasjar with the umts connection active. while you think that your device is turned off and you are saving battery......its possible the cpu is running eating the battery.
and how do you disable UMTS and just leave GPRS on????
mmm, i simply disconnect the umts connection if i am going to turn off the device....
I have seen that my JASJAR is sporadically sending/receiving data in the background even if the applications are apparently inactive. This is causing the radio connection to stay up for a long time. Especially on Vodafone Spain UMTS network radio connections are kept for ~20seconds after the user data is sent.
The only application I had running was ActiveSync, with an update period of 5 minutes. However, within the 5 minutes I can see activity in the channel every 40 seconds approximately, even when ActiveSync has finished synching.
Anyone knows of any good packet sniffer for WM5.0 to identify exactly what that traffic is for?
As a consequence of what I think is background ActiveSync traffic, radio transmission is performed for a considerable amount of time (radio channel is active 33% of the time in my case), which drains battery extremely quickly.
This is related to this specific network implementation (all data sent on CELL_DCH mode, for those who understand UMTS RRM, though this is very likely to change in the near future), while other operators are using CELL_FACH, more similar to GPRS behaviour and more efficient in terms of battery usage. What network operator are you using?
If you want to avoid the UMTS network in order to maximise battery you can force the phone into GPRS only mode in Settings-->Phone-->Band and changing from Automatic to GSM... at the cost of not having video-calls, simultaneous voice+data or high download speeds.
Thank you y gracias !!!
If you want to avoid the UMTS network in order to maximise battery you can force the phone into GPRS only mode in Settings-->Phone-->Band and changing from Automatic to GSM... at the cost of not having video-calls, simultaneous voice+data or high download speeds.
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Click to collapse
I have done this and ive noticed i have alot better signal strength now,
really, before i could never get over 1 bar and often saw it was scanning to try and find a network, now im nearlly allways all bars,
I dont use UMTS so im well happy with this setup
My phone constantly transfers data eating up the battery. I manually turn off data on the comm page. It stays off briefly then begins again. Any ideas?
Try this file, unzip, transfer over, install, open NO GPRS from the programs menu and hit toggle.
That should do it, just hit toggle to re-enable.
This is posted elsewhere, try using search first.
go to activesync, menu->schedule
and set "peak times" and "off-peak times" to "manually"
I once had this when I had an MMS trying to download. Delete the MMS header from your mailbox or specify the network/connection which should be used for downloading MMS.
clarksdv2 said:
My phone constantly transfers data eating up the battery. I manually turn off data on the comm page. It stays off briefly then begins again. Any ideas?
Click to expand...
Click to collapse
Check the MMS...
But the big question is... do you have push mail or perhaps a weather program?
Push especially will keep your data connection on as it is constantly polling your email...
The good news is if your are connected it doesn't necessarily mean that you are using data. If you are in a 3G area then an H icon will appear instead of the 3G icon while there is a data transfer...
If you want to stop it alltogether check out MoDaCo's NoData or the GRPS above..
No push email or other data service
I have my personal email on 30 minute retrieve increments other than that I have no other data services. My phone is just on this constant data call although no data is being transferred. This subsequently drains my battery awefully fast.
well, what is exactly the problem? is it that your pda
"is just on this constant data call although no data is being transferred"
or
"constantly transfers data" ?
More details.
The phone is engaged in a constant data call represented by 3G with the left and right arrow, however, no data is actually being transferred. The battery is draining within 8hrs on standby because the high transmit to receive ratio. Although no data is transferred the radio constantly interrogates the cell site thus throwing out unnecessary power. If I manually disengage via the communication manager, the phone will hang up the data call for a brief period, but will reengage fairly quickly. I can't find any settings that would create this situation. I downloaded the program in this post, but the phone still continues the data call. This has never happened on this phone until a month or so after installing the ROM flash with WM6, but I can't be sure if there is a direct correlation with the new flash. Thank you all for your help.
clarksdv2 said:
I have my personal email on 30 minute retrieve increments other than that I have no other data services. My phone is just on this constant data call although no data is being transferred. This subsequently drains my battery awefully fast.
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Click to collapse
try turning off this 30 min email and make it manual to see if this is the cause...
not sure if u have htchome weather, because it will also auto update every few hours...
http://wiki.xda-developers.com/index.php?pagename=My Pocket PC keeps connecting to the Internet.
have you checked the activesync schedule time?
furthermore goto commmanager and disable direct push. if your commmanager does not show you the icon to disable direct push, install schaps advanced config and activate there the icon.
i am pretty sure that one of these two options causes the problem.
what other apps have you installed?
if all this does not help, hard reset your device and install/config one app after another.
Same Problem
I've got the same problem. I'm using the default HTC WWE ROM. At random times, sometimes twice a day, my "Rogers Internet" data connection (GPRS, EDGE or 3G) connects automatically and doesn't disconnect. If I catch it happening and click cancel, it tries again. It will not give up until the connection has been established for at least 10 seconds.
I've gone through every program I have, checking to make sure the auto update option is disabled (if there is an auto update). I do not use the direct push and therefore, activesync schedule is greyed out.
Any ideas?
I'm suprised that it drains your battery so quickly. My phone stays connected at least 90% of the day, and I usually have at least 70-80% battery when I get home from work, usually more. The only time that it gets drained quickly is when I'm browsing the web too much on NetFront 3.5...a notorious battery drainer.
Sorry I couldn't help...but maybe it's a battery issue? Since I'm connected so much and have no battery issues? Or maybe a radio change could help you?
I don't have any abnormal battery drain, just weird auto-connect problem.
are you sure you have checked every single program? there has to be something that's trying to connect to the internet to grab data. weather apps, time sync, quickgps (i know, ridiculous, i'm just throwing it out there). try looking at what processes are running in the background using a task manager. that might help you eliminate suspects.
I have Spb GPRS Monitor on my phone. I've been looking at the logs. There is no pattern to the connections and they seem to be never more than 20k connections. I've installed NoGPRS and will use that while I'm sleeping. Just weird that it connects at all.
I had a similar problem, so I installed KaiserTweak and changed the setting to disconnect from 3G after use and that did the trick for me - no more constant connection and the battery stopped heating up and dying quickly.
Folks,
I use the WiFi connection on the Exec a lot, pretty much all day every day in fact. The problem is I have to change the power settings of the phone to never shut down otherwise when it does, the WiFi connection gets dropped and the a GPRS gets established instead - and that costs!
Is there anyway to prevent the WiFi getting dropped when the phone shuts down? Or maybe a way of making WiFi a priority over GPRS so it will connect that first?
I suppose worse case scenario, I could disable the auto connect feature of GPRS, anyone remember the hack for that?
Tom
Hi, there's a hack for that in the following thread:
http://forum.xda-developers.com/showthread.php?t=257415
I have been using a dialing CDMA cell over bluetooth for internet access from BlackStone.
The connection goes dormant after 10 sec inactivity. Each wake up from dormancy is charged a new call
Is there any app (preferably freeware) that constantly pings a public server say yahoo.com in background to keep the connection Alive?
crajee said:
I have been using a dialing CDMA cell over bluetooth for internet access from BlackStone.
The connection goes dormant after 10 sec inactivity. Each wake up from dormancy is charged a new call
Is there any app (preferably freeware) that constantly pings a public server say yahoo.com in background to keep the connection Alive?
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Click to collapse
HD Tweak has this ability just download and install and check what you want your phone to do I believe it has the option to remain connected when phone sleeps
Thanks for that ... I already have it.
Here the problem is not HD going to sleep but the external phone data connection... So I need to ping it repeatedly. I do on desktop with the ping command. (and earlier in my palm PDA by a IM client for Jabber).
Now on PPC I am lost. I tried an app called GPRS keep alive for WM5 but doesn't seem to work well on WM6 of THD.
ozmoran said:
HD Tweak has this ability just download and install and check what you want your phone to do I believe it has the option to remain connected when phone sleeps
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Click to collapse
Do you found a solution for the disconnect problem? At the moment I use "hrping -t -s 5000 google.de" at my desktop or vxUtils directly on the TouchHD.
vxUtils unfortunately makes the device so slow/unresponsive as to be useless. (looks like some incompatibility with the graphics processing of HD becuse CPU utilisation is not high).So still looking for a useable solution.
Hopefully some one writes a simple pinging utility... My service provider is minting money by data calls every 20-30 sec!!
Hi guys,
I have recently moved from symbian platform to WinMo. I do have a question regarding data connection. Does it ever auto disconnects? (for example in my old N95 if I clicked sync in my mail application, the phone would connect, download new mail and then auto disconnect when the job was done)
Also the phone would disconnect from data connection after closing app that was using it.
Now with my HD2 when I sync email, refresh weather etc the data connection stays on. Do I have to disconnect it manualy every single time so it doesnt drain my battery? It is very annoying since I have to do it manually very often.
Please advise... maybe I am missing something...
Cheers
Pete
Hi,
There's a few threads on here on data connection disconnection. There is also a hints & tips thread right at the top of this page.
Use this tool to find what you are looking for..http://www.google.com/advanced_search?q=+site:http://forum.xda-developers.com&hl=en&lr=&as_qdr=all
WB
install the 1 min disconnect tweak thats on this forum.
if you only set emails to check automatically it will disconnect ok using the above tweak but if you have weather and/or twitter apps connecting to update for some reason it will not close the connection at all i have told htc but never heard back
The only real reason for disconnecting a data connection is if you want to prevent unwanted costs associated with data exchange.
If you're in a weak signal area you can save battery by switching the connection band to GSM rather than 3G, but in a strong signal, 3G is more power efficient.
An open, but quiescent data connection has little or no effect on battery life as it's simply using the network infrastructure; battery usage only occurs during actual data exchange. So, if you turn off all the auto-update features and set email polling to a longer interval you should be OK. Kind of defeats the purpose of the device though
NeilM said:
The only real reason for disconnecting a data connection is if you want to prevent unwanted costs associated with data exchange.
If you're in a weak signal area you can save battery by switching the connection band to GSM rather than 3G, but in a strong signal, 3G is more power efficient.
An open, but quiescent data connection has little or no effect on battery life as it's simply using the network infrastructure; battery usage only occurs during actual data exchange. So, if you turn off all the auto-update features and set email polling to a longer interval you should be OK. Kind of defeats the purpose of the device though
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Click to collapse
From my experience all Symbian devices and the iPhone auto disconnect from the network once the data connection is no longer needed. They also reconnect in the blink of an eye. It kind of irritates me that Windows Mobile doesn't allow you at least the OPTION of doing so. It's particularly annoying if you're connected to a speaker and can't get 3g as there's a constant noise going off. I also think it can't be great for your balls having that connection constantly active! It's not HTC's fault though, just I think a result of Windows Mobile being inherently quite archaic...perhaps Windows have just overlooked it.
There's a great free app HERE to tweak the WinMo connections for individual apps. It's a must have for me.
petexx said:
Hi guys,
I have recently moved from symbian platform to WinMo. I do have a question regarding data connection. Does it ever auto disconnects? (for example in my old N95 if I clicked sync in my mail application, the phone would connect, download new mail and then auto disconnect when the job was done)
Also the phone would disconnect from data connection after closing app that was using it.
Now with my HD2 when I sync email, refresh weather etc the data connection stays on. Do I have to disconnect it manualy every single time so it doesnt drain my battery? It is very annoying since I have to do it manually very often.
Please advise... maybe I am missing something...
Cheers
Pete
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Click to collapse
This really isn't a problem, I've seen N95's that retain their connection at all time (and some that don't) and to be honest it just makes your handset a little quicker.
WMLongLife is the nuts. You need it.
Thanks for the link, I pay per minute on my connection (rather than data transferred) so an open connection is not good for my bank balance