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For those of you having battery issues I found a way to DRAMATICALLY improve the battery life.
I tried this and I have seen a huge improvement.
First things first, go into Settings> About Phone> Battery> Battery Use> Cell Standby. Assuming your phone has been on, or off the charger for ~10 minutes, it should show Time Without Signal at around 50%.
Next thing, press HOME, and bring up the dialer. Dial *#*#4636#*#* (Do not press "Call"). After a second, it should bring up the "Testing" menu.
Go into Phone Information, press MENU, and tap "select radio band." You should experience a Force Close, don't panic, this was supposed to happen. Scrolling down shows that the preferred network type is GSM auto (prl).
What this means is that even though you are connected to a CDMA network, your phone is trying to find a GSM network, preventing the radio from sleeping, and causing excessive battery drain.
Remedy this by tapping GSM auto (prl), and changing it to CDMA auto (prl).
Now your done, your TWS should drop dramatically, and you should experience much better battery life!
Note: You need to do this every time you reboot.
I wish there was a way to make an application to toggle this thing on and off so you don't have to do it every time you reboot the phone.
Going to try this for tomorrow and see how my battery life is. Seems silly that with all the customization HTC did to the OS they missed this detail.
seems weird; has anyone confirmed if this works?
-m
Just checked mine and it was already CDMA(auto).
btw for what it's worth, my EVO has been off the charger for ~2 hours, and the cell standby details just shows "time on: 2h 19m". Mine is also defaulting to 'CDMA auto (PRL)'
Perhaps a recentl prl update fixed this?
-m
Nice find though - the battery history tab (especially the all time tab) is awesome..
For instance, I've been seeing my GPS turn on and stay on while indoors.. according to these stats, the 'movies' app is the one that was using it the most..
-m
I found mine in CDMA already too
Mine was GSM my son's was on cdma, we both did the prl updates and both of us did the sd card update as well.
I guess some phones were on cdma by default some weren't.
Maybe thats why some people are calling other crazy for the battery drain.
thanks...interesting find...mine was on gsm. everytime i reboot?! damn.
Mine was set to CDMA with Cell standby of 48%.
mines was on gsm also..but i rebooted and it stood on cdma..it didnt default back
There is an app in the market called "network" that is basically a shortcut to this menu.
diomark said:
Nice find though - the battery history tab (especially the all time tab) is awesome..
For instance, I've been seeing my GPS turn on and stay on while indoors.. according to these stats, the 'movies' app is the one that was using it the most..
-m
Click to expand...
Click to collapse
You could just use spare parts from the market place it shows you all of that
Mine was on GSM. I'll see if my battery life is any better tomorrow.
Mine was set to GSM. The phone came from Google I/O so maybe that was a bit different? I'm excited to see how this improves it! If it does...good find! If not...still probably a good thing to change!
Thank you so much for this, it seemed to fix my sporadic signal issue!!!!
just changed mine to CDMA thanks
spurnout said:
Mine was set to GSM. The phone came from Google I/O so maybe that was a bit different? I'm excited to see how this improves it! If it does...good find! If not...still probably a good thing to change!
Click to expand...
Click to collapse
Mine was set to CDMA
Thanks for the tip...Mine was set to GSM.
Mine was already set to CDMA auto (prl). I saw another option was for CDMA only. I wonder if there would be any difference with that selected?
This is an issue that a lot of Hero users had. I was fortunate enough to not experience it with the Hero, but my current time without signal is 52% on my Epic. If I remember correctly, it was a PRL problem, but it might also be the radio. It would be the cause of serious battery issues. I've attempted updating my profile and PRL to no avail. Is anyone else having time without signal issues?
To check, go to settings -> about phone -> battery use -> cell standby.
Sent from my SPH-D700 using XDA App
I thought it was just a reporting issue
Sent from my SPH-D700 using XDA App
No. I remember what it was now. It was that the Hero wasn't set to use CDMA towers and was searching for GSM towers for some reason. Something to do with the fact that the Hero was originally a GSM phone, which would make sense here. Someone in the thread that was created just a bit ago suggested it had something to do with the PRL update, which is possible, because I did it and that's when I started getting bad battery life and a high percentage of time without signal.
I've been having a hell of a time with my data connection today, which would explain my poor battery.
I've got a very high time w/out signal as well... I'm surprised this hasnt gotten more attention. Its a huge battery drain.
...
I've got 50% time without signal on mine. It seems likely that the searching for GSM towers could be happening on this phone as well because of all the material that crossed over from the international versions. Is there a way to check and/or fix this problem and get the phone to only search for the CDMA towers?
Thanks,
-Rob
I've been trying to set the network mode to cdma auto using the network app i downloaded from the market. I dont think its fixing the issue though...
Strangely enough this is a similar issue I have seen with the Samsung Intercept. Especially having a hard time with keeping the data connection...
-CC
clockcycle said:
Strangely enough this is a similar issue I have seen with the Samsung Intercept. Especially having a hard time with keeping the data connection...
-CC
Click to expand...
Click to collapse
Haven't have this issue and I live in Puerto Rico. We have 5 carriers on this tiny island and Sprint is the only one with CDMA.
I think I figured it out. I set my network to cdma auto and my time without signal dropped to 3%. Battery drain seems improved in the short term...
Did you set yours up to WCDMA only? If I went WCDMA Preferred, I can see it was trying and failing to connect to GSM.
HeroHTC said:
Did you set yours up to WCDMA only? If I went WCDMA Preferred, I can see it was trying and failing to connect to GSM.
Click to expand...
Click to collapse
I set it to CDMA auto
I dont think WCDMA is available in the US.
...
Can you please elaborate a bit on how to change network preferences?
Thanks,
-Rob
TheRob44 said:
Can you please elaborate a bit on how to change network preferences?
Thanks,
-Rob
Click to expand...
Click to collapse
Go to the android market and search for an app called "Network"
Open up the app, you should see WCDMA Preferred in a drop down box near the bottom of the screen. Select that and change it to CDMA auto.
Exit the app.
Your Time without service should drop really low (mine went to 3%)
I've had the app behave strangely and revert my settings. I'm paranoid so i've been checking it pretty often. I'm not sure if there is a way to make this change permanent. I dont know if it reverts when the phone is rebooted.
The way that the problem was solved on the Hero was by accessing a system menu through a ##CODE## code and telling it to prefer CDMA towers. It was defaulted, for some, to GSM. Because I never had this issue, I don't know a whole lot about it. I know that ##CODE## codes are not available on this phone, though, so we might be out of luck until we can get into some kind of dev menu, I think. The app fix mentioned above sounds janky as hell to me, though, so I'll avoid it for now.
My phone has a hell of a time holding on to a data connection right now, but Juice Defender is really helping that not absolutely kill my battery. Aside from this one concern, my battery is actually lasting a surprisingly long time. I was expecting it to die nearly twice as fast as my Hero, but it is definitely giving it a run for its money. I'm very pleased with the Epic
...
I followed your directions. Got into Network, changed the dropdown box to CDMA Auto (PRL) and then hit the home button. Nothing changed, so I went back into the app to check if it stuck and it was back at WCDMA Preferred. Am I missing a step to make the change stick or something?
Thanks,
-Rob
TheRob44 said:
I followed your directions. Got into Network, changed the dropdown box to CDMA Auto (PRL) and then hit the home button. Nothing changed, so I went back into the app to check if it stuck and it was back at WCDMA Preferred. Am I missing a step to make the change stick or something?
Thanks,
-Rob
Click to expand...
Click to collapse
I just did it multiple times. =)
Mine is not sticking either...ah well..
Hero used to be
#*#*4636*#*#
I'm going to try the suggested fixes but we need a permanent solution. This drain is horrible, check out my battery usage from today in this pic. I really like this phone but I'm going to have to return it if this keeps up.
richse said:
I'm going to try the suggested fixes but we need a permanent solution. This drain is horrible, check out my battery usage from today in this pic. I really like this phone but I'm going to have to return it if this keeps up.
Click to expand...
Click to collapse
Yea, Thats what mine looked like until I fixed it with the Network app.
Yes, I have been playing lots of games/angry birds
I have been trying to use the Network app that people are suggesting but I am getting some weird issues. When I open the Network app it says I am on "WCDMA preferred" but then if I just let it sit for about 15-30 seconds it changes to "Unknown" without my pressing anything. I tried setting it to "CDMA only" and to "WCDMA only" but it doesn't save either setting. If I exit and reopen the program it goes back to "WCDMA preferred" and then changes itself to "Unknown" after a short duration. Anyone else have a problem like this? Any ideas?
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.
Click to expand...
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.
Click to expand...
Click to collapse
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.
Click to expand...
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.
Click to expand...
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]
Click to expand...
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).
Click to expand...
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.
This is a topic that hasn't been clearly covered so I'm posting it here.
The new update talks about new 4g scanning functionality. Has anyone had any time with this or any basis of comparison for 4g behavior before or after the update?
4g has to be one of my biggest gripes on this phone pre-update as it was the main reason why I bought it and it's connection strategy ends up using more battery than anything. Just wondering if this new "scanning" feature improves that at all or makes it worse.
Interested in this topic myself.
bump.. yeah I was wondering about this as well.
Initial observations:
When wimax radio is on a couple of scenarios happen.
- Wimax radio on but no 4g service = wimax state is changed to "disconnected" meaning it behaves the way it will when wifi is being used (it doesn't scan so it uses very little power and when in the disconnected state the dc connect errors don't flood logcat; dc connect errors are still present in this update). Before the update if the wimax radio is on it will constantly scan for service even when there is no service available and it will scan every x amount of seconds unless a wifi connection is present then the wimax state is disconnected if the wimax radio is on and a wifi connection is present.
- Wimax radio on, no wifi connection = wimax state will remain "disconnected" until the user taps "scan for service". If no service is found wimax state reverts to "disconnected" meaning the radio is on but not scanning (before the update the radio will constantly scan while it is on) as opposed to off and flooding logcat with dc connect errors in the background.
- Wimax radio on, no wifi connection, no service = notification saying "4g radio is on" (only saw this notification twice mainly because I didn't want to sit and watch my phone tell me the radio is on). Wimax state remains "disconnected" (not off) and will only scan when "tap to scan" is pressed.
What does this mean? Whether you have 4g service or not you're better off leaving the radio on as it will always revert to a disconnected state when no service is found during a scan. Leaving the radio on keeps the dc connect error flood from happening in the background which some people attributed to huge battery drain. As long as the wimax state is "disconnected" and you are not using a wifi connection it does not/will not scan until you tell it to. The constant scan every x amount of seconds when no service is found is what drained the battery for most users.
So what happens with the new update?
Sent from my HTC Evo using XDA App
He just told you in the post before yours.
I guess my new question is this:
Running the previous build, I would just leave 4g on so that I always had it if it was available. My office building has poor 4g signal penetration, so it cuts in and out frequently depending on where I walk. With the new update, if I walk into a portion of the office where my 4g drops, will it not pick back up automatically when I come back into a good service area? Am I going to have to manually tell it to "reconnect" by tapping the scan button every time I hit a dead pocket?
naorion said:
He just told you in the post before yours.
I guess my new question is this:
Running the previous build, I would just leave 4g on so that I always had it if it was available. My office building has poor 4g signal penetration, so it cuts in and out frequently depending on where I walk. With the new update, if I walk into a portion of the office where my 4g drops, will it not pick back up automatically when I come back into a good service area? Am I going to have to manually tell it to "reconnect" by tapping the scan button every time I hit a dead pocket?
Click to expand...
Click to collapse
That's what appears is the new behavior of the wimax radio. It's a two-fold scenario and I believe sprint did this more for customers convenience since people with evos would more than likely keep track of what parts of town has 4g service.
It saves battery somewhat but requires the user to have to scan/rescan for service. I never turned my wimax radio off anyways prior to this update and I only flashed the update last night to check if there were any changes that I was hoping for.
Anything positive you've seen from the update? Are you going to run the new method or revert back to the old? Have you seen any battery improvements as a result of this new method? - it sounds like battery is why they changed it.
This update is actually LESS convenient for me as I now have to manually connect every time I want to use 4g considering how spotty the service is even in my "launch market" of Dallas.
naorion said:
Anything positive you've seen from the update? Are you going to run the new method or revert back to the old? Have you seen any battery improvements as a result of this new method? - it sounds like battery is why they changed it.
This update is actually LESS convenient for me as I now have to manually connect every time I want to use 4g considering how spotty the service is even in my "launch market" of Dallas.
Click to expand...
Click to collapse
For the most part sa is blanketed with 4g service so I am like you in that I have to rescan when I move.
Time will tell for me. I plan on building a rom later tonight with the new update and testing the kernel. I use extended batteries (seidio and sprint) so I don't pay attention to battery life anymore. I'm more concerned with useable performance.
After I build the rom I plan on seeing if I can get the wimax radio to revert back to auto scan. Again time will tell.
Alright well thanks for all the info. I've got a seidio battery on the way, but the log file thing is what piqued my interest. I'm about to flash the rooted version of the stock rom and give it a go.
I just flashed the latest - Is there not a widget or shortcut I can put on my homescreen to initiate the scan?
naorion said:
I just flashed the latest - Is there not a widget or shortcut I can put on my homescreen to initiate the scan?
Click to expand...
Click to collapse
I didn't find a sense specific widget. I used lpp to make a homescreen shorty straight into the 4g settings window.
what is lpp?
Launcher pro plus. Or just the regular free launcher pro will do it for you too. That's just me. I always remove sense entirely whenever I tweak the rom and lpp is my home launcher replacement.
lovethyEVO said:
Initial observations:
When wimax radio is on a couple of scenarios happen.
- Wimax radio on but no 4g service = wimax state is changed to "disconnected" meaning it behaves the way it will when wifi is being used (it doesn't scan so it uses very little power and when in the disconnected state the dc connect errors don't flood logcat; dc connect errors are still present in this update). Before the update if the wimax radio is on it will constantly scan for service even when there is no service available and it will scan every x amount of seconds unless a wifi connection is present then the wimax state is disconnected if the wimax radio is on and a wifi connection is present.
- Wimax radio on, no wifi connection = wimax state will remain "disconnected" until the user taps "scan for service". If no service is found wimax state reverts to "disconnected" meaning the radio is on but not scanning (before the update the radio will constantly scan while it is on) as opposed to off and flooding logcat with dc connect errors in the background.
- Wimax radio on, no wifi connection, no service = notification saying "4g radio is on" (only saw this notification twice mainly because I didn't want to sit and watch my phone tell me the radio is on). Wimax state remains "disconnected" (not off) and will only scan when "tap to scan" is pressed.
What does this mean? Whether you have 4g service or not you're better off leaving the radio on as it will always revert to a disconnected state when no service is found during a scan. Leaving the radio on keeps the dc connect error flood from happening in the background which some people attributed to huge battery drain. As long as the wimax state is "disconnected" and you are not using a wifi connection it does not/will not scan until you tell it to. The constant scan every x amount of seconds when no service is found is what drained the battery for most users.
Click to expand...
Click to collapse
So what if you are in a good 4g area (also not using wifi) turn on the 4g then turn of the 4g does it go into the dc connect error flood? I rarely use my 4g but I avoid turning it on unless i plan to do a reboot to avoid batt drain issues. I am running myns rom so i havent tried to update anything since the latest update. Curious if the new update still forces a reboot after using 4g.
Stroid01 said:
So what if you are in a good 4g area (also not using wifi) turn on the 4g then turn of the 4g does it go into the dc connect error flood? I rarely use my 4g but I avoid turning it on unless i plan to do a reboot to avoid batt drain issues. I am running myns rom so i havent tried to update anything since the latest update. Curious if the new update still forces a reboot after using 4g.
Click to expand...
Click to collapse
I'm gonna sound like a douche but, the answer to your questions are in the text you quoted. Try rereading it as I broke it down about as straight forward as I could for everyone.
lovethyEVO said:
I'm gonna sound like a douche but, the answer to your questions are in the text you quoted. Try rereading it as I broke it down about as straight forward as I could for everyone.
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Yes you mentioned in the last paragraph about batt drain issues but I dont see how leaving 4g on solves this issue. Leaving 4g on all the time will probably drain more battery scanning for signal (when not available) and use more battery when using the 4g signal then when on 3g. I personally think if you use 4g after you are done with it turn it off reboot then go back to using your phone normally. Yes its a pain to reboot but imo you will get better battery life using this option then the options you are suggesting...thoughts?
Either way i tested it out for myself, i updated to latest radio and still getting the dc connect error flood. From my reading on this issue from other threads it seems this is an HTC code fix not an android fix...but that is speculation.
Source:
http://code.google.com/p/android/issues/detail?id=11008
Lastly I read your response several times..maybe its not as clear as you think it is. Glad you wasted time writing that response then simply answering the question. Dont assume people dont read and search the forum. So congrats on sounding like a douche..be better to discuss this issue then put your great reread comment up.
I walked into a room with no WiMAX signal, 3G kicked in and the notification "Tap to scan" showed up. However, I did not touch anything and after a few minutes, my phone was once again connected through 4G.
So it will actually re-scan and reconnect eventually, even if you don't manually tap to scan.
Stroid01 said:
Yes you mentioned in the last paragraph about batt drain issues but I dont see how leaving 4g on solves this issue. Leaving 4g on all the time will probably drain more battery scanning for signal (when not available) and use more battery when using the 4g signal then when on 3g. I personally think if you use 4g after you are done with it turn it off reboot then go back to using your phone normally. Yes its a pain to reboot but imo you will get better battery life using this option then the options you are suggesting...thoughts?
Either way i tested it out for myself, i updated to latest radio and still getting the dc connect error flood. From my reading on this issue from other threads it seems this is an HTC code fix not an android fix...but that is speculation.
Source:
http://code.google.com/p/android/issues/detail?id=11008
Lastly I read your response several times..maybe its not as clear as you think it is. Glad you wasted time writing that response then simply answering the question. Dont assume people dont read and search the forum. So congrats on sounding like a douche..be better to discuss this issue then put your great reread comment up.
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Click to collapse
You need to read better then. I distinctly said the dc connect errors were still present in the new update.
I distinctly said the wimax state is changed to disconnected when there is no service. I also explained what happens when the wimax state is disconnected.
BUT, since you seem to be adamant that you did in fact read what I posted I will spoon feed the info to you.
When the wimax state is "disconnected" it does not do anything, it does not scan and the radio itself is not off. It is in a "sleep" state.
I said the dc connect errors were still present in this update and I explained that leaving the 4g radio on will revert to a "disconnected" state when there is no service available. Since it doesn't scan in the "disconnected" state it is not using battery. Because of this, the radio is not off and does not flood the background with dc connect errors. In the "disconnected" state the radio does not scan for service and the impact on battery drain is minimal.
Now, if that isn't clear for you then nothing will be. I invite you to search my original unedited text again and show me that I did not SPECIFICALLY state that the dc connect errors are still present in this update. When you find it you will know that it is you who has not read the text properly, not me.
zeuzinn said:
I walked into a room with no WiMAX signal, 3G kicked in and the notification "Tap to scan" showed up. However, I did not touch anything and after a few minutes, my phone was once again connected through 4G.
So it will actually re-scan and reconnect eventually, even if you don't manually tap to scan.
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Click to collapse
I will test this later today if I can. Like I said earlier in this thread sa is blanketed for most part with wimax service so I will have to force this scenario but it's great that it rescans for you.
lovethyEVO said:
You need to read better then. I distinctly said the dc connect errors were still present in the new update.
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Yeah I know and I said i see you mentioned that in my previous post
lovethyEVO said:
distinctly said the wimax state is changed to disconnected when there is no service. I also explained what happens when the wimax state is disconnected.
BUT, since you seem to be adamant that you did in fact read what I posted I will spoon feed the info to you.
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Click to collapse
I didnt ask you to spoon feed **** i asked for thoughts on my comment
lovethyEVO said:
When the wimax state is "disconnected" it does not do anything, it does not scan and the radio itself is not off. It is in a "sleep" state.
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this is the part I dont necessarily agree with as ive seen my phone scan when no service is available (otherwise how would it automatically lock back onto 4g) but as the next post said his 4g kicked back in so does mine leading me to think what you are saying isnt correct about it not scanning and draining battery, i could be wrong but i will look into that as well
lovethyEVO said:
I said the dc connect errors were still present in this update and I explained that leaving the 4g radio on will revert to a "disconnected" state when there is no service available. Since it doesn't scan in the "disconnected" state it is not using battery. Because of this, the radio is not off and does not flood the background with dc connect errors. In the "disconnected" state the radio does not scan for service and the impact on battery drain is minimal.
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Click to collapse
Doesnt add up, if the 4g reconnects automatically has to scan to reconnect to 4g not going to magically know that 4g service is available again
lovethyEVO said:
Now, if that isn't clear for you then nothing will be. I invite you to search my original unedited text again and show me that I did not SPECIFICALLY state that the dc connect errors are still present in this update. When you find it you will know that it is you who has not read the text properly, not me.
Click to expand...
Click to collapse
Funny you say search your text again when apparantly you didnt read what i said in my last post saying that you mentioned the batt drain issue (referring to the dc connect errors) never said you didnt speciffically state that, geez dude relax and realize I am trying to troubleshoot the situation as well
Well Ive switched several different ROMs, radios, and kernels so far, and I'm still getting poor reception issues. I've noticed when I push a button to turn the screen on from sleep mode it will say 'no signal' real quick then it goes away. But Ive also noticed that sometimes even with 'no signal' I can still make & receive calls but not other times So far this is the last issue I need to figure out with android for my hd2, I cant afford to be missing calls. Ive checked the battery usage info, and cell standby says my time without signal is usually between 50 and 75% help please
lowrider262 said:
Well Ive switched several different ROMs, radios, and kernels so far, and I'm still getting poor reception issues. I've noticed when I push a button to turn the screen on from sleep mode it will say 'no signal' real quick then it goes away. But Ive also noticed that sometimes even with 'no signal' I can still make & receive calls but not other times So far this is the last issue I need to figure out with android for my hd2, I cant afford to be missing calls. Ive checked the battery usage info, and cell standby says my time without signal is usually between 50 and 75% help please
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There is a 13 page thread on this with so far new resolution the only sure fire fix right now is leave the phone in 2G or Edge and you will stay continually connected, not a great fix but it keeps the phone locked onto the network
TheCoutures said:
There is a 13 page thread on this with so far new resolution the only sure fire fix right now is leave the phone in 2G or Edge and you will stay continually connected, not a great fix but it keeps the phone locked onto the network
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Is this really still a problem?
0vermind said:
Is this really still a problem?
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Yes and so far no fix
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