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No 3G on Samsung Galaxy S2 Vodafone India

Dear all,
I recently got a Samsung Galaxy S2 from Swedish 3 Network.
Obviously the phone is bind to the carrier and I rooted the device and unlocked the SIM and bam! I got the phone working.
I wanted to test 3G Services from Vodafone and before I jumped on to that part something in between caught my attention..
Frimware update with Gingerbread 2.3.4.
Initially when I got the phone it was on PDA:XWKF4 PHONE: NEKF2 CSC: HTSKF1 with Gingerbread 2.3.3 with lengthy 3 Network boot loader.
The firmware that interested me is PDA:XWKI4 PHONE:XXKI1 CSC:Multi with Gingerbread 2.3.4. I flashed and the phone and it is back into sound operating mode without any hassles.
Now I decided to jump on to 3G testing part. I called Vodafone Care and they advised me to send an SMS to 144 mentioning ACT 3G which I did. I got a confirmation saying that 3G is active.
However, here comes the problem part. Whenever I turn Data Network mode all I see is "E" with up and down arrows. And when I go to Phone Settings -> About Phone -> Status -> Network Type it says Edge.
Am I missing anything here? To add ambiguity I didn't test 3G with the previous version of firmware. One thing I'm sure about is 3G worked on this phone before on 3 Network.
Any inputs greatly appreciated..
Regards,
A.

Fixed: No 3G on Samsung Galaxy S2 Vodafone India
Well..
My problem resolved..
I flashed my SGS2 with below firmware combination:
PDA:ZSKI3 (Hong Kong)
PHONE:XXKI3 (Hong Kong)
CSC:INU(India Localization)
And now I have H+/3G whenever I turn on Data Network Mode.
At last.. I'm at peace.. Device fully functional..
Regards,
A.

Hello Arun,
I too am having issues connecting to the 3G network of Vodafone in India. My SGS2 is from AT&T and I was able to root it & unlock it and its works fine with the call and other stuff. I flashed the UnNmaed v1.0.4 ROM and its been pretty stable.
I looked up at the CSC code on my phone by dialing in *#272*<your IMEI># and its shows as ATT. Can you please enlighten me on how to change the CSC to INU like yours so that I can access the 3G network here.
Thanks

Hey,
I'm running an SG 2 I bought in Mumbai about 6 months ago with the following stock firmware -
PDA: KE8
Phone: KE2
CSC: INU
Gingerbread 2.3.3
I activated 3G on Vodafone a few days ago and they insist its active from their end. Been thru the manual settings routine and restarted the phone a dozen times, but it refuses to latch onto 3G. Data works, but only EDGE, like you've mentioned in your original post (the E with the 2 arrows).
Any suggestions how I can get on to 3G? This is frustrating, and I'm positively a noob as far as rooting/flashing ROMS etc goes.
Thanks!

Hi all,
First time poster, long time follower!!
I'm hoping someone can help me here because i have a real headache with my galaxy s2.
When i got it at Christmas everything was perfect. But two weeks later i suddenly lost my 3g. Phone works fine on 2g (except for the slow speed), but i contacted my carrier 3Ireland and they said everything is fine on their end. My APN is perfect, i've tried toggling airplane mode, entering codes, data package checks. You name it and i've tried it.
When i force my phone to select 3g it looses all signal and i have to restart my phone and quickly go back into settings to choose 2g or i will loose signal again.
This is the following on my phone.
Android version 2.3.5
Baseband version I9100XXKI4
Kernel Version [email protected] #2
Build number GINGERBREAD.XWKI8
I've being reading about modem/radios lately, is that just the baseband? Could that be my problem. I'm a noob at this kinda thing.I just want my 3g to come back.
All help is greatly appreciated. Look forward to hearing from you all.
Thanks.

need rom for i777
http://forum.xda-developers.com/showthread.php?p=26351829#post26351829
Hi all,
Please go through above link and help me to install a ROM for my phone..tell me which rom is the best to use in India..

[Q] Any ways to flash P6200 european firmware to Unlocked T869?

Ok can anyone help me?
I have Rooted unlocked T869(it was for Tmobile but after unlocked i use it with ATT Simcard). I would love to have phone call capability(non of thos VOIP crap, just oem phone call).
I was wondering if anyone know how to flash european firmware(probably P6200 because it has similar 3g4g capabilty) to T869(tmobile version with 4g but no phone application). I think the two are similar so can anyone help me with this project?
Maybe some written guide, european firmware download link that can be safely flashed to T869?
Or maybe phone dialer apk for rooted tablet?
Thank you in advance.

Same question here, it is possible ?
Thanks,
Mike

this has been answered moe than a few times. tmobile variant doesnt have correct hardware and modem doesnt support voice(out of the box anyway).
flashing a p6200 firmware will likely cause tremendous problems. Like more than just ODIN'ing back to stock.
please be warned.
On another note, I highly recommend selling your tab and getting a p6200 w/voice & hspa+ I love it.
cool characteristic not mentioned very often, it an android smartphone with no soft buttons! very light and smooth and no need to worry about battery. excellent purchase. Can not say how it will work on tmobile though. If you have an unlimited plan you may be allright.

chrisrotolo said:
this has been answered moe than a few times. tmobile variant doesnt have correct hardware and modem doesnt support voice(out of the box anyway).
flashing a p6200 firmware will likely cause tremendous problems. Like more than just ODIN'ing back to stock.
please be warned.
On another note, I highly recommend selling your tab and getting a p6200 w/voice & hspa+ I love it.
cool characteristic not mentioned very often, it an android smartphone with no soft buttons! very light and smooth and no need to worry about battery. excellent purchase. Can not say how it will work on tmobile though. If you have an unlimited plan you may be allright.
Click to expand...
Click to collapse
Are you sure it's not a confusion ? We talk about SGH-T869 ( Tmobile variant of P6200 - 7.0 Plus ) not old Galaxy Tab 7.0 ( P1000 )
Thanks,
Mike

1000% sure. Like the previous answer already explains the name of the device is the same but the internal hardware is different. The radio uses a different band and flashing the p6200 firmware over a th869 will for sure cause a brick
P_

So p6200 is same as T-Mobile but unlike tmobiles it could do voice?
Could it do us tmobike 3g as well?
pakalrtb said:
1000% sure. Like the previous answer already explains the name of the device is the same but the internal hardware is different. The radio uses a different band and flashing the p6200 firmware over a th869 will for sure cause a brick
P_
Click to expand...
Click to collapse
Sent from my Galaxy Nexus using XDA App

any news on this?

Official Australian Optus GB rom available...kind of...

As some of you may know, my O3D was sent to LG service repairers Evertec to fix a broken power button. I asked them to fix just the power button under warranty - my phone was on froyo (i was on the leaked GB but because of ghost calls and data dropouts i reverted to froyo) and i just got my phone back today with a note saying the power button was fixed and they flashed my phone to "the latest firmware"
Lo and behold I booted to a fresh install of an official Optus GB rom - baseband 20b but perfect reception. no dropouts or ghost calls. i think it may be rom related.... i do have some bloatware but at least i have no reception/data issues
im not sure if this rom is available ota or for download but the service guys seem happy to flash it on repaired phones!

yes,20b is online,but still not rootable

I had 20b installed before but it wasnt the Australian Optus rom... Whatever rom that was, it always gave me grief....now no problems at all. in fact optus even sent me a message with settings in it - i havent activated it as yet as my reception is currently working perfectly fine without it.

Guys, please be aware that LG version numbers ARE NOT CONSISTENT, at least not the way we think of it. European v20b is not the same as India v20b.
In fact, each region has it´s own version branch, so you can perfectly have, for example, Romenia v21a with the same baseband of Croatia v20b.
So, don´t be fooled by equal version numbers: you can only compare version numbers when comparing software for the same region. If you cross regions when comparing, you will get it all wrong.

shredman09 said:
I had 20b installed before but it wasnt the Australian Optus rom... Whatever rom that was, it always gave me grief....now no problems at all. in fact optus even sent me a message with settings in it - i havent activated it as yet as my reception is currently working perfectly fine without it.
Click to expand...
Click to collapse
I installed the same rom as you, 20B Optus, took my external SD out and formatted the phone to factory, for one day the phone worked well then the problems started as before 3G getting stuck can't go to airplane mode I had to restart the phone, after it happened over 4 times I installed froyo. Same thing exactly happened to my friends O3D, Evertec changed the board on my phone when I took the phone for service for the random rebooting problem, now it is very hard to sell the phone if I tell the potential buyers the phone was serviced. So I am stuck with it.
I use it like Thiaz as a media device now and I use My Iphone 4 as my main phone.
what is the use of a phone if it can't be used as a phone?
Sent from my LG-P925 using xda premium

I noticed you're posting from a 925... Mines a 920.... I never had a random reboot and I've installed the Acura and Thiaz roms - used stock roms, OC'd and the only GB rom working properly is this one....
I'll keep my fingers crossed that it stays this way....
Admittedly I never had any issues on Froyo - If this rom does play up I'll downgrade asap. I won't miss the GB features all that much

shredman09 said:
I noticed you're posting from a 925... Mines a 920.... I never had a random reboot and I've installed the Acura and Thiaz roms - used stock roms, OC'd and the only GB rom working properly is this one....
I'll keep my fingers crossed that it stays this way....
Admittedly I never had any issues on Froyo - If this rom does play up I'll downgrade asap. I won't miss the GB features all that much
Click to expand...
Click to collapse
You noted correctly, but my one is an Optus 920, I was so desperate so I am using Froyo Baseband and the CM GB for the 925, this was my last resort, the phone works very quick with no lag, and I charge once a day, hdmi does not work, and I can't view photos in 3D, but this phone is good for playing games, that is all I use it for.

I have intalled the update to my optus lg optimus 3d thought lg update tool, i have had 2 missed calls i did not receve that i know of and really bad battery life. i might have to do a factory reset if this does not fix i will not be happy.......back to lg

woohoo70 said:
I have intalled the update to my optus lg optimus 3d thought lg update tool, i have had 2 missed calls i did not receve that i know of and really bad battery life. i might have to do a factory reset if this does not fix i will not be happy.......back to lg
Click to expand...
Click to collapse
Good Luck mate, they will tell you that you are the only one in the world that is having this problem, all the staff at the LG service center (evertech) are using GB without any issues what so ever.
you will be told (you are special)

Ok... Here's the weird thing - I know people seem to be having problems using this rom... I am not one of them (so far) I had issues on every other GB rom but this one. Maybe it's related to signal strength, carrier specific settings or something else. I really can't explain my lack of issues. I do set my phone to 3G only - as I don't want it jumping from 2G to 3G but that's it as far as any phone changes.
*I am using the Optus GB rom on Virgin Australia (they piggyback on Optus - slightly different settings but same network).

shredman09 said:
Ok... Here's the weird thing - I know people seem to be having problems using this rom... I am not one of them (so far) I had issues on every other GB rom but this one. Maybe it's related to signal strength, carrier specific settings or something else. I really can't explain my lack of issues. I do set my phone to 3G only - as I don't want it jumping from 2G to 3G but that's it as far as any phone changes.
*I am using the Optus GB rom on Virgin Australia (they piggyback on Optus - slightly different settings but same network).
Click to expand...
Click to collapse
Please keep us posted, I am on Vodafone and the signal is shocking where I live (inner west) Vodafone will be updating the network next month.
but I do not have any issues with my iphone at all, and when I go to my other house (castle hill) where the signal is perfect -50 db I still get the baseband crashing.
I used the phone for 2 weeks back in November when they released the Europe Open before I stated getting complaints that I am not answering Phone calls and I missed out on couple Jobs worth over a grand!!!

Quick update.... 1 week later and still no issues - strange but true! No missed calls (that I'm aware of and no loss of data... Perfect reception... For virgin mobile customers on Optus GB rom - no issues.
GPS lock perfect - regaining signal after airplane mode perfect, over 400MB in data in a week and no loss of reception, perfect... This is the only rom that works for me on GB without ghost calls, internal reorganizing crap or loss of reception/data
I can't root and have some bloatware but I can live with that...
Will update if things go bad but for now I'm VERY happy!

Thank you so much for getting back to us, I will be trying the 20A Australia again, this time around, I will take the SD card out, will fully format the phone and only install couple important apps that I need, I am doubtful but at this stage I am willing to try anything. will try the 20A for 3 days and will report back.
Edit:
Day one: No Freezing and no missed calls at all.

[Q] i9103 radio/baseband in USA

Hi, I recently bought a used i9103 on eBay that was imported from an overseas country (Still not sure which country), seeing as it was never sold in the US. After using it a few weeks, I notice that the signal jumps radically, even when the phone is stationary.
So my question is, which baseband/modem/radio would be best? (Specifically for T-Mobile USA)
As a note, I am in a major metro zone and other phones in this same area get a strong and consistent signal.
The baseband is currently XXLQ3.
Thanks.

You can try DDLP3 baseband from Indian ICS XWLP8 rom. That's the latest and that's why it should be the best one.

I flashed the modem alone from XWLP8. I'll report back in a few days if there's any difference. I guess I should also ask if there's any difference in hardware in the models shipped to different regions? Or is there only one model, just with different software?

There is only one model as far as we know, at least there weren't any others reported.

Just an update, flashing the Indian radio didn't seem to help at all. Signal still jumps up and down wildly. Turning on Data Roaming did not help either.

Problems with cellular reception since updating to Marshmellow on my S6 Duos

Hey everyone,
I've never really been into the whole flashing deal and I'm also pretty new to the xda-forums so pls don't hurt! :angel:
Anyway, so live in Germany and imported myself an S6 Dual Sim Version via Amazon, so that I could have Internet both there and at home in Ausria at all times. It had a Russian Baseband and CSC but it worked and filthy casual that I am I really didn't mind until now. It's a really weird issue, so sorry that the post turned out pretty long. I haven't found any similar common 6.0.1 Bugs, however I'm not even completely sure if it really is a problem of the updated OS anymore...
So here's the deal.
In Germany I got the prompt to update to Marshmellow 6.0.1 via OTA. Having heard mostly good things about it I downloaded it without really bothering too much about informing myself about any known issues with 6.0.x . After downloading it in Germany my Signal and Mobile Internet worked fine, however I did experience some battery drain in the following days and decided to initialise my phone via Samsung Smart Switch, as I had done with 5.1.1 when I first got the phone because it's cpu never went into sleep mode. Worked out fine then.
Well ever since I did the same thing with my S6 with 6.0.1 the whole dilemma started. Regularly, my phone will show 4G Signal Reception and even full bars, but I am not able to load a webpage or even be called by phone. Wifi works fine, when I have these outages. When I activate flymode and deactivate it again, my reception works again for a couple of minutes, however, the issue will return after 5-10 minutes. Usually even faster when I'm in a moving car or train.
When I switch SIM Cards I can be called on both, but I can't seem to connect to my mobile internet on the Austrian card (can't check on the mobile connection from the german card as roaming is locked by the provider). I went to my austrian network provider and had my sim card replaced, no change. I flashed DBT G920FXXU3DPCA Android 6.0.1 via Samsung Updates hoping that the right baseband would fix it - Nope.
Any of you guys have any other ideas? My last resort is flashing back to 5.1.1 stock. Trying to replace it through Amazon will probably be hard, because the KNOX Counter is tripped. It already was before I flashed 6.0.1, but that doesn't really matter to Amazon I guess. Also the bug is way to specific to replicate anyway, so I'd probably receive the same device back and I don't really know how I could prove via screenshot, etc...
If there's anything I can upload that would help, pls tell. Hoping somebody here might have an idea!

Having similar problems but also with wifi. Any advise appreciated
Skickat från min SM-G920F via Tapatalk

I have the same problem with cellular reception with my S6 duos G920F. My problem is only with sim slot 2 though. It seems to show full bars but when people call me they are getting me as unreachable.