[Q] No LTE on some roms, and Other problems - AT&T, Rogers, Bell, Telus Samsung Galaxy S III

Ok so I got my Galaxy s3 today and it seemed awesome and very responsive but I just previously had both Nexus devices so of course I'm rooting it, I had some problems rooting the first time but I seemed so fix them but now my problems seem like they are within the ROM itself.
For example on Synergy with Ziggy Kernel I get pretty laggy and I have no LTE? Can somebody tell me how to get LTE back?
Also why when I flash other roms like Hyperdrive I have issues with aroma failing at the end but booting up to a boot screen of Verizion LTE when I'm on AT&T.
But when I flash intergalactic ROM I get my 4G back, also my other question is will it show an LTE if its 4G LTE because on some roms it will have no 4G or show the 4G.
I was wondering if anybody had any solutions to these problems because I'm really trying to figure this device out, thanks.

1, 2, 3. For ROM related issues, its best to post in the ROM thread.
2. Intergalatic shows 4G and 4GLTE for 4G and LTE respectively. As for showing 4G or 4G LTE it would be on the ROM DEV. Check in the thread itself.
For missing 4G, check your APNs after installing a ROM. Some AOSP ROMs need APN to be added manually after flashing them.

Related

Help. No LTE on rogers

Flashed touchwiz jellybean Rom. Had no lte. Flashed back to rogers original 4.0.4 and no longer have lte or 4g. Do I have to get into an lte area before It registers? I have my tab with me and it's getting 1 bar lte 4g in a weak area. Please help.
VarioIII said:
Flashed touchwiz jellybean Rom. Had no lte. Flashed back to rogers original 4.0.4 and no longer have lte or 4g. Do I have to get into an lte area before It registers? I have my tab with me and it's getting 1 bar lte 4g in a weak area. Please help.
Click to expand...
Click to collapse
Go into your Mobile Network settings, check "Access Point Name" and see if you're on the LTE apn.
kamandor said:
Go into your Mobile Network settings, check "Access Point Name" and see if you're on the LTE apn.
Click to expand...
Click to collapse
Yup. Could I have disabled lte?
same problem on 3 other roms
VarioIII said:
Flashed touchwiz jellybean Rom. Had no lte. Flashed back to rogers original 4.0.4 and no longer have lte or 4g. Do I have to get into an lte area before It registers? I have my tab with me and it's getting 1 bar lte 4g in a weak area. Please help.
Click to expand...
Click to collapse
I've had the same experience with three other roms I've flashed on my roger gs3. I have been through apn settings on all of the roms, but I still dont get LTE. When I recover the stock rom it goes back to 4g/lte every time. So, I'm sticking with the stock rom until there is a definitive fix. I'm nowhere near good enough at this to figure it out myself.
I suggest, if you want to keep receiving lte service, that you restore your stock rogers rom.
From what I've been reading on xda threads; it seems that this problem is central to the at&t/rogers/bell phones.
Roms I have tried:
d2can OTA keeproot
aokp_JB_d2att-ota-eng.task650-ktoonsez-10.3.2012c (this one is so bad ass; I might just put up with no lte)
Liquid smooth d2att jb v.2.0
NexusMod-Triune-II-(UX)-20120918-NIGHTLY
Are you basing the no lte status solely on the icon in your notification bar, or have you ran speed tests to confirm your network speed?
speed tested everytime
mrhaley30705 said:
Are you basing the no lte status solely on the icon in your notification bar, or have you ran speed tests to confirm your network speed?
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Click to collapse
No, unfortunately, when experiencing these 3g/h+ instead of 4g/lte problems, on the flashed jb roms, my download speeds are consistently under 5mb/s. When restored to stock rom they go up to almost 10mbs on 4g. I haven't been able to test the lte speeds yet because rogers towers somehow manage to miss my street, but are covering the college five blocks from here. I'll test again next time I'm on campus and see how they both fare.
There seem to be so many variables involved. I'm just trying to eliminate them one by one, so as not to confound the results.
I was thinking that the aosp roms don't usually have an lte icon.
Update:
mrhaley30705 said:
I was thinking that the aosp roms don't usually have an lte icon.
Click to expand...
Click to collapse
I had to give up on ktoonsez &task rom and go with CM10 nightly. This is after trying out cm cfx official rom, to no avail.
I was able to get 4g with cfx, task 650&ktoonsez,but only for a short time then they would automatically either lose signal, or switch to a different APN all together. Now I have around 13 mbps on CM10 with H+. I'll settle for that instead of sketchy hit or miss with the others. I'd like to figure out how to fix Task650&ktoonsez rom. I prefer that one so far after playing around with them all a bit.

I have a question for GS3 net work

SOS HELP
when I flashed AOKP's rom and using this rom almost half year
there has a crazy problem is about the T Mobile H+ signal
I remember that I used the stock rom showing the 4G icon everytime. and speed really fast.
but now I'm using the AOKP's rom when you using the H+ maybe just five minutes the network signal change to E(EDGE) or 3G
and network just stopped alittle while like 5-25 seconds then returned back to H+ or H
the problem make me crazy,
I searched in google sometimes but I didn't find any answer, maybe I just use wrong keyword on it.
so, anyone knows this issue? and how to solve that?
AOKP was released a 4g_signal.zip but it could not work right now on the android 4.2.2 ...
It happened every AOKP rom. when I flashed and use it
network signal is really instability.
It's not an issue.. the TMO S3 has only been supporting the HSPA+ bands at most and that is our 4G. When you flash an AOSP ROM it will display H+, which are the bands your on when your network is originally displayed as 4G on a stock ROM. H+ is displayed while data is being transferred. When no data is being transferred your data will bump down to UMTS or EDGE, which displays as your 3G, to conserve more battery. It's something you're gonna have to get used to on AOSP ROMs
Sent from my Nexus 4 using xda premium
Actually, no it does not jump down to Edge when there is no data pull (and you'll use MORE battery, because its search for the 4G network). When there is no data pull, it will display (on custom ROMs) as 3G. When it pulls data, it will show either H or H+. You already know that T-Mo network (exception of the LTE cities) has no difference between their 4G and 3G.
Now, you said that you're getting edge every once in a while. Try flashing a new radio. But, I'm confused, because you said you're trying to flash a 4G zip onto 4.2. There hasn't been a 4G zip even for a long time on 4.1. It won't work with most 4.1 ROMs, as the last time I saw a 4G zip it was for a specific updated of AOKP. Anyway, how long has the issue been going on since you started dipping down to Edge at certain times?
Don_Perrignon said:
Actually, no it does not jump down to Edge when there is no data pull (and you'll use MORE battery, because its search for the 4G network). When there is no data pull, it will display (on custom ROMs) as 3G. When it pulls data, it will show either H or H+. You already know that T-Mo network (exception of the LTE cities) has no difference between their 4G and 3G.
Now, you said that you're getting edge every once in a while. Try flashing a new radio. But, I'm confused, because you said you're trying to flash a 4G zip onto 4.2. There hasn't been a 4G zip even for a long time on 4.1. It won't work with most 4.1 ROMs, as the last time I saw a 4G zip it was for a specific updated of AOKP. Anyway, how long has the issue been going on since you started dipping down to Edge at certain times?
Click to expand...
Click to collapse
My mistake. That is what I was initially referring to. I should have said H+ displays AFTER data has been pulled. Thanks for clearing that up for me.
Sent from my Nexus 4 using xda premium

help with data and voice problems

I rooted a T989. Flashed CyanogenMod 10.1. The phone call audio is very choppy. But people can hear me just fine. The data is also weird, its constantly rotating between 3g, H*, and DC. Sometimes changing every few seconds. On the stock ROM it was 4g all the time.
I've tried different kernels and radios. Im gonna try other roms now.
Can someone give me some advice?
For the call audio I suggest you to flash the new Jelly Bean radio: http://forum.xda-developers.com/showthread.php?t=2226835
Also the data is completely normal to do that. Stock ROM couldn't display what other data it's using at the current moment because it only has one image to display (which happens to be 4G
Hope this helped
I talked to a TMO support person a while back, and it was explained to me that TMO no longer has 3G. They only have 4G (which isn't a true 4G LTE network but rather a "sped-up" 3G network) and EDGE (2G). This is probably why we no longer see 3G on the stock TW ROM's. Also, many of the custom ROM's (other than a modified TW ROM) have versions that are used on AT&T and Verizon which still use 3G.
As far as the choppy voice, I'd try flashing the appropriate radio like the other person suggested.
Hope this sheds some light.

[Q] my 4G is gone after rooted

My Tmobile S3 had 4G before rooted. But after rooted and installed another 4.1 OS, it showed up to H+. Last week, I installed 4.4 and now it shows 3G. It never shows 4G any more. What happened to it? My S4 shows 4G lte all the time. It has NOT been rooted.
First, check if your imei number is not 0. To check go to settings/about phone/status. If it is 0, then look the thread to restore your imei number.
Also sometimes some roms don't include the 4g icon in their ROM, so u will only see H+, but you do have 4g or lte.
Also 4.4 is not really stable ATM. it is bound to have many bugs such as connectivity problems. Try 4.3 ROMs like slimbean or CyanogenMod.
Sent from my SGH-T999 using Tapatalk

4G Disappeared

I flashed the Lollipop version of Liquid Smooth on my AT&T G3 and at first everything was working fine, 4G included. After a couple of days 4G disappeared. When this happened it didn't just go to 3G, it lost all data service completely. I originally figured it was the ROM and flashed back to the previous ROM I had using the TWRP backup I made beforehand. Same story, no data service. Figured maybe it was the modem so I flashed a working G3 modem on here, same story. I flashed to a different Lollipop ROM, Resurrection, to see if that fixed anything, nope. This is the ROM I currently have installed. At this point I went and look at the mobile network options and immediately noticed 1 issue, the preferred service was 3G and not LTE. I had an option to change it to LTE but when I actually select LTE it doesn't actually switch, it just stays on 3G.
The one good thing I managed to do was switch the APN to one that worked with 3G. The APN that was originally set was "pta", I can provide the actual APN information if that'll be useful but I figure most ROMs are going to have similarly named APNs. 3G works on at least 2 of the APNs listed for this ROM, "broadband" and "wap.cingular".
I called AT&T and determined that I my 4G service wasn't cut off; not that I really thought it was anyway as that wouldn't explain why I can't even select 4G as a network type. I'm kind of at a loss as to how I just randomly lost 4G access without actually making any changes to the firmware or OS of the phone. I'm also at a loss of how I can get it back.
And I am just sitting here with 3G with speed of 2 Mbps...
No one has any ideas or advice?

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