hello guys, I do not know if I did some messing around with the radio but can not connect over the 3G network.
My model is a standard a3333 with the last available radio and it connects only in G mode.
what can i do to solve this problem?
i've already done a full reset/wipe of everything before install the last stable cyanogen mod 7.0.2
Thank You
Tom
Your APN settings might be wrong
ShyamSasi said:
Your APN settings might be wrong
Click to expand...
Click to collapse
I checked several times and the settings are correct
As it is a custom rom, u might check if there are any incompatibities / bugs in that.
And there is one more rare possibility. This might not be the thing with u.
In network settings, under network mode, there will be options lie GSM only, WCDMA only, GSM / WCDMA. That option should not be GSM only. Preferred option is GSM / WCDMA. Also try WCDMA only. Check that once. And it also depends on the 3G network availability at that place at that time (since if 3G is unavailable, it will shift to 2G)
Could you check in HBOOT and tell me which Radio you have?
bharatgaddameedi said:
As it is a custom rom, u might check if there are any incompatibities / bugs in that.
And there is one more rare possibility. This might not be the thing with u.
In network settings, under network mode, there will be options lie GSM only, WCDMA only, GSM / WCDMA. That option should not be GSM only. Preferred option is GSM / WCDMA. Also try WCDMA only. Check that once. And it also depends on the 3G network availability at that place at that time (since if 3G is unavailable, it will shift to 2G)
Click to expand...
Click to collapse
i can't find those setting in cyanogen mod 7.0.2..
there is only "use 2g connection" that is not selectioned.
Skye Menjou said:
Could you check in HBOOT and tell me which Radio you have?
Click to expand...
Click to collapse
3.35.20.10
Koori90 said:
i can't find those setting in cyanogen mod 7.0.2..
there is only "use 2g connection" that is not selectioned.
3.35.20.10
Click to expand...
Click to collapse
Ask if anyone has the same issue (with ur radio) in that rom development threads.
And may i know ur hboot version and secure flag.
ok, I do not know how, but yesterday, after it rebooted, it is connected to the 3g
the mysteries of life
thanks anyway guys
Ever found out what was going on? I have cyangenmod 7.0.3, when going to any other rom i lose 3G connectivity. I tried with 7.1 but it doesn't work. settings are correct, flashed differed radio's...
Tried a dozen other rom's, no good.
When i go back to 7.0.3 with nandroid restore there's no problem, anything else and i lose 3G.
Related
Under mobile network type (in settings) it only says LTE. Before, it used to say the actual band such as LTE:14.Is this normal now or did my radio not flash properly?
jakewalker said:
Under mobile network type (in settings) it only says LTE. Before, it used to say the actual band such as LTE:14.Is this normal now or did my radio not flash properly?
Click to expand...
Click to collapse
It's normal. I have the official MK2 bootloader/modem and it says LTE for me too with no band number anymore.
jakewalker said:
Under mobile network type (in settings) it only says LTE. Before, it used to say the actual band such as LTE:14.Is this normal now or did my radio not flash properly?
Click to expand...
Click to collapse
Perfectly normal don't worry - as long as ur on the new model you are O.K.
Best way to know ur doing good is download the speedtest app and test ur speed. If its mega fast - walla All set. The icons change based on what each DEV makes them look like and say in their rom's
Hi everybody,
I'm totally new in this flashing world and I was messing around with my new Xperia Z1 Compact trying to get Kit Kat installed because when I bought the phone it came with JB 4.3. I flashed Latest KitKat Nordic 14.3.A.0.757 unbranded, and everything worked like a charm until I discovered that I lost 4G connection (It only connects to 3G). I went to settings to select network, and LTE is checked.
I was reading about this matter and it seems that nordic ROM doesn't support LTE Band 7 (2600Mhz) which is the band in my carrier. I tried flashing Central Europe Rom and Global rom for journalists found here in the forums. None of them seems to support my LTE band. I want to know if there is any way to recover 4G changing any setting or if you know a link to any generic ROM compatible with LTE Band 7 (2600Mhz), or if there is any way to revert to my original Jellybean 4.3 ROM using PC Companion or Sony Update Service. Any help will be very apreciated.
Hello,
I am using the Generic UK .757 on a BAND4 LTE network in Canada.
you have checked off the first thing to do from the checklist..
second is to make sure your APN settings are correct.
All these are simple, but if still no luck, some labour is in order.
Need to do full wipe and clean re-install
IF you are not rooted, just launch Sony PC companion with the phone NOT CONNECTED and do a repair. It should by default take you to KK
At the time of flashing, You probably had the wrong boxes checked and unchecked in the WIPE and Exclude boxes..
I'll try the two options
Thanks guys for the responses.
First I'll try to flask UK ROM to see if finally I get kitkat working on my phone. If this doesn't work I'll take the second option with PC Companion to restore the original ROM. I'll post the results.
It seems this rom doesn't work for me
GuizmoPhil said:
Hello,
I am using the Generic UK .757 on a BAND4 LTE network in Canada.
Click to expand...
Click to collapse
Hi Phil,
I found UK rom in this forum ver. .681 and flashed it, then I downloaded OTA update to .757. So far the problem remains. I discovered that I was wrong about My LTE Band, is 7 not 4. Apparently there's a carrier in UK with band [email protected] same as here (Colombia), so theorically this rom should work, but this is not the case. I'm trying to change more settings without luck. If you know something to help me, it would be very appreciated. Thanks.
Y2j-Hotaru said:
Hi Phil,
I found UK rom in this forum ver. .681 and flashed it, then I downloaded OTA update to .757. So far the problem remains. I discovered that I was wrong about My LTE Band, is 7 not 4. Apparently there's a carrier in UK with band [email protected] same as here (Colombia), so theorically this rom should work, but this is not the case. I'm trying to change more settings without luck. If you know something to help me, it would be very appreciated. Thanks.
Click to expand...
Click to collapse
Try changing it from the ussd *#*#4636#*#*
Sent from my C6902 using XDA Free mobile app
not able to download original rom
jewelkobayashi said:
you have checked off the first thing to do from the checklist..
second is to make sure your APN settings are correct.
All these are simple, but if still no luck, some labour is in order.
Need to do full wipe and clean re-install
IF you are not rooted, just launch Sony PC companion with the phone NOT CONNECTED and do a repair. It should by default take you to KK
At the time of flashing, You probably had the wrong boxes checked and unchecked in the WIPE and Exclude boxes..
Click to expand...
Click to collapse
Hi jewelkobayashi,
I tried the method you wrote, but, despite the phone being disconnected, it downloaded the same ROM that I recently have flashed (GLOBAL .757 commercial and Journalist). Is there any other way to download the original Phone ROM . I know my original ROM is GLOBAL-14.2.A.1.114 and the customization number is 1281-3723. I haven't found any site to download this exact firmware. If you know something, it would be very appreciated. Thanks in advance.
Are you sure about your customization number? Because it gets changed if you flash another firmware. Here's everything you need to know: http://forum.xda-developers.com/showthread.php?p=52011642 to download your firmware. By the way, what's your country, branding and SI-Number (so I can add your customization number to the list)?
Y2j-Hotaru said:
Hi everybody,
I'm totally new in this flashing world and I was messing around with my new Xperia Z1 Compact trying to get Kit Kat installed because when I bought the phone it came with JB 4.3. I flashed Latest KitKat Nordic 14.3.A.0.757 unbranded, and everything worked like a charm until I discovered that I lost 4G connection (It only connects to 3G). I went to settings to select network, and LTE is checked.
I was reading about this matter and it seems that nordic ROM doesn't support LTE Band 7 (2600Mhz) which is the band in my carrier. I tried flashing Central Europe Rom and Global rom for journalists found here in the forums. None of them seems to support my LTE band. I want to know if there is any way to recover 4G changing any setting or if you know a link to any generic ROM compatible with LTE Band 7 (2600Mhz), or if there is any way to revert to my original Jellybean 4.3 ROM using PC Companion or Sony Update Service. Any help will be very apreciated.
Click to expand...
Click to collapse
Stop flashing random ROMs and check your settings! Unless you have a different model phone than the rest of us (there are three, D5503, M51w and SO-02F), then ANY Z1C (D5503) ROM will work, but they come with different APN lists as bundling every carrier in the worlds APN settings would be a waste of space. Go to Settings > Mobile Networks > Access Point Names, and edit or create the correct APN in there. Look at a friends phone or on your carriers website for the correct settings. This is your problem, no doubt about it.
Please note that some carriers (mine included) have a special APN for LTE. E.g. standard is internet.tele2.se, LTE is 4g.tele2.se on my carrier.
...I have no idea where you're getting your data from, because literally every LTE network in the Nordics uses band 7.
Finally it worked
Rekoil said:
Stop flashing random ROMs and check your settings! Unless you have a different model phone than the rest of us (there are three, D5503, M51w and SO-02F), then ANY Z1C (D5503) ROM will work, but they come with different APN lists as bundling every carrier in the worlds APN settings would be a waste of space. Go to Settings > Mobile Networks > Access Point Names, and edit or create the correct APN in there. Look at a friends phone or on your carriers website for the correct settings. This is your problem, no doubt about it.
Please note that some carriers (mine included) have a special APN for LTE. E.g. standard is internet.tele2.se, LTE is 4g.tele2.se on my carrier.
...I have no idea where you're getting your data from, because literally every LTE network in the Nordics uses band 7.
Click to expand...
Click to collapse
Thanks for your response. I verified APN settings with friend's phones and it was identical. Finally I called my carrier's help desk and after some try/error setups with them, they gave me an alternate APN that worked until I came home where 4G icon dissapeared again. Then, I was surprised with helpdesk response when I called them again. "There is no 4G coverage in your home area". O.O What is intriging to me is that the phone displayed 4G all the time when I just bought it (Even with restarts and wherever i was) and this changed only when I flashed a generic rom. Is just a silly assumption, but, is possible that carriers can make things like force 4G icon in their custom roms to make advertising or something like that? Just asking. Anyway, Thanks a lot for the responses.
crohit911 said:
Try changing it from the ussd *#*#4636#*#*
Sent from my C6902 using XDA Free mobile app
Click to expand...
Click to collapse
Emmm do you have a manual to how to use the ussd??
I went into it to check it out, I touched I don't know what...
And now I can no longer connect to my network provider...
(reboot doens't helps, changing to wdmca or gsm or other options doesn't changes, VPN seems ok, I have no signal... )
Help!!!
Ok, this is what I did to screw it all
Go to the ussd *#*#4643#*#*
Go to phone info
Go to setings and Select radio band
It gives me the option of GSM/UMTS band = USA Band
-> I no longer have WCDMA or GSM connection :S
(LTE still works...)
Now, how do I go back to my previous options? or does it has nothing to do with it, and the problem is something else?
EDIT> problem solved, I had to reflash my ftf by just updating the FOTA (not sure I needed this...) and the BASEBAND... Now I am back up and running again.. >D
emilic said:
Ok, this is what I did to screw it all
Go to the ussd *#*#4643#*#*
Go to phone info
Go to setings and Select radio band
It gives me the option of GSM/UMTS band = USA Band
-> I no longer have WCDMA or GSM connection :S
(LTE still works...)
Now, how do I go back to my previous options? or does it has nothing to do with it, and the problem is something else?
EDIT> problem solved, I had to reflash my ftf by just updating the FOTA (not sure I needed this...) and the BASEBAND... Now I am back up and running again.. >D
Click to expand...
Click to collapse
Good to know that your problem is solved, even better you solved it yourself. Sorry for not being able to help, I don't know about that ussd code I shall try.
Sent from my C6902 using XDA Free mobile app
crohit911 said:
Good to know that your problem is solved, even better you solved it yourself. Sorry for not being able to help, I don't know about that ussd code I shall try.
Sent from my C6902 using XDA Free mobile app
Click to expand...
Click to collapse
Actually, there's an app in Google Play that is a shortcut to this ussd code : 4G LTE SWITCH
I have ARC XP 1.3 installed (cyanogenMod 7.2 based, kernel 2.6.32.9-pax0r-CM [email protected]#29, baseband V07u-000-000-MAR-23-2009) . I've noticed that I don't see any network (if I go abroad there will be no roaming). Phone works OK with my operators network. When I go into settings/wireless & networks/mobile networks/network operators i got message "error while searching for network". I'm unable to resolve this. I found a thread about this problem for HTC, It's written that the problem is radio S-off option and CID that has to be fixed with Hboot. After that a new rom flash is required. Anyone know how to do it for LG Optimus me P350?
Redneck1984 said:
I have ARC XP 1.3 installed (cyanogenMod 7.2 based, kernel 2.6.32.9-pax0r-CM [email protected]#29, baseband V07u-000-000-MAR-23-2009) . I've noticed that I don't see any network (if I go abroad there will be no roaming). Phone works OK with my operators network. When I go into settings/wireless & networks/mobile networks/network operators i got message "error while searching for network". I'm unable to resolve this. I found a thread about this problem for HTC, It's written that the problem is radio S-off option and CID that has to be fixed with Hboot. After that a new rom flash is required. Anyone know how to do it for LG Optimus me P350?
Click to expand...
Click to collapse
So no answer? Thanks to dbarrera for advice. Unfortunately; by, by ARC XP. Tried few other ROMs. Some are great, but still have this problem. Installed CM-7-20130301-NIGHTLY-p350. Just a bit slower, but so far everything works fine. It has different baseband (RRO) and I'll stick to it. I had to charge the battery twice in 12 hours, but now the drain is OK (44% of battery after 24 hours and GPS i WiFi working for a while).
I am trying to activate the LTE network but fail to find this option.
My phone is LG-D855. FW - V10e-EUR-XX
I am looking under: Networks -> Tethering & Networks -> Mobile networks -> Network mode
I see GSM/WCDMA auto. I don't see an LTE option.
The LTE is activated in the service provider registration of my device.
How do I activate the LTE option?
Thank you
Tuviya
tuviya said:
I am trying to activate the LTE network but fail to find this option.
My phone is LG-D855. FW - V10e-EUR-XX
I am looking under: Networks -> Tethering & Networks -> Mobile networks -> Network mode
I see GSM/WCDMA auto. I don't see an LTE option.
The LTE is activated in the service provider registration of my device.
How do I activate the LTE option?
Thank you
Tuviya
Click to expand...
Click to collapse
another member has your same problem....
i am running the same firmware as you and i have 4g option....
Maybe you should try to reset the phone...
Sent from from my LG-D855
EpicChineseTime said:
another member has your same problem....
i am running the same firmware as you and i have 4g option....
Maybe you should try to reset the phone...
Sent from from my LG-D855
Click to expand...
Click to collapse
Thank you for the fast answer.
I have done a reset several times but I don't see the LTE option.
Can you specify where can I find it?
I suspect that the firmware version I have hides the LTE. but I am not sure.
I will appreciate it if somebody can direct me on how to activate the LTE
tuviya said:
Thank you for the fast answer.
I have done a reset several times but I don't see the LTE option.
Can you specify where can I find it?
I suspect that the firmware version I have hides the LTE. but I am not sure.
I will appreciate it if somebody can direct me on how to activate the LTE
Click to expand...
Click to collapse
I also have this problem; the LTE option does not show. Another thread mentioned enabling via a service menu but I was unable to access that with 5457#*400#
Seem mad to have this option hidden.
wellsi said:
I also have this problem; the LTE option does not show. Another thread mentioned enabling via a service menu but I was unable to access that with 5457#*400#
Seem mad to have this option hidden.
Click to expand...
Click to collapse
is your phone locked to a carrier? or is it unlocked?
koppee1 said:
is your phone locked to a carrier? or is it unlocked?
Click to expand...
Click to collapse
No; it's an unlocked international model.
On another site I have found that *#*#4636#*#* brings up the service menu and allows me to change the radio bands to include LTE.
The moment I do that, I connect to 4G immeidately; however it won't stay if I reboot the phone or view the standard network mode settings, when it jumps back to 3g.
Cheers
Ian
I have downloaded and installed "4G Switcher" from Google Play
and activated LTE (preferred network type - LTE/GSM/WCDMA). it solved the 4G issue. its not the straight forward solution but it works
You can enable it in the hidden menu
On the 855 dial 3845#*855# then choose :
LTE Only>Modem Settings>RAT Selection
Choose : GSM / WCDMA / LTE Auto
As soon as I selected this my 4G kicked in to life.
Hope it works - enjoy
Nick
works but...
NickBeswick said:
You can enable it in the hidden menu
On the 855 dial 3845#*855# then choose :
LTE Only>Modem Settings>RAT Selection
Choose : GSM / WCDMA / LTE Auto
As soon as I selected this my 4G kicked in to life.
Hope it works - enjoy
Nick
Click to expand...
Click to collapse
I try this and works :laugh:, i have the D855 international from taiwan with v10i-TWN-XX, but... the thing is that every time that reboot or the battery is gone the configuration lost, is possible made this change permanently and that appear the access into preferences network too?
conex79 said:
I try this and works :laugh:, i have the D855 international from taiwan with v10i-TWN-XX, but... the thing is that every time that reboot or the battery is gone the configuration lost, is possible made this change permanently and that appear the access into preferences network too?
Click to expand...
Click to collapse
I've not been able to make it permanent, but I did download a great free little app called "4G Switcher" that you click to directly to open up the developer menu without having to key in the code. It makes swtiching it back to LTE a 2 second job......
lteconfigs
wellsi said:
I've not been able to make it permanent, but I did download a great free little app called "4G Switcher" that you click to directly to open up the developer menu without having to key in the code. It makes swtiching it back to LTE a 2 second job......
Click to expand...
Click to collapse
If you see design 4g option but it always go back on 3g just uninstall the app Lteconfigs and for those who don't have the 4g option look if in you app is the Lteconfigs, if not, just installed ...
fix lte option with build.prop editor
There is a permanent fix but have be rooted. But seeing as rooting and unrooting so simple, that shouldn't be a problem.
Simply use a Prop Build editor to go into the build.prop and change the "telephony.lteOnCdmaDevice” value from 0 to 1. There are two lines on in the G3 build prop. Make sure both have the value of 1. Then save. Then reboot.
I applied this to my G3 problem and now it is completely fixed!! I can select LTE auto and it stays, even on a reboot! I'll basically have to do this everytime i flash a new rom or update but it works!
I'll probably make a YouTube video later today to share the fix.
This is utter bullsh1t from LG. I've just bought a 32Gb model which came with V10X-Euro -XX software on it and I can't select LTE/4G to use on my network. What a flapping joke. I do not wish to root my phone or use an app from the store simply to enable 4G in my phone.
Jeebus! I'm NOT happy ffs
Can't they fix this terrible mistake? It's been months since the device came out
Grr
@homerlovesbeer: Without root, on the D855, you can enable LTE. Follow my guide here: Detailed Guide.
However, if you reboot, or switch to 2G, you will lose LTE and must repeat the process. For those who want to make it permanent, I have found a way to make LTE stay, but it requires root (More explained in the guide).
Yep thanks. I can enable using the service menu however my issue is with LG MAKING me use this method, which is NOT permanent, to enable something which should be accessed through normal means like most G3 devices.
I mean what the hell?
Tried this on my D855 on AT&T but I get an error after dialing.. Won't let me into hidden menu
I foolishly installed V20F-TWN-XX Lolipop 5.0 over my 4.4.2 V10e-EUR-XX on my LG G3 855. I've now lost LTE unless I go through the menu 3845#*855#.
Can anyone recommend a KDZ that will fix this issue, or do I need to go back to 4.4.2 to root my phone installing that backup program and go that direction.. Any help would be appreciated.
homerlovesbeer said:
Yep thanks. I can enable using the service menu however my issue is with LG MAKING me use this method, which is NOT permanent, to enable something which should be accessed through normal means like most G3 devices.
I mean what the hell?
Click to expand...
Click to collapse
If you don't have LTE in RAT selection menu, then either LG still hadn't updated LTEconfigs with your service provider, or your phone's region doesn't match your location.
If you bought the phone intended for different region - well, you are the only one to blame. If not - ask LG support to add your carrier to lteconfigs in next update.
kdp162 said:
Tried this on my D855 on AT&T but I get an error after dialing.. Won't let me into hidden menu
Click to expand...
Click to collapse
Which error occured?
Spazdarn said:
I foolishly installed V20F-TWN-XX Lolipop 5.0 over my 4.4.2 V10e-EUR-XX on my LG G3 855. I've now lost LTE unless I go through the menu 3845#*855#.
Can anyone recommend a KDZ that will fix this issue, or do I need to go back to 4.4.2 to root my phone installing that backup program and go that direction.. Any help would be appreciated.
Click to expand...
Click to collapse
Which region your phone is currently using? Go into "setting->about the phone->software" menu, look at "firmware version". Is it 20F-TWN-XX? If so, check this link (replacing X'es for IMEI):
Code:
http://csmg.lgmobile.com:9002/csmg/b2c/client/auth_model_check2.jsp?esn=XXXXXXXXXXXXXXX
If your suffix looks like this:
Code:
<suffix>ATWNTN</suffix>
, then your phone actually originated from Taiwan, and flashing any KDZ higher than 10h won't help. You need to change region via guide in General, or to delete LTEconfigs. Both require root, so you'll have to downgrade to 4.4.2, root it, etc etc etc...
Spazdarn said:
I foolishly installed V20F-TWN-XX Lolipop 5.0 over my 4.4.2 V10e-EUR-XX on my LG G3 855. I've now lost LTE unless I go through the menu 3845#*855#.
Can anyone recommend a KDZ that will fix this issue, or do I need to go back to 4.4.2 to root my phone installing that backup program and go that direction.. Any help would be appreciated.
Click to expand...
Click to collapse
Funny, but upgrading to Lillipop actually fixed mine so I now have LTE available as an option in the mobile network settings where before the update I had to force LTE in the service menu. Same 4.4.2 V10e-EUR-XX as yours previously.
homerlovesbeer said:
Funny, but upgrading to Lillipop actually fixed mine so I now have LTE available as an option in the mobile network settings where before the update I had to force LTE in the service menu. Same 4.4.2 V10e-EUR-XX as yours previously.
Click to expand...
Click to collapse
I had to go back to 4.4.2, root it, install twrp, install lollipop through that while also installed SU.
All this just to keep my root, to allow me to edit my build.prop file while allowed me to reintroduce my LTE functionality.
Quite a lot of messing about! Next time I won't be so eager to change!
I messed up engineering mode and now I can't use network while on 4g, tried resetting. Volte is not working so I can only access 2g. someone pls help
Little more detail might help reflash stock
Have you check if either you set it to 2G only?
Nazri786 said:
Have you check if either you set it to 2G only?
Click to expand...
Click to collapse
yeah i have checked that and even reset my phone many times but it doesnt work...
jefffrom said:
Little more detail might help reflash stock
Click to expand...
Click to collapse
i dont understand "reflash stock", little new to tech here
Try download miui hidden setting app and check on the radio band mode... There is settings for region, preferred mode.... Try set it according to your current region...