[Q] Best modem with AT&T - Galaxy S III Q&A, Help & Troubleshooting

Wanted to start a thread with info on modems that work well with AT&T for the GT-i9300. I have tried LF2 ad LE8 modems so far. Seems like LE8 was a bit more smooth and speed seemed a bit higher. Any other experience? LEF? LF6?

Try XXLF5
I'm in Ireland but the frequencies are the same and it doubled my data speeds.
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nodstuff said:
Try XXLF5
I'm in Ireland but the frequencies are the same and it doubled my data speeds.
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Awesome! Good info. Will try.

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Best modem for O2 Network[Germany]

Hey guys,
Is there any modem right now for better internet connection? I am using xxlf5 and i am on O2 Germany Network.
I have horrible data connection. I cant acces the internet at all in the subway or outside in some bar/restaurant.. mall or whatever.
Is there any modem which is better for O2 network in germany?
Thanks in advance!
break1
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break1 said:
Hey guys,
Is there any modem right now for better internet connection? I am using xxlf5 and i am on O2 Germany Network.
I have horrible data connection. I cant acces the internet at all in the subway or outside in some bar/restaurant.. mall or whatever.
Is there any modem which is better for O2 network in germany?
Thanks in advance!
break1
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i use LF2 in England tried them all that's the best one on o2 network hope that helps
I will try it out and report back!
Thank u very much
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I am also looking for the perfect modem. At the moment I would say that dlxea and xxlf2 are nesrly o par.
Right now I'm testing znle9 and will report back.
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Any updates? I'm near the center of Munich and terrible indoor reception. Maybe I should switch to a prepaid Voda provider...
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New modem for UK phone what about us?

Guys,
I'm not spamming. I've read this article few days back. I read this article again. Some given some positive feedback.
The question is whether it helps the battery drain for international phones..
This is the article
http://www.sammobile.com/2012/08/09/modem-update-galaxy-s-iii-fix-battery-drain/
Ty
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Judging by your Bio you're from Australia, in your region you are best to stick to the i9300T radios because of the frequencies in your country.
In saying that, the LH1 radio might work just fine, generally the idea with modems is what's good for me might be crap for you and vice-versa.
Basically YMMV.
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UK and I lose 70% of signal .
So modem is not for all phones.
You can try the modem yourself.
jje
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JJEgan said:
UK and I lose 70% of signal .
So modem is not for all phones.
You can try the modem yourself.
jje
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Agree 100%, I get way worse signal on LH1
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What would be considered a good modem for in the US?
That's one thing I haven't came across yet in the S3 i9300 threads, a threads featuring different modems? I came from the epic4g, being able to just throw one in with Odin.
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UK and I lose 70% of signal .
So modem is not for all phones.
You can try the modem yourself.
jje
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What network?
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I get brilliant signal on LH1... updated yesterday even got a signal at my sisters where anyone struggles to get a signal at her house... I'm on Virgin Mobile
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[Q] Frustratingly Slow Data Issue

Hello, I was hoping if I could get some help on slow data speed issue. I'm currently in Baltimore, Maryland area on AT&T unlimited LTE plan using "pta" APN setting. I see people reporting averaging around 5~8mbps on hspa+ but I'm not able to go above 2mbps. Most of the time it's 1~1.5mbps and it's so frustrating.
I'm pretty sure I have the right settings, but I'm not sure why I get such a crappy data speed? Any ideas? Any advice will be greatly appreciated, thank you!
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Have you tried switching modems?
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NewAussiefromCanada said:
Have you tried switching modems?
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I haven't tried that yet and there were so many of them I wasn't sure which to choose :/ switching modem is the only option I have to increase data speed?
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zen0s said:
I haven't tried that yet and there were so many of them I wasn't sure which to choose :/ switching modem is the only option I have to increase data speed?
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You CAN try switching modems.. but the most reliable thing you should do is to contact your service op for this
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It depends, have you rooted?
I would do as above suggested by contacting you service provider.
However modem switch is quite easy. Not sure exactly what modem would work best in your area. But it cannot hurt to try and if it does not work out switch back...
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Haven't rooted yet but I guess I'll give it a go.
I remember there was a thread with all the S3 modem listed... Now I can't seem to find it, anyone know?
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here modem list from ICS to JB => LINK
bordikun said:
here modem list from ICS to JB => LINK
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Thanks you that's what I was looking for.
Noob question.... To flash new modem, do I need to be rooted first?
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^
yup

Bad signal on every rom

Hi, im customer on Rogers in canada with LTE signal....every rom i try , jelly,ics...every time i got the bad speedtest ...With rogers i can go up too 29-30mb and on every other rom my speed is maximun 10-15mb
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Are you using the same modem/radio or are you changing them with the Rom?
written in your mud with my stick
same radio.....dont understand why...
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Are you using the exact same APN with the Canadian ICS ROM as you do the custom ROMs?
I am with Rogers and currently have a jb custom rom and find my lte to be the same, if not better with the UCLF6 modem.
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thutchinson85 said:
I am with Rogers and currently have a jb custom rom and find my lte to be the same, if not better with the UCLF6 modem.
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Why not post a screenshot of your APN? Thanks.
apn is the same....but with cm10 i dont have LTE icon
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[Q] Mobilicty/ Wind 1700MHz MODEMS

hey, has anyone had any luck getting service on the official JB rom? im using a debloated version of the official JB on the BLAZE modem, my provider is Mobilicty. im getting around 3 bars on the modem but the top of my note is over heating, but i never had this problem on ICS . Do you guys know of any other modem that would work on 1700MHz networks without over heating issues??
help??
boyboy1222222222222222 said:
help??
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I am using bell stock with this modem.
http://forum.xda-developers.com/showthread.php?p=41052527
osterizerblender said:
I am using bell stock with this modem.
http://forum.xda-developers.com/showthread.php?p=41052527
Click to expand...
Click to collapse
thanks for the reply. thats the same one that im using at the moment but the back of my phone keeps heating up when im using mobile data. im wondering is there a different modem that would work on mobilicity?
Heat is normal for me under data usage. Every phone does that.
For the modems, just keep trying different ones until you find the one that works best for you. There is no 100% guaranteed to work modem for everyone. Good luck
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Bad news. Phone isn't compatible with 1700mhz frequency. Might be out of luck. Sorry
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thatdude02 said:
Bad news. Phone isn't compatible with 1700mhz frequency. Might be out of luck. Sorry
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I've put mine on 1700 and pulled high Mbps ..................but seemed to stress phone a lot so I went back to automatic ... I'm on Tmo
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I'm wrong! Lol thank you for posting Shane. So now it basically narrows down for the best modem that works for you.
There might be a Wind/Mobilicity thread around here somewhere. Wish you luck
Maybe here?
http://forum.xda-developers.com/showthread.php?t=2232361
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I don't know why? Now I installed padawan jb. Getting very good speed and 4g. I don' have any issue of overheating. Probably, must be a different reason
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Might have a modem built in. Anyway, glad it sorted itself out! Woohoo
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Using the same modem which I mentioned before. No issues till now. I am glad to get better speed. :thumbup:
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Im with wind and use the telus modem which gets wicked speed. When using a cm based rom yhere is no need to tweak but if using a TW based rom do this trick, go into dial pad and input *#2263# then chose wcdma then pick 850 band, exit out and then go back in again via *#2263# and pick auto, wait a few secs and run a speed test. Mine hits around 2500 to 3000 which kill my hd2 at 1600 to 2000
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