Database Users

When I wake up my phone, it's connected to 3G, but I am on wifi.

Anyone else having this problem? I don't remember having this happen on my MT3G.
It's really eating up the battery.
I am on JI2, and I never experienced this until last night after using Odin.

you have to change the wifi sleep policy in the wifi settings. Got to settings, wireless networks, wifi, then press the menu button and select advanced.

OMG! thanks, you're a real life saver.

Sorry to bring up an old thread. I have it set to never sleep but it still does. Any ideas? Seems when the display times out, it switches off wifi.

I have wifi on all the time at home and it's set to never sleep. Sometimes I see both the wifi and 3G icons. I know my wifi signal is strong, so no idea why the phone sometimes also seems to need a 3G data connection. One example is when I test GPS at home the 3G icon will pop up briefly. Another is following a reboot. But I see other times as well, and sometimes it stays for quite a while, but eventually goes away. I wonder if perhaps some ports get blocked by my router and the phone uses 3G communication to get around it. Bit of a mystery, but I don't see any other negative symptoms.

Here is something I have experienced. This is regardless of what ROM I am on.. Stock, Bionix, whatever...
I have wifi turned on at work. Sometimes I would see wifi and 3g on at the same time.
Now today, while texting, I noticed that my Wifi connection dropped to nothing, and at that point my 3g kicked in, which I expect it to. But when my Wifi reception kicks back up again, my 3g didnt turn off. I turned off Wifi and turned it on again, and my 3g turned off.
Anyone else getting the same experience?

samnada/ELStiko, That's what I'm really seeing too as I thought my wifi was just going to sleep.

ljv said:
samnada/ELStiko, That's what I'm really seeing too as I thought my wifi was just going to sleep.
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Click to collapse
I'm pretty sure my wifi isn't going to sleep. The wifi icon is on all the time with at least 3 bars. My cell signal is definitely weaker in my location. So, if it's seeking the strongest signal my wifi will always win.
Besides the possibility that my router is blocking some ports the phone wants to use, there's also a possible security issue. I know at one point the TMO My Account app would force a switch to cell communication versus wifi and I believe it was due to security concerns. Maybe some apps do the same thing.
I just did a GPS test, got a lock, stopped the test, closed the app, and the 3G icon stayed up for a couple of minutes then went away. Just one example.
Does seem odd, but I've just assumed there's some rational explanation. Could also be a bug...

your lucky you wake up and you have 3g. i wake up my phone is always on edge. lol
Sent from my SGH-T959 using XDA App

[Q] No Radio / long time to register on network

I have Epic 4g on SPRINT USA. Not rooter, latest original firmware. I recently notice that if I get to no signal zone like subway, radio icon is crossed circle; I guess phone suspend radio and randomly check to preserve battery. Problem is that once I back to area with full signal it may take 5-10 minutes for phone to get radio back. If I attempt to make call it will say phone not registered on network. It will take me switch airplane mode on off to enforce registration on network sooner. As the result if I am located in no signal zone for an hour and have signal for 10 min and back to no signal it will not get my sms, voicemail and email during that time. Is that waiting time adjustable? Any idea?

When I'm heading down into the subway, I put my phone on airplane mode because its pointless to have the radio on when there's no signal and it wastes more battery, then when I get out I wait a few seconds and then turn airplane mode off and it reconnects like nothing.
Just try turning I on when you're going in, and when you're outside again just turn airplane mode off
Sent from my SPH-D700 using XDA App

You could use Tasker for something like this easily. Its what its made for.

No Radio / long time to register on network
But I do not want all time to manage my phone when I go to underground area or at no service area. I can use tasker, but should not it be handled by sprint? Also in tasker you expect me to use cell near and check it repeatedly once per 3min? Not much sense, as tasker will not see event when display off, it by default use to check once per 10 min, which is not good in this situation.
Any other solution? I do not expect all people using subway to turn on airline mode

leaving 4G has always bogged my CPU

Have you guys ever noticed your phone slowing down as it constantly switches between 3G and 4G? Living in Austin, I probably make the switch a few hundred times a day, depending on what building I'm in, and where my phone is sitting.
There are plenty of times where I pull my phone out of my pocket, and it's very warm, and running horrendously slow. I typically notice the 4G icon, so I disable it altogether. Usually within about 30-60 seconds, my Evo is responsive once again. I have used every stock ROM, and about 6 custom as well. All behave IDENTICALLY.
I really have had only one instance where 4G was useful, and that's when I was at a restuarant, and I wanted to tether my laptop. I was able to get a solid 4G signal, and it seemed to work great. I did find out, however, they had free WIFI, like almost every business does these days.
Not so sure I'm really sold on the 4G stuff, even though almost everywhere I go in Central Texas has good signal. It seems to waste far too much CPU as it switches back and forth, enabling/disabling radios, or whatever. If I'm in Dolphin browser, and it switches radios, the phone appears to lock up sometimes... quite annoying... happens all the time.
Anyone else with similar issues? I know most people aren't even in 4G areas though.

ScrapMaker said:
Have you guys ever noticed your phone slowing down as it constantly switches between 3G and 4G? Living in Austin, I probably make the switch a few hundred times a day, depending on what building I'm in, and where my phone is sitting.
There are plenty of times where I pull my phone out of my pocket, and it's very warm, and running horrendously slow. I typically notice the 4G icon, so I disable it altogether. Usually within about 30-60 seconds, my Evo is responsive once again. I have used every stock ROM, and about 6 custom as well. All behave IDENTICALLY.
I really have had only one instance where 4G was useful, and that's when I was at a restuarant, and I wanted to tether my laptop. I was able to get a solid 4G signal, and it seemed to work great. I did find out, however, they had free WIFI, like almost every business does these days.
Not so sure I'm really sold on the 4G stuff, even though almost everywhere I go in Central Texas has good signal. It seems to waste far too much CPU as it switches back and forth, enabling/disabling radios, or whatever. If I'm in Dolphin browser, and it switches radios, the phone appears to lock up sometimes... quite annoying... happens all the time.
Anyone else with similar issues? I know most people aren't even in 4G areas though.
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Click to collapse
Well in general I noticed this cpu spike on my sense roms even when it was turning 3g back on after leaving a wifi spot. I really blame HTC's inneficient code, since CM6 handles this so much better. I did try 4G out in my area and thought it was better on my cpu than 3g was though.

ScrapMaker said:
Have you guys ever noticed your phone slowing down as it constantly switches between 3G and 4G? Living in Austin, I probably make the switch a few hundred times a day, depending on what building I'm in, and where my phone is sitting.
There are plenty of times where I pull my phone out of my pocket, and it's very warm, and running horrendously slow. I typically notice the 4G icon, so I disable it altogether. Usually within about 30-60 seconds, my Evo is responsive once again. I have used every stock ROM, and about 6 custom as well. All behave IDENTICALLY.
I really have had only one instance where 4G was useful, and that's when I was at a restuarant, and I wanted to tether my laptop. I was able to get a solid 4G signal, and it seemed to work great. I did find out, however, they had free WIFI, like almost every business does these days.
Not so sure I'm really sold on the 4G stuff, even though almost everywhere I go in Central Texas has good signal. It seems to waste far too much CPU as it switches back and forth, enabling/disabling radios, or whatever. If I'm in Dolphin browser, and it switches radios, the phone appears to lock up sometimes... quite annoying... happens all the time.
Anyone else with similar issues? I know most people aren't even in 4G areas though.
Click to expand...
Click to collapse
After you use 4g, you need to reboot your phone. The 4g icon may go away but the phone is going to keep searching for the 4g signal. Known issue/bug. You can ssearch the forums and find lots more info on it. Free app called alogcat will show you this by conintuing to try and connect to winmax.
I live in Austin, too and use the 4g toggle quite a bit, especially closer to town, while at concerts or football games.

slugbug2010 said:
After you use 4g, you need to reboot your phone. The 4g icon may go away but the phone is going to keep searching for the 4g signal. Known issue/bug. You can ssearch the forums and find lots more info on it. Free app called alogcat will show you this by conintuing to try and connect to winmax.
I live in Austin, too and use the 4g toggle quite a bit, especially closer to town, while at concerts or football games.
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That explains why when I leave 4G on regularly, I have to reboot my phone at least once a day from slowdowns... If I leave 4G off, I tend to last almost a week before I get frustrated enough to reboot.
Really disappoints me, and I was hoping I was an isolated example. I had done several searches for this, and didn't see any results. I guess because not many people have 4G, and those that do probably toggle it on specifically for use when they are in a 4G area. Seems to me that 4G is only useful when you are sitting still... if I am in the car and I leave it on, my phone get sluggish as hell, and my battery can be dead in under an hour.

ScrapMaker said:
That explains why when I leave 4G on regularly, I have to reboot my phone at least once a day from slowdowns... If I leave 4G off, I tend to last almost a week before I get frustrated enough to reboot.
Really disappoints me, and I was hoping I was an isolated example. I had done several searches for this, and didn't see any results. I guess because not many people have 4G, and those that do probably toggle it on specifically for use when they are in a 4G area. Seems to me that 4G is only useful when you are sitting still... if I am in the car and I leave it on, my phone get sluggish as hell, and my battery can be dead in under an hour.
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Click to collapse
I believe the bug only occurs if you have a 4G widget on one of your home screens. You may be able to remove it and turn on via settings as a workaround.

Correct. Don't use the widget to toggle 4g. Go into settings and turn it on that way and you wont get the lag.
Sent from my PC36100 using Tapatalk

terrel_b said:
I believe the bug only occurs if you have a 4G widget on one of your home screens. You may be able to remove it and turn on via settings as a workaround.
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Click to collapse
I had a ROM a few weeks ago that didn't even have a 4G toggle... I think it was AOSP. Didn't like it much and came back to Sense-based. No effect on the CPU bogging.

I live in houston and not in the city, I get this every day....i stopped using 4g a while ago...it'll get better with time though
Sent from the MATRIX... while plugged into my EVO... using the XDA app... from a galaxy far-far away.......

Only turn on 4G when you are actually going to use it than turn it off. Most web tasks do not require 4G and it will improve battery life.

theres a couple guides out there for editing your 4g in and out times, signal requirements log in delays, ect. those will help big time, and you should be resetting your phone once a day anyway for good usage, also it helps to if your using 4g, turn off the mobile network because its pointless to run both radios at the same time [helpful if you have myns with the data in the notifications menu for easy chaning]

envoykrawkwarrior7 said:
theres a couple guides out there for editing your 4g in and out times, signal requirements log in delays, ect. those will help big time, and you should be resetting your phone once a day anyway for good usage, also it helps to if your using 4g, turn off the mobile network because its pointless to run both radios at the same time [helpful if you have myns with the data in the notifications menu for easy chaning]
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Click to collapse
Can you confirm that turning off the mobile network from the power-button drop-down menu actually does anything? On my phone, when It detects 4G or WIFI, the 3G icon disappears for a bit, then turns into the new one. That leads me to believe that it automatically does that for us...

I use 4G every day. I have "mobile data always on" set to on demand, so when I turn on 4G via the Extended Controls widget I use, 3G automatically turns off. Haven't had any phone slow down since I started using this method. When I turn 4G off, 3G automatically restarts, so one or the other is always on. I keep 4G always on at home, and only turn it on while out if I'm watching using large amounts of data.
At some point I made some changes in how long my phone will try to stick with 4G when there's a strong 3G signal, and that helped with streaming music/data while on long drives.

The only time you should see CPU usage is when the radios are toggling on, and off. Also when you turn 4G off, yes if you look in logcat you see that WiMAX is doing something but that's about it. IIRC it is checking the status of the 4G radio to see if it is on. The radio is off though, verified by monitoring the current drain in almost real time. The 4G radio draws about 200-300mA itself. The "4G Toggle for EVO" app by Jason Calhoun (see Market) so far has given me the least amount of hassle of the 4G widgets out there, and most of the time I don't have to worry about turning off 4G after a reboot.
On average with my current configuration I draw about 254mA (3G /display @26%/doing nothing), 188mA on WiFi. The lowest I've seen was 89mA (just coming out of sleep), and the highest I was ever to draw was 996mA (everything on, turned up, playing Angry Birds).

Under 4G settings make sure network notification is unchecked, if not the phone is forever scanning for a signal, especially if you're toggling bad. If you have it unchecked even when you use the widget it will only search the initial time when you turn on the widget. Can't say this will solve the issue, but at least stop the phone from continuously scanning for a signal should help. You can only uncheck network notification while 4G is checked. Hope it helps cause i'm in the centex area also(Waco). It helped for me when told to me by EVO owners.
Sent via HTC Supersonic: EVO 4G

I've also noticed my Evo seems really sluggish when 4G is on. Like, to the point that I always leave it off, because it makes my phone barely usable sometimes when it is on, even when I am standing right next to the 4G tower. I read through here and I'm going to try removing the HTC widget for 4G from my home screen, maybe that'll help.

kf2mq said:
The only time you should see CPU usage is when the radios are toggling on, and off. Also when you turn 4G off, yes if you look in logcat you see that WiMAX is doing something but that's about it. IIRC it is checking the status of the 4G radio to see if it is on. The radio is off though, verified by monitoring the current drain in almost real time. The 4G radio draws about 200-300mA itself. The "4G Toggle for EVO" app by Jason Calhoun (see Market) so far has given me the least amount of hassle of the 4G widgets out there, and most of the time I don't have to worry about turning off 4G after a reboot.
On average with my current configuration I draw about 254mA (3G /display @26%/doing nothing), 188mA on WiFi. The lowest I've seen was 89mA (just coming out of sleep), and the highest I was ever to draw was 996mA (everything on, turned up, playing Angry Birds).
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Click to collapse
But until/unless you reboot the phone, the WiMax continues to check the status of the 4g radio. So that would make the phone sluggish. Even with no toggle on a home screen or any screen, just doing it manually, when turned off it keeps scanning. Right Thats what alogcat shows until the phone is rebooted.
I have turned off 4g and gone about my business and been fine - went almost 30 hours on one charge and had 4g on for about 2 hours of that, so it may not be a major battery drain amp wise, but it appears to continue to scan even when turned off.

From a 2-day trial I can definitely say that my phone seems much more responsive since I removed the 4G widget. I replaced all the HTC radio widgets with the stock android one (which, of course, doesn't have 4G) and my phone seems very responsive. At the same time, I turned on 4G via the settings menu and I've left it on. It seems to be working well.

[Q] Turning off "cell" radio NOT wireless 3G radio...

Hello everyone..
here is my problem....
I no longer have cellular service from sprint, lets say sprint disconnected it...
ok so i have my evo and a bunch of things i can still do with it.
but! why is it that i cant turn off just the "cellular" radio without it going into plane mode? keep in mind im not talking about "go into wireless mode and uncheck mobile" that only turns off 3g and leaves the phone COMPLETELY ON.
i mean, i dont have the service why do i still have to put it in airplane mode (and on evo's you cant use bluetooth while on that mode)
is there an apk that i can delete so the "phone" feature is gone and no longer shows my the strength bars without the need for airplane mode? its annoying to have to turn on my "PMP" and have to see the airplane on there.

you can use titanium backup to uninstall the phone, then keep mobile networks unchecked and your good to go
edit I think it may still search for signal

NewZJ said:
you can use titanium backup to uninstall the phone, then keep mobile networks unchecked and your good to go
edit I think it may still search for signal
Click to expand...
Click to collapse
do you know the apk's to uninstall?

edwinh2209 said:
do you know the apk's to uninstall?
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Click to collapse
installing them wouldn't solve your problem, now I'm thinking delete the prl and set it to roaming only but that would drain the battery fast, that's a toughy, lemme think about it a bit
edit it would be easy if you didn't need bluetooth

Nope, there's no real way to do it. You bought a phone, not an iPod. Live with Airplane mode or get service.

you could kill the radio process in os monitor, unsure of its exact name though
edit ill 2nd dr on this one, theres no good way

Get the app "Network" by Mangelow. It has a button to turn off just the radio.

kcrudup said:
Get the app "Network" by Mangelow. It has a button to turn off just the radio.
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Click to collapse
tested, works

thank you for all who helped.

drmacinyasha said:
Nope, there's no real way to do it. You bought a phone, not an iPod. Live with Airplane mode or get service.
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Click to collapse
Lol thank you for you useless and helpless post. I suggest if u don't have anything to contribute just read and stay off the thread?

kcrudup said:
Get the app "Network" by Mangelow. It has a button to turn off just the radio.
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Click to collapse
I was looking for something like this too. In an area with very little signal, having the radio on is just annoying because it never gets signal, so it drains battery forever, even more because it is constantly scanning. This is perfect for that.
Now if someone could make a widget for this switch...

How does the battery drain? If sprint disconnected your phone it won't keep searching for a network. I have my old phone that laid for over 5 days without charge when I hot my evo... that was both the moment and intercept
Sent from my PC36100 using Tapatalk

bgchz said:
How does the battery drain? If sprint disconnected your phone it won't keep searching for a network. I have my old phone that laid for over 5 days without charge when I hot my evo... that was both the moment and intercept
Sent from my PC36100 using Tapatalk
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Click to collapse
It will still actually be connected to the network, you just wont be able to make calls or get texts. This is required for all cell phones, so you can still call 911, or call the carrier to re-activate the phone if you ever want to.

GPRS/3G issue on Optimus 7

Well here's the thing. Around my house, my provider has excellent 3G coverage, but inside my house its not so good. I get full 5 bars of "H" at about 200 meters from my house but only 2-3 when inside my house. Its OK by me. The thing is that when i come home from outside the data coverage is H with 2-3 bars. If I am at home and turn off/on the 3G option on my phone it just goes to GPRS with full 5 bars signal and never on 3G/H. I would prefer the H than the GPRS. Is there any way to have it lock into H and not on GPRS? Maybe a registry tweak?
Thanks in advance.

I have had this issue for a while, and I still don't have any way to force it, but if you find a way I'd be interested.
The only trick I found is not to turn off the 3g but to hit "tap to select" on the Network Selection option, and then selecting my provider again.
In the states AT&T has two selections AT&T and AT&T DR. Not sure what DR stands for but usually toggling between the two will get by back to H. That or sometimes just powering off the device.

Kr3i0s said:
Hey guys found the solution to lock the wp7 to 3G/HSPA only network.
1. Press ##3282# and it will open the field test screen.
2. Select settings at the bottom of the screen.
3. Select 3G Network only option.
The phone will be locked to 3G networks only even if the signal is very low.
Tested on HTC 7 Pro. Working like a charm.
Hope it helps.
Click to expand...
Click to collapse
Worked for me. Select the HSDPA module at the bottom, press the 3 dots, settings, 3g only. Many thanks to Kr3i0s

tsabasid said:
Worked for me. Select the HSDPA module at the bottom, press the 3 dots, settings, 3g only. Many thanks to Kr3i0s
Click to expand...
Click to collapse
Thanks for the head's up, so far so good.

Eυχαριστούμε! Τhanks!

So.... Two minor issues with the work around.
Went to my friends house, an area I know I always have a bad connection. There was no 3g signal so it basically was stuck on no signal the whole day.
Also, went into battery save mode which auto-disables 3g, and it do go to 2g connection. When charging the battery back up it was still on 2g, had to toggle the cellular connection again to find 3g, but seems to be staying at 3g for now.

I'm having issues too
I'm also having issues in Italy, with Vodafone operator. I've posted a video to youtube that shows very well my problem. Please watch it and tell me if you have the same issue (endless switching between 3G and H having very unstable data communications). I'm thinkinh about returning back to repair for the second time...

While I can't read much of what you wrote, I can tell you for a fact that Battery Saver mode does that to my phone. ...
The fix posted above works, until battery saver kicks in, then all is lost.
Aside from that, I just know I'm in a bad area sometimes so it will switch, but for the most part I only have that issue when I turn on battery saver.

Etaduck said:
Also, went into battery save mode which auto-disables 3g, and it do go to 2g connection. When charging the battery back up it was still on 2g, had to toggle the cellular connection again to find 3g, but seems to be staying at 3g for now.
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Click to collapse
Is that actually supposed to happen? I haven't read anywhere that battery saver turns 3G off. That's not my case, at least.

In the video I had battery saver on, it's true. But the same happens normally even when battery saver is off.

aptcore said:
Is that actually supposed to happen? I haven't read anywhere that battery saver turns 3G off. That's not my case, at least.
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Click to collapse
You know, that was an option pre-mango in the battery saver menu.... I guess I haven't checked it in a while. That or I'm just losing my mind, which is entirly possible.
That said, I have found my setting that the earlier post randomly turns to "2g only" usually after battery saver is turned on, but it seems to be triggered at random. Not sure if there is a regedit that I can do to stop that, but for now I just go into the menu and change it.