Related
Does anyone know for sure if the signal strength issue is due to the radio in the phone or an overcrowded network?
well they definitely have an overcrowded network, but having no service in an area that gets 4+ bars with an OG evo definitely isn't right. that as well as garbage data speeds (40-50 kbps down and 5 or less kbps up)
Flash the old (pre release) radio and see what you get. I get the same signal strength on the meter but I get much more solid connection and far better data speeds and haven't had a dropped call since...I've flashed back and forth testing between this radio, stock radio and the newest update radio...the newest having the lowest data speeds and weakest meter and the most roaming...stock being, well bad (but not as bad as the update) and the pre-release radio being, well, actually pretty awesome except for the weak meter...
...after seeing that I have faith that they can, in fact, issue an update to remedy the problem.
edit: by better data speeds I mean WAY better.... stock radio 200-600kbps with moderate signal strength....updated radio 100-250kbps (if that)....pre-release radio 800-1400kbps...and in a full-bars situation today I saw 2500kbps! YMMV, report any results in the radio thread in dev section
signal strength is based on physical distance or interference, like buildings and trees, not amount of people on the network
Spyderekz said:
signal strength is based on physical distance or interference, like buildings and trees
Click to expand...
Click to collapse
Or things like wind, bad moods or frustration if we're talking 4G
daneurysm said:
Flash the old (pre release) radio and see what you get.
Click to expand...
Click to collapse
So how exactly do you do this? I'm about to flush this phone down the toilet and sign up with Verizon. I already dropped my overdrive for a Verizon 4g mifi and the difference in speed is unbelievable. I'll gladly pay more for Verizon if I can get a reliable and fast data connection.
Maybe the radio flash thing works. Tried searching the eve 3d forum but nothing comes up... Any help appreciated to save me some ETFs.
ssbmg said:
So how exactly do you do this? I'm about to flush this phone down the toilet and sign up with Verizon. I already dropped my overdrive for a Verizon 4g mifi and the difference in speed is unbelievable. I'll gladly pay more for Verizon if I can get a reliable and fast data connection.
Maybe the radio flash thing works. Tried searching the eve 3d forum but nothing comes up... Any help appreciated to save me some ETFs.
Click to expand...
Click to collapse
There's a thread in the cdma development that has all the radio's and instructions how to flash, if that's what your looking for.
phatmanxxl said:
There's a thread in the cdma development that has all the radio's and instructions how to flash, if that's what your looking for.
Click to expand...
Click to collapse
Yup. This. Evo3D Dev forum, search for the Radio thread and follow the instruction...make sure to use the first radio on the list...before stock...there is no 4G for that revision, only 3G....meter didn't change by my signal stability and speed change drastically. YMMV, but hope it helps you.
Best of luck but screw loyalty...use what works best for you.
I know radios help with battery life, who's getting what battery life?
And does it seem to take forever to chargeor is it just me?
Sent from my PG86100 using XDA Premium App
mikel719 said:
I know radios help with battery life, who's getting what battery life?
And does it seem to take forever to chargeor is it just me?
Sent from my PG86100 using XDA Premium App
Click to expand...
Click to collapse
The battery at work is great home no so good on 3g but greaf on wifi, are you using stock charger the came with the phone? I was using a samsung charger since the cable is larger but will take forever, from the day on i use the htc charger and it charges quick unless im using it of course, usually 2 hours or so to full charged from almost dead and 50% + in an hour, it does take a while to charged from 99 to 100 tho
If you don't have an Evo3d well you don't have an Evo3d
jgalan14 said:
The battery at work is great home no so good on 3g but greaf on wifi, are you using stock charger the came with the phone? I was using a samsung charger since the cable is larger but will take forever, from the day on i use the htc charger and it charges quick unless im using it of course, usually 2 hours or so to full charged from almost dead and 50% + in an hour, it does take a while to charged from 99 to 100 tho
If you don't have an Evo3d well you don't have an Evo3d
Click to expand...
Click to collapse
I've been using the stock charger. 3 hours to charge to full from almost dead
Sent from my PG86100 using XDA Premium App
mikel719 said:
I've been using the stock charger. 3 hours to charge to full from almost dead
Sent from my PG86100 using XDA Premium App
Click to expand...
Click to collapse
Maybe just give it a few more days but that's not too bad, hate it my nexus s charging took forever
If you don't have an Evo3d well you don't have an Evo3d
jgalan14 said:
Maybe just give it a few more days but that's not too bad, hate it my nexus s charging took forever
If you don't have an Evo3d well you don't have an Evo3d
Click to expand...
Click to collapse
I just got the phone yesterday so if it dont improvewith at least 10days of testing some more kernels I'm going back to stock kernel till something better comes out. I think I'm just sad because I had a sedio 3500 with my og evo.
Sent from my PG86100 using XDA Premium App
mikel719 said:
I just got the phone yesterday so if it dont improvewith at least 10days of testing some more kernels I'm going back to stock kernel till something better comes out. I think I'm just sad because I had a sedio 3500 with my og evo.
Sent from my PG86100 using XDA Premium App
Click to expand...
Click to collapse
I feel ya man I did too but hate the new seido that came out for the evo 3d it looks akward
If you don't have an Evo3d well you don't have an Evo3d
Guys, try the 00001 PRL hack before you give up on the phone. I was having the same signal issues until I did the prl hack, I'm getting excellent signal strength. Now it does mean that you're in data-roaming mode all the time but it's worth it to me.......and no change in battery usage.
Yeah, worth it until Sprint kicks you off of their network forever you mean?
Sent from my HTC Evo 3D.
Until we get an update to the radio to improve the 3G signal, I'm keeping with the prl hack.
using Verizon prl can and will get you the boot by Sprint.
Let him find out the hard way. He's well aware of the consequences of excessive roaming. He's been warned.
My advice is to not use the Verizon prl unless you really need to. But switch back to the Sprint prl right away once you're done using data services that actually works (Verizon's). Since it's very easy to change your prl and only requires a reboot to take effect, this is what I do when I'm out in a bad coverage area and need to access the internet when I have little or no Sprint data services. Do yourself a favor and be smart about it and not abuse the prl hack.
Back on topic, I also have poor signal and 3G data since switching to the EVO 3D. It's beyond unacceptable and my original EVO 4G got a much better signal here at my home than this new EVO 3D. Still considering returning my 3D and waiting for either a radio update or a better phone. This is VERY aggravating!
ycats said:
Guys, try the 00001 PRL hack before you give up on the phone. I was having the same signal issues until I did the prl hack, I'm getting excellent signal strength. Now it does mean that you're in data-roaming mode all the time but it's worth it to me.......and no change in battery usage.
Click to expand...
Click to collapse
Will see you in the Verizon forums soon.
If you do, does it KILL your battery life?
I am currently using HSPA+ (not sure if that's 4G or 3.5G, but whatever)
On a full charge, I eeked out 13-14 hours with heavy usage during the day, with brightness on just under half (40-45%).
I am sick of loading times on facebook and even when browsing so I'm pondering enabling LTE.
I disabled LTE on the premise that it isn't good for battery life.
Thoughts?
It definitely won't help battery, but if you have strong LTE signal in your area it's not that bad. The drain is HORRIBLE however when you are getting less than two bars (roughly -98 dB or higher).
You should still be able to manager 11-12 hours HEAVY usage, with around 3-4 hours onscreen time with LTE.
It should be noted however that if you want to maximize battery life and use LTE, stick with gb and custom kernels that can undervolt. LTE and ics is a b**ch, it KILLS my battery
just my 2c
portable charger, extra battery...
why buy a super phone, and not use all its premium features??
If There's No LTE Yet..
So in my area of Long Island LTE is not running yet (probably not until late 2012) so will I get extra battery life by switching to using only GSM/HSPA?
That's on GB
Here in Bakersfield CA we are on hspa and i get about 7.5 down no lte though but i get about 15+ hours but i cant really use my ohone at work so thats why i get good battery life lol. I havent gone to L.A. To try out lte but im pretty happy with hspa. (i was a sprint user.... Sad)
Sent from my SAMSUNG-SGH-I717
docfreed said:
So in my area of Long Island LTE is not running yet (probably not until late 2012) so will I get extra battery life by switching to using only GSM/HSPA?
That's on GB
Click to expand...
Click to collapse
Absolutely, battery life will greatly increase
wase4711 said:
portable charger, extra battery...
why buy a super phone, and not use all its premium features??
Click to expand...
Click to collapse
...i agree. Plus, if someone is able to use LTE then that means he or shred is already paying for it. It's kind of stupid to pay for something you dont to use.
I simply wish I could turn off LTE when not needed and just use hspa+. It def drains the battery hardcore. I use wifi when at all possible.
Sent from my SAMSUNG-SGH-I717 using XDA
erick161 said:
I simply wish I could turn off LTE when not needed and just use hspa+. It def drains the battery hardcore. I use wifi when at all possible.
Sent from my SAMSUNG-SGH-I717 using XDA
Click to expand...
Click to collapse
Yeah if only it were possible...
-Once you go NOTE, you'd say 4 inches a Joke
SKyRocKeting727 said:
Yeah if only it were possible...
-Once you go NOTE, you'd say 4 inches a Joke
Click to expand...
Click to collapse
Well apparently if you flash certain roms they have that capability (the switch). IMO it should be integrated into the stock build
Sent from my SAMSUNG-SGH-I717 using XDA
I get it at work. After 12 hours my phone is down to 60-70% depending on how much I screw around at lunch. LTE isn't as bad a drain as people would have you believe. The screen will always be the selling point and the battery drain on this thing
Sent from my SAMSUNG-SGH-I717 using XDA
If you are stock, there isn't an option on whether or not to use LTE if it's available in your area. I live in the Washington, DC suburbs, and we have a very strong LTE network. I don't have the option to not use LTE ... it's in fact my only option. I am not used to this. With Sprint, I was able to turn off my 4G WiMax and use 3G. I wish I could do so with AT&T. It doesn't matter all that much. I don't notice significant battery drain and I use WiFi whenever I'm at home or whenever it's available on the go.
fbauto1 said:
...i agree. Plus, if someone is able to use LTE then that means he or shred is already paying for it. It's kind of stupid to pay for something you dont to use.
Click to expand...
Click to collapse
I live in Houston and have great LTE service, except in my house of course but I use my wifi instead. I never turn off my LTE nor do I want to, I went from an iphone with 3g to this and don't want to go back! When I purchased the phone I bought a spare battery/charger set before I left the store. Just looking at the screen, plus the LTE radio screemed battery eater. I was using Saurom with Juice Defender with a custom setup and set cpu to over/underclock and my battery life greatly increased. Now i'm back on DAGr8's alpha 2 ICS with the tablet mod and have not had enough "regular" use to see how the battery life is.
erick161 said:
Well apparently if you flash certain roms they have that capability (the switch). IMO it should be integrated into the stock build
Sent from my SAMSUNG-SGH-I717 using XDA
Click to expand...
Click to collapse
Agreed
Send from the Noteorious BIG 5.3" Bell Canada
Two things, LTE isnt a battery drain on AT&T because it isnt the same technology as used on CDMA (Verizon or Sprints' 4g network).
Cellular data however IS a battery drain when you dont have a strong signal.
If your scratching your head, here is the distinction. Lets say you dont have LTE in your area and your 3g signal is weak, THIS will drain the battery. If you DO have LTE but again the signal is weak, this will ALSO hurt your battery life.
The reason is, your phone will push more power to the antenna in order to get you enough signal to get a reasonably decent connection on the best available connection available.
LTE uses the SAME ANTENNA as the 3g antenna on GSM networks that use HSPA, THIS is 'the'e distinction between Sprint & Verizon CDMA networks which use a different antenna for their 3g and another antenna for their '4g', power has to be provided for BOTH antennas whereas GSM networks have ONE antenna.
If you are suspecting LTE is killing the battery, its either going to be a weak signal OR a rogue app (possibly using your cellular data connection). My suggestion is to start with looking at your signal strength, if it is relatively strong, you need to start looking at other potential battery drains. It isnt LTE.
Hope this helps.
Want to know more?
http://www.extremetech.com/mobile/110711-what-is-lte/1
Its a massive 7 page article explaining exactly what LTE is and how it works. If you want to jump ahead to the section dealing specifically with battery life, go to page 5 (change the '1' in the link I provided above to a '5').
littlewierdo said:
Two things, LTE isnt a battery drain on AT&T because it isnt the same technology as used on CDMA (Verizon or Sprints' 4g network).
Cellular data however IS a battery drain when you dont have a strong signal.
If your scratching your head, here is the distinction. Lets say you dont have LTE in your area and your 3g signal is weak, THIS will drain the battery. If you DO have LTE but again the signal is weak, this will ALSO hurt your battery life.
The reason is, your phone will push more power to the antenna in order to get you enough signal to get a reasonably decent connection on the best available connection available.
LTE uses the SAME ANTENNA as the 3g antenna on GSM networks (currently, LTE is only available on GSM), THIS is 'the'e distinction between Sprint & Verizon CDMA networks which use a different antenna for their 3g and another antenna for their '4g', power has to be provided for BOTH antennas whereas GSM networks have ONE antenna.
If you are suspecting LTE is killing the battery, its either going to be a weak signal OR a rogue app (possibly using your cellular data connection). My suggestion is to start with looking at your signal strength, if it is relatively strong, you need to start looking at other potential battery drains. It isnt LTE.
Hope this helps.
Want to know more?
http://www.extremetech.com/mobile/110711-what-is-lte/1
Its a massive 7 page article explaining exactly what LTE is and how it works. If you want to jump ahead to the section dealing specifically with battery life, go to page 5 (change the '1' in the link I provided above to a '5').
Click to expand...
Click to collapse
That's interesting, I've never read that before. However, if ATT uses the same antenna for 3g/4g/LTE, why does it matter what processor it uses?
ATTs HTC OneXL with the S4 supports LTE because the tegra3 does not, but if the same antenna is being used...why is this the case?
Sent from my SAMSUNG-SGH-I717 using XDA
erick161 said:
That's interesting, I've never read that before. However, if ATT uses the same antenna for 3g/4g/LTE, why does it matter what processor it uses?
ATTs HTC OneXL with the S4 supports LTE because the tegra3 does not, but if the same antenna is being used...why is this the case?
Sent from my SAMSUNG-SGH-I717 using XDA
Click to expand...
Click to collapse
Your statement (second paragraph) is not accurate. The S4 AND the Tegra 3 'can' use LTE (if the hardware - ie. antenna, exists). However, the Tegra 3 is not optimized for use with LTE. Right now, you will run into many issues with trying to use the Tegra 3 (primarily battery life issues and slow/sluggish performance over cellular data). It also costs more to build the Tegra 3 with this compatibility. OS updates are also a problem.
This person said it better than I could so I quote Draiko's entire post which answers your exact question (if you look at the very first post in the thread - link at the bottom, the same exact question you asked is there, this is a users response).
"The Tegras are not incompatible with LTE radios. They don't integrate the radios like the S4 does (yet) which makes a device with the Tegra 3 SoC and the separate 2G/3G/4G radios more expensive to build and maintenance (OS updates) trickier. The battery life also suffers a bit compared to an integrated solution and the main board is bigger.
nVidia bought Icera last year and they'll be integrating the Icera softmodem into future Tegras in order to better compete at the phone level (which will actually make the Tegra very versatile). They couldn't get Icera tech integrated fast enough for Tegra 3 (since the Tegra 3 was already sampling before they bought Icera).
The S4 has fewer faster CPU cores and integrated radios but a slower GPU. The Tegra 3 is a better non-phone solution which is more power efficient in a wifi-only loadout. Hardcore mobile gamers aside, most users won't notice a difference.
Bottom line: It's business, not a hardware limitation."
Source: (Post #3)
http://androidforums.com/motorola-photon-4g/531481-food-thought-quad-cores-lte.html
Anyone who has LTE care to compare?
Some say that the integrated LTE modem means that LTE won't drain your battery any more than 3G will. I highly, highly doubt it (just my guess).
Thanks
im not sure how clearly i can explain this so bare with me here and tell me if you have no idea what im talking about.
the 3g (cdma) and 4g (lte) radios are both built into the processor so right off the bat they use less power than usual but since there is no lte anywhere yet, no one can accurately say just how much it will use but from what i have been reading, people have been ball parking it and saying that it shouldn't use any more battery than the 3g. their reasoning behind this is the fact that the setting for 3g is tied to the lte so if you turn on the 3g radio your essentially turning on both at the same time and lte will connect and take over the 3g and switch to the lte network whenever possible. now you can set it to only use 3g when you turn on the 3g radio but then there is no other way to toggle lte. since i got my phone i have had it so that it turns them both on at the same time and since i have seen no severe drain i would have to say that if it was infact using the lte network that it wouldn't use anymore than the 3g would at any other time (if i had to guess)
to help explain what i am talking about with the settings, here is a few pics that should make it clearer.
https://www.box.com/s/4d3ae71dea2265ce859a
https://www.box.com/s/a2733587f93ceb8958d1
edit: so in short, no, it won't drain any more battery
That would be awesome. My Samsung Epic sucked the battery dry when 4G was turned on, so I never used it.
The goal with Sprint is to REPLACE 3G with 4G, and not just have it as a secondary like Wimax, or Verizon LTE is now. They are tuning is so much in battery efficiency so that it drains no more, if not less than 3G, since LTE can burst a dl quickly then go back into idle mode much more than 3G, when in use it should take less battery in theory.
Afteraffekt said:
The goal with Sprint is to REPLACE 3G with 4G, and not just have it as a secondary like Wimax, or Verizon LTE is now. They are tuning is so much in battery efficiency so that it drains no more, if not less than 3G, since LTE can burst a dl quickly then go back into idle mode much more than 3G, when in use it should take less battery in theory.
Click to expand...
Click to collapse
I understand the theory better now, but in practice, it seems that the AT&T version of the One X does drain more battery? Although you can not turn off LTE so I'm not sure how people are comparing it to HSPA+.
PhxkinMassacre said:
im not sure how clearly i can explain this so bare with me here and tell me if you have no idea what im talking about.
the 3g (cdma) and 4g (lte) radios are both built into the processor so right off the bat they use less power than usual but since there is no lte anywhere yet, no one can accurately say just how much it will use but from what i have been reading, people have been ball parking it and saying that it shouldn't use any more battery than the 3g. their reasoning behind this is the fact that the setting for 3g is tied to the lte so if you turn on the 3g radio your essentially turning on both at the same time and lte will connect and take over the 3g and switch to the lte network whenever possible. now you can set it to only use 3g when you turn on the 3g radio but then there is no other way to toggle lte. since i got my phone i have had it so that it turns them both on at the same time and since i have seen no severe drain i would have to say that if it was infact using the lte network that it wouldn't use anymore than the 3g would at any other time (if i had to guess)
to help explain what i am talking about with the settings, here is a few pics that should make it clearer.
https://www.box.com/s/4d3ae71dea2265ce859a
https://www.box.com/s/a2733587f93ceb8958d1
edit: so in short, no, it won't drain any more battery
Click to expand...
Click to collapse
I'm thinking the same way you are,no LTE here yet of course,but I do have it set to 3g,LTE mode not 3g only and have been getting excellent battery life.I'm assuming it must at least occasionally check for LTE coverage.
Of course, no actual LTE yet. But I have run full days with LTE on and off and have noticed little or no difference in battery life. Maybe a little better data speed even on 3g, but not enough in my area to prove it with speedtest.
I believe what it is is the Radio no matter what looks for a signal from CDMA or LTE either way BUT I believe the options only opts as to what type of signal is allowed to be USED by the radio as the primary signal technology. So basically either way it searches for both since they are both integrated into one on the processor but accepts the best one available according to the settings in OS(Best As In LTE if available and CDMA if not, not Best as in terms of signal strength).
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I have my radio set to CDMA only and I defiantly see a difference
StarrLimit said:
I have my radio set to CDMA only and I defiantly see a difference
Click to expand...
Click to collapse
In what? Battery or speed? Good or bad? Numbers to back it up?
Sent from my EVO using xda premium
StarrLimit said:
I have my radio set to CDMA only and I defiantly see a difference
Click to expand...
Click to collapse
Your defiance astounds and impresses me.
Believe that both 3G and LTE run on the 1900 radio, where the WIMAX used a 2500 separate radio that killed the WIMAX battery life. Plus the LTE phone battery life with the larger battery and ICS (and less HTC crapware polling the network all the time) has lasted all day with moderate use and power left to spare.
Was disappointed that there wasn't an easy switch to turn off the LTE like in WIMAX phones but then if both 3g and LTE are truly tied together that it would be impossible to turn off.
I live in Houston and have been able to pick up 4G since Friday. Ever since then I have noticed that my battery life has not been as good as it was before 4G went life. I used to be able to make it the full day without recharging but now im only getting a little over half a day.
This used to happen with my OG EVO thats why I always kept 4G off on that phone.
I have full 4G bars at my house but in downtown where I work its very spoty. I am guessing the battery drain is coming from the constant cycling between 3G and 4G.
Has anyone else seen a decrease in battery life after 4G went live?
O.LPZ81 said:
I live in Houston and have been able to pick up 4G since Friday. Ever since then I have noticed that my battery life has not been as good as it was before 4G went life. I used to be able to make it the full day without recharging but now im only getting a little over half a day.
This used to happen with my OG EVO thats why I always kept 4G off on that phone.
I have full 4G bars at my house but in downtown where I work its very spoty. I am guessing the battery drain is coming from the constant cycling between 3G and 4G.
Has anyone else seen a decrease in battery life after 4G went live?
Click to expand...
Click to collapse
One thing I have noticed about mine (I don't have LTE yet, BTW), is that I don't have a switch like I used to with my EVO 3D. Is there a way to turn it off? I'd assume that if you're running LTE all day long, you're probably going to burn more battery than normal.
eXplicit815 said:
One thing I have noticed about mine (I don't have LTE yet, BTW), is that I don't have a switch like I used to with my EVO 3D. Is there a way to turn it off? I'd assume that if you're running LTE all day long, you're probably going to burn more battery than normal.
Click to expand...
Click to collapse
Settings, mobile network, change from CDMA/LTE to CDMA only
go in to settings, click on mobile network, then select cdma only if you only want 3G... I've found that you have to do that everytime you restart, for some reason it doesnt remember
painkillaz said:
Settings, mobile network, change from CDMA/LTE to CDMA only
Click to expand...
Click to collapse
iamkoza said:
go in to settings, click on mobile network, then select cdma only if you only want 3G... I've found that you have to do that everytime you restart, for some reason it doesnt remember
Click to expand...
Click to collapse
So, it's not just as easy as it used to be. I'm sure they'll run out an update with a switch like they used to have. That'd be ideal. You would think they would've put it in that last update.
eXplicit815 said:
So, it's not just as easy as it used to be. I'm sure they'll run out an update with a switch like they used to have. That'd be ideal. You would think they would've put it in that last update.
Click to expand...
Click to collapse
I'd imagine they didn't include a toggle widget because they are selling this phone in areas where the 4G LTE rollout isn't even scheduled yet (i.e. beyond 2014).... if you give people a widget for 4G, it will just make them unhappy it doesnt work...
I was able to test out 4G in Kansas City for the first time yesterday for about 45 minutes and I thought it used less battery than 3G does. I was at a restaurant and while I was waiting for my food I ran speed tests (highest was about 10,000 kbps and my dad actually got around 9,000 kbps on wimax on his OG evo) and downloaded two 25MB games. It downloaded faster than my wifi... I left it on while I ate for about 30 min. and it was still at the same battery percentage when I started to use it again. It's probably draining a lot because of the cycling between 3G and 4G.
Sorry about the rambling.
It's definitely draining faster if its cycling between 3G and 4G.
It's been discussed before but the logical reason behind there being no actual toggle widget for LTE is because a. It doesn't drain as much as WiMAX did because the radio is built into the soc and not separate so shutting it off completely isn't so much of an issue to save battery. If you wanna save a little extra juice you can stop the radio from searching for an LTE signal through the settings. The other reason is LTE unlike WiMAX is being built to be your permanent connection unless you have to fallback to 3G. It will have better coverage and penetration. It's not a supplement like WiMAX was. Not saying WiMAX couldn't have been but based on the frequency it is on and the way it rolled out it just never happened that way.
Sent from my EVO using xda app-developers app
Also keep in mind that not all towers have LTE on them so your phone may have to use more juice to reach the spread out towers. It will get better with time as all the towers are scheduled to get LTE.
Sent from my C64 w/Epyx FastLoad cartridge
4G is a much larger battery drain than 3G. Ask anyone with a Verizon phone. Using the LTE is obviously going to empty your battery faster.
The S4 SoC contains a programmable world modem and zero radios. That's straight from the Qualcomm literature that anyone can download.
That Qualcomm processors contain radios is an urban myth perpetuated by uninformed blog writers and has been going on for over two years.
The radio transceivers are separate and housed in separate chips (usually more than one transceiver per chip). When properly controlled, radios are basically shut down when not in use.
Because all voice is on CDMA, it's a reasonable expectation to lose a bit more power when talking and downloading via 4G at the same time.
SoraX64 said:
4G is a much larger battery drain than 3G. Ask anyone with a Verizon phone. Using the LTE is obviously going to empty your battery faster.
Click to expand...
Click to collapse
4G on this phone will possibly drain your battery a little faster than 3G (i mean a little). The S4 has the LTE radio built in to the chip so it's pretty much powered all the time, but not active. The Thunderbolt(example Verizon phone) contains the S2 which doesn't have it built in so it requires a separate antenna which will require more space and more battery. Only cycling between the technologies will cause the battery to drain the most.
bobarune said:
4G on this phone will possibly drain your battery a little faster than 3G (i mean a little). The S4 has the LTE radio built in to the chip so it's pretty much powered all the time, but not active.
Click to expand...
Click to collapse
No.
The S4 chip contains zero radios. Please see my post above yours.
The Thunderbolt(example Verizon phone) contains the S2 which doesn't have it built in so it requires a separate antenna which will require more space and more battery.
Click to expand...
Click to collapse
In addition to a separate radio for LTE, the Thunderbolt needed an additional LTE modem, because the S2 in the Thunderbolt had only the CDMA and GSM modems built-in.
Liike all Qualcomm chips, it had ZERO radios built in.
Only cycling between the technologies will cause the battery to drain the most.
Click to expand...
Click to collapse
Yep.
View attachment QU_SnapdragonS4_White_Paper_FNL_Rev6.pdf
View attachment snapdragon-s4-product-overview.pdf
View attachment snapdragon-specs.pdf
Modems, yes. ZERO radios. None. Nada. Zip.
The counting of the radios in the S4 shall be zero and zero shall be the counting of the radios in the S4.
EarlyMon said:
No.
The S4 chip contains zero radios. Please see my post above yours.
In addition to a separate radio for LTE, the Thunderbolt needed an additional LTE modem, because the S2 in the Thunderbolt had only the CDMA and GSM modems built-in.
Liike all Qualcomm chips, it had ZERO radios built in.
Yep.
View attachment 1204839
View attachment 1204840
View attachment 1204841
Modems, yes. ZERO radios. None. Nada. Zip.
The counting of the radios in the S4 shall be zero and zero shall be the counting of the radios in the S4.
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Click to collapse
Thanks for the links and clarification. However I think the point at hand is the S4 was designed with LTE in mind and helps conserve battery when compared to other SoC's on the market. I believe the Exynos is currently the only other LTE compliant SoC however if I'm not mistaken due to production Samsung only used them for the korean SIII. Regardless using 4G will cause more battery drain but compared to older phones the drain will not be as bad thanks to the S4. And if the phone is constantly switching connections it will drain even faster.
Cordy said:
Thanks for the links and clarification. However I think the point at hand is the S4 was designed with LTE in mind and helps conserve battery when compared to other SoC's on the market. I believe the Exynos is currently the only other LTE compliant SoC however if I'm not mistaken due to production Samsung only used them for the korean SIII. Regardless using 4G will cause more battery drain but compared to older phones the drain will not be as bad thanks to the S4. And if the phone is constantly switching connections it will drain even faster.
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Click to collapse
Yes, the S4 is more power efficient for LTE because it doesn't require one more modem chip in addition to the radios.
My point in clarifying is that people are over-estimating the power budget by thinking that separate radios are not in play.
If trying to wrap one's arms around performance as a function of tech (something I completely support), it's important to not be misled by the unwashed news bloggers on the tech side.
As for the Korean SGS3 LTE model, it contains a separate LTE modem chip, at higher cost and complexity along with lower reliability and battery efficiency.
http://www.theverge.com/2012/6/24/3115367/south-korean-galaxy-s-iii-quad-core-lte
Expect to see Samsung processors with embedded LTE modems in the near future.
I don't understand why LTE would be a larger drain. If it is a newer technology, and the phone was built with the prime directive of utilizing a 4g network. Shouldn't it create optimal battery life when locked on "LTE only"?
gdrocks said:
I don't understand why LTE would be a larger drain. If it is a newer technology, and the phone was built with the prime directive of utilizing a 4g network. Shouldn't it create optimal battery life when locked on "LTE only"?
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LTE only isn't an (easy) option, you still need the CDMA radio active for voice.
Someday, according to a statement by Dan Hesse, we will get SVLTE - simultaneous LTE voice and data. Then we can roll LTE only.
The target is get the LTE system power efficiency as high as possible.
PS -
All of the HTC WiMax phones used the exact same Sequans radio SoC, built on older, power thirsty 65 nm chip technology.
Can't get details without a proper teardown (and I spent the morning this > < close to tearing mine down, but I couldn't get a good macro photography rig set up) we can't know the actual chip tech used for our radios. I suspect it's state of the current art, though.
EarlyMon said:
Yes, the S4 is more power efficient for LTE because it doesn't require one more modem chip in addition to the radios.
My point in clarifying is that people are over-estimating the power budget by thinking that separate radios are not in play.
If trying to wrap one's arms around performance as a function of tech (something I completely support), it's important to not be misled by the unwashed news bloggers on the tech side.
As for the Korean SGS3 LTE model, it contains a separate LTE modem chip, at higher cost and complexity along with lower reliability and battery efficiency.
http://www.theverge.com/2012/6/24/3115367/south-korean-galaxy-s-iii-quad-core-lte
Expect to see Samsung processors with embedded LTE modems in the near future.
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Click to collapse
Ok, once again thanks for the clarification. It'll be interesting to see Qualcomm's answer to those chips since both Samsung and Nvidia will have quad-core SoC's with LTE modems in the near future.
gdrocks said:
I don't understand why LTE would be a larger drain. If it is a newer technology, and the phone was built with the prime directive of utilizing a 4g network. Shouldn't it create optimal battery life when locked on "LTE only"?
Click to expand...
Click to collapse
To add to EarlyMon's response. Another reason would be 4G requires more power because of the higher bandwidth. Even though the SoC is designed to support it by nature the higher bandwidth going through the phones has a higher power draw. It's just not as bad as it could be because the technology is evolving to accommodate it. Again e.g look at the Thunderbolt and a lot of early Verizon LTE phones. The technology wasn't quite there yet and the phones battery life was abysmal. As the technology evolves the battery life gets better.
Than what do they mean by "integrated" they constantly use it when referring to lte on the chip, also i read in one of those links that there lte chip Supports multiple lte 4g, 3g, & 2g frequencies so does that mean when sprint swiches lte over to the iden network frequency that are phones will be compatible via a software update?
Sent from my EVO using xda app-developers app
noneed2aim said:
Than what do they mean by "integrated" they constantly use it when referring to lte on the chip, also i read in one of those links that there lte chip Supports multiple lte 4g, 3g, & 2g frequencies so does that mean when sprint swiches lte over to the iden network frequency that are phones will be compatible via a software update?
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Check out these two diagrams, first is the S4, second is the Tegra 3 -
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Note that big block, upper left, on the S4 - lots of mobile radio technology _support_ is integrated, that's largely or completely missing on other processors.
The world modem is programmable, so instead of lots of unique separate chips depending on the carrier, they just program that block as needed.
As for whether or not our LTE radios can handle the upcoming 800 MHz operations, I can't say (don't know) but here's what would be required - either a programmable radio, or a radio with the function there but unused, and if either of those are true, then the phone would have to be recertified by the FCC to work at the new frequency. And, it would have to work with the existing complement of antennas.
So, I suppose that a firmware update is possible, but I don't know.
Droid Life came out with a full review today. The battery life is quite good according to them (average life of 21 hours), but surprisingly he reported some 4G drop issues and said the camera wasn't that great. I'm hoping the signal was just a fluke, but it seems to be since other big reviewers have said it's top notch.
http://www.droid-life.com/2012/11/19/htc-droid-dna-review/
I saw it, and though meh on the 4G drop. It could have easily been in his area. Of all the reviews I've seen he was the only one to have that issue. I also thought the photo samples he had were really not as bad as he described them to be either.
As much as I want to jump on this phone, the only issue I seem to have now is storage space. It's this or the GN2. I still don't know?
8192 on Quads! Thanks sick!
Damn it when will Wednesday get here??!??!!!?!?!!
I actually experience the 3g/4g drop often on my galaxy nexus and I live in the bay area. Definitely sucks my battery to oblivion. Since HTC is said to make better radios I hope the drops would be less frequent.
Sent from my Galaxy Nexus using Tapatalk 2
foolie said:
I actually experience the 3g/4g drop often on my galaxy nexus and I live in the bay area. Definitely sucks my battery to oblivion. Since HTC is said to make better radios I hope the drops would be less frequent.
Sent from my Galaxy Nexus using Tapatalk 2
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I wouldn't worry about it, when I got the GNex I my thunderbolt up and running for a couple days and the radios are noticeably stronger and more stable on the Thunderbolt. Side by side I'd get solid 4g on the bolt where the GNex was spotty at best. My house isn't the in the strongest 4g area, but the Tbolt wouldn't drop off the signal no matter where in my home I was. The GNex I get 4g outside or by windows and that's it, with 3g speeds. The tbolt would pull a solid 12-15up 3-5down sitting right next to it.
Not to mention the GNex isn't exactly known for its radios.
flaring afro said:
Droid Life came out with a full review today. The battery life is quite good according to them (average life of 21 hours), but surprisingly he reported some 4G drop issues and said the camera wasn't that great. I'm hoping the signal was just a fluke, but it seems to be since other big reviewers have said it's top notch.
http://www.droid-life.com/2012/11/19/htc-droid-dna-review/
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Click to collapse
The review doesn't talk about any drops in the traditional sense, but rather that the phone was "dropping back" to 3G in weak 4G areas:
I constantly found the device dropping back to 3G, even when other devices were maintaining a 4G connection, albeit a poor one at that.
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This is something that is done on purpose in order to maintain a more reliable connection without as many actual drops when switching between 3G and 4G. With my Rezound, Galaxy Nexus, and RAZR MAXX, when I would be out on the edge of a 4G area, the phone would jump back and forth between 3G and 4G, resulting in actual drops in service and a drain on the battery. My S3 does what the DNA does - opts to stick with 3G in weak 4G areas. The result is a far more stable connection with less drops in service and much less battery drain.
bsweetness said:
The review doesn't talk about any drops in the traditional sense, but rather that the phone was "dropping back" to 3G in weak 4G areas
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Yeah, that's what I meant. Only dropping down from 4G. He said that you can't disable 4G though, but I'm guessing there will be a non-stock way of doing it.
WilliamStern said:
I also thought the photo samples he had were really not as bad as he described them to be either.
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I thought the pictures looked great, but I'm also comparing them to my 2.5 year old Incredible so pretty much any high end phone, besides maybe Motorolas, will look great to me lol
flaring afro said:
Yeah, that's what I meant. Only dropping down from 4G. He said that you can't disable 4G though, but I'm guessing there will be a non-stock way of doing it.
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man i really hope there will be a way you can disable 4G whenever you want. that'd be so useful if i needed to conserve battery and i'm in a spotty 4G area
flaring afro said:
Yeah, that's what I meant. Only dropping down from 4G. He said that you can't disable 4G though, but I'm guessing there will be a non-stock way of doing it.
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Pretty much every LTE phone released on Verizon over the past several months hasn't had the option to disable LTE in the stock settings. Even some phones that used to have the option have had it removed in updates (such as the RAZR and RAZR MAXX). But with all of these phones, there have been ways of putting the phone into 3G only mode without root via an app or through settings that can be accessed through the phone's dialer.