[Q] disable LTE???? - AT&T Samsung Galaxy S II Skyrocket SGH-I727

I'm on the stock ICS. Is it possible to disable LTE, because I am not in an LTE area. And I would like to have everything my battery has to offer.
Sent from my SAMSUNG-SGH-I727 using xda app-developers app

You don't need to change anything. Your battery will only draw more when actually using lte. For example, I get much longer battery life at home (no lte) with a lot more use then I do on days when I work and am in an lte area with little use.
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Sent from my Skyrocket i727 running Sky ICS
For a one stop shop are Vincom's threads
Everything Root: http://forum.xda-developers.com/showthread.php?t=1773659
Returning to Stock: http://forum.xda-developers.com/showthread.php?t=1652398

So, it isn't constantly searching for the LTE?
Sent from my SAMSUNG-SGH-I727 using xda app-developers app

ajt1995 said:
So, it isn't constantly searching for the LTE?
Sent from my SAMSUNG-SGH-I727 using xda app-developers app
Click to expand...
Click to collapse
I believe there is a way to turn off lte (personally I don't know how). Data is always on (unless u manually override it) and it picks up the signal. If it picks up data from lte then it shows as lte and if not then it stays at 4g. Sorry, I know I worded this poorly and it is confusing as a result. I feel lte isnt constantly searched for but rather goes through the data (which is constantly searched for). It simply notes whether the data as delivered via lte or 4g. Again, sorry for the rambling post and note that this isn't fact but merely my opinion. If anyone knows for sure, please chime in
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Sent from my Skyrocket i727 running Sky ICS
For a one stop shop are Vincom's threads
Everything Root: http://forum.xda-developers.com/showthread.php?t=1773659
Returning to Stock: http://forum.xda-developers.com/showthread.php?t=1652398

There are two radios in the SR, one for GSM/UMTS/EDGE/HSPA and one for LTE. LTE is data only, all voice calls still go over the GSM radio.
The phone prefers LTE for data, so if you're in an area of weak or no LTE service then it searches for LTE periodically. The worst case is areas of weak LTE as the phone will hunt back and forth between GSM and LTE radios.
LTE cannot be disabled in the stock ICS rom.
CM9 has a Network Mode option to select between GSM or GSM/LTE. I switch to GSM only while at home as the LTE signal is marginal there.

You can disable lte thru the build.prop... but don't do it unless you know what you are doing... i have a set of bad ass tweaks that will do this for you and will be posting in the dev section as soon as i get all the bugs worked out
Sent from my SGH-I727 using xda app-developers app

Wouldnt running a RAT unlocked radio keep it from searching for LTE? I run the UXLF3 on mohans stock/deodexed UCLF6 and dialed *#2263# and changed to WCDMA ALL. My way of thinking was even if LTE was on, the phone wasnt searching for it. Right/wrong?

In a different thread about turning off LTE radio, someone was saying that you cannot turn off the radio itself. You can still turn off the LTE mode (which I presume only tells Android not to try to use the LTE radio) if you have a RAT-unlocked radio (e.g. UXCLF3 from Seanz' Sky ICS thread).
I'm using Seanzscream's Sky ICS ROM and in the latest version (4.2F-7B) you can switch off LTE from the Mobile Networks -> Network Mode menu instead of going through the *#2263# Service menu.

ism_can said:
In a different thread about turning off LTE radio, someone was saying that you cannot turn off the radio itself. You can still turn off the LTE mode (which I presume only tells Android not to try to use the LTE radio) if you have a RAT-unlocked radio (e.g. UXCLF3 from Seanz' Sky ICS thread).
I'm using Seanzscream's Sky ICS ROM and in the latest version (4.2F-7B) you can switch off LTE from the Mobile Networks -> Network Mode menu instead of going through the *#2263# Service menu.
Click to expand...
Click to collapse
Actually mine doesn't work. I saw the option for it so I flashed the uxlf3 and it still doesn't work. Whatever I select holds for a couple seconds and then defaults back to the auto setting. (GSM/HSPA/LTE auto)

That is correct. You CANNOT disable LTE Radio (you can change the preferred network mode).
- You need to be first SIM Unlocked and have a RAT Unlcoked Radio.
- And, you need a ROM with that feature enabled. My EMBRYO ROMS have always supported this (I need it too ).

Will turning off the LTE also disable the 4G? We do not have LTE here in podunk SC. I am running TC JB 4.1.1 with InstigatorX 6.3.4. Would love to keep the 4G but desperate to find a battery fix that works.

I think cm 10 allows you to toggle networks to get 3g not for certain though
I know embryo 5.1 allows network change with requirements
Sent from my SAMSUNG-SGH-I727 using xda premium

When I was on stock ICS didn't have LTE but I did notice when on certain area I would go to it would switch to LTE

evil_ryu said:
When I was on stock ICS didn't have LTE but I did notice when on certain area I would go to it would switch to LTE
Click to expand...
Click to collapse
correct LTE data is a based off of Network Map location you can find that on your Carriers webpage in most cases

Related

HSPA+

Heyy i was trying to use odin with the uxkg3 rom and doesnt work for me then i take rhe phone to his stock fw and now i dont have the HSPA+ and now on the signal bar says edge please helpp!!!
Sent from my SAMSUNG-SGH-I997R using XDA Premium App
Ensure that 2G networks are not only selected - try *#*#4636#*#* and select ' phone' and go to the bottom - GSM/WCDMA Auto PRL or something like that should be selected.
Also, try *#2263# if you have the Rogers modem and change the band to automatic mode that way. You can't use this option with the AT&T modem.
Lastly, you are currently in an HSPA or standard UMTS zone with good coverage, correct? EDGE will display sometimes with a stronger 2G signal where 3G/HSPA are weak.
Sent from my SAMSUNG-SGH-I997R using XDA App
Thanks
Sent from my SAMSUNG-SGH-I997R using XDA Premium App
I am having the same issue on AT&T. After playing around with Infused 2.1, I reverted back to the stock UCKD5 baseband and build, and I cannot connect to HSPA/HSPA+ anywhere, even with excellent coverage. I confirmed all of the GSM/WCDMA auto (PRL) settings, but cannot get the phone to connect to anything other than EDGE. Any ideas?
Umm...
I would guess try the newer modems and see if they work. If they do not then do a full restore. Other then that i have no idea. Does anyone know if it is safe to be on the infused rom then flash a modem like the original onto it?
Flashed the original factory AT&T ROM using Odin (unrooted version)...phone works great but still no 3G/4G, and a very poor EDGE signal. I have an AT&T BlackBerry which has a booming 3G signal in the same area. The AT&T store installed what they claimed was a 4G SIM card when I purchased the phone. I wonder if the infuse needs to be "re-activated" to work with HSPA?
storm2517 said:
Flashed the original factory AT&T ROM using Odin (unrooted version)...phone works great but still no 3G/4G, and a very poor EDGE signal. I have an AT&T BlackBerry which has a booming 3G signal in the same area. The AT&T store installed what they claimed was a 4G SIM card when I purchased the phone. I wonder if the infuse needs to be "re-activated" to work with HSPA?
Click to expand...
Click to collapse
Our inspire had to have something done like that
Sent from my SAMSUNG-SGH-I997 using XDA App
I have an idea!
Ok in the dialer do *data#. Then you will get a message. If you are above 2024 mb or somthing like that it will start to throttle speeds to edge.
Ryanscool said:
Ok in the dialer do *data#. Then you will get a message. If you are above 2024 mb or somthing like that it will start to throttle speeds to edge.
Click to expand...
Click to collapse
That won't start until September or October.
Are you sure?
Are you sure? Because for me i went over for a little bit and my speeds became extremely slow. Anyway, back on topic, does anyone else have any ideas?
Fixed it...to get HSPA/HSPA+ back, I did a "software format" using the following dial code: (this will wipe your phone as soon as you type it!)
*2767*3855#
After it reset, the H+ icon appeared after a few seconds.
Ryanscool said:
Are you sure? Because for me i went over for a little bit and my speeds became extremely slow. Anyway, back on topic, does anyone else have any ideas?
Click to expand...
Click to collapse
I am up over 4gb this month and not throttled fyi....
Sent from my SAMSUNG-SGH-I997 using XDA App
Lol Just to let you guys know I'm at over 13gb right now and haven't noticed any throttling.

3g/4g/LTE Toggle

so i was playing with my friends s2 which is on sprint and he has a 3g/4g toggle. is it possible to do this on ATT? is it possible to run sprint roms on the att version?
i would love to be able to move data to 3g/edge while i am not really using the phone and this can save me tons of battery.
if someone knows please help.
also, ive tried the manual mode but it doesnt let me select other options in network settings.
ag
Please do not even think about trying.to put a epic 4g touch rom on the skyrocket. Or anyother phones rom. Do not flash anything other then skyrocket. , and tmobile galaxy s2 roms on your phone or you will brick it. And no there is no toggle to turn off lte. You can edit the apn settings so it will not use lte. A quick search will explain how u can do that
Not sure about AT&T but the Rogers ROM has a fairly quick way to switch... In Settings-Wireless and Network-Mobile Networks, there is "Network Mode" which allows you to pick from GSM/HSPA/LTE (Auto mode), GSM/HSPA (Auto mode), GSM only, or HSPA only... I switch it to the GSM/HSPA (Auto mode) when I am not in Ottawa (no LTE in Deep River) and it saves a fair bit of battery.
Jamie
Att does not have that available
silver03wrx said:
Att does not have that available
Click to expand...
Click to collapse
The Rom I am on, as well as others I am sure allows me to set the following:
GSM/HSPA/LTE (Auto)
GMS/HSPA (Auto)
GSM Only
HSPA Only.
Is this not the same thing?
Currently using http://forum.xda-developers.com/showthread.php?t=1377087
Must be a rogers base rom
silver03wrx said:
Must be a rogers base rom
Click to expand...
Click to collapse
Could be. I don't recall. I've seen it in others as well. Was surprised as I had already known ATT didn't have it in stock.
It is. Att base roms this is what you get
Type: *#*#4636#*#* in the dialer and hit the first one, there at the bottom u can turn off 4g Lte and 4g HSPA
Which setting do you use though to shut it off to 3G only on AT&T? The options aren't very descriptive. Some are obviously not used but I'm not sure which to try. Here's the options I get by putting in that *#*#4636#*#*:
WCDMA preferred
GSM only
WCDMA only
GSM auto (PRL)
CDMA auto(PRL)
CDMA only
EvDo only
GSM/CDMA auto (PRL)
Unknown
GSM/WCDMA/LTE Auto [This is the one that is selected]
Also, it seems like it doesn't let me change it. I tried setting it to GSM only and when i came back to the screen it was still on the LTE Auto setting.
Yeah I'm confused what to choose to o
Sent from my SAMSUNG-SGH-I727 using XDA App
None of the settings stick for me.
Ditto. I used the app "phoneinfo" which is just a short cut way of doing the #*#*4636*#*# thing, and when I change it, it always goes back to GSM/WCDMA/LTE.
Sent from my SAMSUNG-SGH-I727 using Tapatalk
^^
bump
How do I make the settings stick?
activemind said:
^^
bump
How do I make the settings stick?
Click to expand...
Click to collapse
My understanding is the stock radio won't allow us to switch. Can someone confirm?
Solution please?
crush said:
Solution please?
Click to expand...
Click to collapse
u troll u. Welcome to the skyrocket section, please don't eat too many newbies for breakfast
icenight89 said:
u troll u. Welcome to the skyrocket section, please don't eat too many newbies for breakfast
Click to expand...
Click to collapse
lol whats' there to troll? i want to have the option just like what rogers provided without changing roms etc
3g or 4g, with no LTE would be stellar. It would get me more play time on Pandora and Tunein. I use Nav and Tunein, when I am on the road, and use a 1Mah charger, and it's a very slow and steady drain, I suspect when I am in and around home, St. Louis, I am running LTE and eating battery.
I suppose if I have to have LTE constantly, another option would be better pricing structure. Maybe 5gigs for 30 a month, or unlimited again.
The att radios are rat locked.
So no you can not change these settings.

Lost LTE

I have ICS-SUPERLITE-4.2 on Rogers and i totally lost LTE. I wrote in many existing threads and dev section and no one answered.
I lost LTE, even in areas of full reception, i dont have it, i used stock APN and LTE APN and still dont get it. I do get 4G.
Other on rogers running 4.2 have lte, just less reception so im guessing radio is not the problem. Any idea?
mhx did say he broke lte in 4.1 so maybe you got something from that. im flashing now and ill see how it goies
well im on 4.2 so its supposed to be fixed
I was having lte issues on 4.2 aswell
Sent from my SAMSUNG-SGH-I727 using xda premium
finally got an good answer from another thread...wokred for me instantly
mattymon said:
LTE works fine. Just make sure it says ltemobile.apn instead of rogers-core. If it still doesnt work then go int the phones menu *#2263# and select option 4. After that go back into the menu again and select 1 for automatic.
Click to expand...
Click to collapse
I've had to use the *#2263# option to get LTE on every ICS ROM I have tried so far, works great but sometimes I have had to redo it after the 2nd and 3rd reboot for it to take...
Another solution is after you flash an ICS ROM is to have patience , if you wait 5 minutes or so after flashing, before even touching\unlocking the screen, then most of the time everything settles in nicely on its own.
if ur using rogers with the ics leaks, there's several issues. Call id and lack of lte being one of them. This issue is present with all of them, it is an unstable leal after all. i believe lack of lte unless near a strong connection is due to uclca4 issues.
well after doing what i wrote 2 posts above, i have no issues with phone except for reboot/power off hang, i also get the occasional 2-3 second lag but its quite rare. Besides, im very haapy with rom, battery life is much better than GB
no lte after ics leak
I've the same issue with AT&T in Miami which has a strong LTE network. LTE worked great with GB. After installing the ICS leak all I get is HSPA:11. When I go into *#2263# it says RAT Selection option is restricted. Anyone have a solution?
daviebeach said:
I've the same issue with AT&T in Miami which has a strong LTE network. LTE worked great with GB. After installing the ICS leak all I get is HSPA:11. When I go into *#2263# it says RAT Selection option is restricted. Anyone have a solution?
Click to expand...
Click to collapse
Probably don't have the correct apn. apn needs to be set to pta in order to get lte.
daviebeach said:
I've the same issue with AT&T in Miami which has a strong LTE network. LTE worked great with GB. After installing the ICS leak all I get is HSPA:11. When I go into *#2263# it says RAT Selection option is restricted. Anyone have a solution?
Click to expand...
Click to collapse
Ditto - well actually I AM seeing LTE, but a drastically reduced data rates. Does not seem to matter what ROM, or Kernel or how many times I have re-flashed or re-flashed just the ICS Radio, I get roughly HALF of what I was seeing on GB. Ugh. I don't WANNA go back to Gingerbread. I just want perfection. Is that too much to ask for?
beaups said:
Probably don't have the correct apn. apn needs to be set to pta in order to get lte.
Click to expand...
Click to collapse
It's not the APN, at least in my case. It just crappy reception, and it happened exactly when I flashed ICS, and has been like that ever since. This in spite of re-flashing the Olin leak, reflashing the the radio, etc. It really irks me, and I do NOT want to go back to GB
daviebeach said:
I've the same issue with AT&T in Miami which has a strong LTE network. LTE worked great with GB. After installing the ICS leak all I get is HSPA:11. When I go into *#2263# it says RAT Selection option is restricted. Anyone have a solution?
Click to expand...
Click to collapse
reflash the radio then you should be ok.
apn is set to PTA so not sure what to try next.
Sent from my SAMSUNG-SGH-I727 using xda premium
Sorry. Missed reflashing the radio. haven't rooted since installing I've leak. I'll try that next. Thanks
Sent from my SAMSUNG-SGH-I727 using xda premium
Ha! ICS leak. Gotta love auto correct.
Sent from my SAMSUNG-SGH-I727 using xda premium
RAT Selection option is restricted
Just flashed SeanZ ICS 4.2A-7 ROM and i727UCAL4 modem. I'm still getting "RAT Selection option is restricted". There is nothing else on that screen. This has been 3 different radios now and I cannot get a screen that allows me to select the radio band.
Would flashing a different kernel work? Any other ideas?

No LTE with Custom Roms?

I know the skyrocket I727 supports LTE. With stock firmware LTE is not a problem. But when I put any custom ROM it no longer goes to LTE. Is this normal or is their a separate download for an LTE radio in these custom ROMS?
This is not common at all. Check that your apn settings are correct. And you have the recommended radio. What rom are you using?
Sent from my SAMSUNG-SGH-I727 using xda app-developers app
I have tried slimbean superlite and a few others. My radio is well I can't seem to find that. My baseband version is i727ucll3 I use CWM touch...When I go into mobile networks is says HSPA:10 and that's it.
Radio or modern is the same thing as baseband. I'm not familiar with the slim bean rom so maybe someone who is can give you a better answer. But in Mobil networks, apn on the superlite rom I have three options with one being lte.
Sent from the short bus
If you're using a rom like PA, CM10, AOKP and probably Slim Bean too.. 4G=LTE.
Do I need to install a new radio? I just ran a speed test and I am getting only about 2 megs down, where before on stock it was like 15 megs down...
falcon26 said:
Do I need to install a new radio? I just ran a speed test and I am getting only about 2 megs down, where before on stock it was like 15 megs down...
Click to expand...
Click to collapse
You have the LTE Apn, correct?
OK don't laugh, but I have no idea what APN stands for where should I like for that? Where would I get one Bear with me here I'm not a complete NOOB I can do some stuff Thanks for the help too...
Settings, more, Mobil networks, access point names(apn)
Sent from the short bus
Ok I'm their but it will not let me choose anything except HSPA:10 when I try to choose LTE it reverts back to the HSPA
falcon26 said:
Ok I'm their but it will not let me choose anything except HSPA:10 when I try to choose LTE it reverts back to the HSPA
Click to expand...
Click to collapse
Can you take a screenshot of this screen.. it'd be easier to see what's up?
Edit: Also, what rom are you on now?
The radio you have is the right one, but I'd re-flash it. See vincoms stickies in the development section. He'll have the radio download and how to do it.
Sent from the short bus
falcon26 said:
Do I need to install a new radio? I just ran a speed test and I am getting only about 2 megs down, where before on stock it was like 15 megs down...
Click to expand...
Click to collapse
Download the ucll3 radio from vicoms sticky and flash it. You don't need to do any wipes and its not going to muck anything up. It'll take care of your problem.
Sent from the short bus
Have you run a speed test lately? As said, many custom ROMs don't have an LTE icon; 4G is LTE, H+ is what AT&T considers "4G" in areas without LTE coverage. Running a speed test is an easy way to tell. If you're getting LTE speeds when your phone says 4G, you're on a ROM that doesn't show an LTE icon.
jd1639 said:
Download the ucll3 radio from vicoms sticky and flash it. You don't need to do any wipes and its not going to muck anything up. It'll take care of your problem.
Sent from the short bus
Click to expand...
Click to collapse
Whoa how did you reply from the past?? On my tapatalk HD app on my note 10.1, it shows your reply date as 12/31/1969. Lol sorry to derail.
Do you have the wrong radio installed? i know that when i had ull3 installed and needed ulck4 it didn't show i had service at all, but it worked still
pre4speed said:
Whoa how did you reply from the past?? On my tapatalk HD app on my note 10.1, it shows your reply date as 12/31/1969. Lol sorry to derail.
Click to expand...
Click to collapse
I'm a blast from the past!
Sent from the long bus, I got mainstreamed
Have you tried opening dialer up, entering *#*#4636#*#*
Go to phone information, scroll down to a drop down menu. Sometimes it'll say WCDMA preferred. Open it and select LTE and your signal should drop and cone back as LTE. After select LTE/GSM and close it.
Are you sure you were on LTE in the first place? AT&T is kinda misleading with their branding and calls HSPA+ "4G" whereas LTE is "4G LTE".
Reply
T.J. Bender said:
Have you run a speed test lately? As said, many custom ROMs don't have an LTE icon; 4G is LTE, H+ is what AT&T considers "4G" in areas without LTE coverage. Running a speed test is an easy way to tell. If you're getting LTE speeds when your phone says 4G, you're on a ROM that doesn't show an LTE icon.
Click to expand...
Click to collapse
I try flashing pacman rom and my phone is displaying the 4g logo. In the pacman rom thread, I saw a snap shot with
the lte symbol. Any ideas?

Only 2g networks, no lte

Recently got a i727 with stock jb. First time with lte and was impressed on the speed. Flashed Philz cwm and cm 10.2. Everything works great execpt i can only have 2g on mobile data. If i deselect the 2g networks (saves battery) i lose all data connections altogether, regardless of the network i try to put it on (like lte/gsm/wcdma). I can still make voice calls and recieve sms but no data. From there, the only way to get data back on is to click 2g networks and start wifi. When i turn wifi back off the 2g starts up again. I understand att being RATT-locked, but wouldnt that mean i cant select my network, not limit my lte? Could this be a radio issue or something in the kernel? It runs the i727UCNJ1 radio, wich is the latest. LTE worked on stock JB, but wanted CM10 so i could use it as needed without killing battery. Any help would be greatly appreciated. Thanks.
Samsung i727
Philz touch 6.48.4 (cwm v6.0.5.0)
CM 10.2.0 (4.3.1)
Baseband i727UCNJ1
Kernal 3.0.89 g53452f3 build1
Sent from my SAMSUNG-SGH-I727 using XDA Free mobile app
I don't think you mentioned what network you're on. If you're on anything other than AT&T, you'll probably have to flash a different radio. There are a few listed in this thread:
http://forum.xda-developers.com/showthread.php?t=1785999
If you have service with AT&T, I'd suggest that you go into Settings/Mobile Networks/Access Point Names and check the APNs. If you already have some APNs listed, make sure that the "phone" APN is selected and not "pta." Or you might need to manually put in a new APN.
Sorry, I am on att. And yes, after researching I did try to flash to two different radios. The ucmc then the rogers. I even found how to put in new apn's but still nothing. Strange thing is in the mean time I have flashed slimbean and reflashed cm and both still had 2g only.
So last night I flashed the stock jb with cwm from the sticky and now 4g is back on stock like it was before I put cm 10 on the first time.
I like the ui on cm10 but whats the point of an lte phone if I cant use lte? Now the trick is finding why it would only use edge. If anyone has insight im more than open.
Edited to give a big thanks to mohan_kr for the info ive been reading.
Sent from my SAMSUNG-SGH-I727 using XDA Free mobile app

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