[Q] No service after rooted and installed Cyanogenmod on Galaxy s2 - Galaxy S II Q&A, Help & Troubleshooting

Hi
I really hope there are some people, who can help me
I have rooted my Galaxy s2 and installed cyanogenmod by rom manager, now I have no service on my phone.
I am not that expert in custom rom and rooting, so I hope some people can help me with this issue.
1000 X thanks in advance.
brgds.
The_84 / from Denmark

I think there are a lot of problems with Cyanogen on Galaxy sII. Did you back up your previous rom?
Try a different rom.
Or you can faf around with radio's it sounds like the radio software is not installed or wrong.
Plus go to the Cyanogen Forum for help just google it...

Hi
I am bit scared to use randomly solution from google, hope that someone know exact how to fix this problem on galaxy s2.
I think is something about installation of the radio software as u said.
Cyanogenmod should work proberly with the stable version.
Hope someone know how to, fix it ?

You should flash a new modem in Rom manager.. open rom manager go to codeworkx and flash KI3 or KI4
btw, this is not the right forum to post questions

Hi rg90
Thanks for the answer, I am not fully aware of the terminology, so appologise my stupid questions.
I have the program ROM Manager premium, I can Flash clockworkMod ? Is that what is you mean ?

What he means is. Try flashing the ki3 or ki4 modem. They can be found in Rom Manager under Download rom > Codeworks.
If it doesn't help. Do a full wipe (data, cache, dalvik cache) and flash CM again.
Next time post in Q & A forum.
Sent from my GT-I9100 using Tapatalk

do you have /efs folder backup? Go to phone information and check is your IMEI still there. If not then you need to restore your efs .

Hi
You right my IMEI number is not there, what is efs and how to do it ?

Hi Volapyk
thanks for the suggestion, I will try that.

Are u facing baseband version unknown problem?
go to setting, about phone and check it out.
Sent from my GT-I9100 using XDA Premium App

I think it worked, thanks alot

Questions or Problems Should Not Be Posted in the Development Forum
Please Post in the Correct Forums and Read THIS
Moving to Q&A

same problem
i understand i have to flash it but do I flash it using the cwsm program on my phone? Or do I boot it in cwsm mode or whatever it is? And flash it there I'm sorry guys still abit new to this
by cyanogenmod does he mean ICS 4.0.4 ( I downloaded the Ressurection 1.9.1 Rom off of galaxys2root.com it works well, especially awesome with SPB Shell 3D) Now i had service after everything was all said and done but no internet so I used wifi for abit but no more wifi, so i tried restarting and then i lost all the service i had.

I had the same issue after flashing cm. Make sure that you have the correct apn settings for your network. I'd not add them and reboot.
Sent from my GT-I9100 using xda premium

apn settings
buddn said:
I had the same issue after flashing cm. Make sure that you have the correct apn settings for your network. I'd not add them and reboot.
Sent from my GT-I9100 using xda premium
Click to expand...
Click to collapse
what are my apn settings supposed to be? i have bell.ca or bell.internet.ca
If i go to mobile networks i can only find Rogers CAN Mobile network and because of my sim card i cant use it.. darn lol

I'm not going to be much help there I'm afraid as mine were Vodafone UK which I found on their forum.
Otherwise if you backed up first, restore your back up, and there is an app in the market which backs up your apn settings and you can restore them once you've flashed CM.
Sent from my GT-I9100 using xda premium

Related

[Q] Cant use mobile data

cant use mobile data after flashing the new ROM
CM 7.1 RC 1
kernel - 2.6.32.9
LG P500
plzzz help
godslay3r said:
cant use mobile data after flashing the new ROM
Click to expand...
Click to collapse
Good that we know such an important information. Try again with a proper baseband ⇩⇩⇩
Try to add APN.
(Settings -> Wireless & networks -> Mobile networks -> Access Point Names)
You can find settings of the provider in google...
... or here..
1
godslay3r said:
cant use mobile data after flashing the new ROM
Click to expand...
Click to collapse
Fill in the blanks :
Original rom :
Rom you have flashed:
Whether u applied some.sort of a baseband fix:
Sent from my LG-P500 using XDA Premium App
apn settings not getting saved
original rom gingerbread 2.3.3
rom flashed : mikos cyanogenmod 7.1 rc 1
and 1 baseband fix
tell me a more stable rom and kernel for using 2G data
Flash the goddamned old baseband as said in my howto. Then go and reflash the ROM. It is clearly said that the patch does NOT work for data on the mik's thread, why are you flashing something with a known bug and complaining thereafter?!?
thanx bro
cant i flash it from recovery....these steps r too long
dr.notor said:
Flash the goddamned old baseband as said in my howto. Then go and reflash the ROM. It is clearly said that the patch does NOT work for data on the mik's thread, why are you flashing something with a known bug and complaining thereafter?!?
Click to expand...
Click to collapse
Woah! Bro relax... He jus a noobie... He doesnt know... Btw, u gt two accounts in xda?
Sent from my LG-P500 using XDA Premium App
godslay3r said:
cant i flash it from recovery....
Click to expand...
Click to collapse
No you can't.
dax4182 said:
Woah! Bro relax... He jus a noobie... He doesnt know... Btw, u gt two accounts in xda?
Click to expand...
Click to collapse
Yeah, so he should read the instructions. When you read that data is not working, flash it and complain that data is not working, it is just... duh!
P.S. No, the first one is cancelled.
godslay3r said:
cant i flash it from recovery....these steps r too long
Click to expand...
Click to collapse
Sure thing. I wrote a couple of pages worth of a howto since I hate flashing a simple ZIP from recovery and was bored. Ignore it, too long. FAIL.
still nt working..........now even the gsm network is gone
godslay3r said:
still nt working..........now even the gsm network is gone
Click to expand...
Click to collapse
Because you need to reflash the darned ROM which you have screwed with the non-working patch. Read!
i even reflashed the ROM dude........bt same prob
plz gimme a link of ur kernel version
RoM n baseband
Well, flash a full stock ROM via KDZ and move on. When you have done some reading (which clearly hurts your brain), come back with some non-PEBKAC issues. While you have mismatch between your baseband and ROM, you have no GSM and data. It is written in the howto, but then again, too long and boring to read, huh?
Bye.
Hello ppl. I have flashed to new baseband w/ Cyanogenmod 9(lurpohip) and franco's newest kernel. I can call and send text messages, but data doesn't seem to work. Would appreciate help. I've gone through both how-to's pt. baseband LGMDP.exe. Also did a full data wipe before installing the rom.
I noticed some NVRESTORE NV_FAIL_S errors when I changed to new baseband in LGMDP.exe though.. Any ideas? Tried to change 3 times, same errors occur.
Thanks in advance. Sorry for being a noob, but I have been searching for 2 days.
Unfortunately, CM team has removed some frequency from sources and now, with some carrier (eg. Vodafone or 3 IT), data connection doesn't work. I have the same problem. The solutions are:
1. Not use a CM rom
2. Use old baseband with patch for CM.
3. Wait for a fix
Sent from my LG-P500 using XDA App
Cause for some apn problems
http://forum.xda-developers.com/showthread.php?t=1479175
Sent from my LG-P500 using XDA App

Questions about 2.3.5

I want to update my bell unlocked Galaxy S2 now I see the tutorial on the forums for it but I can find the right firmware that there talking about also
1.Is there a root(what kernel should I use direct link pleasee?)
2. Will this screw up my reception like H+ on rogers
Thx guy's
sorry for so many questions im new to the galaxy s2 just got it
hey there, just read.. ;-)
no, seriously, if you want a rock stable close-to-stock rom on a 2.3.5 base, go for villain rom 3.0. before flashing, back up all your data using titanium for example. after flashing you can restore almost everything, even the app order on your deck.
1. root (if not yet done)
2. backup
3. do a nandroid backup using cwm
4.flash rom
5. restore your apps
6. start reading more on xda
good luck!
regarding your 2.question, signal depends on the used baseband, there are about 15 different modems out there, just read the sticky thread...
Swyped from my GT-I9100 using XDA App.

Any Advice

Hi all,
im new to this so please forgive me if this question has already been posted previously!
Ive been searching for countless hours on the web and different forums to try and find a solution!
My prob is this,
I rooted my fone using Odin and what i thought was a proper CFW but once i downloaded ROM manager off the Google store and tried to install the latest cyanogenmod 9, i constantly keep getting a message coming up saying "E: failed to verify whole package signature"
Firstly, I am confused whether to downgrade back to stock firmware and then try to upgrade from that; or, find a way to upgrade to cynanogenmod 9 straight from what i have installed ATM.
My fone specs are:
Samsung Galaxy S2 GT-I9100P
Android 2.3.4
Baseband: I9100PBVK12
Kernel: 2.6.35.7-I9100BVKH2-CL453351
[email protected] #2
Build number
Gingerbread.BVK13
Can someone please help me out with this in plain english as i am constantly running into a brick wall trying to figure it out!!!
Many Thanks
http://forum.xda-developers.com/showthread.php?t=1419102
Where does it say anything about ROM manager?
What did you use to root your phone? Also can you get into cwm recovery by holding down volume up, home and power buttons when u turn your phone on?
I see you have the i9100p, I'm afraid I know nothing about that version but this will help people pinpoint the problem
sorry guys i used Rom Manager to download latest version of CWM
Rom manager on Samsung phone uses a kind of virtual recovery from what I understand.
You have to have flashed a root kernel which I'm guessing you have as you say you used Odin. What did you flash with Odin?
Sent from my GT-I9100 using xda app-developers app
Not to sure what i flashed with as it was quite a while ago, i following http://forum.xda-developers.com/showthread.php?t=1419102 to try an install CM9 now lol the noob proof edition
OK so I had a read and the i9100p is the same as the i9100 only with nfc see here
http://forum.xda-developers.com/showthread.php?t=1480245
Ok this should work for you.
-Download cm9 resurrection edition from the official thread + the latest nightly and put the nightly on you internal SD.
-Flash cm9 resurrection edition via Odin as per instructions.
- when its booted up, turn your phone off and enter recovery using the combo I mention above.
- flash zip from SD and pick the latest nighty.
Should get you up to speed, good luck
Sent from my GT-I9100 using xda app-developers app
Thanks a bunch mate! Appreciate u helpin!
ive read that its not wise to use titanium backup to restore a backup after installing cm9, is this true?
No problem
If you use titanium for user apps only and not system apps you won't have to much of a problem. But other than that if you do find problems with apps after restore just a wipe of the app data from settings should do the trick.
Sent from my GT-I9100 using xda app-developers app
ok thank u!
big problem tho, i was flashing with odin and its froze about 3/4 of thw way through, have i bricked it??
I'm honestly not sure ive never had that happen to me.
Are you sure its just not taking longer than expected? I'm out atm so I can't have a search for you but if I remember right there is a 'have I bricked my phone' sticky on one of the s2 forums you might find some advise there. Sorry I can't help more
Sent from my GT-I9100 using xda app-developers app
Just thought!! is kies running on your PC? This can mess with Odin.
See here
http://forum.xda-developers.com/showthread.php?t=1648890
Maybe some help.
Sent from my GT-I9100 using xda app-developers app

problem with internet what should i do ?

i had the LPJ karnel with the Resurrection V1.0 remix ics
then i have decided to update the ROM to Resurrection V2.6 remix ics
and also installd the CM9 Karnal whit the ROM (tried to install it with siyha to)
and evry thing works perfect exept that the internet (3g) does not work only the WI-FI works
please help
Are your internet connection settings correctly set?
System settings / wireless... / more / mobile... / APN?
Sent from my GT-I9100 using Tapatalk 2
yea, the internet connection setting is just the same as they were before...
i think that what heppend is that when i changed the ROM a new modem file was installed and maybe it doesnt fit
but i dont realy know and i have never installed or touched moddem files...
See that helpful chap geko95gek,he knows all about modems.
Sent from my GT-I9100
chiko2490 said:
yea, the internet connection setting is just the same as they were before...
i think that what heppend is that when i changed the ROM a new modem file was installed and maybe it doesnt fit
but i dont realy know and i have never installed or touched moddem files...
Click to expand...
Click to collapse
flashing a modem thro CWM recovery in no way harm ur phone, so please try a cpl of modem and see the one that wrks well for u.
u can even try the one that was there earlier before flashing v2.6 rr rom and see
link for modem zip file below
Modem Collection
Modems can be flashed in recovery mode easily. Search in this forum and theres a thread dedicated to I9100 modems with lots to choose from. Each user has their own preferred modem so its down to flashing and observing any improvements in signal and data strength.
Sent from my GT-I9100 using xda app-developers app
how do i know which moddem to choose ?
and how do i install it ?
THANKS !
Read thread see if any users from your region recommend a particular modem. Or just flash a selection and use a signal strength monitor app to find best for your area. Takes a while but well worth it
Sent from my GT-I9100 using xda app-developers app
First try wipe cache also, from stock recovery
Sent from my GT-I9100 using Tapatalk 2
chiko2490 said:
how do i know which moddem to choose ?
and how do i install it ?
THANKS !
Click to expand...
Click to collapse
Did you bother reading what I posted.I knew nothing about modems for that rom until I spoke to that chap I mentioned.He'll advise you the range of modems to install and the preferred method of flashing(ie pc rather than phone).
THANKS for evry one first of all...
i have tried to flush a lot of modems used in my area and yet i see no change soo im
not sure that the modem is the problem... and im still having the same problem with the internet conection (3g)
also ive contected the that chap and im still wating for an ansawer from him ...

Few Questions guys

Ok so i am noob with Samsung and dealing with flashing and all these stuff, i just switched from iPhone to Galaxy S3 GT-I9300, i have read so many posts and watched so many videos, all what i want is some clarification
1* I have managed to download CM 9.0.0 for my phone and installed it through ROM Manager , i have noticed that my Data service is not working, am living in Kuwait "Middle East" the wifi is working fine no issues and i enabled the Data Service through the settings, how can i fix the issues with the data plan although it is working fine after i restored to my stock ROM
2*Can u tell me what the use of the Odin except rooting and installing a stock Firmware ?
3* correct me if i am wrong but the ROM will only do some sort of interface for the phone , as we say in IT "GUI" of course not to forget to mention the speed and tweaks for hardware of the device it self, i mean it is not a complete OS "Firmware" mostly GUI with Tweaks.
4*While doing the installation of the ROM and remove it and getting back to my stock ROM , nothing from my data has been changed, does that means every time i install any ROM and get back to the old one my data will not be effected on the stock ROM?
5* what would happen if i tried to install a ROM not compatible with the firmware i have ? and how would i fix that ?
6*How can i tell if the ROM is compatible with the firmware i have? , for example in my case i downloaded CM 9.0.0 for my S3 which has 4.0.4 firmware
7* I have understand that the ROM must be compatible with my phone version , what i mean with version like International version or US carriers versions, am i Right?
Am sorry asking too many questions,I tried my best to make the questions with yes or no answer, and incase you would like to write more please do
answering me those questions will help me alot, i have been reading so many posts and it is making me go insane
Thanks so much in advance :angel:
nowaar said:
Ok so i am noob with Samsung and dealing with flashing and all these stuff, i just switched from iPhone to Galaxy S3 GT-I9300, i have read so many posts and watched so many videos, all what i want is some clarification
1* I have managed to download CM 9.0.0 for my phone and installed it through ROM Manager , i have noticed that my Data service is not working, am living in Kuwait "Middle East" the wifi is working fine no issues and i enabled the Data Service through the settings, how can i fix the issues with the data plan although it is working fine after i restored to my stock ROM
2*Can u tell me what the use of the Odin except rooting and installing a stock Firmware ?
3* correct me if i am wrong but the ROM will only do some sort of interface for the phone , as we say in IT "GUI" of course not to forget to mention the speed and tweaks for hardware of the device it self, i mean it is not a complete OS "Firmware" mostly GUI with Tweaks.
4*While doing the installation of the ROM and remove it and getting back to my stock ROM , nothing from my data has been changed, does that means every time i install any ROM and get back to the old one my data will not be effected on the stock ROM?
5* what would happen if i tried to install a ROM not compatible with the firmware i have ? and how would i fix that ?
6*How can i tell if the ROM is compatible with the firmware i have? , for example in my case i downloaded CM 9.0.0 for my S3 which has 4.0.4 firmware
7* I have understand that the ROM must be compatible with my phone version , what i mean with version like International version or US carriers versions, am i Right?
Am sorry asking too many questions,I tried my best to make the questions with yes or no answer, and incase you would like to write more please do
answering me those questions will help me alot, i have been reading so many posts and it is making me go insane
Thanks so much in advance :angel:
Click to expand...
Click to collapse
1. try reboot
2 thats about all its for
3............
4 all your data will be there unles you do a full wipe in recovery which is recomended before installing any ROM.
5 A ROM isnt specific to your firmware.If you have an international version which is GT I9300 Or GT I9300T any ROM from the I9300 threads will work. Dont flash anything made for the non international versions
Sent from my GT-I9300 using xda premium
Tried reboot didnt work to activate the data service,
Just to note i didnt do a full wipe and second i didnt install the gapps...
Is there anyway to fix this ?
Sent from my GT-I9300 using xda app-developers app
nowaar said:
Tried reboot didnt work to activate the data service,
Just to note i didnt do a full wipe and second i didnt install the gapps...
Is there anyway to fix this ?
Sent from my GT-I9300 using xda app-developers app
Click to expand...
Click to collapse
You do a full wipe. A full wipe is always recommended to prevent some weird bugs.
Sent from my GT-I9300 using xda app-developers app
nowaar said:
Tried reboot didnt work to activate the data service,
Just to note i didnt do a full wipe and second i didnt install the gapps...
Is there anyway to fix this ?
Sent from my GT-I9300 using xda app-developers app
Click to expand...
Click to collapse
Full wipe
install again the rom
install gapps
then watch if data is working
If yes enjoy
if not install roma manager and try to install different modem.
repeat until u find a modem working for your network
If work enjoy
if not try to install CM10 Experimental
...
....
.....
enjoy

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