[Q] 3G mobile data is not working - Xperia Arc Q&A, Help & Troubleshooting

I've flashed Xperia Z Jelly Bean v4 (this one http://forum.xda-developers.com/showthread.php?t=2267230&highlight=data) on my Arc S and I can say its so fast and so beautiful.
The only problem I have is that I cant connect to mobile data 3G however my APN settings are correct
I flashed BB-77 too as recommended by one of the users in the thread and it didnt work as well
So what should I do now ?
Thanks

Were you able to use the 3G connection before this ROM?
My current advice - Ask from your operator, if the 3G connection is enabled for you.

Someguyfromhell said:
Were you able to use the 3G connection before this ROM?
My current advice - Ask from your operator, if the 3G connection is enabled for you.
Click to expand...
Click to collapse
Are you sure you have "Data enabled"? Try to reboot your phone.

Someguyfromhell said:
Were you able to use the 3G connection before this ROM?
My current advice - Ask from your operator, if the 3G connection is enabled for you.
Click to expand...
Click to collapse
Yes I was able to use 3G before this ROM and i contacted my operator and 3G is enabled already
Does that have anything to do with the baseband ??

ChillToucH said:
Are you sure you have "Data enabled"? Try to reboot your phone.
Click to expand...
Click to collapse
Already did that and yes im sure data us enabled

Does this issue have anything to do with the baseband ??

MohamedMordi said:
Does this issue have anything to do with the baseband ??
Click to expand...
Click to collapse
Well, if in the thread you downloaded it from was nothing more to flash, then nop.
I said it because in GB Roms you must flash an additional libraries, but i dont had used CM10 based ROMs so i can just can guess, check the baseband threads.
By the way, sometimes my phone "losses" the data connection for a while (the icon dessapear even if the data connection is active). It just happen like 2 times since a got it, but after some time it comes back.

Flash latest stock 4.0.4 and then install Xperia Z Jelly Bean v4.

17th_angel said:
Well, if in the thread you downloaded it from was nothing more to flash, then nop.
I said it because in GB Roms you must flash an additional libraries, but i dont had used CM10 based ROMs so i can just can guess, check the baseband threads.
By the way, sometimes my phone "losses" the data connection for a while (the icon dessapear even if the data connection is active). It just happen like 2 times since a got it, but after some time it comes back.
Click to expand...
Click to collapse
Well, in the thread I flashed something called Xperia Arc S 4.1.B.1.13 Vodafone DE firmware and they said it's for increasing system and data memory for Arc user and latest BB. You think this is the problem ?!

the phone is not set to gsm only?
look at settings - more - mobile network - uncheck 2g
also look at the accesspoin and choose the right one

Guys please this is really urgent and I did everything I could
Last thing i did was flashing every stock thing on the phone, stock GB, stock kernel, stock baseband and nothing changed and data mobile is still not working

You can try to input the apn by yourself
Sent from my Xperia Arc S using xda app-developers app

already did!
Please guys I need some advanced solution for that. Thanks

Related

[Q] Crazy Johns/Vodafone APN settings???

Hi Everyone,
My Phone:
Lt15i
Baseband 70
Stock kernel with CWM
Arconium ICS
My Problem:
After going to a custom rom and kernel from a complete stock setup I cannot get a data conection on my phone. All other features work perfectly (Call, sms, wifi etc) just no 3g/2g data connection, or icon in the status bar. the Settings menu indicates it is turned on.
I have exhausted all available options regarding kernel/rom troubleshooting including a complete reinstall on the above rom/kernel. I also experienced this problem with other roms and kernels.
During setup I follow the setup app and download the apn settings for Crazy Johns (my carrier) and they report as being installed.
My question:
If anyone who is using Crazy Johns currently and has it working could please post their apn settings (text or screen shot whatever is easier) so I can compare these to mine and change as necessary.
Any and all suggestions for fixing this are welcome.
ajgftw said:
Hi Everyone,
My Phone:
Lt15i
Baseband 70
Stock kernel with CWM
Arconium ICS
My Problem:
After going to a custom rom and kernel from a complete stock setup I cannot get a data conection on my phone. All other features work perfectly (Call, sms, wifi etc) just no 3g/2g data connection, or icon in the status bar. the Settings menu indicates it is turned on.
I have exhausted all available options regarding kernel/rom troubleshooting including a complete reinstall on the above rom/kernel. I also experienced this problem with other roms and kernels.
During setup I follow the setup app and download the apn settings for Crazy Johns (my carrier) and they report as being installed.
My question:
If anyone who is using Crazy Johns currently and has it working could please post their apn settings (text or screen shot whatever is easier) so I can compare these to mine and change as necessary.
Any and all suggestions for fixing this are welcome.
Click to expand...
Click to collapse
tried hitting up there web site and getting them sent to your device manualy?
PVy.
pvyParts said:
tried hitting up there web site and getting them sent to your device manualy?
PVy.
Click to expand...
Click to collapse
Yeah, tried getting it sent to me, entering it in manually, even tried entering various variations of it I had found on the net. Still no connection.
Everything worked perfectly when it was stock, and when i first flashed a new rom onto the phone (arconium 8.2 i think) it worked then too. but every rom since it hasn't.
I'm still quite new to this and my knowledge isnt too deep yet.
Could flashing roms or kernels effect the serial numbers of my phone or something and now my carrier doesn't recognize my phone?
I do still receive calls and sms...
It's got me beat!
ajgftw said:
Yeah, tried getting it sent to me, entering it in manually, even tried entering various variations of it I had found on the net. Still no connection.
Everything worked perfectly when it was stock, and when i first flashed a new rom onto the phone (arconium 8.2 i think) it worked then too. but every rom since it hasn't.
I'm still quite new to this and my knowledge isnt too deep yet.
Could flashing roms or kernels effect the serial numbers of my phone or something and now my carrier doesn't recognize my phone?
I do still receive calls and sms...
It's got me beat!
Click to expand...
Click to collapse
Hmmm I think you phone is fine must be just the settings.
What does it say? Any errors? Can you grab a log too see if it says something there. Check my Sig for how to get logs etc.
Pvy
Sent from my LT18i using xda premium
Solved....Hopefully.
pvyParts said:
Hmmm I think you phone is fine must be just the settings.
What does it say? Any errors? Can you grab a log too see if it says something there. Check my Sig for how to get logs etc.
Pvy
Sent from my LT18i using xda premium
Click to expand...
Click to collapse
Well props to you, you were right in suggesting it was settings related. I tried a different sim card from a different carrier and after following the setup procedure I had a 3g data connection. This of course means the problem lies with my sim card/carrier settings and not the rom or kernel.

Xperia arc s reboot probleme

I have a little problem with m'y lt 18i when i try to make a phone call or i receive one thé reboot (yes a little problem ) when i had a stock rom il solved the problem by choosing wcdma only in network options now that's i have a cm 10 based ROM il dont know how to resolve it .
Dose anyone knows why this happen and what i can do ?
Sent from my Xperia Arc S using xda app-developers app
Wow. OK, there are 2 ideas that may help...
The one that should help a lot is to flash a base-band from this thread http://forum.xda-developers.com/showthread.php?t=1688049
The baseband suggested by CM10 teams is "72", but I know from experience that "77" works perfectly well.
After you flash the baseband (using flashtool), you need to flash the libs that go with it (using CWM).
The other idea is to go to "Settings", then the "More..." option just below "Data Usage", then "Mobile networks", then tick "Use only 2G networks".
This is the same as your earlier work-around, so it may or may not work.
Good luck
Hotfingers said:
Wow. OK, there are 2 ideas that may help...
The one that should help a lot is to flash a base-band from this thread http://forum.xda-developers.com/showthread.php?t=1688049
The baseband suggested by CM10 teams is "72", but I know from experience that "77" works perfectly well.
After you flash the baseband (using flashtool), you need to flash the libs that go with it (using CWM).
The other idea is to go to "Settings", then the "More..." option just below "Data Usage", then "Mobile networks", then tick "Use only 2G networks".
This is the same as your earlier work-around, so it may or may not work.
Good luck
Click to expand...
Click to collapse
thank you for your replay , i just flashed the 77 baseband and and the lib file , but still have the same probleme and when i choose 2g only the phone reboot again
should i maybe clear cache after flashing ?
edit even after clear cache and data the problem persist
Ok, then there's one last idea that might help.
http://forum.xda-developers.com/showthread.php?t=1836071
There's a stock rom at the above thread that could maybe get your phone back to the way it was...
Otherwise you can search for threads that have images of stock roms.
Oh yes, one other thing.. if you are running pdroid, then be careful how you set it up. (I've made some weird mistakes trying my luck with permissions)
I hope you are not stuck with only SMS and whatsapp..
sent from my JellyBeaned LT15i using xda app
usama1919 said:
I have a little problem with m'y lt 18i when i try to make a phone call or i receive one thé reboot (yes a little problem ) when i had a stock rom il solved the problem by choosing wcdma only in network options now that's i have a cm 10 based ROM il dont know how to resolve it .
Dose anyone knows why this happen and what i can do ?
Sent from my Xperia Arc S using xda app-developers app
Click to expand...
Click to collapse
simple: make full wipe and install stock kernel with shipped rom. If your phone reboot again, then it's hardware problem
rod555 said:
simple: make full wipe and install stock kernel with shipped rom. If your phone reboot again, then it's hardware problem
Click to expand...
Click to collapse
i d love to keep the jelly bean rom , my phone is just flying everything is very smooth . i'm not sure if it's a hardware problem cause as i said with stock rom and roms based on stock like sparta charge i had only to choose wcdma only and everything worked nice , i'll try to change the sim card to see if that makes change
and thank you for your replys
my arc s reboots when it is on 2G. there is no problem on 3G. how can i fix this problem? i tried all stock roms and cm10. please help me.
Hotfingers said:
Wow. OK, there are 2 ideas that may help...
The one that should help a lot is to flash a base-band from this thread http://forum.xda-developers.com/showthread.php?t=1688049
The baseband suggested by CM10 teams is "72", but I know from experience that "77" works perfectly well.
After you flash the baseband (using flashtool), you need to flash the libs that go with it (using CWM).
The other idea is to go to "Settings", then the "More..." option just below "Data Usage", then "Mobile networks", then tick "Use only 2G networks".
This is the same as your earlier work-around, so it may or may not work.
Good luck
Click to expand...
Click to collapse
Thanks you

[HELP] My phone constantly switches to CDMA and than has no signal

Hello I bought my phone off of ebay it was already flashed with tasks rom when I got it and the only problem I have which is very annoying is that it constantly switches from LTE/GSM/CDMA to CDMA only when I goto settings>more>mobile networks...Whenever there is no signal it is set to CDMA only I'm not sure what the problem is but its very frustrurating when I cant make calls when I need to...Is this a known problem? Will I have to revert back to stock?
n023b said:
Hello I bought my phone off of ebay it was already flashed with tasks rom when I got it and the only problem I have which is very annoying is that it constantly switches from LTE/GSM/CDMA to CDMA only when I goto settings>more>mobile networks...Whenever there is no signal it is set to CDMA only I'm not sure what the problem is but its very frustrurating when I cant make calls when I need to...Is this a known problem? Will I have to revert back to stock?
Click to expand...
Click to collapse
who is your carrier and what APNs are installed? also, you're in a GSM forum
xBeerdroiDx said:
who is your carrier and what APNs are installed? also, you're in a GSM forum
Click to expand...
Click to collapse
My carrier is Fido (GSM) its the same as at&t in the US or Rogers in Canada
By APNs do you mean Access Point Names? If so there are three options
Fido Default
fido-core appl1.apn which is the one I use since I use LTE
Fido Internet
internet.fido.ca
Fido tethering
isp.fido.apn
n023b said:
My carrier is Fido (GSM) its the same as at&t in the US or Rogers in Canada
By APNs do you mean Access Point Names? If so there are three options
Fido Default
fido-core appl1.apn which is the one I use since I use LTE
Fido Internet
internet.fido.ca
Fido tethering
isp.fido.apn
Click to expand...
Click to collapse
Fido's website says to use LTEMOBILE.APN if you have an LTE device
http://www.fido.ca/web/content/phonewarranty/configure_unlocked_device_guide&lang=en
xBeerdroiDx said:
Fido's website says to use LTEMOBILE.APN if you have an LTE device
http://www.fido.ca/web/content/phonewarranty/configure_unlocked_device_guide&lang=en
Click to expand...
Click to collapse
Just checked although its named after the core one it has the LTE settings I've been using LTE fine
Even though the settings were the same I still made a new profile for LTE and its having the same problems Sometimes toggling airplane mode or restarting the phone seems to fix it
Again the problem is that the phone constantly loses signal and the mobile network setting says "CDMA only" if I change it back to LTE/GSM/CDMA sometimes the signal will come back
n023b said:
Even though the settings were the same I still made a new profile for LTE and its having the same problems Sometimes toggling airplane mode or restarting the phone seems to fix it
Again the problem is that the phone constantly loses signal and the mobile network setting says "CDMA only" if I change it back to LTE/GSM/CDMA sometimes the signal will come back
Click to expand...
Click to collapse
the fact that your gsm device has built in options for cdma and consistently tries switching to cdma (which is probably why you lose service) tells me something needs to change. on your i747m, what is your baseband version? also, what is your android/task650 release?
xBeerdroiDx said:
the fact that your gsm device has built in options for cdma and consistently tries switching to cdma (which is probably why you lose service) tells me something needs to change. on your i747m, what is your baseband version? also, what is your android/task650 release?
Click to expand...
Click to collapse
I can't believe I forgot to mention what kind of phone it was its not the Canadian model... I bought the phone off of ebay it is an at&t SGH-I747 the phone already had the custom rom on it when I got it.
The baseband version is i747UCDLK3
Kernel version:
30.0.68-underwear kernel
[email protected] #1
Sun Mar 10
AOKP version
d2att (4.2.2 jdq39) build 3.10.2013
n023b said:
I can't believe I forgot to mention what kind of phone it was its not the Canadian model... I bought the phone off of ebay it is an at&t SGH-I747 the phone already had the custom rom on it when I got it.
The baseband version is i747UCDLK3
Kernel version:
30.0.68-underwear kernel
[email protected] #1
Sun Mar 10
AOKP version
d2att (4.2.2 jdq39) build 3.10.2013
Click to expand...
Click to collapse
oh wow, so you literally just bought that on ebay. unfortunately, when buying a device thats already rooted and running a custom ROM, you dont know the procedures used when that ROM was installed. there's a wrong and right way to do it so as to have a smooth running phone with little or no complications. I would make a backup in recovery and then try a different modem or reflash the ROM and google apps (gapps) again. is the ROM and gapps files (.zips) still on the phone?
xBeerdroiDx said:
oh wow, so you literally just bought that on ebay. unfortunately, when buying a device thats already rooted and running a custom ROM, you dont know the procedures used when that ROM was installed. there's a wrong and right way to do it so as to have a smooth running phone with little or no complications. I would make a backup in recovery and then try a different modem or reflash the ROM and google apps (gapps) again. is the ROM and gapps files (.zips) still on the phone?
Click to expand...
Click to collapse
I updated the rom the other day and had to reinstall gapps so yes I'll try flashing other radios.
I went to *#*#4636#*#* and set the radio to GSM/LTE and the phone still drops the signal and doesnt change to WDCDMA...
Edit: Update it will switch to WCDMA
n023b said:
I updated the rom the other day and had to reinstall gapps so yes I'll try flashing other radios.
I went to *#*#4636#*#* and set the radio to GSM/LTE and the phone still drops the signal and doesnt change to WDCDMA...
Click to expand...
Click to collapse
when you updated, did you perform a full wipe? that might fix this whole issue
xBeerdroiDx said:
when you updated, did you perform a full wipe? that might fix this whole issue
Click to expand...
Click to collapse
Yes I did the full wipe, cache wipe, and dalvik cache wipe.. It still has the same problem after I reflashed I'm going to try and flash different radios now.
If that doesn't work whats the next step reverting back to stock and seeing if that works?
n023b said:
Yes I did the full wipe, cache wipe, and dalvik cache wipe.. It still has the same problem after I reflashed I'm going to try and flash different radios now.
If that doesn't work whats the next step reverting back to stock and seeing if that works?
Click to expand...
Click to collapse
Did you format /system?
try unrooting and going back to stock then rerooting.
That worked for me
xBeerdroiDx said:
Did you format /system?
Click to expand...
Click to collapse
Yes I believe I did I went to the official thread and did what it said there
f_E_a_R_e_D said:
try unrooting and going back to stock then rerooting.
That worked for me
Click to expand...
Click to collapse
I'll try that but weird thing...I remember reading somewhere too many open apps may cause signal problems and I just killed all open apps when the signal dropped and about 15 secs later signal was back dont know if this was the problem for sure I'll try again if it happens see if maybe I can narrow it down to a particular app or process

[PROBLEM] 3G Doesn't Work!

Hello everyone,
I currently have an issue with my arc S (LT18i) where 3G doesn't work anymore on any Sony stock ROM. I am aware that my carrier supports the needed basebands, and I am in an area where my service has 3G with full signals. I have tried the following:
I have switched ROMs from ICS and Gingerbread & tried reflashing, but still 3G doesn't work. I have no problems with 2G however.
Changing kernels didn't help too. I normally use LuPuS, but the problem still remains.
I first thought it was a hardware issue, but then I switched to CyanogenMOD and MIUI, 3G works on both ROMs. So it's not a hardware issue.
I still do not know what the problem is. Can anyone help me out? This problem occured just after I flashed LuPuS kernel, and then returning back to stock kernel. Ever since then 3G doesn't work.
Hope I get a solution. Help is appreciated. Thanks!
Did you flash the correct baseband for the ROM? Each Android version works with a different baseband.
僕のLT18iから送られてきた
popthosegaskets said:
Did you flash the correct baseband for the ROM? Each Android version works with a different baseband.
僕のLT18iから送られてきた
Click to expand...
Click to collapse
Never had problems with using various basebands on various ROMs. 64 worked fine on ICS, 77 worked fine on GB. No issues for me.
popthosegaskets said:
Did you flash the correct baseband for the ROM? Each Android version works with a different baseband.
僕のLT18iから送られてきた
Click to expand...
Click to collapse
I used what comes in the .FTF itself. I even tried flashing with Sony's official flash tool for unlocked bootloaders. I'll try manually flashing basebands and switch them out to see whether that works.
Someguyfromhell said:
Never had problems with using various basebands on various ROMs. 64 worked fine on ICS, 77 worked fine on GB. No issues for me.
Click to expand...
Click to collapse
Gotta check then.
Had you checked in what mode are you?
2G, 2G/3G Prefered, 3G only
Had you configured the APN Settings? In my phone it doesnt donwload anything from 3G/2G until i register the network.
Or perhaps you didnt do all the wipes and some remanent file is causing the problem.
17th_angel said:
Had you checked in what mode are you?
2G, 2G/3G Prefered, 3G only
Had you configured the APN Settings? In my phone it doesnt donwload anything from 3G/2G until i register the network.
Or perhaps you didnt do all the wipes and some remanent file is causing the problem.
Click to expand...
Click to collapse
Residual files seems to be the problem. I have the correct APNs and correct mode. I should try clearing with fastboot.
GMattZ said:
Residual files seems to be the problem. I have the correct APNs and correct mode. I should try clearing with fastboot.
Click to expand...
Click to collapse
Flash a new kernel and do clean install, wipe everything and flash a ROM.
僕のLT18iから送られてきた
Wiping everything off and flashing a new kernel and again wiping and going back to stock ROM worked.
Thanks for all your support guys!
GMattZ said:
Wiping everything off and flashing a new kernel and again wiping and going back to stock ROM worked.
Thanks for all your support guys!
Click to expand...
Click to collapse
hi ... ihave the same problem .. can u please tell me what have you done exactly ?

[Q] (RESOLVED) Slow 3G since installing Cyanogenmod

Hello,
I've just got a Nexus from my father.
Unlock and rooting are OK.
I've made a backup of my stock rom
Then I've installed a cynogenmod 4.4 and see that my 3G download speed is very slow (arround 5Ko/s)
Then I've returned back to my stock rom -> same issue.
I'm in France using Free Mobile (which is using roaming)
Please help me!
EDIT: RESOLVED
I've tryed a new SIM Card and the speed is OK.
Next I used my old sim card, the speed is OK too.
Strange...
I really need help because I am unable to get a good 3G connection.
Have reinstalled the last radio -> nothing
Have reconfigured APN -> nothing better
Really need help, take 1h to dl 20Mo
EDIt: The signal is full
Someone could help me ?
I've found that the issue happens only when I'm in roaming.
If I am connected directly to my provider antenna, no issue.
HeadQuaker said:
I've found that the issue happens only when I'm in roaming.
If I am connected directly to my provider antenna, no issue.
Click to expand...
Click to collapse
Its probably just an issue with your operator, the ROM most likely doesn't have to do anything with it, especially as you said if you flashed the stock radio.
latenightchameleon said:
Its probably just an issue with your operator, the ROM most likely doesn't have to do anything with it, especially as you said if you flashed the stock radio.
Click to expand...
Click to collapse
Sorry but no, like I said, it worked before the flash, and now, it is not working anymore.
In same time, it works really well with my 2nd phone, with the same sim card.

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