[Q] Could this be a problem with my ROM and/or kernel? - Nexus S Q&A, Help & Troubleshooting

I noticed that a lot of the time my SIM network is constantly switching between 3G and H.
I've got the latest Bugless Beast installed, along with Simple kernel 1.20.

Sounds like a radio deal. When idling, it should be on 3G. When data is being transferred, it'll switch over to H.

chronophase1 said:
Sounds like a radio deal. When idling, it should be on 3G. When data is being transferred, it'll switch over to H.
Click to expand...
Click to collapse
So how do I fix it? Do I have to flash another radio, is that it? If so, where can I get those?
Never messed with the radios, so I don't even know what to search for...

http://forum.xda-developers.com/showthread.php?t=1116884
Make sure you follow directions and flash the appropriate one for your carrier. I've never had an issue like yours so I can't say for sure if this will solve it.
Sent by pocket technology.

My understanding is that this is completely normal and working as it should.
The changing between 3g and H icons is not an indication of switching networks but just letting you know that data is flowing to and/or from your device.
i.e. when your 3G/HSPA data is idle your device will indicate "3G" and switch to "H" when it's in use.
Sent from my Nexus S using xda premium

I've found this in an other topic:
KiNG OMaR said:
Switching between 3G and H is a feature of CM. It saves on battery as a 4G signal uses up more juice than 3G. You automatically switch to H when you need a faster connection but then will change back to 3G when you don't.
Click to expand...
Click to collapse

Related

bad signal related to the radio version?

So I decided to Root, S-Off and flash Coredroid v4.7 on my Inspire, but I leave it with the stock radio (12.39.60.19P_26.06.04.06_M), but the signal seems pretty weak even on places where my Nexus one was at full strength my Inspire seems to only be able to grab 2 bars at much, and the WiFI connection seems week too, on my N1 I used to be able to get full signal from more than 20 meters, but my Inspire seems to lose it after 15 meters.
I read some posts and other blogs/forums and some attribute those issues to the radio version, so I hope someone can give me an opinion and tell me if I should Update the radio and to which version if so.
Thanks in advance.
Try this
For phone signal, try *#*#4636#*#* in the dialer. This will bring up a screen that has 5 options, I went to phone and scroll to the bottom. Under the preferred network I changed it to GSM only as its an AT&T phone anyway, I was getting 1 or 2 bars at home and was missing calls left and right. after setting this, back out and shut the phone down then restart. I have all 4 bars now. It would also eat the battery, mine was on WCDMA preferred and I think it was searching for that signal constantly. There is a screen for wifi also but there is nothing adjustable there.
wby300 said:
For phone signal, try *#*#4636#*#* in the dialer. This will bring up a screen that has 5 options, I went to phone and scroll to the bottom. Under the preferred network I changed it to GSM only as its an AT&T phone anyway, I was getting 1 or 2 bars at home and was missing calls left and right. after setting this, back out and shut the phone down then restart. I have all 4 bars now. It would also eat the battery, mine was on WCDMA preferred and I think it was searching for that signal constantly. There is a screen for wifi also but there is nothing adjustable there.
Click to expand...
Click to collapse
Odd that it would have WCDMA preferred as default. I just adjusted this as well and it improved the signal in my office. Good catch.
Gsm only does not work for me, my lame carrier runs on gsm but their mobile internet runs on their 3g so I need to connect to both. Setting it to wcdma/gsm auto seems to have improved the signal
Sent from my Desire HD using XDA App
Arcano30 said:
Setting it to wcdma/gsm auto
Click to expand...
Click to collapse
You saw this option in the phone menu after dialing *#*#4636#*#* ?
SysAdmNj said:
You saw this option in the phone menu after dialing *#*#4636#*#* ?
Click to expand...
Click to collapse
That's it.
Sent from Desire HD or Inspire 4G or whatever this thing is called via premium XDA app.
Hey all, I'm on AT&T running radio 26.06.04.06_M. Any specific recommendations? GSM/CDMA Auto (PRL) seems to give me the best service based on bars, but that doesn't necessarily mean much (I'm on an HSDPA connection with 3/4 fluctuating right now).
Also, I think I might not have HSUPA enabled with this radio, I'm only getting .56Mbps upload and around a 2.79 download (Whereas on standard 3G with my old iPhone I typically pulled around a 1.2). HSDPA is without a doubt enabled and it shows that I'm connected on that network, but is there a better radio I should try out?
SysAdmNj said:
You saw this option in the phone menu after dialing *#*#4636#*#* ?
Click to expand...
Click to collapse
I meant GSM/CDMA
Arcano30 said:
I meant GSM/CDMA
Click to expand...
Click to collapse
Thats what i thought and when I tried that it only gave me an "E" signal so I went back to how it was WCDMA
Nice just changed mine and full signal now. Thanks guys.
Sent from my Desire HD using XDA App

[Q] G2X radio broken

I have CM7 installed on my G2X and the radio turns off on its own -- it reports no signal. In order to get the radio working again, the only thing I can do is reboot my phone.
Also, to even get the radio working, I had to install "APNs Backup" from the market.
I am running android 2.3.4 on CM 7.1.0-RC1-G2x
My baseband version is:
M6600A-SCAUNTZ-2.0.9720T 1 [MAR 07 2011 16:00:00] MP:TRULGE_08.09.02R_MDM
Has anyone else had this problem? Can anyone confirm whether I have the p990 baseband instead of the p999 baseband by accident? (as reported here http://forum.xda-developers.com/showthread.php?t=1037098)
Lastly, can anyone help me flash the BIN_LGP999AT-01-V21e-310-260-JUL-15-2011+0 baseband from here:
http://forum.xda-developers.com/showthread.php?t=1037120
Specifically, I am not sure which of the two BIN files to flash, and what the correct nvflash command is (which partition does it go to?)... I can't use smartflash or any windows tools...
I have done a lot of searching and I couldn't find anything to help me out, but a few topics that are relevant are here:
http://android.modaco.com/topic/343443-lg-g2x-p-999dw-dead-flash-original-firmware-what-do-i-do/
http://forum.xda-developers.com/showthread.php?p=14159600#post14159600.
http://forum.xda-developers.com/archive/index.php/t-1248644.html
http://forum.xda-developers.com/archive/index.php/t-1247595.html
http://forum.xda-developers.com/showthread.php?t=1247595
Thanks,
Ben
What radio are you talking about?
APN is a known issue for CM7 based roms.
The baseband you have right now is a g2x baseband, though, it was the one when it came out with froyo.
Why you have to partition or repair partition on your phone if it has mo issues with partition?
Sent from my Calculator with Android.
CM7 or any 2.3.4/2.3.5 ROM for the G2x is known to have that issue. They are working on it currently. The APN's Backup App works for me tthough.
Sent from my LG-P999 using xda premium
What radio are you talking about?
Click to expand...
Click to collapse
Just the cellphone radio.
Why you have to partition or repair partition on your phone if it has mo issues with partition?
Click to expand...
Click to collapse
I am just wondering how to flash that ROM I linked to and whether it would help my issues or not.
The APN's Backup App works for me tthough.
Click to expand...
Click to collapse
FatalityBoyZahy -- do you do anything special with it? It allows me to actually get reception (I can't without it) but my radio will still drop and force a restart. Do you have any special settings on it? When the radio drops the tool no longer has the list of APNs and I have to "restore" to get them back.
I was using the experimental (RC1) ROM so I just flashed the 155 nightly. So far a few of my network issues are solved. I'll update if it's completely solved tomorrow.
Sent from my LG-P999 using XDA App
lisbakke said:
Just the cellphone radio.
I am just wondering how to flash that ROM I linked to and whether it would help my issues or not.
FatalityBoyZahy -- do you do anything special with it? It allows me to actually get reception (I can't without it) but my radio will still drop and force a restart. Do you have any special settings on it? When the radio drops the tool no longer has the list of APNs and I have to "restore" to get them back.
Click to expand...
Click to collapse
I could send you a copy of my APN's if you'd like. You'd just need to put them on the SD Card, and restore them through the app. Shoot me a PM.
I have the same issue. My phone randomly looses connection even in good signal areas. Only way to get back on the network is to toggle flight mode or reboot.
This is a known issue on all Android phones that has persisted throughout all Android versions. Google has worked on the problem and it has gotten better, but they haven't been able to exterminate the bug yet. This phenomena occurs when the 3G signal is weak and the phone switches back and forth from 3G and Edge frequently. Eventually the phone just shuts down the radio due to it switching too much. This is the Android OS commanding the radio to shut off. It is not a hardware issue at all. I have had this issue on every Android phone I have owned. Ironically, the only phone I haven't seen the issue with yet is my G2X running stock GB. The best way to alleviate the issue is to install "Network" from the Market and set the phone to 3G only. If your custom rom has a 3G only option just set it there. There is also an app called "3G only" that accomplishes the same thing. Since you are locking in 3G the phone won't switch frequently and the radio will stay on. You can do the same thing by setting it to 2G only, but who would want to do that.
Network: https://market.android.com/details?id=de.mangelow.network&feature=search_result
3G Only: https://market.android.com/details?id=com.mobnetic.only3G&feature=search_result
I think my issue is more severe than it is for you guys. Fatality - when my radio goes out, nothing but a reboot turns it back on. Not airplane mode, not toggling data on off, not changing apns. In fact, when the radio turns off any menu pertaining to the radio freezes and asks if I'd like to force quit it.
Also, I doubt that this is the long term Android bug. I've owned probably 10 or 15 android devices and I have seldom had to restart the phone because of this. For my g2x, I have to reboot literally 15 times a day.
I had two more leads I am trying.
One was that I have a 5 year old T-Mobile SIM in my g2x and I read somewhere that an old SIM could be a problem. No such luck, the radio has already turned off with a brand new SIM.
My second lead is my baseband. I have a March 7 baseband, but the two basebands online for g2x are March 17 and a later one. So, perhaps I do have the wrong baseband?
Thanks,
Ben
Sent from my LG-P999 using XDA App
Oops I forgot to respond about jboxers suggestion to limit to 3g. It didn't work, either.
The network app didn't seem to have a 3g only mode, the 3g only app didn't limit my phone to 3g (it was still 4g) it only turned data on/off and also the radio still turned off, so I tried using the phone's 2g only mode and that immediately killed the radio.
Sent from my LG-P999 using XDA App
lisbakke said:
Oops I forgot to respond about jboxers suggestion to limit to 3g. It didn't work, either.
The network app didn't seem to have a 3g only mode, the 3g only app didn't limit my phone to 3g (it was still 4g) it only turned data on/off and also the radio still turned off, so I tried using the phone's 2g only mode and that immediately killed the radio.
Sent from my LG-P999 using XDA App
Click to expand...
Click to collapse
3G and 4G on HSPA are inseperable. '3G only' will give you '4G' also.
lisbakke said:
Oops I forgot to respond about jboxers suggestion to limit to 3g. It didn't work, either.
The network app didn't seem to have a 3g only mode, the 3g only app didn't limit my phone to 3g (it was still 4g) it only turned data on/off and also the radio still turned off, so I tried using the phone's 2g only mode and that immediately killed the radio.
Sent from my LG-P999 using XDA App
Click to expand...
Click to collapse
As another poster already said on TMO 3G and 4G are the same thing. In fact, TMO doesn't have real 4G. HSDPA+ is fast but it is not true 4G. In some countries it is referred to as 3.5G and here in Thailand they are calling it 3.9G.
The network app does work. You scroll down and selected "WCDMA" only. That is 3G/4G. That will lock the radio into 3G and 4G only. The 3G only app will lock it into 3G and 4G only. There is no way to say 4G only, because it is not real 4G. If TMO had LTE that would be a different story.
Ah, that's good to know that 3g=4g on t-mobile. How come sometimes my phone says 4g and sometimes 3g?
Anyway, I wish that was the issue
Does anyone else have any ideas of what it might be?
What baseband version do you guys have on your G2x? Does anyone else have the same baseband version as I do?
lisbakke said:
Ah, that's good to know that 3g=4g on t-mobile. How come sometimes my phone says 4g and sometimes 3g?
Anyway, I wish that was the issue
Does anyone else have any ideas of what it might be?
What baseband version do you guys have on your G2x? Does anyone else have the same baseband version as I do?
Click to expand...
Click to collapse
HSDPA=3G, HSDPA+=TMO Pseudo 4G. HSDPA+ is an enchanced version of HSDPA with faster speeds but not true 4G. Most devices display an "H" but TMO had it programmed to "4G" to pretend they offer 4G service. Both are versions of WCDMA, which is what GSM 3G is.
I found this thread that has another kernel that supposedly fixes the APN. I haven't had my kernel drop yet, but it's only been 10 minutes Here's a link to the kernel:
http://forum.xda-developers.com/showthread.php?t=1229932
For install instructions, read the instructions in the linked code.google.com issue tracker:
http://code.google.com/p/cyanogenmo...on Model Network Owner Summary Stars Priority
I used:
adb push boot.img /sdcard/ && adb shell dd if=/sdcard/boot.img of=/dev/block/mmcblk0p5 && adb reboot
and everything worked fine (don't forget to clear dalvik cache on reboot).
To run the script he linked to, download ScriptManager from the app store.
It fixed my radio! Though it did kill wifi.
Sent from my LG-P999 using XDA App

[SOLVED] 3G data connection hiccups.

Hi there,
I'm using Revolution HD 3.6.1 with its radio and relative RIL (which becomes with the rom by default). Obviously I have S-OFFed and rooted.
I'm experiencing some hiccups in 3G data connections. I don't know if it's due to the carrier (Wind Italia) or something in the phone (maybe the radio doesn't support it at all?). I'm in Europe, precisely in Italy.
Maybe should use an european version of radio? Or what?
In detail:
I activate data connection. The phone shows 3G before, and quickly goes in H (HDSPA). Then I use many apps that needs internet connection. Within a short time it goes again in 3G and i have absolutely NO data connections. After a delay of 5-10 sec it goes again in HDSPA and everything works. When it goes again in 3G i have no data, then again H and data working.
What's the problem?
EDIT: Problem solved! See in this post.
P.s.: Sorry for my bad english
I was going to ask about something similar to this, so rather than start a thread I will post it here. I too am running the 3.6.1 with its radio, S-OFF, & rooted.
What I am seeing on boot up is the standard progressive upgrades of data networks (just bars, then 2G, then 3G, finally H). The H only stays for a few seconds then drops to 3G and basically stays like that. However, as soon as I open an internet requiring application, it jumps to show H and typically stays that way as long as a data connection is active. My Speed Test results show its 4G speeds (same as stock ROM and radio) when its showing the H, so obviously its working, I'm just wondering if its intentional that the display only shows 3G? Or maybe its set so the ROM "relaxes" on 3G, but switches to 4G when data is actually being sent/received?
~T.J.
Maybe you used to have a 'background' app updating constantly.
The G, 3G and H usually depends on the signal in your area, the H is usually for high data transfer. If you're not using the internet,downloading anything or updating anything on your phone, then why would you need it on all the time?
3g is usually the norm, so I wouldn't worry!
For my issue, my stock ROM showed me what was available in the areas as I moved around, including showing 4G all the time if I was in a coverage area (which pretty much everywhere around me is). If I moved out of the 4G area for instance, it would drop to show me 3G.
This one just shows 3G all the time, even when I'm in areas I KNOW are 4G; UNTIL I use the data connection, then it switches and shows the H. I know its silly, but I liked actually gauging my providers service by being able to see what kinds of connections were available in various areas.
The fact I have to actually open the browser or run a speed test to see if 4G (H in this case) is available in that area is a little odd to me, why doesn't it just show the connection that's available?
~T.J.
Guys, I found a solution to my problem, googling around. That's awesome.
FYI I'll post here:
1. dial *#*#4636#*#*
2. Go to phone information
3. Toggle ciphering so it's off
4. Turn off radio
5. Turn on radio
6. Toggle ciphering back on
It seems to be working to me. An half hour without hiccups till now.
I have had this problem ever since my hd2 two years ago. I thought it was normal. I'm about to try the fix. If it fixes it you are a life saver.
Sent from my HTC Sensation 4G using XDA App
Aww man same thing. Maybe its supposed to be like this.
Basically for me its for example on the xda app when ill refresh something it will always say processing as soon as the 3g symbol turns to h with both arrows on simutaneously.
Maybe that's how its supposed to be idk.
Sent from my HTC Sensation 4G using XDA App
Glad its not only me!!!! This is a problem. I am in the U.S and i have it also. Ive been trying to figure it out. I have radio 10.15.9035.2_2 and bricked kernel 1.2 i can not figure out if this started happening from when i flashed the lastest radio or when i went with bricked kernel above 0.91 i am still trying to figure it out. *#*# 4636#*#* is only a brief temp fix i know that much. But lets try and put our heads together and get to the bottom of it. Cause its been slowly pissing me off daily. Let me know what you guys hear. And i will keep you updated as well. Please pm me if you here anything on the issue. Thanks!!!!!
Sent from my HTC Sensation Z710e
Xx12thANG3LxX said:
Glad its not only me!!!! This is a problem. I am in the U.S and i have it also. Ive been trying to figure it out. I have radio 10.15.9035.2_2 and bricked kernel 1.2 i can not figure out if this started happening from when i flashed the lastest radio or when i went with bricked kernel above 0.91 i am still trying to figure it out. *#*# 4636#*#* is only a brief temp fix i know that much. But lets try and put our heads together and get to the bottom of it. Cause its been slowly pissing me off daily. Let me know what you guys hear. And i will keep you updated as well. Please pm me if you here anything on the issue. Thanks!!!!!
Sent from my HTC Sensation Z710e
Click to expand...
Click to collapse
Only a brief temp fix? Are you sure?
I'm not having the same problem as before, now. I hope it remains still as it is.

Do custom ROMs allow for 42mbps?

Do custom ROMs limit the HSPA speed of our phone? Is there some network check where if you're not running on T-Mobile's ROM, you won't be able to access the full speed HSPA+ 42mbps network?
rom won't affect that
have seen a lot of posts with folks getting plus 20mb in the 42mb areas--wish I lived in one--
Do you think the buil.prop settings have anything to do with it?
I remember getting 15mbps a few months back from my home, now the fastest I can get is around 5 :/
sounds like something changed, what do you get in other areas compared to before
some roms don't do as well as others with some folks. but, I never had a rom make that kind of difference.
don't know about buildprop--I doubt it
try the last rom you were on with good speeds. also, maybe the latest radio
I haven't been able to get high speeds like that anywhere really.
What I've noticed is that since switching from the stock ROM, my indicator switches frequently from "H" to "3G". It'll switch back and fourth every 5-10 seconds when I'm using data. This happens with CM9 and CM10 and the modified Sense ROM that I'm running now. I live in an area with excellent 4G coverage and I don't understand why this switching is occurring now when it wasn't back on the stock ROM (and I know the stock ROM had separate indicators for 4G/H and 3G). It doesn't make any sense to me.
the switching is common for a lot of people and is addressed on several threads
if your hboot is under .13 you can flash a newer radio
gotta call it a nite
I don't know if the following setting remains after rooting and installing a custom ROM but check it out and test the different settings:
Settings>Mobile network>Network mode>WCDMA only versus GSM/WCDMA auto
Are you in an HSPA+42 area? T-Mobile only has that in a few markets..
Sent from my SGH-T999
angr1112 said:
I don't know if the following setting remains after rooting and installing a custom ROM but check it out and test the different settings:
Settings>Mobile network>Network mode>WCDMA only versus GSM/WCDMA auto
Click to expand...
Click to collapse
I like my phone switching to edge when HSPA signal is weak because then I still get service and it doesn't kill my battery life. I don't think this would matter because 3G and 4G are on the same bands :/ Which is why I don't understand why it switches....
joshnichols189 said:
Are you in an HSPA+42 area? T-Mobile only has that in a few markets..
Sent from my SGH-T999
Click to expand...
Click to collapse
I am in the Salt Lake City area, which does have HSPA+42
I'll see what I can do with radio flashing. If I get something to work I'll post a guide on it.
I did some tweaks on my phone and saw positive results, I posted a guide for others here.

[Q] CM9 Data Network wont go to 4G

My phone was working fine after flashing it to GB Rom I was getting 4G data on it. After Flashing to CM9 I only get 3G, My BT works fine everything seems to work great the ROM is awesome I just cant get 4G any help would be great!
Check your modem in 'About Phone'. LB6 only shows 3G but you get 4G speeds. Other CM9 modems will show H instead of 4G.
Modem Version
lumin30 said:
Check your modem in 'About Phone'. LB6 only shows 3G but you get 4G speeds. Other CM9 modems will show H instead of 4G.
Click to expand...
Click to collapse
I looked under About Phone and there is nothing that shows the modem version, I did try flashing several modems though. I never had one show "H"
always 3G, What modem would be best to run? I appreciate all your input, still learning!
Modem is baseband version.
It says T959VUVKJ6 Also says under status Mobile Network Type EDGE 2 is that correct?
Silly question here. You don't happen to have use 2g connection checked or anything silly like that. Data roaming and such also checked.?
Sent from my Nook Tablet using xda app-developers app
champ1919 said:
Silly question here. You don't happen to have use 2g connection checked or anything silly like that. Data roaming and such also checked.?
Sent from my Nook Tablet using xda app-developers app
Click to expand...
Click to collapse
Not a silly question, I realized that the data connection for use only 2G networks was checked. I unchecked it and reset the data connection and there you go 4G. I appreciate all your help. I do have one more question. It seems every time my phone is rebooted the 2G connection sets by default automatically, can I stop that so I dont have to turn it off and reset the data connection every time?
kpeebler said:
Not a silly question, I realized that the data connection for use only 2G networks was checked. I unchecked it and reset the data connection and there you go 4G. I appreciate all your help. I do have one more question. It seems every time my phone is rebooted the 2G connection sets by default automatically, can I stop that so I dont have to turn it off and reset the data connection every time?
Click to expand...
Click to collapse
I have the same situation and would like to hear how you resolve it. The check mark for 2 g keeps returning.
--Charley
Three major possibilities:
1) The ROM you're using might have it hardcoded. Change to a different ROM.
2) You might be using a battery saving program that sets it to save power. Remove the program or change its settings.
3) Something else.

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