Develop Bugs

3G problems on all roms

Every rom Im on forces me to go on 1x instead of 3g. 3g only works on the stock rom. Why is this?
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If the roms you're running happen to be aosp roms, then its showing your "true" connection. The stock rom will almost never show when you have 1x because that's how sprint/htc wanted it. On aosp if your connection is really bad (3G) it will show 1x if that's what you really have. To do some test of your own id recommend downloading "mobile signal widget" from the market and compare signal strength both data/voice.
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Okay thanks. Ya cuz a sprint Rep told me a few days ago tthat some towers are down so maybe that's whats going on
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That could also be the problem lol
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i kno in the frederick, md area they just put some 4G (pretty signifcant too) coverage in the downtown area (5-6mbps so far)...so if ur in that area it might maybe have somethin to do with it. my gf had 3g up until today (after a fix supposedly), but now she's on 1x. so im guessin they're puttin more coverage up. cuz over the last few days ive been getting a wider and wider spectrum of 4G in different places in the surrounding area(s).
i'll do the 3G fix once i get a sense rom flashed, and check it out with a update on this thread posting.

Okay so I was with my friend last night who has the same rom as me (CM7) and he had 3G while I still had 1x. Now I have no idea what's going on
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3g times out?

I was wondering if anyone else has/had this problem. My evo tends to time out on 3g, especially when I download a rom. The 3g indicator just goes dark and will stay that way for a couple minutes. It wouldn't be a big problem but I don't have hi speed where I live so every Rom I download is through my phone internet. When the 3g times out it causes the Rom download to fail. Has anyone else had this problem and what can you do to fix it? It's irritating having to download a rom 5 plus times
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j_shelton1988 said:
I was wondering if anyone else has/had this problem. My evo tends to time out on 3g, especially when I download a rom. The 3g indicator just goes dark and will stay that way for a couple minutes. It wouldn't be a big problem but I don't have hi speed where I live so every Rom I download is through my phone internet. When the 3g times out it causes the Rom download to fail. Has anyone else had this problem and what can you do to fix it? It's irritating having to download a rom 5 plus times
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This only happened to me when I was on stock. Now that I'm on a custom ROM, it doesn't happen anymore. I notice you are on a custom rom, so I'm sure that's not the problem.
It may be a coverage problem. It also happens to me when I'm switching from 3g to 1X, so that may be it.

The area I'm in has almost full signal. I've actually experienced this more on custom roms then when i was on stock.
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j_shelton1988 said:
The area I'm in has almost full signal. I've actually experienced this more on custom roms then when i was on stock.
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Have you tried flashing the more updated radios, etc?

Just did. Will report back to see if it helps
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j_shelton1988 said:
Just did. Will report back to see if it helps
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Any update on this? Just was curious if this did the trick for you.
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My 3g does not work on roms outside of stock sense roms. I've read where others says sense roms always show 3g even if you are getting a 1x signal but my wife has an evo 4g, unrooted, as well and my 1x is way slower then her 3g signal. I 1x signal won't load web pages in most cases. I downloaded the most recent OTA and then flashed a rom after words but still no 3g.

Any update on this? Just was curious if this did the trick for you.
After I flashed the new radios etc. I tried to download a rom overnight. When I got up it said download failed, then I remembered to update prl and what not. After i updated things were ok until I tried out my 4G. I was having major issues with it not downloading. It was extremely slow. I was using the shooter ROM when these problems started so I flashed another ROM and haven't had any problems so far. Is it possible for a rom to affect 3g and 4G performance?
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Bravo78 said:
My 3g does not work on roms outside of stock sense roms. I've read where others says sense roms always show 3g even if you are getting a 1x signal but my wife has an evo 4g, unrooted, as well and my 1x is way slower then her 3g signal. I 1x signal won't load web pages in most cases. I downloaded the most recent OTA and then flashed a rom after words but still no 3g.
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This isn't necessarily true. Most custom ROMs show 1x. However the stock does not. Also, 1x should be slower than 3g.
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Sorry if I wasn't clear but that was my point. Thats what most people "say" about roms showing 1x and my 1x is slower then my wife 3g so I know its not that we don't have 3g in our area, its the rom. Right now I'm using R2R-green-R3, which has a 4g LTE icon and faster then the 1x rom I was using before. I flashed the honeycomb theme over it looks great and works great!
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Bravo78 said:
Sorry if I wasn't clear but that was my point. Thats what most people "say" about roms showing 1x and my 1x is slower then my wife 3g so I know its not that we don't have 3g in our area, its the rom. Right now I'm using R2R-green-R3, which has a 4g LTE icon and faster then the 1x rom I was using before. I flashed the honeycomb theme over it looks great and works great!
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It shouldn't be the rom causing you to get 1x, have you tried updating prl/profile? I've run multiple custom roms and never had a problem. Areas where I know get 1x show it, but areas that get 3g show 3g and have 3g speeds
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I did up date the prl/profile but still no 3g. I'm at 3g speed now so its not a problem. Maybe I did something wrong on the other rom?
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LTE to 3G

So im really not sure.. Baseically the m7 switches from lte to 3g after awhile and never switches back even on stock rom
Ive flashed stock and factory it, still didnt fix
Ive flashed original radios and rom, still nothing
Ive called verizon they have "refreshed" my connection.. Still no dice
Ive always gotten lte anywhere i went, just dont understand why its acting this way
Anything else to try?
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Dieregard, its verizon itself.
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I have been having the same issue. Did you get it resolved? I was thinking it was the sim card, was that the case?
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mrbracht said:
I have been having the same issue. Did you get it resolved? I was thinking it was the sim card, was that the case?
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I had this issue and went and got a new sim card. It fixed the problem.:good:

I will request a new sim, the lady said it wasnt the sim..well now im going to demand one, thankyou
Editt New sim is on the way
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Try turning off your data, turning on airplane mode, then turning data back on and turning off airplane mode. That normally works for me. It gets the phone to rescan for towers, and it switches back over to 4G.
If the new SIM works let me know, I might have to try that.
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Yes new sim works :thumbup:
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It could also just be a weak 4G signal. Notice how Verizon likes to brag about their coverage but not speed; that's because they put up a few antennas every few miles and run them at high power. The LTE network just isn't as dense as 3G, so you have these signal gaps everywhere where the phone is on the border line between 3G and 4G. AT&T and T-Mobile stomp all over Verizon's 4G where they have coverage.

LTE bug

Hi I seem to have a problem getting LTE. I'm using a galaxy s3 i747m on Fido and I'm using stock Rogers ROM. I have a problem with LTE. I used to get it everywhere most of the time but it now only works once in a while. When I do finally get LTE it only works 30% of the time. I have full signal LTE but it doesn't load any webpages or anything. Once and a while it does though. I have tried bootloaders, modems, different Roms and I can seem to solve this problem. Does anyone know how I can fix this?
Thanks. I need my stable LTE back.
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Anyone?
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By modems do you mean basebands?
Have you look into your Access Point settings and preferred network type?

Yes by modems I mean basebands. My network type is LTE,3g, 2g. My APN is right. I can get LTE but when I do nothing loads at all. I have tried different Roms, different modems, different kernels and nothing seems to work. I did have LTE that worked before though.
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pjcordi said:
Yes by modems I mean basebands. My network type is LTE,3g, 2g. My APN is right. I can get LTE but when I do nothing loads at all. I have tried different Roms, different modems, different kernels and nothing seems to work. I did have LTE that worked before though.
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When did it stop working? Do you remember what was done to the phone?
If nothing particular was done before that happened, you might wanna give Fido a call so they can check your connectivity and perhaps get a new sim card.

Well it stopped once flashed aokp ROM. I have a cut some card so that could be the cause unfortunately. I'll try a new simcard and see if that fixes it. I might also try flashing back to complete stock but I'm not too sure if that would help at all. I remember having LTE as soon as I turned it on and now it never turns on.
Thanks for the info!
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pjcordi said:
Well it stopped once flashed aokp ROM. I have a cut some card so that could be the cause unfortunately. I'll try a new simcard and see if that fixes it. I might also try flashing back to complete stock but I'm not too sure if that would help at all. I remember having LTE as soon as I turned it on and now it never turns on.
Thanks for the info!
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You can backup your stuff, fully wipe and go on from there. Worth giving it a shot before changing your sim card.

I actually swapped the Sim card and that didn't seem to work. I'm just going to go back to complete stock and see if that works.
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I went back to stock and I still can't get let. Do you think it would be a good idea to change my flash counter back to zero? Nothing seems to be work and I know my phone doesn't have a problem. It has to have something to do with what I'm flashing. Any other ideas?
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+1 I'm on rogers I'm having the same problem :/ maybe its carrier related. I flashed the 4.4.2 rom then odined back to stock, thats when it started. IMEI seems intact aswell. Modem is good. Any ideas?

R5R said:
+1 I'm on rogers I'm having the same problem :/ maybe its carrier related. I flashed the 4.4.2 rom then odined back to stock, thats when it started. IMEI seems intact aswell. Modem is good. Any ideas?
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I have literally tried everything lol. I think it has something to do with our phones picking up the wrong signal. I live in Mississauga Ontario and I get LTE in the middle of the city but it doesn't connect at all. All it does is take forever to load a page and times out.
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So I fixed the issue. I added another APN to my settings. So I have two ltemobile.apn for fido. I turned off the phone removed the sim. Turned the phone back on without the sim and entered service mode *#2263# and I put it to LTE all in the settings. I then turned the phone off and turned it back on with the sim and lte is working and my speeds are back. After that was all done I entered back to service mode *#2263# and put the network back to automatic all and now the phone automatically connects to LTE when I want it to.
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Need help 😟😭

Hey guys I am unable to turn on 3g connection on my Android one.
I am using airtel postpaid and my plan is of rs 249.
2g works fine but when I switch to 3g the range drops and there is an R symbol. Check the images attached below. Please help.
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The location doesn't seem to have a good 3g connection; hence the behaviour. Move to a location which has good 3g connection and stable and then test.
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Sachin97 said:
Hey guys I am unable to turn on 3g connection on my Android one.
I am using airtel postpaid and my plan is of rs 249.
2g works fine but when I switch to 3g the range drops and there is an R symbol. Check the images attached below. Please help.
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yeah . no 3g in your locality..
if u r sure there s good 3g network available in your area.. , then use only WDCMA .. DIAL *#*#4636#*#* , then PHONE INFORMATION , THEN SELECT ONLY WCDMA ..

Faiyaz5yaz said:
yeah . no 3g in your locality..
if u r sure there s good 3g network available in your area.. , then use only WDCMA .. DIAL *#*#4636#*#* , then PHONE INFORMATION , THEN SELECT ONLY WCDMA ..
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Guys when I put the same sim card in my mmx c2c it works flawlessly without any problems with the network coverage. And I have tested the speed using ookla speed test and I get a speed test of 4.57mbps
jaskiratsingh said:
The location doesn't seem to have a good 3g connection; hence the behaviour. Move to a location which has good 3g connection and stable and then test.
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Sent from my Micromax A120 using XDA Free mobile app

Sachin97 said:
Hey guys I am unable to turn on 3g connection on my Android one.
I am using airtel postpaid and my plan is of rs 249.
2g works fine but when I switch to 3g the range drops and there is an R symbol. Check the images attached below. Please help.
Sent from my Micromax AQ4501 using XDA Free mobile app
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Click to collapse
Confirm from Airtel if they are providing 3G networks in your area. As far as i know they do not provide 3G services in some areas.

Ravx said:
Confirm from Airtel if they are providing 3G networks in your area. As far as i know they do not provide 3G services in some areas.
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Bro when i put the same airtel sim in my c2c the 3g works flawlessly. But for using 3g it asks me to turn on data roaming
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Sachin97 said:
Bro when i put the same airtel sim in my c2c the 3g works flawlessly. But for using 3g it asks me to turn on data roaming
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Did you got airte Sim pre installed in the phone or it old sim.
Can be a problem with Android one because they are giving free download for Six months. May be they dont want to give 3G speed.
In any case you should ask the airtel guys, you should also tru to consult Micromax customer support or Service center.

How many sims are you using?
Is ur 3g sim in sim 1 slot?
Is that sim bound to 3g connection?
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jaskiratsingh said:
How many sims are you using?
Is ur 3g sim in sim 1 slot?
Is that sim bound to 3g connection?
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Android one supports 3g on both sim slots
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