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.
Click to expand...
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
[email protected],
I've a question, is there a way to switch 3G permanently on via CommManager? Editing registry or so. I know that I can set this in settings>phone>band, but in CommManager I can only select Automode or GPRS. The problem with that is, that I have a weak 3G signal where I live. So the phone registers to UMTS but whenever I start Internet, it switches back to GPRS, then back to 3G, after a time again to GPRS and so on. The phone stops any loading while reregister so this is really annoying, not to mention the lower speed on GPRS. I'd be happy with any solution. Thanks.
Dennis
Hi guys,
I've been a HTC and Windows Mobile user a little while now. I previously had a Trinity (HTC 3600) and now I have the Touch HD. It has come to my attention that I really need to figure out what the data terminology really means.
I have noticed that when using my phone, data connections are automatically initiated when I perform/launch specific applications that are obviously using a data connection, such as:
- Google Maps
- Tom Tom Traffic
- Internet (opera/internet explorer)
- Manilla 3D Weather
- Manilla Photo uploading
- etc.
I have found it annoying at times that data connections have started without informing me, and then to make things worse, the connection doesnt cancel at the end of its task, it needs a manual disconnect.
I've gradually gone through the settings of most programs, turning off any form of "automatic update" setting. So im happier knowing that most of the time my phone shouldnt be unexpectidly in the middle of a data connection.
But on occasions I look at my phone, and see that its had a data connection open for over an hour (although my guess is that hardly any data has been transfered on these occasions).
So firstly, could anyone reccomend any programs that can monitor my data connections or usage and even force me to give authorisation whenever a data connection is requested?
Secondly, I find that if I have my wifi connection connected, all apps that try to use a data connection use this to channel their data through, this is perfectly fine and is the behaviour I expect, but when I'm using Windows Messenger on my phone, while on wifi, for some unknown reason, it feels it can establish another data connection (regardless of the wifi being connected and operating) - and that is very annoying.
Most of my concerns stem from the fact that I only have off-peak free data time on the web with my provider (Orange).
Lastly, could someone help explain the differences between:
GPRS
3G
HSDPA
I think GPRS is what sat nav apps use for geographical positioning using satelites, and its free. But im not sure about the others, are there others that I am unaware of too. I think 3G and HSDPA are data connections, but what makes one different from the other, and why is it only sometimes 3G is used, and another time HSDPA is used?
Im in London, UK, and I notice on my phones signal bar, that it can often change to show a "G" or a "H" or a "3G" and there could be others. This is all so confusing, and my main concern is about paying for data connections etc.
Oh... and whats the difference, or whats the point of telling the phone to use "Work" or "The Internet", this also confuses me.
Although this is a bit of a long winded post, I'll appriciate any bits of help and advice given.
Thanks in advanced,
WizzKidd
Ok, i've been doing some reading, and for the sake of those who "search" these forums in the future, this post will at least have an answer (even if im kinda answering it myself).
My understanding is as follows:
The 4 data channels are: GSM / GPRS / 3G / EDGE
In order of their age (oldest to newest)...
GSM: (Global System for Mobile communications)
- The European standard for the majority of handsets.
- Primary usage is voice.
- Tri-band GSM allow Europe to operate these phones and Quad-band GSM allows some Far East to operate.
- Can be used with the GPRS core network for data.
GPRS:
- One of the first widely used data channels
- Can transmit data of up to 60 KBits/sec
- is battery friendly
EDGE: (Exchanged Data rates for GSM Evolution)
- based on GPRS
- Can transmit up to 473.6 KB/its per second
- ideal for heavy webpages, and downloading email attachments etc
3G:
- Originally for video data calls but also efficient for web/email, im and voip
- very popular channel, most UK and some European networks now have 3G networks and with speeds similar to EDGE
- not battery friendly when searching for new 3G connections
HSDPA: (High speed Downlink Packet Access)
- Based on 3G technology
- Supports speeds of up to 7.2 MBits/sec (but in reality you usually get 3Mb/s)
- very good for high bandwidth usage like video streaming
So, what ive gathered from all this is that the phone can switch its data channel depending on how demanding the application is for bandwidth and also what data channels are available in the area.
Please correct me if i am wrong, assumtions and corrections is the best way to learn.
Thanks,
Wizzkidd
PS. I still dont see the point of Windows Mobile asking me if this network is connected to "Work" or "The Internet".
Isn't HSDPA also called 3G+ ?
GPRS
Hai Wizzkidd
What you can do is: put gprs off. Go to settings-> connections-> connections. On the tab tasks you wil see: my isp. Open de link modify and select your isp. Hold it down and remove settings.
You will still be able to make phonecalls and sms. You will have to get your updates etc... through wifi or sync.
me to, Orange/(3G) - are they the same ?????
wizzkidd said:
Hi guys,
I have found it annoying at times that data connections have started without informing me, and then to make things worse, the connection doesnt cancel at the end of its task, it needs a manual disconnect.
I've gradually gone through the settings of most programs, turning off any form of "automatic update" setting. So im happier knowing that most of the time my phone shouldnt be unexpectidly in the middle of a data connection.
But on occasions I look at my phone, and see that its had a data connection open for over an hour (although my guess is that hardly any data has been transfered on these occasions).
So firstly, could anyone reccomend any programs that can monitor my data connections or usage and even force me to give authorisation whenever a data connection is requested?
Secondly, I find that if I have my wifi connection connected, all apps that try to use a data connection use this to channel their data through, this is perfectly fine and is the behaviour I expect, but when I'm using Windows Messenger on my phone, while on wifi, for some unknown reason, it feels it can establish another data connection (regardless of the wifi being connected and operating) - and that is very annoying.
Most of my concerns stem from the fact that I only have off-peak free data time on the web with my provider (Orange).
Lastly, could someone help explain the differences between:
GPRS
3G
HSDPA
I think GPRS is what sat nav apps use for geographical positioning using satelites, and its free. But im not sure about the others, are there others that I am unaware of too. I think 3G and HSDPA are data connections, but what makes one different from the other, and why is it only sometimes 3G is used, and another time HSDPA is used?
Im in London, UK, and I notice on my phones signal bar, that it can often change to show a "G" or a "H" or a "3G" and there could be others. This is all so confusing, and my main concern is about paying for data connections etc.
Oh... and whats the difference, or whats the point of telling the phone to use "Work" or "The Internet", this also confuses me.
Although this is a bit of a long winded post, I'll appriciate any bits of help and advice given.
Thanks in advanced,
WizzKidd
Click to expand...
Click to collapse
firstly = http://www.modaco.com/content/pocket-pc-software/246171/new-free-utility-nodata/ - not TESTED on my ELF { http://forum.xda-developers.com/showthread.php?t=318414&page=4 }
secondly = I had to 'make do' with a 'modem', for a bit. A '3' ZTE MF622 USB modem, it uses hdspa/3G. network3's website, classes this modem as a phone/sim - was PAYG, though (mythree. . . . ) - - - - THE HDSPA downloaded, "" faster at times than virgin-cabled Bband did !!! "" - watch [task mgr]->[network]
thirdly = NICE ONE !!! 9.75/10 for the (101/explaination's of the connections) and the check Ur not updating Ur Apps, all/some of the time.
shame the [comm mgr]->[phone]="wake on lan"/(x)
still under usb, i cannot Ms Direct push / Data connect
only LIVE via usb - NO WIFI (connected, but ...)
networks
Hi,
I think your question about preventing automatic connection has been explained.
As for GPRS, 3G and HSDPA,
They are all cellular data connections but will vary in speed and stability.
GPRS and EDGE (can provide what each stand for but i am sure google would do the work for me)
They are the packet data networks when using the 2G networks. GPRS (2.5G f you will) has downlink speeds of around 28kb/s and EDGE (2.75G) 100kb/s.
3G (UMTS) max's out around 384kb/s and officially HSDPA (3.5G) can is commercially available at 7.2mbps. All the speeds above are network dependant as all can be capped.
Most operators are now testing HSDPA and HSUPA (3.75G - same downlink speed as HSDPA but faster uplink, the speed however escapes me ) on speeds greater than 7.2mbps.
You will not be charged differently for each network type and each will come out of a data plan at the same rate.
The 2G networks are more stable but slower and the 3G networks are faster but due to congestion issues the connections have been known to drop as i am sure some other users will agree.
The thing sat nav software uses for positioning is GPS (Global positioning system) and not GPRS (general packet radio service). GPS is a handset feature like wifi or bluetooth and nothing to do with the network.
Hope that helps.
Cheers
Ross
HSDPA
Hey guys, I just wana know if any of you know how to make your phone connect using hsdpa only. Because this is realy fast compared to other connections, and its annoying when the device switches to gprs or some other type of connection which makes the net super slow.
Ok GSM is a wireless technology like CDMA it has very little to do with actual data use.
GPRS(2G), EDGE(2.5G), UMTS(3G), HSDPA (also 3G), HSUPA(3G yet again), HSPA+(3.5G) All of these, are technologies that allow internet connectivity or data transfer, at different speeds. Depending on the tech your service provider uses your speeds will vary, that being said, you, don't pay extra when your connection switches.
GPRS: General Packet Radio Service...
Pipsqueak approved this message
Hey guys, it seems that you can simply select WCDMA only option in your setting to connect using only HSDPA.
This is not about HOW TO DISABLE the data connection: I know there are plenty of ways and apps to do that, even automatically.
As regards me I have two manual options to do that on my phone:
1. In the Comm manager, under Wireless Controls, I have 3G on/off option, which I can use to switch between 3G and 2G network
2. ModaCo NoData, which I can use to ENABLE/DISABLE my "H3G Internet" data connection
My questions are:
a] do I have to use both?
b] if either one is enough, which one is the best (or: what is the difference between the two)?
Thanks
I believe if you are on the 2G network, you can still connect to the internet via GPRS?
thegios said:
1. In the Comm manager, under Wireless Controls, I have 3G on/off option, which I can use to switch between 3G and 2G network
Click to expand...
Click to collapse
This does what it says, switches your phone from 3G/2G networks to 2G only. But in both cases your phone can place a data connection, only it will be slower when on 2G (GPRS/EDGE).
To disable the connection, you need to use nodata. The other option does nothing in this regard.
So in the end your question still actually was about how to disable
Fine understood
New question then: considering that I have automatic wetaher/location/facebook.pushmail active, if I disable data connection at night and in the office, would this save battery life?
Most likely a little,yes. But data connection barely uses anything when idle, so you save the little amount of traffic that takes place from the updates. And the phone will still wake up at the update intervals to try and connect, which drains pretty much the same as the connection itself.
Hi all,
Can someone help me please : ) Thanks
The problem is network connection mode from GSM to WCDMA and opposite WCDMA to GPRS
Is It some way I can disable GPRS data connection, but keep WCDMA data connection + keep GSM signal as well
I will explain way : )
The problem is when Im driving my car and listen internet radio.
So when Im driving seem Im passing 3 Network Cells in my road to work
Each time when phone connecting to other cell first he connects to GPRS signal later he changes to WCDMA data Everything is logical maybe how the network cells works
But it is not good for me as the time phone goes to GPRS data / mode my radio stop working and before I have 3G signal maybe 5 minutes or more ….
1 When phone in GPRS mode and the radio on it is seams trying to stay for wile before connecting to WCDMA Maybe up to 5-10 minutes
2 When phone in GPRS mode and the radiooff phone in couple minutes changes to WCDMA
---------------
So one day I set my phone network to WCDMA MODE to see what happens and I can to believe that my phone all time keeps 3G ( WCDMA) connection without problem Internet radio work without stopping not crashing nothing at all everything perfect ….
BUT When I drive to my work place where is the signal very poor I have lost phone connection to network because my phone signal to only WCDMA MODE -- So to have signal in my work I need to change to GSM mode or auto mode
Is it some way I can have GSM mode + WCDMA MODE but without GPRS data connectivity or some way to block my phone connecting to GPRS mode data ?
Thanks for help
I have found on google play
Than someone have app for what I need The app name 3G Data Only
But I would like to know how manually I can disable 2G data ?
I do believe that in phone setting some way impossible to disable this + my phone rooted so I can what I need : )