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Unable to connect to 3G with Froyo on N1

I live in Japan, and use a Softbank SIM card from an iPhone 3G. For the past few months I have been running Cyanogenmod 5.06 with no issue, Yesterday I installed Froyo with this ROM.
bit.ly/9l3sBM
Everything works great minus connecting to 3G. In japan 2G is no longer used therefore I cannot even make a phone call.
I have checked and rechecked to make sure I am using the correct APN settings.
Any ideas? Could my carrier be blocking it. May it be a problem with the ROM? I did a sum check before installing.
I really would like to use 2.2 as its much faster and the battery life is at least 2X longer.
Thanks,
Brandon

So apparently there was an issue with my automatic cell phone payment, and once my phone disconnected from the network it was not allowed back on. I payed it, and it now works.

Unable to connect to internet with Froyo on N1
Hello !
I just installed froyo on my nexus and i cannot connect to internet (3g, 2g) anymore.
I have the same settings as in previous 2.1 (i asked operator for apn, user etc.).
Every other mobile device i have works with my sim.
Everybody have this issue ? My Nexus is useless without this....
Thanks

[Q] GSM/WCDMA auto mode not working???

Hi,
I have flashed via Odin all the previous and the most recent stock firmwares of galaxy s(international version GT-I9000).I have even upgraded my galaxy s running android 2.1 to 2.2 officially via kies.
But the phone is stuck with one problem in all the cases.
The auto mode doesn't select the 3G/HSPA and instead selects EGDE/GPRS(both networks have good reception).To get 3G/HSPA I have to switch to WCDMA only mode first and then revert back to GSM/WCDMA auto mode.That's the only way to get to 3G/HSDPA signal.
I am using BSNL 3G connection.
I have seen a few topics which relate closely to this case but none of them have been solved.Please help.

You must be patient, because sometime need more time for selecting 3G/HSPA in automode...Time to time more than 1-2 minute. I think it is network related, because provider sometime make service on Base Stations on the network...
Regards

I am on jvk and its working fine on airtel
Sent from my GT-I9000 on JVK

miro666 said:
You must be patient, because sometime need more time for selecting 3G/HSPA in automode...Time to time more than 1-2 minute. I think it is network related, because provider sometime make service on Base Stations on the network...
Regards
Click to expand...
Click to collapse
Hi miro666,
Currently my SGS is running official Froyo(2.2) and it has the correct modem and CSC.The APN and all other user setting are correct.I have waited for it to switch to auto mode for more than 5-10 minutes and only by manual intervention it immediately switches to 3G/HSPA.Prior to flashing it worked flawlessly and would automatically make a switch but not now,after I have flashed it with all the android versions.
I switched the SIM to my LG Optimus P500 to check whether it is an issue with service provider or not but LOL...it's working absolutely fine on Optimus.
I guess something is wrong with my Galaxy S.

Backup data and factory reset is always the first step .
jje

I have already done factory data reset a couple of times.Also I have entirely flashed different android version but the problem still continues to irritate me.
While tinkering with the phone ,I learned one more way to switch to 3G signal data i.e. toggling the flight mode.Once switching back to signal data after flight mode,the phone automatically connects to 3G/HSPA signalling 3G/H in the notification bar.
I am clueless as what could be the reason?

[Q] "Your sim does not allow connection to this network" error

Bought a Galaxy S yesterday. It is originally purchased in the Netherlands, but i'm using it in Belgium now. When buying it, the device got tested with proximus and mobistar sim card (main providers in Belgium) and seemed to work (sms and calling worked). Getting home, putting in my mobile vikings sim card, I didn't seem to get any service. In my notifications bar it says BASE (which is the network mobile vikings uses if i'm not mistaking), but i'm not getting anything.
When searching the providers, mobile vikings is shown, but when selecting it I get :
Your sim does not allow connection to this network"​, which is strange since it's a mobile vikings sim card.
Never had any troubles, and sim card was working moments before testing on the galaxy S
No custom rom installed or what so ever.
Any help would be greatly appreciated since I can't do anything with the phone atm.
Thanks in advance!

I had this problem about 8 months ago... If i remember correctly I just had the wrong modem flashed... I was missing a modem with 850 band... try flashing Ugkc1 of jk4 modems... also check to see if your APN(access point names) are in your wireless settings

dlockhart said:
I had this problem about 8 months ago... If i remember correctly I just had the wrong modem flashed... I was missing a modem with 850 band... try flashing Ugkc1 of jk4 modems... also check to see if your APN(access point names) are in your wireless settings
Click to expand...
Click to collapse
Just got a mail back from my provider, they're sending me a new simcard. But I doubt it's going to make a difference...
My apn settings are all ok. Don't know about my modem though...Don't know what it is, or whta it's supposed to be

I am pretty sure you probably need the 850 mhz modem in your area then..
what is your current baseband (settings>about phone)
New Sim card won't fix your problem.

My baseband is XXJG1, and I'm still on Android 2.1

My suggestion to you would be to download JS8 which is 2.2 and flash it with ODIN
http://www.samfirmware.com/WEBPROTECT-i9000.htm from here (you need to sign up)
see if that fixes your problem...
if it doesn't work, stay on JS8 and flash a modem(phone) file only that has 850 enabled... like JK4 or KC1 (there are more then those 2)
Just look up steps on how to flash with ODIN and check you tube for videos... just be careful...

Thanks a lot for the advice. I'll try it this weekend. (on a mac atm,and can't get heimdall to run)

UPDATE:
I tried flashing my modem without any result as far as I could see. Tried flashing darky, without result.
Got my new simcard from my provider, but nothing . I'm back on stock now FW 2.1 update 1 and baseband XXJM3.
Strange thing is that I get edge and 3G, to which I can connect. So my mobile internet from my provider is working, but no signal what so ever...
I'm starting to get desperate here...

I was also similar problem on my i9000t and i897 used in India. In my case the problem was intermittent. The solution i arrived at is as follows:
First select a modem that works correctly for your Band. Now force that particular band from SGS tools or going to service mode by dialing *#2263#. For example I force GSM900 for edge and wcdma2100 band for 3G. After that let your mobile choose select the network. Be patient for 10-15 minutes, it should work.

[Q] JVQ HSDPA not working!?

Hi guys! I'm having some problems with HSDPA after updating to JVQ. I'm on stock JVQ and I can't get to HSDPA... I only get 3G speeds and it's damn slow! I used to have HSDPA on JVP but after upgrading to JVQ it doesn't work anymore.
I tried the HSDPA menu but even if I change something the settings still appear on OFF and can't do anything about it. Can someone help me!?

Hi, I had the exact same problem earlier today with JVQ and my 3G doesn't work any longer.
The only was I couldmake HSDPA work was to download the APN configuration settings from my service provider, via their webiste on wireless, (THREE, Australia) and it works fine now
I suggest you attempt the same with your service provider. Good luck

[Q] Note dropping data connection despite strong signal

Hey guys,
My GNote is misbehaving since I bought it. The data connection drops randomly despite the device having strong signal. It would jump from H+ to H or 3G, sometimes drop to G. Whenever this happens, the connection dropx and I get disconnected from all services. The signal, however, remain strong (full bars). Wifi connection is stable and has no issues.
My previous device was a HTC Desire, and didn't have this problem. Logically, it means that the problem is with the Note. I assume that a possible fix is a radio update (current firmware version is LB1, GNote from Germany - I live in the UK, central London).
I couldn't find any information regarding radio (there was one thread that listed them all, but I don't want to root the phone and didn't know what version to choose). Any help on this will be greatly appreciated.
Regards,
Ben

i always have the same issue but still no solution

No ideas, anyone?

none is helping us

Mine was doing the same thing so i went back to XXLA4 modem and that fixed it. Hope this helps!
Sent from my GT-N7000 using xda premium

When I was using the SGS2 most people had similar problem and samsung is aware of it, there was some technical explanation about it also in the SGS2 thread..temporary solution is to disable the hsdpa mode or something like that using the samung secret code..anyway I went back to xxla4 modem which does not have this problem.
Hope this help.
Sent from my GT-N7000 using Tapatalk