Cell Network not working on Cyan 9/9.2 - Galaxy S II Q&A, Help & Troubleshooting

Recently I upgraded to cyanogenmod 9 from 7.2 and noticed that the phone was not detecting the GSM phone network. Then using clockworkmod I installed another modem and the phone used to detect the network. But the phone used to lose network on restarting and again I install another modem and it starts working again. My phone had no issues in 7.2 and now I have reverted back to 7.2. Can someone help me on why this is happening. Thanks for your help.

Try different modems
Peace
Hit Thanks & It will Disappear
Sent from S II Running Official ICS 4.0.4 with Siyah 4.1 [/size]

Have you done a factory reset before updating CM7.2 to CM9.1?

Omaxe said:
Try different modems
Peace
Hit Thanks & It will Disappear
Sent from S II Running Official ICS 4.0.4 with Siyah 4.1 [/size]
Click to expand...
Click to collapse
I did try various modems but on a restart I would lose network again. This started happening only after upgrade. After restoring the backup to 7.2 the problem dissappeared

przemcio510 said:
Have you done a factory reset before updating CM7.2 to CM9.1?
Click to expand...
Click to collapse
No I did not

sminons said:
No I did not
Click to expand...
Click to collapse
Then flash ROM again...
Before qnd after flashing reset/ format system data...
Format dalvik cache and everything else
Peace
Hit Thanks & It will Disappear
Sent from S II Running Official ICS 4.0.4 with Siyah 4.1 [/size]

Factory reset after changing Android version is necessary.
On CM7.2, do 3-wipe-combo (/system, /cache, /data)
Flash CM9.1 and reboot.
There is no need to wipe data after flashing.

Upgraded to cyan 9.1 and did a factory reset. Still experiencing the problem. I am trying out the various modems with mixed results.
My doubt is if a particular modem is working, why does the signal drop completely on restart?
Sent from my GT-I9100 using xda app-developers app

sminons said:
Upgraded to cyan 9.1 and did a factory reset. Still experiencing the problem. I am trying out the various modems with mixed results.
My doubt is if a particular modem is working, why does the signal drop completely on restart?
Sent from my GT-I9100 using xda app-developers app
Click to expand...
Click to collapse
use 'GetRil' app from stores and match the RIL with the modem ur using and see

Sun90 said:
use 'GetRil' app from stores and match the RIL with the modem ur using and see
Click to expand...
Click to collapse
Looks like it is OK for the moment.

Still doesn't work. The phone loses network on reboot .

Related

phone crashed

hi friends
here are my details of rooted samsung s2 phone
android version 4.0.3
baseband version I9100XXLPQ
kernel version 3.0.15-I9100XXLPQ-CL223505
today it just hanged and started taking reboots on its own theni had to do a factory reset to get it back here
please tell me what went wrong?
Really? A new thread in Development just because your phone crashed and rebooted?
Congrats, you are one more in millions of people whose phone crashed and rebooted...
I don't even want to put the smiley face I usually put in all my posts, but...
ankscorek said:
hi friends
here are my details of rooted samsung s2 phone
android version 4.0.3
baseband version I9100XXLPQ
kernel version 3.0.15-I9100XXLPQ-CL223505
today it just hanged and started taking reboots on its own theni had to do a factory reset to get it back here
please tell me what went wrong?
Click to expand...
Click to collapse
Meh, could've been anything. Since it is working now, I suggest you just leave it. Also, post this kind of thing in the general section.
no need to be sarcastic about the wrong section..
but is it that i need to change the firmware or something?
can u point me to a solution or a bug or something..
For one factory reset fixed it means you know what you did that crashed your phone.
Second, get rid of lpq and flash something newer, but with full wipe before and after.
User dial code to wipe, or better cwm format cache data system dalvik.
ok please suggest me something new to flash...
all pointers are welcome
ankscorek said:
ok please suggest me something new to flash...
all pointers are welcome
Click to expand...
Click to collapse
Rootbox. Make sure you do a full wipe when you flash though.
Sent from my GT-I9100 using xda premium
thanx
but which is the official xda thread that is supporting the leaked firmwares
Did you do a factory rest, wiped dalvik cache and cleared cache before installing the ROM?
ankscorek said:
thanx
but which is the official xda thread that is supporting the leaked firmwares
Click to expand...
Click to collapse
What do you mean??
Sent from my GT-P7510 using xda premium
Not technically crash..the phone was rebooting on its own continuously......i tried to upload the screenshot but it says incorrect file extension
Sent from my GT-I9100 using XDA
Try
Www.sammobile.com
Checkfus downloader

ParanoidAndroid 1.6 problems?

I recently installed ParanoidAndroid 1.6 and got no sound + microphone when calling/called, is this a common problem or did i do something wrong?
i did format data and cache and still got that problem... is there a solution to this problem?
Make sure you're on modem BLFB or newer.
Older modems are NOT compatible with Cyanogenmod.
d4fseeker said:
Make sure you're on modem BLFB or newer.
Older modems are NOT compatible with Cyanogenmod.
Click to expand...
Click to collapse
How do i know if im on a BLFB modem? Thanks in advance.
Go to Settings->About phone and report the value of "Baseband version".
I recommend flashing DXLF3
mattish.91 said:
I recently installed ParanoidAndroid 1.6 and got no sound + microphone when calling/called, is this a common problem or did i do something wrong?
i did format data and cache and still got that problem... is there a solution to this problem?
Click to expand...
Click to collapse
if new modem does bot work,then turn on lockscreen via settings/sounds
Sent from my GT-I9300 using Tapatalk 2

Mobile data not working?

Hi, i'm currently using the outright i9300 galaxy s3 with the Virgin mobile network, my mobile data was working fine until i flashed the recently leaked 4.1.1 firmwares, now when I try to use the mobile data it just says mobile data is not connected, please help.
thanks in advance
Henry918 said:
Hi, i'm currently using the outright i9300 galaxy s3 with the Virgin mobile network, my mobile data was working fine until i flashed the recently leaked 4.1.1 firmwares, now when I try to use the mobile data it just says mobile data is not connected, please help.
thanks in advance
Click to expand...
Click to collapse
Flash your original modem .
Did you full wipe before reverting to ICS .
jje
Check your APN settings before you go flashing any modems. Google for your provider's defaults if you aren't sure.
Me too with French carrier.
ICS modem are compatible with JB rom? i'm not sure...
Tumeconnais said:
Me too with French carrier.
ICS modem are compatible with JB rom? i'm not sure...
Click to expand...
Click to collapse
No, you will need a matching version.ICS for ICS and JB for JB.
Thank.
but all modem (LH4/5/6/7) doesn't work.
Work, but disconnect all time, 3G->H->H+ and only when is on H+ internet work on 3G and H, doesn' work.
Tumeconnais said:
Me too with French carrier.
ICS modem are compatible with JB rom? i'm not sure...
Click to expand...
Click to collapse
Some ICS are for me better than current JB modems .
jje
It is really important, that you made a clean install. Wipe everything including system, data, etc.
This was my reason for bad signal etc.
If something is left from old firmwares....you know what I mean
i know, i have wiped everything, but same problem, Maybe LH8 modem is different.
i think i come back on LH1.
Did you make a backup before flashing?
Yes with go backup. Why? I'm in LH1, and i have the same problem. You think it's my backup?
Edit : no, internet work, just my phone change all the time H+->3g->H. But in LH7, the phone take most time to change in H+, now, in LH1, when i'm using internet my phone change immediatly network in H+. It's weird.
I don't understand why my phone doesn't stay in H+ alla time, i have full bar of network.
Sorry i'm french if you don't understand what i'm saying.
Sent from my GT-I9300 using xda app-developers app
JJEgan said:
Flash your original modem .
Did you full wipe before reverting to ICS .
jje
Click to expand...
Click to collapse
How can i find out what my original modem is?
Also, how can i do a full wipe? i normally just do the wipe in CWM recovery

[Q] Troubleshoot my Phone

I was switching my phone off and then on again when suddenly all the icons and customization I made went back to factory default. My installed apps are still there but they will crash once I open them.
Is there any way to find out what is the issue and how to resolve this? My phone is rooted by the way but I have been using for a year with no problems.
Thanks!
plexxor said:
I was switching my phone off and then on again when suddenly all the icons and customization I made went back to factory default. My installed apps are still there but they will crash once I open them.
Is there any way to find out what is the issue and how to resolve this? My phone is rooted by the way but I have been using for a year with no problems.
Thanks!
Click to expand...
Click to collapse
what are you running on your phone??? (rom,kernel etc)
Current kernel: CF-Root 4.0 (version [email protected]#2)
plexxor said:
Current kernel: CF-Root 4.0 (version [email protected]#2)
Click to expand...
Click to collapse
Have you tried wipe/reset? if no help flash back to stock and root again see below for rooting link. IF THATS 4.0.4 ics your running WATCH OUT FOR THE BRICK BUG!!
good luck.
gaosphappy said:
Have you tried wipe/reset? if no help flash back to stock and root again see below for rooting link. IF THATS 4.0.4 ics your running WATCH OUT FOR THE BRICK BUG!!
good luck.
Click to expand...
Click to collapse
2.3.6 is GB, not ICS.
Sent from my digital submersible hovercraft.
gaosphappy said:
Have you tried wipe/reset? if no help flash back to stock and root again see below for rooting link. IF THATS 4.0.4 ics your running WATCH OUT FOR THE BRICK BUG!!
good luck.
Click to expand...
Click to collapse
Is there a guide for wipe/reset? Does this mean the phone will go back to the factory 'unrooted' state?
Any help is appreciated as I don't want to mess things up further, thank you!
If you fullwipe you will lose all data on your phone exept for internal or external sd. Also this will not affect root.
This is safe exept if you're running 4.0.4, than you first have to flash a custom kernel who has the brickbug patched.
Sent from my gt-9100 powered by dorimanx
You can thank me if i helped you
Sorry for asking but how do I perform a wipe?
Can I choose the option factory data reset under the Settings?
Yes thats the one
Sent from my gt-9100 powered by dorimanx
You can thank me if i helped you
plexxor said:
Can I choose the option factory data reset under the Settings?
Click to expand...
Click to collapse
Yes
Sent from my GT-I9100 using xda app-developers app

[Q] how can i downgrade to 4.1.2?

I have samsung galaxy s2 i9100. and whenever i switched to 4.2.2 with CM rom. 3G didnt work at all. i posted a thread but no answers. so i dont know how to downgrade a version.i tried flashing with odin but didnt work. so what are the steps that i need to downgrade?
.
Fractrox said:
I have samsung galaxy s2 i9100. and whenever i switched to 4.2.2 with CM rom. 3G didnt work at all. i posted a thread but no answers. so i dont know how to downgrade a version.i tried flashing with odin but didnt work. so what are the steps that i need to downgrade?
.
Click to expand...
Click to collapse
download neatrom lite 4.7.zip and format data/system/preload/cache partitions in recovery. and flash the neatrom zip from recovery and reboot. it includes modem, kernel and rom.
http://d-h.st/UIK here is the link.
my two cents
Fractrox said:
I have samsung galaxy s2 i9100. and whenever i switched to 4.2.2 with CM rom. 3G didnt work at all. i posted a thread but no answers. so i dont know how to downgrade a version.i tried flashing with odin but didnt work. so what are the steps that i need to downgrade?
.
Click to expand...
Click to collapse
Hi Fractrox,
Did you do a factory reset after flashing CM rom? If yes, try adding the APNs again under
Settings-> More-> Mobile Networks -> Access Point Names, followed by a reboot.
For downgrading , you can find stock rom from sammobile for s2. The latest released is 4.1.2.
Check your location and flash the one for your country so that you get the correct modem file which will help fixing the 3G connection issues.
Hope it helps.
Cheers,
Maddy
i was going to say flash a stock rom via odin, but he said he has had no luck with odin?
and he says he is running cm10.1 already so i know he has cwm, thats why i said neatrom lite...as its less bloated and is rooted, with philz kernel etc,
coolmaddy007 said:
Hi Fractrox,
Did you do a factory reset after flashing CM rom? If yes, try adding the APNs again under
Settings-> More-> Mobile Networks -> Access Point Names, followed by a reboot.
For downgrading , you can find stock rom from sammobile for s2. The latest released is 4.1.2.
Check your location and flash the one for your country so that you get the correct modem file which will help fixing the 3G connection issues.
Hope it helps.
Cheers,
Maddy
Click to expand...
Click to collapse
thanks but that didnt work so i geuss im going to downgrade to 4.1.2 with neatrom
Fractrox said:
thanks but that didnt work so i geuss im going to downgrade to 4.1.2 with neatrom
Click to expand...
Click to collapse
i have downgraded from cm10.1 to neatrom many times.
good luck.
just remember to format system/preload/cache and data..and then flash neatrom lite from your sd card. let me know if you need any more help.
i'll be on xda for about another hour, then i have to go.
Didn't work. I downgraded but there was no 3G or ROM only kernel. and why does 3G works with stock ROM as the other guy said?
Sent from my GT-I9100 using xda app-developers app

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