Hey, guys, I was wondering if there’s a way to “dynamically” switch between 2G and 3G. I explain myself: when the phone’s screen is off, it switches to 2G with CPU tuner, in order to save some battery. When it goes back on, it switches to 3G so I won’t die waiting for the data to be downloaded.
The problem is that this process takes some time, it isn’t automatic, sometimes it’s fast and sometimes it’s not. And I wanted to know if there’s a way to switch to 3G with no need to turn the connection off and turning it on again.
sorry, you might wait
you might wait, because the system need to be disconnected of the network and reconnect
Lol its either one or the other bro. The switch takes some time.
Sent from my Super Galaxy Ace using XDA.
alexnm said:
The problem is that this process takes some time, it isn’t automatic, sometimes it’s fast and sometimes it’s not. And I wanted to know if there’s a way to switch to 3G with no need to turn the connection off and turning it on again.
Click to expand...
Click to collapse
There may be a way to speed up the computational process, fractionally, but the overall speed of change is bound by the pure physics of a connection registering with the variable factor of signal strength.
I find that 2G is more than quick enough to do most of the things I ask of it (have you given it a fair shot?), and the things I need 3G for (d.loading updates/watching videos etc) take a few processes to get to, by which time 3G has loaded up already.
Aw, man, that sucks... I'll stick with slow 2G. If only we had EDGE coverage where I live.
Thank you guys, anyway
Yeah it's a shame that it takes a few moments! It must be because it uses the same component in the handset, whereas does Wifi use a different part of the handset?
Sent from my GT-S5830 using XDA App
Related
guys, I've been struggling with you all that my SGS2 is jumping from 3G <-> H <-> H+ and I don't know if it costs extra battery, but I'm kinda tired with the 1-2 seconds lag whenever I wanna use the data (like browsing).
I would like to know if there's a way to use ONLY HSPA but not the 3G? I know there is a way to disable HSPA leave only 3G, but I want it vice versa, at the end of the day it's an expensive device and I want to use fast connection on it. my old HTC Desire stayed connected to H at all time and I felt good about it.
well, any idea?
If I'm not wrong, I think it's a good thing that it keeps switching between HSPA and 3G. If it needs to download/upload large amount is data, it'll use HSPA and it'll switch back to 3G for normal usage which I think save battery in long term.
Sent from my GT-I9100 using XDA App
WCDMA
Have you tried using WCDMA only mode? This still lags?
For your question, dial *#301279#, change HSPA revision and release 5(HSDPA only). To return to previous setting, release 6.
HSDPA drains the battery a lot. 3g helps when in standby.
washburn111 said:
HSDPA drains the battery a lot. 3g helps when in standby.
Click to expand...
Click to collapse
This is what I believe as well. The phone should switch to 3G when sleeping / stand-by to save battery... but for some reason, each time I wake my phone up, I can see 'H' on the Data Connection instead of '3G'. If I unlock my screen and wait 5-10 secs, Data then switches to 3G. But if I lock it and unlock again, it's back to 'H'. This has been draining my battery more than when I have WiFi connected.
I've searched for this issue on google, this whole forum but just can't find a post discussing about this issue. Maybe I didn't use the right keywords... I've been searching: "samsung galaxy s2 sleep 3g hsdpa" , something along those lines. Of course I tried combinations like just sleep 3g or sleep hsdpa etc.
If there is a discussion regarding this, could you point me to it please or suggest keywords to search for.
Fast Dormancy
ShadowFlare said:
This is what I believe as well. The phone should switch to 3G when sleeping / stand-by to save battery... but for some reason, each time I wake my phone up, I can see 'H' on the Data Connection instead of '3G'. If I unlock my screen and wait 5-10 secs, Data then switches to 3G. But if I lock it and unlock again, it's back to 'H'. This has been draining my battery more than when I have WiFi connected.
I've searched for this issue on google, this whole forum but just can't find a post discussing about this issue. Maybe I didn't use the right keywords... I've been searching: "samsung galaxy s2 sleep 3g hsdpa" , something along those lines. Of course I tried combinations like just sleep 3g or sleep hsdpa etc.
If there is a discussion regarding this, could you point me to it please or suggest keywords to search for.
Click to expand...
Click to collapse
Are you talking about fast dormancy?
When Hspa is turned on when you unlock your phone, maybe there is an app or a widget that calls out for an internet connection? Those widgets that refresh in a couple of minutes maybe? Because in my experience H is only called when data is needed.
I'm aware of Fast Dormancy and the way it works, but definitely not what causing it to stay idle in H mode. I've switched it off before and still the phone wakes up to H signal.
One app I know to use the Data connection every hour is Beautiful Weather widget. I've disabled refresh-on-wake so it will only update hourly.
Im so pissed off at this phone. Supposed to be fast but my browsing experience sucks because of this delay between 3g/h+
Before I get flaimed I have read before, I tried fast dormancy off, I tried disabling H+ and putting 3g only but the same delay exists. I also tried putting the phone in wcdma mode so edge gets removed.
I don't know what to do, I came from an iphone 4 and although the pages load slower because of hardware I could actually see the data progress going and loading up, here my sgs2 just stands for 10 seconds doing nothing and then loads up the page fairly quick.
Sometimes it doesn't even load and says page could not be loaded even though I have the h+ icon on.
Now If anyone experiences this and has some sort of fix plz let me know.
Im running westcrip 9.6 with lph, and have had this issue in previous roms too.
My network is Claro Dominican republic
Thanks
I have a similar problem! In my case the phone suddenly switches from H to 3G, I don't know why, and then goes back to H. This happens while I'm using browser, generally when I activate data connection and I don't use anything, it remains on 3G
My problem is that sometimes the delay may be 2 seconds and its managable but then it can go up to 15 or not do anything at all.
Same problem, I thought it's ok, but if it's not, then how to manage your data, without any delays?
just in case for someone who might know how to fix your problem u should give them/us information about:
your rom
your kernel
your modem
rooted or not
ps. wrong section btw...
warrez said:
just in case for someone who might know how to fix your problem u should give them/us information about:
your rom
your kernel
your modem
rooted or not
ps. wrong section btw...
Click to expand...
Click to collapse
carrier and location (country) would be good too.
EDIT: whoops, saw it's in the first post. Sorry.
Its normal to go from G to H+ when data is in use. As soon as the phone detects that it needs to access the network, it will achieve the H+ connection. Apparently it will kill the battery if its always on H+. This, I understand. But the part I do not understand is the delay from G to H+. I am not sure if its a carrier issue for most of us, or the phone itself. I am assuming its a carrier issue though as it has happened on every ROM or Modem I have tried from personal experience. Not sure about the OP. It does seem to take some time at times to get from G to H+ - upwards of 15 seconds or more. Also, if it can't get H+, it will not browse at all on 3G
blue265 said:
Its normal to go from G to H+ when data is in use. As soon as the phone detects that it needs to access the network, it will achieve the H+ connection. Apparently it will kill the battery if its always on H+. This, I understand. But the part I do not understand is the delay from G to H+. I am not sure if its a carrier issue for most of us, or the phone itself. I am assuming its a carrier issue though as it has happened on every ROM or Modem I have tried from personal experience. Not sure about the OP. It does seem to take some time at times to get from G to H+ - upwards of 15 seconds or more. Also, if it can't get H+, it will not browse at all on 3G
Click to expand...
Click to collapse
I get the same issue with the 3G. It won't load anything on 3G connection but as soon as it switches to H or H+ it starts to load.
imlgl said:
I get the same issue with the 3G. It won't load anything on 3G connection but as soon as it switches to H or H+ it starts to load.
Click to expand...
Click to collapse
Yep, same problem in Moscow. It's probably related to device, nor to carrier. Kinda odd.
imlgl said:
I get the same issue with the 3G. It won't load anything on 3G connection but as soon as it switches to H or H+ it starts to load.
Click to expand...
Click to collapse
+1 for that..hate that...
So i guess there is no fix for this
Sent from my GT-I9100 using xda premium
mcvigo said:
So i guess there is no fix for this
Sent from my GT-I9100 using xda premium
Click to expand...
Click to collapse
I don't think so. Seems to be a device issue. I just took a look at my Blackberry Bold 9900 I use for work and it always has H+. It doesn't go to 3G and then to H+ like the SGS2 does. And when I browse on that, its always ready to go, no delay. Not sure why our SGS2 needs to handshake H+ everytime
In my case it seems to depend upon the modem I use. kL1 works really well, however when I trialed ICS it was really slow as described.
Also, far less related, as for the mention of browsing, I use Dolphin and find that it seems to be much slower at either DNS lookups or redirects or something.
It's most likely because of your carriers settings. There's nothing you can do unless you call them questions about what their policy is at their end on data connectivity.
Ever since I've transferred to AT&T I've had laggy data issues. I finally rooted/flashed to AOKP, and while trying to address the issues of no APNs appearing or saving and no signal status in the status bar, I've come to find both AT&T and T-Mobile as Available Networks under some network setting. Am I chasing ghosts here, or is there something actually up?
EDIT: So I really need help troubleshooting the issue. I'll logcat, dump, or whatever necessary. I've been in many cities/areas and this problem persists: if I haven't used data or the phone hasn't been backgrounding traffic, it'll take anywhere from 5 to 30 seconds before a connection is made when I try to access an internet-related function on my phone (even though 3G/H is displayed in the status bar). Out of shear frustration (this has been happening since I got the phone, under stock ROMs and now under AOKP), I tried messing with *#*#info#*#*. I changed WCDMA-preferred to WCDMA-only -- no improvement. Oddly, I also tried GSM-only. Well, great improvement! Even though I only have E, there is absolutely no latency in waiting for a connection -- so pages and other data end up loading faster on Edge than 3G !
I have absolutely no idea why my phone takes forever to make a connection. Under 3G, I see only but a few upstream network activity blips (even under full bars) for as much as 30 seconds, before there is any downstream activity (and when it comes, it comes). Can anyone help???
P.S.: I'm going to try using a friend's SIM later for comparison.
joebobjoe said:
Ever since I've transferred to AT&T I've had laggy data issues. I finally rooted/flashed to AOKP, and while trying to address the issues of no APNs appearing or saving and no signal status in the status bar, I've come to find both AT&T and T-Mobile as Available Networks under some network setting. Am I chasing ghosts here, or is there something actually up?
Click to expand...
Click to collapse
Because they both share the 1900MHz band I believe.
Red5 said:
Because they both share the 1900MHz band I believe.
Click to expand...
Click to collapse
I'd like to know if it shows up for anyone else?
joebobjoe said:
I'd like to know if it shows up for anyone else?
Click to expand...
Click to collapse
On AOKP it does for me too. Just ignore it.
Red5 said:
On AOKP it does for me too. Just ignore it.
Click to expand...
Click to collapse
An aside: does your phone stay on 3G and switch to H only under moderate network traffic?
joebobjoe said:
An aside: does your phone stay on 3G and switch to H only under moderate network traffic?
Click to expand...
Click to collapse
The phone displays 3G because thats what it is... then when data is being processed, it shows H because its using the "what AT&T calls 4G but its really HSPA" side of the network. For just standby time with no data, its going to show 3G because HSDPA is traffic, not standby.
Red5 said:
The phone displays 3G because thats what it is... then when data is being processed, it shows H because its using the "what AT&T calls 4G but its really HSPA" side of the network. For just standby time with no data, its going to show 3G because HSDPA is traffic, not standby.
Click to expand...
Click to collapse
Well that's strange. I'm used to phones displaying what network-level they are capable of. So why would it not just display H for HSPA+ when HSPA+ service is available, instead of only displaying under traffic.
I'm going to go ahead an edit this thread to help troubleshoot what I think to be the main issue.
After some trials I see that the network indicator switches back and forth between 3G and H a few tines before making the connection and transmitting data. Hmmm...
Basically, "4G" will eat your battery alive so the phone idles at 3G and jumps to H+ only when you use data. If you were on a "stock" ATT rom it would always read H+, but this is technically false since when its idle the phone sits in 3G. CM9 and AOKP accurately display it which is why you see the switch.
Sent from my SGH-I777 using Tapatalk
I have a HTC Amaze for a phone and the Galaxy S2 is my media player. Sometimes, when I don't feel like carrying around two devices, I put my T-Mobile SIM in the galaxy and use it as my phone. I must say, Edge is not as slow as I remember it being. Maybe speed is contingent on network traffic. If thats the case, instead of using crowded "faux G" networks, I may defer to Edge to save battery life and get good dl/ul rates.
My phone does the same thing. I noticed it sometime ago. When idle 3g. Internet I get H+. This is with both Shostock2 and Phone Bricker. I was curious to know too but just blew it off because it really doesnt make any difference to me as long as Im getting decent speeds. Im not even with ATT anymore. Went with Straight Talk. Which uses ATT towers. Cant beat the price!!
They don't have the correct apns, but that symbol problem is because the phone doesn't use hspa+ passively, only actively. It causes some lag when downloading, but it is faster fit large data. But your problem is due to a supposed imei range with bad modems. Rehash stick, fix the triangle, and return it.
Sent from my GT-I777 using xda premium
I am using an unlocked ATT atrix in India. I own it for the past 6 months. I am very happy with the smartness of the phone. I want any person who knows about the phone or owns to phone to help me answer the following questions
I am using Tata Docomo and sometimes when there is low network in a place what happens is that my phone initially shows only one or two bars and then suddenly my phone has full signal and the Docomo logo is now visible on the notification bar. ( earlier it used to show roaming as well , i guess that was because i switched off roaming data) . I keep data on 24/7. Why does this happen. I dont have any complains reg this issue its just that i want to know whether this is my phones cool feature or docomo's cool feature.
I keep my phone on max battery saver( phone's stock battery saver feature) so i guess it shuts down data while i am sleeping. But the problem is that when i get up the Edge symbol (E) vanishes and earlier i used to restart the phone to make it come back and booting takes a lot of time. but now i found out the easy way to make it come back. by going to the mobile network setting it automatically comes back. But the problem is that when dont use my phone for just an hour the Edge symbol stays but the double sided arrows goes off and i dont know how to make it come back instantly. it comes but it takes its own sweet time.
this problem is really irritating, when i go to places where there is poor network and my phones cool feature doesnt activate ( the first point) then what happens is that my Edge goes off ( i guess it goes to save battery due to poor reception) but when i come back to a place with good network the Edge fails to come back. HOW DO I MAKE IT COME BACK without me restarting my phone.
Do help
aka007 said:
I am using an unlocked ATT atrix in India. I own it for the past 6 months. I am very happy with the smartness of the phone. I want any person who knows about the phone or owns to phone to help me answer the following questions
I am using Tata Docomo and sometimes when there is low network in a place what happens is that my phone initially shows only one or two bars and then suddenly my phone has full signal and the Docomo logo is now visible on the notification bar. ( earlier it used to show roaming as well , i guess that was because i switched off roaming data) . I keep data on 24/7. Why does this happen. I dont have any complains reg this issue its just that i want to know whether this is my phones cool feature or docomo's cool feature.
I keep my phone on max battery saver( phone's stock battery saver feature) so i guess it shuts down data while i am sleeping. But the problem is that when i get up the Edge symbol (E) vanishes and earlier i used to restart the phone to make it come back and booting takes a lot of time. but now i found out the easy way to make it come back. by going to the mobile network setting it automatically comes back. But the problem is that when dont use my phone for just an hour the Edge symbol stays but the double sided arrows goes off and i dont know how to make it come back instantly. it comes but it takes its own sweet time.
this problem is really irritating, when i go to places where there is poor network and my phones cool feature doesnt activate ( the first point) then what happens is that my Edge goes off ( i guess it goes to save battery due to poor reception) but when i come back to a place with good network the Edge fails to come back. HOW DO I MAKE IT COME BACK without me restarting my phone.
Do help
Click to expand...
Click to collapse
guys please help
Change the Battery Mode to PERFORMANCE MODE and Keep Background Data, Data Roaming and Data Enabled CHECKED.
In case E doesn't show arrows then no need to reboot the phone. You just Enable the Flight Mode first and then Disable it.
Hope it helps.
Sent from my MB860 using Tapatalk 2
So after the 3.16 update, I noticed my phone was not picking up 4G. After pulling my hair out to figure out why, I traced the problem to the Sprint Connection Optimizer being disabled. Turn it on, 4G toggles on with it, turn it off, 4G toggles off with it. The previous version of the Sprint Connection Optimizer did not do this. To confirm my suspicions I reset the phone to stock and observed the same behavior.
This is quite the pain in the ass as I don't want my phone connecting to WiFi networks that I marked "remember". In addition, I don't need my phone connecting to WiFi at work (which I use for work purposes under special circumstance).
My short term solution is to forget WiFi networks but this is rather tedious. With the Sprint Connection Optimizer toggled off, I am essentially locked out of 4G. I pay for Sprint's service and I insistent on using as much of their/my bandwidth as I chose.
Can anybody else confirm what is happening. My area has relatively strong 4G coverage, to the point where seeing 3G would be a rare occurrence. I need to make sure this isn't a problem on just my device before I roam my way out of my contract.
Super Tommy said:
So after the 3.16 update, I noticed my phone was not picking up 4G. After pulling my hair out to figure out why, I traced the problem to the Sprint Connection Optimizer being disabled. Turn it on, 4G toggles on with it, turn it off, 4G toggles off with it. The previous version of the Sprint Connection Optimizer did not do this. To confirm my suspicions I reset the phone to stock and observed the same behavior.
This is quite the pain in the ass as I don't want my phone connecting to WiFi networks that I marked "remember". In addition, I don't need my phone connecting to WiFi at work (which I use for work purposes under special circumstance).
My short term solution is to forget WiFi networks but this is rather tedious. With the Sprint Connection Optimizer toggled off, I am essentially locked out of 4G. I pay for Sprint's service and I insistent on using as much of their/my bandwidth as I chose.
Can anybody else confirm what is happening. My area has relatively strong 4G coverage, to the point where seeing 3G would be a rare occurrence. I need to make sure this isn't a problem on just my device before I roam my way out of my contract.
Click to expand...
Click to collapse
Why would you not want to connect to WiFi networks that you mark remember?....jw
If you have the option of your local WiFi versus 4G most times I'd expect someone to want to go with the WiFi... Only time you'd want to not is in places where 4G was better connection, which in those cases I wouldn't want to mark said WiFi networks as remember...
Ill try to mess with it here see how it effects my stuff as were rolling 4G a lot now...
Sent from my EVO using Tapatalk 2
In most cases work wifi won't let you watch porn at work man. Total pain in the a$$. We should be able to toggle our own connections. I will say wifi is better on battery and generally faster. However there's potential risk on wifi that someone could access your device. Extremely unlikely but a possibility none the less.
In my area we don't have lte yet and the other day after installing MeanBean I saw 4G pop up in signal bar then went away then came back. Haven't seen it since. I was so excited but I shouldn't get my hopes up. Sprints been saying 4G for a long time and still nothing. Only reason I stay is unlimited data and I live the HTC evo line.
You have a better chance of winning the lottery 5 times than someone accessing/ hacking your phone over wifi without you knowing about it.
Also there are great wifi apps that tells you who is on the network your on at all times.
#Root-Hack_Mod*Always=LTE
I have found that Comcast seems to throttle youtube traffic at certain times of the day, and I have a specific spot in my house where my wifi signal just completely drops (but still claims to be "connected.") I'm obviously going to want my phone to remember my home wifi connection, but I don't necessarily want to always be using it at home.
My situation may not be incredibly common, but it's a valid scenario where you may not necessarily want connection optimizer to run the show.
jesuspgt said:
I have found that Comcast seems to throttle youtube traffic at certain times of the day, and I have a specific spot in my house where my wifi signal just completely drops (but still claims to be "connected.") I'm obviously going to want my phone to remember my home wifi connection, but I don't necessarily want to always be using it at home.
My situation may not be incredibly common, but it's a valid scenario where you may not necessarily want connection optimizer to run the show.
Click to expand...
Click to collapse
The optimizer isn't your issue there though, as the mere fact of having the network remembered in the phone will cause it to connect to it whenever within range.... Its the fact you have a remembered WiFi network saved and you want to override that in a specific location when still in range of the WiFi... In that case the only solution is to toggle it off when you don't want to use it at that specific location in your house...
Optimizers doesn't just force you to connect to your local network that's remembered as the WiFi being on will do that itself already...
Sent from my EVO using Tapatalk 2
You can try disabling Sprint Connection Optimizer and try purchasing Juice Defender Ultimate. If you use its location service, it will only turn on wifi in places that you turn on the wifi antenna and remember them. And if it turns it on, you just manually turn it off until its trained.