i used this code and have selected the USA band on the radio band option but i am for india. it was recommended on youtube video to increase cellular speed but after doing this my network us totally gone. and am not getting any network in the search dialogue please help me please
XDA Visitor said:
i used this code and have selected the USA band on the radio band option but i am for india. it was recommended on youtube video to increase cellular speed but after doing this my network us totally gone. and am not getting any network in the search dialogue please help me please
Click to expand...
Click to collapse
Seems that you have changed the frequencies of your mobile network connection.
You may try to change it back to the original frequencies ... if you know the original settings.
If not, you may ask your mobile carrier.
For more detailed help, you have to register on xda and search your device's sepecific forum.
I found some threads about the system menu, you have used to change your mobile network frequencies:
5.1 supporting *#*#4636#*#* by zivoro
[Q] *#*#4636#*#* doesn't work on i9305? How to disable radio? by poggle
Help with 3G over 2100Mhz by daniyalme
No general solution. You have to check for your specific device how to reset the original settings.
Thread closed. Thank you!
Related
Hi All,
I got a Nexus S (I9020T) from US. I am trying to use it in India with a GSM carrier - BSNL ( gsm 900Mhz).
Problem :
When ever I am inserting GSM Sim, it catches the signal (both gsm + data) but after 3-5 minutes only gsm signal is lost. I cannot make or receive calls, it says emergency call only.
I tried to make call, it says "no mobile network available". Where as i could surf the net with 3g data plan.
what I did :
1) I tried to reboot the phone. Still no signal.
2) I tried to remove battery and sim , and put it back and switch on. Still no signal.
3) I tried to dial *#*#4636#*#* . Enter into phone information-->Select preferred network type to - WCDMA preferred, GSM only (all GSM options tried)
and reboot the phone. Still no help.
Please help me. I am completely frustrated.
Regards,
Rajesh
Contact your provider , they might be blocking your device for some reason ...
Have you added the new APN?
(I'm assuming you're on 4.0)
Settings --> More... --> Mobile networks --> Access Point Names --> Press menu button and select "New APN"
Google the APN settings for your provider and input them. Make sure you remember to press menu and SAVE APN when your finished.
krymson0 said:
Have you added the new APN?
(I'm assuming you're on 4.0)
Settings --> More... --> Mobile networks --> Access Point Names --> Press menu button and select "New APN"
Google the APN settings for your provider and input them. Make sure you remember to press menu and SAVE APN when your finished.
Click to expand...
Click to collapse
Im in the same boat tried to set apn wont save no matter what i do. please help.
Hi
krymson0 said:
Have you added the new APN?
(I'm assuming you're on 4.0)
Settings --> More... --> Mobile networks --> Access Point Names --> Press menu button and select "New APN"
Google the APN settings for your provider and input them. Make sure you remember to press menu and SAVE APN when your finished.
Click to expand...
Click to collapse
Hi,
Thanks for reply..
Yes, I added APN..(it automatically appeared) and also I am able to surf the net due to 3G data plan, but strangely i am not able to make any calls nor receive any calls, it says no mobile network available
What is the version of your baseband? You can check it in Settings/About or in Fastboot/Bootloader mode.
What is the model written beneath your battery on the sticker?
anglergab said:
What is the version of your baseband? You can check it in Settings/About or in Fastboot/Bootloader mode.
What is the model written beneath your battery on the sticker?
Click to expand...
Click to collapse
Hi, baseband version - I9020XXKI1
Kernel Version - 3.0.8-g6656123
model -I9020T
The baseband is OK. It supports 900 MHz operation. You should contact your operator regarding this issue, it can happen they use special/non-standard GSM solutions (frequency sets, etc.) which is not supported by this phone.
You can try switching to 2G mode only (you can find this in Settings/Mobile networks).
You should check in this mode the signal in Settings/About/Status (in dBm).
If it's below -100 dBm then signal coverage is poor or unsupported frequencies are used by your operator or your HW radio chip is corrupted.
To rule out the last possibility, you should check your signal and dBm value with a SIM card from another operator.
UMTS functionality is handled by a separate chip (not by GSM radio), so it can happen 3G is OK but GSM (2G) not.
Hi
anglergab said:
The baseband is OK. It supports 900 MHz operation. You should contact your operator regarding this issue, it can happen they use special/non-standard GSM solutions (frequency sets, etc.) which is not supported by this phone.
You can try switching to 2G mode only (you can find this in Settings/Mobile networks).
You should check in this mode the signal in Settings/About/Status (in dBm).
If it's below -100 dBm then signal coverage is poor or unsupported frequencies are used by your operator or your HW radio chip is corrupted.
To rule out the last possibility, you should check your signal and dBm value with a SIM card from another operator.
UMTS functionality is handled by a separate chip (not by GSM radio), so it can happen 3G is OK but GSM (2G) not.
Click to expand...
Click to collapse
Thanks for reply..n helping me out.
I believe my carrier BSNL uses standard GSM frequencies..samsung note, galaxy series pretty much work with it.
I tried switching to 2G mode, same problem.
I checked signal strength : it varies from -91dBm to -93dBm.
I inserted other GSM carrier SIM , same problem - no signal.
This Nexus S mobile was working fine with T-mobile when I was in USA.
It seems some Hardware radio incompatibility or something else..God Knows!!
Hi
Rajeshandroid said:
Thanks for reply..n helping me out.
I believe my carrier BSNL uses standard GSM frequencies..samsung note, galaxy series pretty much work with it.
I tried switching to 2G mode, same problem.
I checked signal strength : it varies from -91dBm to -93dBm.
I inserted other GSM carrier SIM , same problem - no signal.
This Nexus S mobile was working fine with T-mobile when I was in USA.
It seems some Hardware radio incompatibility or something else..God Knows!!
Click to expand...
Click to collapse
One thing i noted, it identifies the carrier correctly in Settings-->About-->Status-->Network
IMEI(*#06#) shows different from the IMEI written under battery.
Are you using Custom Rom?
Why IMEI difference between device screen and behind battery ? something wrong is here ...
mahanddeem said:
Why IMEI difference between device screen and behind battery ? something wrong is here ...
Click to expand...
Click to collapse
Your /efs is corrupted and some carriers block generic IMEIs, that's where your issue lies
Sent from my ice cream powered Nexus S
Wrong IMEI
Yes my /efs is corrupted. My IMEI shows 004999010640000.
I came to know it happened due to flashing custom ROMs ( Ohh god why did i flash custom ROM) .
I used CWM. This didn't back up my /efs folder and hence the problem.
Its my bad luck, even i did not read any suggestion to back up /efs folder in any guide for flashing custom ROM.
Its really waste of time and effort on my part to go for Android. So much complexity for just a cellphone.
I would better go for iPhone. (Thank God , no custom IOS).
RIP - my Nexus S.
Thanks everybody for helping me and answering me.
The IMEI can be restored, so your Nexus S can be made registered on your operator's network. Instructions to do so can be found, but it can be illegal in your country. Modifying an IMEI is generally is, but if it's done for restoring purposes, then it might not fall in the same category.
Rajeshandroid said:
So much complexity for just a cellphone.
Click to expand...
Click to collapse
The problem with your statement is, that these are not just cellphones, much more minicomputers (with GSM radio and UMTS modem).
Rajeshandroid said:
I would better go for iPhone. (Thank God , no custom IOS).
RIP - my Nexus S.
Click to expand...
Click to collapse
Android is far better customizable and not proprietary software as iOS. Apple can keep its price unrealistically high. They cost far much than their real value. So they are bought not because their usefulness, rather to show other people that one can afford it.
Hello,
I have searched everywhere and haven't been able to find the boost mobile APNs to make my phone properly work on 4G LTE. If anybody has the correct APNs please send me a message with them. Thank you
element7513 said:
Hello,
I have searched everywhere and haven't been able to find the boost mobile APNs to make my phone properly work on 4G LTE. If anybody has the correct APNs please send me a message with them. Thank you
Click to expand...
Click to collapse
I found this thread about boost mobile APN settings: [Q] APN help Boost Mobile.
No details in there.
Maybe you have to ask the carrier (or search it's web site) to get more details.
And I found this thread: FIXED: Can't send MMS? Sprint / Boost / Virgin Mobile APN Settings Problem!
Maybe this can help.
Good luck !
Thread closed and thank you.
Have had the phone for a week with no success even with rogers support
Gave me the LTE APN and my phone isn't connecting to LTE network, I added it manually still with no success
Sim card connects to LTE in my old xperia with no issues
Network keeps jumping from 3G and 4G
Don't have any clue on my next step and rogers blaming the hardware as they don't have any other resolution
is 4g the same as LTE and maybe I just don't know..is there anything I can do to test the lte antenna? I would like to rule out the hardware but I don't think its the hardware......
any help would be greatly appreciated
Hi
Thanks for writing to us at XDA Assist. Open your dialer and enter this code:
Code:
*#*#4636#*#*
That will open a menu from which you can select Phone Information, once in the Phone Information screen, scroll down and you'll see a drop-down menu where you can select network types, try selecting "LTE only" to see if you can connect to an LTE network.
Also, what phone are we talking about here?
No response in two days, thread closed.
Hi, I recently bought a LG g3 smarthphone and I found out that it's an AT&T version phone, but thankfully it's unlocked. My problem is, that it doesn't get any mobile network. In the setting it says that the Mobile network type this device can use is EDGE, but my local carriers can only provide LTE, GSM and WCDMA. I've tried to solve this on my own, but without luck. The solutions with 3845#*850# or similar codes just woun't work, when I choose any RAT it says: "succsess", but it doesn't change a thing and when I choose LTE only mode the phone blocks my mobile connection and says: "Restricted access changed: Data service is blocked" .
I really need any help, because I cannot see myself using a mobile phone without mobile internet. BTW, my location is Estonia.
romax11 said:
Hi, I recently bought a LG g3 smarthphone and I found out that it's an AT&T version phone, but thankfully it's unlocked. My problem is, that it doesn't get any mobile network. In the setting it says that the Mobile network type this device can use is EDGE, but my local carriers can only provide LTE, GSM and WCDMA. I've tried to solve this on my own, but without luck. The solutions with 3845#*850# or similar codes just woun't work, when I choose any RAT it says: "succsess", but it doesn't change a thing and when I choose LTE only mode the phone blocks my mobile connection and says: "Restricted access changed: Data service is blocked" .
I really need any help, because I cannot see myself using a mobile phone without mobile internet. BTW, my location is Estonia.
Click to expand...
Click to collapse
Hello, thank you for using XDA assist.
Try asking your question here http://forum.xda-developers.com/att-lg-g3/help where you get can get necessary help.
Good luck.
Hi, I recently bought a LG g3 smarthphone and I found out that it's an AT&T version phone, but thankfully it's unlocked. My problem is, that it doesn't get any mobile network. In the setting it says that the Mobile network type this device can use is HSPA, my local carriers can only provide LTE, GSM and WCDMA rat types, I don't know if it's the case. I've tried to solve this on my own, but without luck. The solutions with 3845#*850# or similar codes just woun't work, when I choose any RAT it says: "succsess", but it doesn't change a thing and when I choose "LTE only mode", the phone blocks my mobile connection and says: "Restricted access changed: Data service is blocked" .
I really need any help, because I cannot see myself using a mobile phone without mobile internet. I tried to use 2G, 3G and 4G networks, but none work, nothing appears. Also I tried to fix this problem by flashing a Cloudy ROM wich is lollipop 5.0 and it didn't solve my internet problem. BTW, my location is Estonia.
I really need your help guys, I'm desperate as hell, this is my last option, because I didn't find any other solutions on my own.
Counting on you :3
romax11 said:
Hi, I recently bought a LG g3 smarthphone and I found out that it's an AT&T version phone, but thankfully it's unlocked. My problem is, that it doesn't get any mobile network. In the setting it says that the Mobile network type this device can use is HSPA, my local carriers can only provide LTE, GSM and WCDMA rat types, I don't know if it's the case. I've tried to solve this on my own, but without luck. The solutions with 3845#*850# or similar codes just woun't work, when I choose any RAT it says: "succsess", but it doesn't change a thing and when I choose "LTE only mode", the phone blocks my mobile connection and says: "Restricted access changed: Data service is blocked" .
I really need any help, because I cannot see myself using a mobile phone without mobile internet. I tried to use 2G, 3G and 4G networks, but none work, nothing appears. Also I tried to fix this problem by flashing a Cloudy ROM wich is lollipop 5.0 and it didn't solve my internet problem. BTW, my location is Estonia.
I really need your help guys, I'm desperate as hell, this is my last option, because I didn't find any other solutions on my own.
Counting on you :3
Click to expand...
Click to collapse
I think your a little confused about your network. HSPA IS WCDMA/GSM. You want to just slept gsm/WCDMA/LTE
Sent from my iPhone using Tapatalk
Flashing a ROM is not the solution. AT&T version of the LG G3 covers a limited radio frequency spectrum. It could be that the phone does not cover the frequency of your carrier. Another issue may be with the carrier themselves blocking the IMEI (I know some carriers require registering the IMEI on their network). Of course you must also make sure the carrier has data services available to you.
I kinda have the same problem....
No service.
I've tried everything to no avail.
Help gor a fix.