Hey,
Two SGS3 phones in the household. One's rooted with CleanROM and one's unrooted stock. Our phones doesn't go to 3G often. But when they do, they're pretty much useless. Browsing is extremely slow. The other day I tried to send a text with a picture, and it took over five minutes to send. Tried speedtest.net, and got sub dialup download speeds and almost no upload at all. I don't think that the 3G in this area is bad. I have friends with 3G phones that browse right along just fine.
Is there something that makes these phones operate so poorly in 3G? Is there anything that can be done?
Since you're rooted on one I imagine you can root the one having problems, I'd say root and flash a new modem that might solve your problems
Sent from my SCH-I605 using xda app-developers app
Robster180 said:
Since you're rooted on one I imagine you can root the one having problems, I'd say root and flash a new modem that might solve your problems
Sent from my SCH-I605 using xda app-developers app
Click to expand...
Click to collapse
One's rooted with CleanROM and VRBLK1 radio. The other one is unrooted and has whatever radio came with the last updated before this one that just came out. Each one is just as useless as the other.
Try different modems. Assuming that doesn't work, come back here and report which ones you tried with what result.
Also, I rarely get stuck under 3G, but when I do, going under More settings/mobile networks/network mode, change to GSM then back to Global. That pops me back onto 4G every time without fail.
Sent from my SCH-I535 using xda app-developers app
Are you in an area with 3g only, if so when I'm in such an area I use android tuner free or pro: then goto battery manager, on status tab bottom of page see tests, then device info, this brings up phone info page. scroll down and change to cdma auto prl. Then when back in 4g area change in regular settings to normal. Works great for me. If not it tries to find 4g constantly and with weak signal switches back and forth or stays on 3g with slow speeds.
Also like stated earlier try different modems and rpms, flash in pairs has worked best for me. And newest isn't always the best. I'm in Pensacola and newest is slower than mb1 or may is faster and better signal than md3.But each device is different. Good luck
Cruzin the Galaxy SIII via SynergyRom/Anthrax kernels
Thanks. I'm on VRBLK1 right now, because I was told that it was the best one. But I doubt that my RPM matches. I read somewhere around here that RPM doesn't really matter. Wife's phone is on the update prior to this one that just came out, unrooted. So she's using whatever radio/rpm came with that.
I'm in a 4G area, and it's pretty rare that I end up on 3G. There are a couple of spotty areas close by that I always switch over. When I do, 1X is actually faster.
Can someone please point me to the location of the various radios that I can try. At least I can flash the RPM that goes with the one that I'm using. See if that makes a difference. I once had a bunch of them on my memory card, but that card died a while ago, and I lost everything.
Thanks!
There are a few things that you need to know before using the latest aio (all in one) radio files.
If you are running a 4.2 camera you shouldn't have any trouble, but the kernel you use can and will make a difference. If you flash the latest aio and camera doesn't work don't freak out, there are three options that I know of.
1 flash back to previous aio,
2 there is an aio with latest modem,rpm,and older tz (the tz is what messes up camera)
3 flash kernel that works with latest update
There is a thread on here about modems and it should be under android development thread probably just below pinned threads.
Cruzin the Galaxy SIII via SynergyRom/Anthrax kernels
I was wondering if my method getting you back onto 4g by switching to GSM then back to global worked for you? Like I said it never failed me.
Sent from my SCH-I605 using xda app-developers app
Related
Ok, so i just got my droid charge. First thing i did was brick it, restore it, boot loop it, restore it again, root it and then installed gummycharge..lol.
any way, i saw that there was a new modem out, EP3HA http://forum.xda-developers.com/showthread.php?t=1293175&page=4, and i installed it. At first i did not notice anything bad, 4g worked find in my house, but now that i am at work, i cannot connect to 4g at all. My thunderbolt had no issues with 4g, even got it in a small server room.
Is there a better radio i can install to get my 4g back at work? right now im sitting at -103 1 bar, 3g My thunderbolt had a 3 bar 4g
thanks
Some people who have had modem issues with EP*** in general have claimed to be running more stable after reverting back to EE4. You might as well switch out and test the various modems with your setup as YMMV.
Sent from my Droid Charge using XDA App
I have been having this problem with both of my Nexus S 4G ever since I got them 2 months ago.
My data drops out frequently and takes a while to get back up. If I have 4G enabled, then I have to manually reconnect it as it will not do it on it's own. This happens inside AND outside. Driving down the road or just standing in one spot.
I've tried all of the radios (basebands) and about 7 different ROMs and versions.
I've refreshed the data profile, PRL, and even tried the roaming Verizon PRL and Hybrid PRL.
Gone back to stock and tried everything from scratch. Still the same problem.
Dallas/Fort Worth Area
Network: Sprint
Baseband: D720SPRKE1
PRL Version: P:40447
I contacted Sprint and they just told me to update the profile & PRL.....
Any suggestions?
I'm not familiar with the CDMA nexus s, but are you able to change APN's? At one point I'd be able to connect to 3g (I have an I9020A), but every minute or so it would drop, so I fixed up the APN's for my carrier.
iv had a few data issues
forcing PRL and account updates has fixed it a couple of times
i'v bought used phones that iv had
to have sprint force update
im on LC1
[altho i cant tell any significant difference here]
and my prl is 61086
[a business account]
im currently on slim
make sure your mobile network
is set to roam
is not set to home only
Am I the only one with this problem? As I'm typing this I lost data but still had 3 bars. I never drop calls but only data.
Help please. This is driving me nuts.
Sent from my Nexus S 4G using xda premium
andrewddickey said:
Am I the only one with this problem?
Click to expand...
Click to collapse
no
i go thru periods of it acting bizarre
try disabling wifi and reboot
this USUALLY fixes mine till wifi is re-enabled
and i drop the sprint connection a few times
riding around
it then fails to re-acquire the IP address.
look in your status and see if you still have an IP
when your data fails
fwiw
I never use Wi-Fi. Ever.
Happens while using both 3G and 4G.
Sent from my Nexus S 4G using xda premium
4G is worthless here...
i dont even bother with the switch
does it do the same thing if you disable 4G?
I almost always have to use 4G (if possible) since 3G speeds are slower than dial-up.
I've tried rebooting and leaving 4G off, and still the same. Even tried going back to Gingerbread.
Sent from my Nexus S 4G using xda premium
andrewddickey said:
I almost always have to use 4G (if possible) since 3G speeds are slower than dial-up.
I've tried rebooting and leaving 4G off, and still the same. Even tried going back to Gingerbread.
Sent from my Nexus S 4G using xda premium
Click to expand...
Click to collapse
If going back to GB doesnt help, maybe it is hardware related?
---===:::Greetzz, jojoost:::===---
Sent from my iPad using Tapatalk HD
This is happening with BOTH of my NS4G.
Possibility that BOTH have hardware defects?
Do a profile and prl update
Hit the thanks button if i helped
R0M CHEF said:
Do a profile and prl update
Hit the thanks button if i helped
Click to expand...
Click to collapse
In the original post, I stated that was one of the things I've done.
have you checked to see if you have an IP address
when data fails?
mine shows "unavailable" when it's wonky
and wont re-aquire till i reboot.
i'v seen this on 2 phones
off and on including on oem 2.3.7
fwiw
andrewddickey said:
Am I the only one with this problem?
Click to expand...
Click to collapse
I have the same problems. From what I understand, its a problem with the hardware. I can confirm that's probably the case, because I've tried many different ROMs (stock, cm, etc...) and they all have the same radio issues (3g/4g and wifi)...
I have an NS4G in the DFW area and haven't seen the issues you're reporting. I'm currently on 4.0.4 with D720SPRLC1 baseband. Maybe I'm just lucky and have a good signal at work and home. It's very rare that I find an area of DFW where I don't get any data signal at all. Not sure what to suggest.
I get random drops too and i hate it. My 3g speeds are fairly good even above 1 mbps. Highest i ever got on 3g was 1.51 mbps
Mine will lose data if I'm in a coverage free area for an extended period of time, when I'm back in range 3g icon will show up just never reconnect. A reboot fixes it
Certain Areas
There are certain areas where I live that data just disappears. Although this is just a network thing I believe. It's weird though when I am driving it's like a 10 second drop and then all is good. Hope you get a solid fix!:victory:
Backup 4g Partition
REMOVED - was a bad idea.
I've actually replaced BOTH of the phones with brand new NS4Gs and they shipped with ICS.
Still the same problem.
This is driving me nuts. I was driving and trying to download Maps for the new phone from the Play Store and it took 6 tries. Kept saying RETRY.
What I've come to believe is happening is:
When 4G connects, 3G disconnects. When 4G drops (which is does frequently), 3G has to reconnect.
***Is there a way to keep 3G "on" in the background while 4G is connected?*** Maybe a way for the radio to transition back and forth?
A Little Background. When I first got my device I used the kexec method to flash a unofficial CM mod and lost my IMEI. I manually injected it back into my phone and flashed back to stock.
Now, I constantly lose my data connection for 15-45 seconds all the time. It happens intermentantly and is driving me nuts. Is there any way to fix this?
Thanks in advance.
Try flashing another modem, for me when I had the G1 modem it dropped data quite a bit. But try all the ones you're not using because some modems seem to work better for other people.
Sent from my Galaxy S III
Change apn from ehprd to lte and it will change you're signal from enhanced 3g to evdo rev a witch Is standard 3g....
I don't have lte near me and has tremendously helped my 3g signal to stay at the signal level my iPhone 4s is being a pure 3g phone....
Sent from my SCH-I535 using Tapatalk 2
Thanks for the feedback. I will search the forums for direction on how to do these things.
So when I first got my phone the APN was set to EHRPD, and I just checked (1 week later) and it's now set to LTE and I never touched it and I am running full virgin stock out of the box... is this normal? Does it auto-switch?
I hear the modem might be an issue for a little while...hopefully devs get it fixed soon.
So are people having better luck on the F2 modem or the G1?
After reading the forums in more depth I guess lots of people are having this problem.
Well I'm on the latest CM nightly (CM 10.1 -20130312) and I just came from CM 10. I tried CM 10.1 before but I had little to no signal and I've decided to give the latest nightly a chance and well, I still have the same problems as before. I flashed the 3.18 radio on it and it literally made NO difference at all. I hate the AT&T variant of the phone. On the CM 10 version I didn't have this problem but there were times that I'd go half an hour to a full hour without getting any texts and then they'll all come in at once (and I know its no coincidence because some of those messages contain people wondering why I haven't replied yet). So can anyone help me with this problem please?? I really like CM 10.1 but not having any mobile data and an even worse signal is a REAL deal breaker for me.
I was having the same issue until I went into settings and changed it to GSM/WCDMA.
Sent from my HTC One X using xda premium
ItsKarriD said:
Well I'm on the latest CM nightly (CM 10.1 -20130312) and I just came from CM 10. I tried CM 10.1 before but I had little to no signal and I've decided to give the latest nightly a chance and well, I still have the same problems as before. I flashed the 3.18 radio on it and it literally made NO difference at all. I hate the AT&T variant of the phone. On the CM 10 version I didn't have this problem but there were times that I'd go half an hour to a full hour without getting any texts and then they'll all come in at once (and I know its no coincidence because some of those messages contain people wondering why I haven't replied yet). So can anyone help me with this problem please?? I really like CM 10.1 but not having any mobile data and an even worse signal is a REAL deal breaker for me.
Click to expand...
Click to collapse
I used to be tech support for att. Obvious question: has this happen before? Now to put my xda hat on. Did you change APN settings? Is this the only rom you flashes? Also call att (611) and have them cancel registration. This basically kicks you off the network and bring you back on. Sim cards are not the issue as the are unable to determine signal strength. Hope you get it fixed.
Sent from my Carbon-ize Evita using xda-developers app
I think it has something to do with the 3.18 radio. I never had problems until flashing it. I have tried multiple roms. Sense based and aosp. It happens on both although it seems to be worse on aosp. I went out of state and lost signal completely while running the latest Chameleon. I went into settings and as soon as I stopped it from searching for LTE it went to full signal. Maybe a tower upgrade issue? 3.18 radio issue? I guess it's something for devs to look into. I know not all towers are the same. 3.18 maybe conflicting with the area he is in. Somebody will get it figured out lol.
Sent from my HTC One X using xda premium
Venomtester said:
I think it has something to do with the 3.18 radio. I never had problems until flashing it. I have tried multiple roms. Sense based and aosp. It happens on both although it seems to be worse on aosp. I went out of state and lost signal completely while running the latest Chameleon. I went into settings and as soon as I stopped it from searching for LTE it went to full signal. Maybe a tower upgrade issue? 3.18 radio issue? I guess it's something for devs to look into. I know not all towers are the same. 3.18 maybe conflicting with the area he is in. Somebody will get it figured out lol.
Sent from my HTC One X using xda premium
Click to expand...
Click to collapse
That's just weird. I flashed 3.18, and still get the same coverage (4-5 bars, 6mbps data). I don't see how it can effect you. The device is dual HSPA+/LTE. So if the device cannot find LTE, it will always back (circuit switch fall back). Even when I went to an LTE area (Nashville, TN), it still work perfectly. Could be something up with the physical radio inside of the phone. The LTE towers are suppose to be backwards compatible, but we know how companies can be. If your device is working in one area, and not the other, then it is a tower issue. Even though AT&T may find that their towers are ok, it is a tower issue, and there is no doubt around that. Now if it just gives you random coverage, no matter where you are, then it is the phone itself.
Having the same issue on CM. Just tried changing to WCDMA and my signal doubled. That is weird but thanks you guys.
I was stock unrooted and i got the ota. now my data handoffs are weird. in my house were i get 3 bars of 4g lte (-100ish dbm) i now have 2 bars of 3g and it switches between 3g and 4g. it didn't do this before. i then odined back and installed the ota again and same issue. Any suggestions?
New radios won't be the same for everyone. The new one may hold 4g for somebody else, but knock you down to 3g all the time. It all depends on your location. I say give it a few days to see how it is, then go back to the olds radios (MB1).
Sent from my SCH-I535 using Tapatalk 4 Beta
Interestingly enough, every time I receive an OTA, I factory reset for a fresh experience ( placebo or not, it feels like dirty flashing and never seems to run as quick or as smooth). However, every time I did so on MD3, and I tried 3 times, after the reset my data would barely work. Had a signal, showed 4G, just never loaded or indicated data transfer most of the time I tried to do anything.
I wanted the update obviously, so I ended up Odin-ing back and flashing the recovery-based version. Still using LK3 and its faster and more responsive than MB1 ever has been for me. Just food for thought.
Edit: LK3 modem vs MB1 modem
Sent from my SCH-I535 using xda app-developers app