Database Users

Need Help !!!

My phone has stopped working 3G for one day until now( i've used for 1 month) even I try everything such as active, deactive ,reboot, up rom,...but it didn't work at all. I can't see the signal of 3G on the top bar. I don't know the reason is. Could you please help me ?
(I use Vodaphone carrier network in Australia)

Factory reset?
Sent from my GT-I9100 using XDA Premium App

I've done that but it did not work even though in stock rom or cook rom.

Could also possibly be a problem with the network... Masts do break down. Have you tried your sim in a different phone?
Sent from my GT-I9100 using XDA Premium App

Isadora said:
Could also possibly be a problem with the network... Masts do break down. Have you tried your sim in a different phone?
Sent from my GT-I9100 using XDA Premium App
Click to expand...
Click to collapse
It Damn well might be a Network issue. I'm Not from Australia, but I've been having the Same issue as you for at least a Month! Call your phone company and Complain... I Did and at least got Credited $!
Good Luck!

I have just try a different sim card in my galaxy s2, surprisingly icon 3G appear. I think the problem with the Vodafone sim card. OMG. Vodafone carrier. Thanks all you guys very much.

3G back.hehe
Sent from my GT-I9100 using XDA App

Nexus s 3g is not working in india

Hi I bought my nexus s i9020t from bestbuy 4 months ago. I am ftom india, I am not able to receive 3g signal in india and they say this is because of my mkbile is not compatable. Please help in thus regard, egat shiuld I do to get 3g.
Sent from my Nexus S using XDA App

The basebands for 3g are different in india. The i9020t comes with the 9020 baseband i think if you flash the 9023 baseband with the KD1 radio, Your 3g will work. I got my i9020t nexus from the US and am using it in india. I had a motherboard problem and got my motherboard replaced from samsung here. So they changed my baseband , Hence my 3g is working now.

I used my 9020 with vodaphone and got 3g in new Delhi. I was on vacation
Sent from my Nexus S using Tapatalk

I use the i9020T and I have no problems whatsoever with my 3G signal. Get speeds close to 4Mbps. I´m on BSNL Andhra Pradesh.
Which service provider? Maybe your service provider does not provide 3G in your area?

Or try this -- Go to Dialer and type *#*#4636#*#*
After that tap on Phone Information. In Set Preferred Network select WCDMA only. That´ll give you only 3G signal if available. If you want to go back to 2G select GSM only. If you want both select WCDMA Preferred but this is a huge battery drain.

Hi please give me little more insight to what you have done. Where are you from india. I am in bangalore can you pkease provide me some contact numbers of customer care. Can I directly flash 9023 rom into my mobile? Or will there be any hardware incompatibilities? Please help me I am dying to activate 3g
Sent from my Nexus S using XDA App

turagaramki said:
Hi please give me little more insight to what you have done. Where are you from india. I am in bangalore can you pkease provide me some contact numbers of customer care. Can I directly flash 9023 rom into my mobile? Or will there be any hardware incompatibilities? Please help me I am dying to activate 3g
Sent from my Nexus S using XDA App
Click to expand...
Click to collapse
Do NOT flash the 9023 ROM. That could make many things go wrong. If you're APN settings are configured then do what I said above and you'll have 3G.

Hi anirudh thank you very much for your reply I have already done that but it is of no help. Please educate me littme moe in this regard
Sent from my Nexus S using XDA App

Maybe you send some sort of msg to get 3g activated. For airtel you've to send "activate 3g" to 121. Maybe Vodafone has something of the sort too.

Hi anirudh in my mobile I have already done that so mobile connection is 3g active. Can yiu please give me your number
Sent from my Nexus S using XDA App

Frequent disconnection on Vodafone
Anyone facing frequent 3G disconnection on Vodafone network? I have 9020T and have KD1, what radio are you using?

That's the T-Mobile version. The Nexus S is not a quintaband phone. Tmobile 's 3G is 1700mhz band. So I do not believe you will be getting 3G with that phone in India.
Sent from my Nexus S using xda premium

LordPhong said:
That's the T-Mobile version. The Nexus S is not a quintaband phone. Tmobile 's 3G is 1700mhz band. So I do not believe you will be getting 3G with that phone in India.
Sent from my Nexus S using xda premium
Click to expand...
Click to collapse
I was getting 3G connection with Airtel/Tata Docomo all this while. Now i moved to Vodafone and suddenly it stopped. Moreover, i am getting 3G connections and can access data as well, but it automatically disconnects after a while like 20-30 mins.

This is working now after changing the sim from the same operator. In case someone is facing the same problem, talk to ur operator and get ur sim replaced.
Sent from my Google Nexus S using XDA App

[Q] How to check whether my 3G network is working properly?

Hi all, I need help!!
At first I want to inform that I am came from Malaysia. I am using the local telco which only support up to HSPA only. Not HSDPA+.
With my friends which is using same telco as mine (Note 2 N7100), with speedtest apps, he can ping up to 6Mbps++ for download speed. While i am using nexus 4 only can ping about 1Mbps...which was done at same location. I am wondering whether i am getting hardware defection or else...since using the same telco....may i know any method that can be used to test whether i am getting hardware defection on my phone?or sim card prob?

you can buy prepaid sim from same telco to test it,hope this help
Sent from my GT-S5830 using xda premium

Thanks bro...and i already checked. I put my friend sim to my phone and test. I can ran up to [email protected]@ is telco prob...tq for ur advice ya..
Sent from my Nexus 4 using xda premium

No signal on T-Mobile

Im using T-Mobile and yesterday I got that empty service bars on the notification and it could only make emergency calls. Happens from time to time didn't think anything of it but I left the house and I'm still not getting any service. I was running paranoid android June 6 build so I tried switching ROMs and kernels but still no signal . of course I took out sim and rebooted the phone. I even put my sim on another phone and it work got signal and put there sim in my phone and wouldn't get any signal either. I ran out of options any help is greatly appreciated
Sent from my Nexus 4 using xda app-developers app
Sent from my Nexus 4 using xda app-developers app

castro08 said:
Im using T-Mobile and yesterday I got that empty service bars on the notification and it could only make emergency calls. Happens from time to time didn't think anything of it but I left the house and I'm still not getting any service. I was running paranoid android June 6 build so I tried switching ROMs and kernels but still no signal . of course I took out sim and rebooted the phone. I even put my sim on another phone and it work got signal and put there sim in my phone and wouldn't get any signal either. I ran out of options any help is greatly appreciated
Sent from my Nexus 4 using xda app-developers app
Sent from my Nexus 4 using xda app-developers app
Click to expand...
Click to collapse
This happened on my first nexus 4. Nothing fixed it. Nothing. Hopefully your situation is different. If nothing works, flash back to stock and start the RMA process. Google said it was a hardware failure with mine by the way.
Sent from my Nexus 4 using xda premium

castro08 said:
Im using T-Mobile and yesterday I got that empty service bars on the notification and it could only make emergency calls. Happens from time to time didn't think anything of it but I left the house and I'm still not getting any service. I was running paranoid android June 6 build so I tried switching ROMs and kernels but still no signal . of course I took out sim and rebooted the phone. I even put my sim on another phone and it work got signal and put there sim in my phone and wouldn't get any signal either. I ran out of options any help is greatly appreciated
Sent from my Nexus 4 using xda app-developers app
Sent from my Nexus 4 using xda app-developers app
Click to expand...
Click to collapse
do you have your phone info set to lte only?

How do you check that? *#*#4636#*#* ? If so that's on wcda prefer
Sent from my Nexus 4 using xda app-developers app

Exodian said:
This happened on my first nexus 4. Nothing fixed it. Nothing. Hopefully your situation is different. If nothing works, flash back to stock and start the RMA process. Google said it was a hardware failure with mine by the way.
Sent from my Nexus 4 using xda premium
Click to expand...
Click to collapse
Did your happen when you first got it or after you had it for awhile? And what's the RMA process
Sent from my Nexus 4 using xda app-developers app

The periodic loss of signal was there since day. I still have it on my new one. Others do as well, but one day it went out and never came back on. I believe it was a different issue than just random signal loss. Google said hardware failed in it. You have to contact Google to start an RMA. I'm also not implying that your signal won't come back on at some time either. Personally I would flash everything back to stock. Go to a t mobile store and get a new Sim card and if no signal still then contact Google
Sent from my Nexus 4 using xda premium

Under settings, then data, then mobile networks, then to network operators.
let it search, even if it doesn't find anything or errors.
Then click choose automatically.
If you frequently travel out of 3g/H areas, you need that checked or the phone won't roam from tower to tower. you will get no signal.
Also, if that don't work, you can try clicking on a network it finds, and let it register, your signal may come back.
This is a common problem with those that don't live in big cities or near full strength 3g/h areas.
The phone doesn't handle tower handoffs well. Crappy LG modems.

Exodian said:
The periodic loss of signal was there since day. I still have it on my new one. Others do as well, but one day it went out and never came back on. I believe it was a different issue than just random signal loss. Google said hardware failed in it. You have to contact Google to start an RMA. I'm also not implying that your signal won't come back on at some time either. Personally I would flash everything back to stock. Go to a t mobile store and get a new Sim card and if no signal still then contact Google
Sent from my Nexus 4 using xda premium
Click to expand...
Click to collapse
Thank for your help that what I'll have to do only problem is I traded an s3 for this phone on CL so if it hardware I think I'm SOL but thanks for your help
Sent from my Nexus 4 using xda app-developers app

kthejoker20 said:
Under settings, then data, then mobile networks, then to network operators.
let it search, even if it doesn't find anything or errors.
Then click choose automatically.
If you frequently travel out of 3g/H areas, you need that checked or the phone won't roam from tower to tower. you will get no signal.
Also, if that don't work, you can try clicking on a network it finds, and let it register, your signal may come back.
This is a common problem with those that don't live in big cities or near full strength 3g/h areas.
The phone doesn't handle tower handoffs well. Crappy LG modems.
Click to expand...
Click to collapse
I tried this and when I click T-Mobile or att it says this sim card can not pick up a connection but the sim card works on other T-Mobile phones
Sent from my Nexus 4 using xda app-developers app

castro08 said:
I tried this and when I click T-Mobile or att it says this sim card can not pick up a connection but the sim card works on other T-Mobile phones
Sent from my Nexus 4 using xda app-developers app
Click to expand...
Click to collapse
Try getting a new Sim from t mobile and reflashing the radio
Sent from my Nexus 4 using xda premium

Exodian said:
Try getting a new Sim from t mobile and reflashing the radio
Sent from my Nexus 4 using xda premium
Click to expand...
Click to collapse
Thanks will do but why would my sim card work on other phones and other sims not work on mine
Sent from my Nexus 4 using xda app-developers app

castro08 said:
Thanks will do but why would my sim card work on other phones and other sims not work on mine
Sent from my Nexus 4 using xda app-developers app
Click to expand...
Click to collapse
Most likely wouldn't but it would be one more "possible" problem eliminated.
Sent from my Nexus 4 using xda premium

Exodian said:
This happened on my first nexus 4. Nothing fixed it. Nothing. Hopefully your situation is different. If nothing works, flash back to stock and start the RMA process. Google said it was a hardware failure with mine by the way.
Sent from my Nexus 4 using xda premium
Click to expand...
Click to collapse
I'm currently going through the RMA process over virtually the exact same issue. However, I've been running franco's nightlies lately and up until he restored the HSIC/wifi stuff to stock in r154 I was actually experiencing less data drops and rapid tower swapping (constantly going from 3g to H and back rendering consistent data inoperable). *shrug* I feel as if it's something in the hardware on the cusp of failing because sometimes it does it more and sometimes it does it less. It's rather weird. I'm also on T-mobile towers through an MVNO (Straight Talk).

I just cancelled and switched to ATT go phone.
I have RMA'd 2 devices, tried multpie new simcards, relflashed, tried new radios, and nothing worked.
It no longer switches from 3g to H on ATT network.
It stays in H constantly.
Also, no more signal drops or loss of signal.
I have 100% signal all the time now.
The data is a little more expensive, but worth it for the coverage so far.
It's not your phone, it's the tmobile network.

T- MOBILE Sim Card Problem

Hello Guys... i have bought a at&t galaxy s4... the phone was locked to at&t i bougth an unlock code on ebay.. cuz i want to use the phone on t mobile... when i inserted a t mobile sim card.. the phone says no sim.. so i get a sim card from simplemobile then so i put simplemobile sim card and phone ask me for a unlock code i put the code i bougth on ebay.. and says unlock sucefully .. now i can use simplemobile... but when i try using my t mobile sim card the phone still saying no sim.. i also try my friends sim card he is using a S4 too... and still says no sim.. the i try my father's t mobile sim card and the same no sim
does anyone can help me please.. i have my plan whit t mobile.. i dont want to switch to simplemobile

The SIM card may be locked to the device it was activated on. I suggest going to a T-Mobile store to see if they can help.
Sent from my SAMSUNG-SGH-I337 using XDA Premium 4 mobile app

graydiggy said:
The SIM card may be locked to the device it was activated on. I suggest going to a T-Mobile store to see if they can help.
Sent from my SAMSUNG-SGH-I337 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
i tried 3 sim card ... DId they lock all the sim cards?? .. thanks for the suggest i will go to t mobile today

It is likely that they lock the cards to the device that the card is activated with. It seems like it is the only possible reason that you can't use T-Mobile cards.
Sent from my SAMSUNG-SGH-I337 using XDA Premium 4 mobile app

I went to t-mobile. They tried another sim car and the phones was the same no sim... the said that the problem was with the phone cuz the sim cards are news and working on other phones... i dont know why the problem is only with t-mobile sim cards.. they say that if the phone was from t-mobile they could change me for another phone but it is at&t.... do u you think that it will be any problem if i go to at&t and tell the that my phone is unlocked but it doesnt read t-mobiles' sim cards
Sent from my SAMSUNG-SGH-I337 using XDA Premium 4 mobile app

They could help. Might as well try. It is a very weird situation. If other SIM cards are working with it, it shouldn't be the phone...
Sent from my SAMSUNG-SGH-I337 using XDA Premium 4 mobile app

Yes the problem is only with t-mobile... but i will take the phone to at&t tomorrow
Sent from my SAMSUNG-SGH-I337 using XDA Premium 4 mobile app

Is it possible that you didn't unlock all the bands on your device? There is a tutorial around here somewhere that shows how to unlock all the bands for use with absolutely any carrier. From my understanding it is different then just unlocking with a code.
Sent from my SAMSUNG-SGH-I337 using XDA Premium 4 mobile app

Yes but it should said invalid sim car or ask me for that code when i insert t-mobile sim card... but the phones says no sim.. it doesnt even read the sim.... and when u unlock with a code i think is like factory unlock cuz my father unlock his phone with a code and his phone works fine
Sent from my SAMSUNG-SGH-I337 using XDA Premium 4 mobile app

graydiggy said:
Is it possible that you didn't unlock all the bands on your device? There is a tutorial around here somewhere that shows how to unlock all the bands for use with absolutely any carrier. From my understanding it is different then just unlocking with a code.
Sent from my SAMSUNG-SGH-I337 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
I went to t-mobile and at&t and they said that the problem was problably with the phone.. and they can do nothing to help me... so i sold the phone.. i will get another
Sent from my SAMSUNG-SGH-I337 using XDA Premium 4 mobile app