LG Leon not getting 3G/4G in Spain - General Questions and Answers

Hi,
I am sorry that I post this message in the wrong place, I believe it belongs to this thread
I have just return from US and I got a LG Leon from MetroPCS to sty connected while there. Now that I am back I unlocked the phone via unlock app. My surprise came when I put me Spanish SIM card (Jazztel) and the phone only gets 2g connection. I have been searching the net and I found some threads on the topic but I can not make any of them work on my phone. First I tried changing the radio to Europe mode through *#*#4636#*#*, and I enter the test page but when I click the phone info button I get a message that states that I can not run that application on this device. I thought it was because I wasn't root so I rooted it. But before I could root I had to downgrade by flashing an older firmware. No way, I get the same message. I tried the hidden menu to see if I could find an entry to change the radio mode, or any type of LTE configuration. Hidden menu on my phone though 277634#*#. I also tried the anycut option, but I do not get any facility called LTE configuration or similar.
I am desperate and I do not know how to proceed. Any help is welcome
Thanks in advance

Related

[Q] No signal or No service on Samsung Galaxy S

I noticed that my galaxy was sluggish & decided to preform the solution here: hemorrdroids.net, speed up your Samsung galaxy S
now in the process, i got it wrong several times whiles flashing with the odin. when I finally got it right and reinstalled the firmware, the phone displays a no service notification, but show the name of the network chip in it. no signal bars as if it were locked. I bought it as unlocked phone. now I cant even search for a single network in my country. when u do a manual search, it returns nothing. if u try the dialer it says not registered to network..
does anyone know how to get my signal a GPS working?? please!!!!!!!!!!!!!
Hmm... I've got the same problem as you... Flashed docs to my Galaxy S Yesterday and now it show no service notification.... Anyone who have a got an idea?
I am also facing the same problem. Any one who has solved it ?
Got the same problem, from 1 day i have notification (no service)
Got the same problem plz plz some one helpp
Not sure if it's the same problem you folks are having, but there's a thread on here entitled "Problem with Airplane Mode on Epic after installing midNight ROM" that describes a problem with no signal after a ROM flash, and a solution via using Odin to update just the modem.
I would post a link, but the forum here won't let me because I don't have enough posts. Your mileage may vary, but the symptoms sound similar so it might give you a place to start even if the fix doesn't fix you.
I too am having the same problem. It seems that my Phone (Galaxy SC-02b) does not recognize the modem/internal antena.
I installed the Darky's Rom on it, and it runs great. Except the signal part. I can flash it back to the original, but I want to see if I can make it work.
I think it's just a matter of picking out the correct modem tar, but I can't find the right one. My phone is a little bit odd, It's a Japanese Galaxy, so not sure if I can find it here. Unfortunately my Japanese is not good enough to go scouring the japanese forums.
Thanks for any help.
Hey Yefimenko what 3G bands are used in Japan 1900/850 or maybe 900/2100 or 1700/2100 ? Can you find that out ? then you need to flash modem that supports that , Europe support 900/2100 US/Canada/Australia 850/1900 and AWS 1700/2100 Tmobile US /Wind? mobilicity Canada
Hitec
We've been through all of this before the Japanese phones will only work with the Japanese kernel. Symptoms are usually sin not recognized and no radio signal. QUOTE=yefymenko;11612862]I too am having the same problem. It seems that my Phone (Galaxy SC-02b) does not recognize the modem/internal antena.
I installed the Darky's Rom on it, and it runs great. Except the signal part. I can flash it back to the original, but I want to see if I can make it work.
I think it's just a matter of picking out the correct modem tar, but I can't find the right one. My phone is a little bit odd, It's a Japanese Galaxy, so not sure if I can find it here. Unfortunately my Japanese is not good enough to go scouring the japanese forums.
Thanks for any help.[/QUOTE]
Sent from my SC-02B using XDA Premium App
Either the phone.apk is bad or the modem is incompatible.
You could try the http://romkitchen.org/ and make an update with different modem only.
If your Samsung Galaxy S displays no network/no signal, or emergency calls only, try the following things:
1. flash the device again with the modem image (download the firmware of your device from samfirmwares.com, delete everything from the .tar file except modem.bin, and then flash this file to the phone with Odin (you can get Odin and instructions from that site too)
2. maybe your nv_data.bin file or /efs directory got corrupted, make a backup of the folder, then simply delete nv_data.bin, it will be recreated for you on Galaxy S.
For this, you’ll need root. If you have a root-enabled kernel, like the Voodoo lagfix kernel, you only have to install the Superuser app and Busybox on the phone, download the Android SDK to your PC, install platform-tools in the SDK manager, go to the platform-tools directory and start adb shell.
In the shell, type su, wait for the Superuser prompt to appear on the phone (if it does not appear, open the Superuser app and try executing su again), enable root access for the command. Now go to /efs, copy everything to for example /sdcard/efs, then rm nv_data.bin.
Reflashing the device with a kernel and checking “phone EFS clear” in Odin also works (make sure you made a backup of the EFS folder just in case).
3. you can try changing the CSC (to XEO for Europe): enter *#272*imei# on the phone tab. Note: this will reset your phone to factory settings, so make sure you did a clockworkmod backup before this. Incorrect CSC setting may cause MMS not working also.
4. check if you inserted the SIM card correctly
Thanks
MertBaBaaa
first check imei no
hello for all members,
i have solution for this problem "not network or not signal" Samsng Galaxy SC-02B Docomo
later write my solution phone work all World
__________
XcachorroX
galaksy s no signal
3. you can try changing the CSC (to XEO for Europe): enter *#272*imei# on the phone tab. Note: this will reset your phone to factory settings, so make sure you did a clockworkmod backup before this. Incorrect CSC setting may cause MMS not working also.
this solution works for me and thanks alot many many thanks
maybe i've got a solution for the no service probleme. i tried this code *2767*3855# and my phone works normal now
i hope it works for you guys
No Network after change of CSC - is there a recovery strategy?
SOLVED
======
Asked around and it goes like this: 2.1 + market = no signal, (2.2 or 2.3) + market = no problem
Solution is UPGRADE from 2.1. to 2.2 or better - I hope this will help anyone else with the same problem.
If you can't do it yourself, any mobile shop will for a small fee.
Symptoms
========
Changed CSC from KSA to XSG with code *#272*HHMM# for 2.1 (no Market in KSA mode)
Galaxy S GT-I9000 now shows blue circle with diagonal in notification area at top of screen.
Settings > Wireless and network > Mobile networks Network mode > Network operators > Search Networks or Select Automatically produces no response - finds no networks.
Dialpad dial a number => "Not registered on network"
Coincidental hardware failure seems very unlikely but not impossible I suppose.
What I would like to know is if there is a recovery strategy from here?
Even if it includes installing a complete new firmware? (and possibility to revert to original if required for warranty)
Device does not respond to "3-finger salute" (volume-home-power).
I am not confident that a warranty is worth all that much in this part of the world. It may be quicker and more effective to do it myself.
Further details of history and phone info below.
I will be very grateful if anyone can help me out
History
=======
Phone purchased in Saudi Arabia (KSA). Worked fine with pre-paid SIM (mobily) voice, data, sms, wifi.
Phone also worked fine with a pre-paid sim (cosmote whatsup) in Greece - voice, data, sms, wifi.
However, since phone was purchased in KSA, Android Market was not installed. Found a Market.apk and installed that. Installs but doesn't actually work.
Found code for changing CSC (*#272*HHMM# for 2.1, *#272*[IMEI No]# for 2.2) 2 colleagues had success and no problems with this with a Tab and 2 Ss, albeit with 2.2. The code looks worth a try on 2.1 so I gave it a go.
Had to remove the side-loaded Market before the code would run and changed the CSC from KSA to XSG.
Market pops up on the screen and works fine.
BUT no network. Network name shows in the Notifications though. The GR SIM shows "(No Service)"
Factory reset, returning CSC to KSA do not help.
The mobily SIM works fine in other phones but no known good SIM works in this phone.
Mobily tech support (in store visit, usually commpetent guy who knows me) is completely flummoxed and asks me if I have a warranty.
So now I have a very compact WiFi only tablet
Phone Info
==========
Model number: GT-I9000
Firmware version: 2.1-update1
Baseband version: I9000JXJG2
Kernel version: 2.6.29 [email protected] #2
Build number: ECLAIR.JPJG8
Personalisatiob(sic) Status
Network Lock
[OFF]
Network Subset Lock
[OFF]
SP Lock
[OFF]
CP Lock
[OFF]
Settings > Wireless and network > Mobile networks Network mode > GSM/WCDMA (auto mode)
Solution to your problem
Hi All,
This happened to me before and I was as frustrated as you and when I was about to give up, I tried one last restoration, but only this time I did it correctly. After that, I restored 5 different versions of Samsung Galaxy S stock ROM back to my Samsung Galaxy S. One of these versions were Chinese, and everything was in Chinese.
Samsung Galaxy S had no signal was because the modem file was missing while you were performing the restoration.
Now, all you have to do is go to this page and follow the instructions to restore the Stock ROM back to your Samsung Galaxy S.
same problems
Hi guys, I have same problem. But a litle diffirent.
When I use 2.3.6 firmware version it's work well no problem. But when I use 4.x.x Rom it says no network and no imei. If I use 4.x.x om pluged the charge my device ,I see gsm company and imei number. It's very interesting. I think , electricty not enough for my device. Maybe Its hardware problems. I 'dont any idea.
How can I solve this problem?
Thanks.

[Q] 404 to 4.2 upgrade

I trying to find a working firmware for verizon s3 sch-i535 I have it unlocked using odin. T-Mobile [who I want to use]
confirmed my phone is unlocked but they can't connect because my firmware needs to be updated from 404. I went and tried
to get update but run into webpage not found Does anyone have direct download for updates.
Every site I go to is a big runaround. It can't be that complicated can it? Hope I get some help here. Thanks.
H779 said:
I trying to find a working firmware for verizon s3 sch-i535 I have it unlocked using odin. T-Mobile [who I want to use]
confirmed my phone is unlocked but they can't connect because my firmware needs to be updated from 404. I went and tried
to get update but run into webpage not found Does anyone have direct download for updates.
Every site I go to is a big runaround. It can't be that complicated can it? Hope I get some help here. Thanks.
Click to expand...
Click to collapse
T-Mobile = GSM
"This is not a GSM device, it will not work on any GSM network worldwide."
You can try whatever you want, the phone will only support carriers using CDMA
You can find every firmware that has been officially released at SamMobile
Thankyou. For getting back.I still want to upgrade the firmware 404 is old
H779 said:
Thankyou. For getting back.I still want to upgrade the firmware 404 is old
Click to expand...
Click to collapse
If you already checked SamMobile you saw that you can choose between:
4.1.2
4.3
4.4.2
There is no reason for not using KitKat 4.4.2
Once installed you can flash latest TWRP using ODIN and then flash SuperSU (For root access) using TWRP. Rott access is highly suggested to remove the bunch of bloatware coming with Samsung's firmware and for grant sd card r/w access for all your apps.
I knew that my phone is unlocked so I did a lot of reading and found that if I go into service mode and enable hidden menus that I could
go into mobile networks then choose other networks. There it is GSM! now the next window is a menu to choose band or all bands.
now I took the battery out and installed the T-Mobile Sim powered back up and get a message: Welcome to T-Mobile. Tried making a call
IT WORKS! TEXT ok Internet ok. This was all done while still running stock 404 firmware. I'm no andriod genius and don;t know why all
the posts I've read saying it can;t be done. All I did was use the advise you guys gave did the proper download to unlock and root.
This issue is resolved. Thank you!
H779 said:
I knew that my phone is unlocked so I did a lot of reading and found that if I go into service mode and enable hidden menus that I could
go into mobile networks then choose other networks. There it is GSM! now the next window is a menu to choose band or all bands.
now I took the battery out and installed the T-Mobile Sim powered back up and get a message: Welcome to T-Mobile. Tried making a call
IT WORKS! TEXT ok Internet ok. This was all done while still running stock 404 firmware. I'm no andriod genius and don;t know why all
the posts I've read saying it can;t be done. All I did was use the advise you guys gave did the proper download to unlock and root.
This issue is resolved. Thank you!
Click to expand...
Click to collapse
Gratulations! I was pretty sure its not possible, especially for verizon devices
Yes I was surprised but I am persistent. Drives my wife crazy! Feel free to share this with others.

[Q] Lost 4G after flashing another Stock

Hello guys.
I have a xperia Z3 from VIVO and flashed a rom from OI, everything went well on flashing the rom but after it finished i noticed that i lost my 4G. When i search for network there have a TIM BRASIL LTE but it won't let me register on it.
Do anyone know how to solve that?
Thanks!
Input the correct apn settings from your carrier
LitoNi said:
Input the correct apn settings from your carrier
Click to expand...
Click to collapse
Lito, do you think that would help?
Because the problem is that I am not able to register to the LTE network, it's not related to the ability of using internet.
Actually, this is exactly what happens, after i flash the firmware i have 4G but after a few minutes (Between 5 and 10 minutes) i completelly lose connection to the LTE network, even if it's available in the networks list.
Info
DiegoManBR said:
Lito, do you think that would help?
Because the problem is that I am not able to register to the LTE network, it's not related to the ability of using internet.
Actually, this is exactly what happens, after i flash the firmware i have 4G but after a few minutes (Between 5 and 10 minutes) i completelly lose connection to the LTE network, even if it's available in the networks list.
Click to expand...
Click to collapse
just test firmware of another region
(UK firmware for example)
:good:
DiegoManBR said:
Lito, do you think that would help?
Because the problem is that I am not able to register to the LTE network, it's not related to the ability of using internet.
Actually, this is exactly what happens, after i flash the firmware i have 4G but after a few minutes (Between 5 and 10 minutes) i completelly lose connection to the LTE network, even if it's available in the networks list.
Click to expand...
Click to collapse
Maybe if you explained a bit better that would?
Like mentioned before this post, try to flash only the baseband from another region, hopefully that will solve it.
Geeks Empire said:
just test firmware of another region
(UK firmware for example)
:good:
Click to expand...
Click to collapse
Geeks, there have no other region for my version of the Z3, also i am trying to flash many other rooms from my region and all of them results in a error during the flash... Blank error, no description.
LitoNi said:
Maybe if you explained a bit better that would?
Like mentioned before this post, try to flash only the baseband from another region, hopefully that will solve it.
Click to expand...
Click to collapse
Lito, thanks for the sugestion, i flashed the baseband for the Customized PT and after flash i got the 4G signal for about 30 minutes, but when i rebooted the phone, i completelly lost 4G again, and now in the network lists there is no LTE from TIM. Could it be because i installed an european baseband on a mobile here in brazil?
Thanks agian.
DiegoManBR said:
Lito, thanks for the sugestion, i flashed the baseband for the Customized PT and after flash i got the 4G signal for about 30 minutes, but when i rebooted the phone, i completelly lost 4G again, and now in the network lists there is no LTE from TIM. Could it be because i installed an european baseband on a mobile here in brazil?
Thanks agian.
Click to expand...
Click to collapse
thats weird... are you sure you have the correct APN settings inputted? Also, i would assume youve tried flashing the VIVO's baseband or any other USA roms?
Try the following if you have already done all those: go to dial pad and input *#*#4636#*#* > phone info > menu top right > select radio band > try Australia or USA or what ever pops up > scroll down and make sure LTE/GSM auto is selected or try out the other ones > scroll back up and hit the "run ping test"
if all these doesnt work, i would advise you to go back to the original rom.
just curious, which model number is your Z3?
LitoNi said:
thats weird... are you sure you have the correct APN settings inputted? Also, i would assume youve tried flashing the VIVO's baseband or any other USA roms?
Try the following if you have already done all those: go to dial pad and input *#*#4636#*#* > phone info > menu top right > select radio band > try Australia or USA or what ever pops up > scroll down and make sure LTE/GSM auto is selected or try out the other ones > scroll back up and hit the "run ping test"
if all these doesnt work, i would advise you to go back to the original rom.
just curious, which model number is your Z3?
Click to expand...
Click to collapse
Lito, now i will complicate a little bit more then. First, the model number of my mobile is D6646 from Brazil with DTV.
Also, i tried to flash the Vivo Baseband and it was worse, i did not install any baseband from USA, just from Portugal.
I tried that on the keyboard, but when i chose USA band i just can't even register on any TIM network.
Also, i tried to flash the original rom, but i can't flash any other firmware apart from Oi. I get a blank error line on flashtool for every other rom i tried to install, so it's even worse
Feel the challenge.
Thanks again for all your help.
flash back to the original ROM if you can, also, how did you flash to the new rom? through recovery or Flashtool? if you see a blank space or what ever, you might not have the correct drivers installed on your computer, especially if youre running Windows 8.
that being said, i dont see D6646 in Xperifirm, i cant tell you what to flash and what not to flash. Without that, i wouldnt advise you to flash anything but the original rom that it came with, you dont want to soft/hard brick the device.
LitoNi said:
flash back to the original ROM if you can, also, how did you flash to the new rom? through recovery or Flashtool? if you see a blank space or what ever, you might not have the correct drivers installed on your computer, especially if youre running Windows 8.
that being said, i dont see D6646 in Xperifirm, i cant tell you what to flash and what not to flash. Without that, i wouldnt advise you to flash anything but the original rom that it came with, you dont want to soft/hard brick the device.
Click to expand...
Click to collapse
Lito, I tryied to flash the original room, I am using XperiaFirm to download the firmware and flashtool to flash. I can flash the Oi room, but i can't flash the vivo BR, the Claro Argentina, or the Customized PT, all of them results in a blank error, it's not drivers problems, since i can install the Oi firmware and also i disabled the signature on windows in order to install.
Anyway, i solved the problem in order to show another problem. Here is the situation:
I created another APN to use when i don't want to use internet because even with data package disabled my mobile send data to the carrier that charges me, when i deleted that APN the 4G worked perfectly, but now my carrier is charging me the data . Any idea how to block this data comsumption?
Thanks again.
DiegoManBR said:
Lito, I tryied to flash the original room, I am using XperiaFirm to download the firmware and flashtool to flash. I can flash the Oi room, but i can't flash the vivo BR, the Claro Argentina, or the Customized PT, all of them results in a blank error, it's not drivers problems, since i can install the Oi firmware and also i disabled the signature on windows in order to install.
Anyway, i solved the problem in order to show another problem. Here is the situation:
I created another APN to use when i don't want to use internet because even with data package disabled my mobile send data to the carrier that charges me, when i deleted that APN the 4G worked perfectly, but now my carrier is charging me the data . Any idea how to block this data comsumption?
Thanks again.
Click to expand...
Click to collapse
that is extremely weird, never had such issues with any of my android phones. make sure data roaming is not on, the carrier shouldnt be able to charge you if you disabled data
Also, make sure the FTF files youve made with xperifirm and flashtool are correct, like not including the TA files etc..., i would advise you redownload those FTF files and try again, also make sure you have the latest flashtool available.
at this point, you are probably better seeking for a developer or someone who can read codes, make a logcat and see if the flashtool thread is available and ask there. Aside from the FTF files, you are better off asking the carrier why they are still able to charge you in such way. Sorry man, this is as far I can aid you in this matter. GL bud!

Updating & Unlocking Sprint LG G Flex 2 (LS996)

I purchased a brand new LG G Flex 2 and It dawned on me that it was a Sprint variant LS996, rooted and unlocked. I do not live in the US and the phone is working fine with my local carrier, except that there is no tethering option. It currently has Android 5.1.1 installed and software version is ZV6. Since the phone is rooted, OTA updates download but fail during installation.
Now, what I want to achieve is to update the phone to the latest software version and also retain the carrier unlock. I would be thankful if someone can point me in the right direction. It would also be nice if I am able to make a full backup of my system in its current state so I can revert if things don't well.
Thanks
I am in the same situation with my LG g flex 2, there is no hotspot option.
Follow my back to stock guide with stock images on general section. That should help you to go unroot pretty easy and then ota update. Read through that forum there are several suggestions you may apply too.
Alex_XV6700 said:
Follow my back to stock guide with stock images on general section. That should help you to go unroot pretty easy and then ota update. Read through that forum there are several suggestions you may apply too.
Click to expand...
Click to collapse
Thanks for your reply. From what I understand, I have to flash stock ZV6, OTA update to ZV9, and then flash rooted ZV9. Will I lose the SIM unlock in the process? I have seen some people on another forum claim that they went through this process without losing the SIM unlock. On an another note, I managed to enable tethering by changing network mode to Lab in the LTE settings hidden menu. This also disabled the annoying Hands Free Activation screen. However, the Wi-Fi tethering is limited to 1 user. I tried the suggestion of changing SPR to GLOBAL in build.prop, but I couldn't save the file if I added anymore than three characters in place of SPR. I also tried adding dun to APN type in the LTE settings menu, but found out that APN type is not editable.
anseroid said:
Thanks for your reply. From what I understand, I have to flash stock ZV6, OTA update to ZV9, and then flash rooted ZV9. Will I lose the SIM unlock in the process? I have seen some people on another forum claim that they went through this process without losing the SIM unlock. On an another note, I managed to enable tethering by changing network mode to Lab in the LTE settings hidden menu. This also disabled the annoying Hands Free Activation screen. However, the Wi-Fi tethering is limited to 1 user. I tried the suggestion of changing SPR to GLOBAL in build.prop, but I couldn't save the file if I added anymore than three characters in place of SPR. I also tried adding dun to APN type in the LTE settings menu, but found out that APN type is not editable.
Click to expand...
Click to collapse
You wont lose sim unlock...
Just do the process...
I also deleted some of the folders in carrier and just left the apps and I really dont remember which other cause I sold my phone.

Unable to connect to mobile networks

Greetings, I have created an account in order to seek help directly.
I received a LG P920 phone already rooted on ICS 4.0.4
At this time mobile networks worked and the phone was able to make calls and such. I did a factory reset which led to a recovery-loop so I followed this
http://forum.xda-developers.com/showthread.php?t=2228269
I then obtained CWM 6 using this
http://forum.xda-developers.com/showthread.php?t=2144738
And finally decided to flash Cyanogenmod 11 unofficial
http://forum.xda-developers.com/optimus-3d/development/rom-t2929971
It was at this point that I realized I couldn't connect to networks at all, thinking maybe the ROM was faulty I went for the official CM10 rom (the last nightly available on cyanogenmod), but that did not work either. Tried returning to ICS (v30a) but I couldn't connect to networks.
I've searched a lot of guides to recovering mobile networks but the catch is that most of them talk of lost IMEI numbers, which my phone hasn't lost. I looked into using LG flashtool aswell but all links are broken, be it for the software, the crack or the dll I need to have.
I'm at a loss right now, most of the guides I've seen here are for different purposes other than just getting the mobile networks going.
The SIM card works on another phone. Also, when trying to enter the password it will at times accept anything or not accept anything at all, even if it's the right code. If I search networks, they will be found but I'll just get 'Can't connect to this network right now'
My Baseband reads LGP920AT-00-V30a-EUR-XXX-APR-04-2013 and I'm currently on CM10
update: I have been informed by the previous owner that this phone hasn't been SIM unlocked, which is probably the problem here. Obviously this wasn't going to be so easy as I obtained the code and attempted to unlock it, but for some reason the process was unsuccessful. guess I'm still lost
Thanks in advance

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