[Q] Need help with Nexus S 4G UMTS and custom roms - Nexus S Q&A, Help & Troubleshooting

Hi, I'm new to android and I recently signed up with Mobilicity for a Nexus S 4G.
I've figured out how to root my phone but for some reasons every custom rom I tried is not picking up any signals at all. (except WIFI)
So I am starting to think that it might be the type of signal (UMTS) that Mobilicity offers that doesnt work with custom roms?
Correct me if I'm wrong, and please help me with solutions, Thanks!

darkkame said:
Hi, I'm new to android and I recently signed up with Mobilicity for a Nexus S 4G.
I've figured out how to root my phone but for some reasons every custom rom I tried is not picking up any signals at all. (except WIFI)
So I am starting to think that it might be the type of signal (UMTS) that Mobilicity offers that doesnt work with custom roms?
Correct me if I'm wrong, and please help me with solutions, Thanks!
Click to expand...
Click to collapse
Mobilicity is a GSM carrier. Do you actually have a Nexus S 4G (a CDMA device) or have you been flashing Nexus S 4G Roms onto your device (in which case you are flashing a rom/radio for a CDMA device onto a GSM device)?

krohnjw said:
Mobilicity is a GSM carrier. Do you actually have a Nexus S 4G (a CDMA device) or have you been flashing Nexus S 4G Roms onto your device (in which case you are flashing a rom/radio for a CDMA device onto a GSM device)?
Click to expand...
Click to collapse
hmm, on the box it saids Nexus S but when I try flashing Miui for Nexus S, it wouldn't work unless I'm using the 4G version so i assumed that my phone is 4G.
And the phone status says that my "Mobile network type" is UMTS.

darkkame said:
hmm, on the box it saids Nexus S but when I try flashing Miui for Nexus S, it wouldn't work unless I'm using the 4G version so i assumed that my phone is 4G.
And the phone status says that my "Mobile network type" is UMTS.
Click to expand...
Click to collapse
If you got it from Mobilicity it's the GSM version (AWS frequency, i9020 or i9020T by model number).
If you've flashed a radio for the NS4G (a CDMA device) or the i9020a this is going to break things.
What radio are you currently running? If you can't get service flash back to a stock i9020t ROM and see what you get. You can grab a full stock ROM here: http://forum.xda-developers.com/showthread.php?t=1063664

that's exaclty what's happening to me, i got a nexus said to be a I9020A (under de battery), and on the manual says it's the nexus s 4g. the problem is (the same as darkkame) that the type of signal, in the settings says it's UMTS, so is neither CDMA nor GSM i think.
i live in chile, south america, and that's the problem i'm having with custom roms, particulary with the ice cream sandwich one, it only let me flash the nexus s 4g version of the rom but not the 3g one and i have everything working except the cell reception and 3g signal.
sorry for the poor redaction xD

gnrsenpai said:
that's exaclty what's happening to me, i got a nexus said to be a I9020A (under de battery), and on the manual says it's the nexus s 4g. the problem is (the same as darkkame) that the type of signal, in the settings says it's UMTS, so is neither CDMA nor GSM i think.
i live in chile, south america, and that's the problem i'm having with custom roms, particulary with the ice cream sandwich one, it only let me flash the nexus s 4g version of the rom but not the 3g one and i have everything working except the cell reception and 3g signal.
sorry for the poor redaction xD
Click to expand...
Click to collapse
UMTS is GSM

krohnjw said:
UMTS is GSM
Click to expand...
Click to collapse
thanks for the clarification, then my nexus isn't really the 4g version (despite what it says on the manual), but for some reason the ice cream sandwich rom acknowledge my device as a CDMA when it isn't so it won't le me flash the nexus 3g version of the rom (brings "installation cancelled" on the recovery), only the 4g optimized rom, but that's when i get no cellular reception nor 3g.
just have to wait for the official ics release then

Redownload the GSM version and verify the MD5. Installation Canceled usually means its a bad zip or the updater-script is jacked.
Sent from my Bionix on the Nexus S using XDA App

i found the problem, because i mistakenly thought my nexus was a 4g version ('cause that's what it says on the manual), i followed the rooting and clockmodwork installing procedure for the nexus s 4g variant, now i reverted the procedure, but this time for the 3g version of the phone and voilá i can now install the ice cream sandwich rom and have the cellular reception
maybe this solution applies for the author of this thread too

Can you provide a link to the rom you installed?

Related

[Q] Not Getting Network on a Particular SIM

This is by far the strangest problem I'm facing with my Nexus S
I've two SIM cards from two different networks. one is GSM 900 and anothe is GSM 1800
Both the SIMs are perfectly ok and functioning very well in my Nokia X2.
But one of the SIMs (GSM 900) is not getting any network in my Nexus S.
Interestingly I've been using this very SIM (GSM 900) in my nexus for last one month.
Just to give a background, I'm facing this problem when I flashed the latest 2.3.7 stock ROM.
I tried flashing other ROMs aswell...Currenyly I'm on MIUI...but no Luck ! And Yes, the Other SIM is working absolutely fine with my Nexus and fine with both the ROMS !
Please Help !
If I'm not mistaken I believe 2.3.7 is an update for nexus s 4g models only and not GSM. That is a very good chance as to why your network doesn't work.
Sent from my Nexus S 4G using Tapatalk
drtdiver83 said:
If I'm not mistaken I believe 2.3.7 is an update for nexus s 4g models only and not GSM. That is a very good chance as to why your network doesn't work.
Sent from my Nexus S 4G using Tapatalk
Click to expand...
Click to collapse
But it was Getting network. And My other SIM is getting network in that OS.
BTW, I've flashed a different ROM (MIUI)....No luck with the new ROM...
frequency base band problems perhaps ?
Yes, its Reading 1800 SIMs but not 900 SIMS.
all what you said so far indicates that the problem was caused by the new binary.
it seems the hardware is working fine.
what is the software version of your phone?
download an official version of Nexus S and you'll be fine.
tell me what you see in the "about phone"
Android Version: 2.3.5
Baseband Version: I9020XXKD1
Currently I'm in MIUI. Searching for the official version of 2.3.4
uralpongkhi said:
This is by far the strangest problem I'm facing with my Nexus S
I've two SIM cards from two different networks. one is GSM 900 and anothe is GSM 1800
Both the SIMs are perfectly ok and functioning very well in my Nokia X2.
But one of the SIMs (GSM 900) is not getting any network in my Nexus S.
Interestingly I've been using this very SIM (GSM 900) in my nexus for last one month.
Just to give a background, I'm facing this problem when I flashed the latest 2.3.7 stock ROM.
I tried flashing other ROMs aswell...Currenyly I'm on MIUI...but no Luck ! And Yes, the Other SIM is working absolutely fine with my Nexus and fine with both the ROMS !
Please Help !
Click to expand...
Click to collapse
2.3.7 is for the cdma nexus s 4g not a GSM model. Try reflashing the correct radios for your phone.
Sent from my Nexus S 4G using xda premium
I've tried Flashing Radios. But Yet its the same scenario !
Getting network with a GSM 1800 sim. Not with GSM 900 SIM (Unfortunately this is my official number)
Can anyone suggest the exact stock ROM for my sns. I tried to search here in XDA, but not finding the exact one.
the sticker in back says my SNS model is GT-I9020
Some files may stuck in /system partition when you flash something, and good idea is to format /system from CWM recovery (you can find it under mounts and storage section) and flash rooted flash rom from here - http://forum.xda-developers.com/showthread.php?t=1063664.
It's always a bad thing to flash something that is not meant for your device.
Formating /system before you flash stock rom. Hope that could fix your problem too, but I'm not sure . Just a suggestion ...
Mafia303 said:
all what you said so far indicates that the problem was caused by the new binary.
it seems the hardware is working fine.
what is the software version of your phone?
download an official version of Nexus S and you'll be fine.
tell me what you see in the "about phone"
Click to expand...
Click to collapse
I've flashed this from Google
http://android.clients.google.com/p...206299fe6.signed-soju-ota-121341.da820629.zip
Now my about phone looks like this :
Androd Version : 2.3.6
Baseband: I9020AUCKF1
Build No. GRk39C
Yet, its not getting network.
Should I take it that I've lost my Nexus.
Thanks for you reply Tenhi.
I tried formating Everything ! and also Flashed the Stcok ROM (NSGSM-GRJ22-deodexed-KD1-rooted)
But no Luck.
Interestingly, today I found that the set is getting network in Some places, mostly where the network strength is very strong. And functioning very well with GSM 1900 carriers. But facing the problem with GSM 900 carriers only.
Isn't there anyway to get back to Factory Settings or something like this...?
Don't know what else to say. Apparently the NS4G 2.3.7 ROM changed something permanently, and you can't reverse it with flashing another ROM/Radio/Kernel. Unfortunately I don't have any more suggestions . Hope you will find a way to fix it ...
Yet to get a way to fix it.
Strange problem I'm in.
Now looking for a nandroid backup. (Downloading this http://forum.xda-developers.com/showthread.php?t=1059914)
Lets see whether it solve the problem or not.
At this point I'm loosing hope...
Tenhi said:
Don't know what else to say. Apparently the NS4G 2.3.7 ROM changed something permanently, and you can't reverse it with flashing another ROM/Radio/Kernel. Unfortunately I don't have any more suggestions . Hope you will find a way to fix it ...
Click to expand...
Click to collapse
I had one Stock ROM backup (2.3.3). I flashed it today. Which updated the Radio to KB3 also.
But the problem persisted. Then I took the offcial update to 2.3.4 using the push update.
Yet the problem is not fixed. Not getting any clue on what happened !
I've tried two different operators who run GSM 900 and its not getting network with them.
But There is no problem with GSM 1800 operators. Its running smoothly with GSM 1800 SIM.
Alhamdulillah, the problem has been solved.
A OTA update to 2.3.6 has solved the problem for me.
First I flashed 2.3.3, just after flashing it prompted for a update to 2.3.4 and a day after it prompted for a update to 2.3.6.
Which eventually solved the problem
Thanks for your help guys.

[Q] signal became bad after flashing ARHD4.1.5

The reception used to be very good before flashing the customized ROM.
I have flashed the recommended radio, and from the phone-setting-aboutphone, it is showing the correct version: 10.58.9035.00u_10.15~~~~~~~.
I have sensation 4g with Telus Canada (phone unlocked from Bell Canada).
Anybody may have some ideas?
Thanks
petercanada said:
The reception used to be very good before flashing the customized ROM.
I have flashed the recommended radio, and from the phone-setting-aboutphone, it is showing the correct version: 10.58.9035.00u_10.15~~~~~~~.
I have sensation 4g with Telus Canada (phone unlocked from Bell Canada).
Anybody may have some ideas?
Thanks
Click to expand...
Click to collapse
http://forum.xda-developers.com/showthread.php?t=1202867
See what happens after using RIL files, then reboot.

[Q] Eu 3g device, Us rom 3g gone! Help anyone??

Hi every one!
I have an xoom 3g eu. After rooting etc i lost my 3g. Now im on lte ics wich is us. Is it in anyway possible that i get my 3g back? On a eu device with us rom?
Thx
Sent from my GT-P7500 using xda premium
Same Problem.
I think team eos release a non us 3g rom
http://forum.xda-developers.com/showthread.php?t=1459641
I think you'll find the problem is your Euro 3G MZ601 uses GSM radio and hardware while the US 3G MZ602 uses CDMA radio and hardware. Thus the US ROMs don't interface correctly with you MZ601.
The new EOS ICS for Euro 3G works very well on my Hong Kong sourced MZ601 with Australian Telstra 3G.
For pain free installation I would suggest running "fastboot oem unlock" again before flashing to ensure a clean install.
http://forum.xda-developers.com/showthread.php?t=1459641

[Q] Skyrocket on Telus - But want to use Telus LTE

Hello I've been viewing for a while haven't posted cause I've had no real solid input or questions but after some in-depth searching for a few weeks I simply cannot find a way to get LTE with Telus and the skyrocket.
I don't want to flash the Telus radios in this area of the forums because it's made for the T989d. That radio will only give me HSPA+.
So I tired flashing the latest Telus S3 radio and for a while I was getting LTE fairly regularly except the baseband version in about still showed the original version for Rogers and I have no idea if it actually flashed.
I recently flashed Slim Bean 4.2.2 v4.2 and it's running great and so I went to flash the S3 radio again and about still doesn't show the new version, yet according to TWRP the flash was successful. I have yet to see LTE since flashing just "H" and "H+".
Is the S3 radio really any different from the skyrocket? and if so are there any Telus LTE compatible phones similar (WRT the radio) to the skyrocket that I can take a radio from?
Thanks in advance
AmiablySoulless

[Q] I do not have 4G after installing new ROM

Hello,
am new in these wanderings, and recently I have upgraded my galaxy s3 LTE (ROM, CFW, Kernel and ROOT).
I have the following doubts:
-Installed "[rXTREME.v9.0] (stable, smooth & fast))", currently the mobile phone does not have 4G when I try to communicate. (This area has 4G and it enjoyed once had and now only 3G and H +, H)
What should I do to get back in 4G?
My counter to install a CFW and ROM did not change the counter remains in the normal state, this is normal?
greetings and thanks
* sorry if there are any errors, I am using google translate,'m portuges. thank you
_Muuu said:
Hello,
am new in these wanderings, and recently I have upgraded my galaxy s3 LTE (ROM, CFW, Kernel and ROOT).
I have the following doubts:
-Installed "[rXTREME.v9.0] (stable, smooth & fast))", currently the mobile phone does not have 4G when I try to communicate. (This area has 4G and it enjoyed once had and now only 3G and H +, H)
What should I do to get back in 4G?
My counter to install a CFW and ROM did not change the counter remains in the normal state, this is normal?
greetings and thanks
* sorry if there are any errors, I am using google translate,'m portuges. thank you
Click to expand...
Click to collapse
So if you were stock and it said 4G it was really hspa+. Unless it said LTE then it was just H+. AT&T always puts the 4G logo on there too try and look cool
Sent from my CLEAN Note ll
brandonarev said:
So if you were stock and it said 4G it was really hspa+. Unless it said LTE then it was just H+. AT&T always puts the 4G logo on there too try and look cool
Sent from my CLEAN Note ll
Click to expand...
Click to collapse
Hello,
but when it was all over had STOCK LTE, ie the symbol was and 4G speeds could dw 50MB / 20MB up. Currently we do not get any of these speeds due to not bind 4G, only 3G, H and H +.
What could it be?
greetings

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