no 4G in any rom. why why? - Xperia Z Q&A, Help & Troubleshooting

So.. As per title.
I used to have 4G before I unlocked my bootloader and flash cm roms.
In any of the custom rom ( non stock), I don't have any 4G Settings for Internet. I tried manually enter 4G apn to phone, it also work as 3g. Showing h / h+ only.
So I decided to flash back to stock ROM and tried the in-built settings for downloading internet settings.
To my surprise, the APN is different from last time when I had my 3g, but they still works flawlessly. But no matter what, I just don't have any 4g network.
Any idea?
I'm currently using existenz with xz kernel.
Help please. Tia.

Flash stock tft,
Root,recovery,flash rom, and check again
Sent from my C6603 using xda app-developers app

Related

[Q] Thrill mobile data not working !!

The mobile data on my thrill is not working, when i am connected to a wifi network the H+ icon and the signal strength bars are green but when turn wifi off or get disconnect the bars turn white and the H+ sometimes turns black and i cannot connect in the settings i have mobile data checked. Can someone please help me find out the problem? I am also rooted.
Check your access point names in mobile network settings you may have inadvertently changed them there are plenty of posts that can help you here
Sent from my LG-P920 using XDA
Any update on this issue
Sent from my LG-P920 using XDA
Yes the problem was my access point names but they are only working on the stock room can you tell me if this is a known problem with the cyanogenmod RCs.
Thank you
Sent from my LG-P925 using XDA
Warren488 said:
Yes the problem was my access point names but they are only working on the stock room can you tell me if this is a known problem with the cyanogenmod RCs.
Thank you
Sent from my LG-P925 using XDA
Click to expand...
Click to collapse
CM nightlys and RCs are not worth flashing... something always goes wrong with them
Sent from my LG-P925 using XDA
ok thanks alot but one last question about them. I flashed the latest version for P920 and mobile data is only working when i turn on international roaming, should this be a problem?
Did you update your Thrill to the v20 baseband first?
If you flashed a late model O3D ROM on your stock Froyo Thrill, you will have no signal because of the incompatable basebands. You will need to either flash the baseband seperately to a US compatable GB one using LGFlash or similar, or reflash the stock ROM back on it and use the Lg Mobile Updater to load the official v20p Gingerbread update (which includes the currect baseband) before flashing a GB ROM.
Yes I have v20p baseband
Sent from my LG-P925 using XDA
same problem..
so, i bricked my Thrill.. i had help from The dark Lestat to recover it into working condition, but i try and use my data connection.. i get nothing? im using the v21.00b kdz stock rom.. and im from canada.

Wifi problem. need help

I got stock rom and i got problem with wifi. I can' connect to wifi. Pasword is correct (wep)
My friend with same mob and rom connect with no problems.
Sent from my GT-I9001 using xda premium
whats about reflashing the stock rom or in case it wont work afterwards a different android version
and for the future i would suggest u to secure youre wifi with wpa2 passphrase its much more secure than the wpe crypting system
That is not my network. It is from bars in the city. I reflashed rom. And works fine until I root my phone. because of that i using now stock rom unrooted
Sent from my GT-I9001 using xda premium

[Q] 3G on custom ROMs

Hi guys, finally decided to put down my sensation and move onto the Galaxy S III. I'll miss it =[
So I've bought a UK Galaxy S III I9305 from T-Mobile.
I've managed to root and that and it everything was working fine so I thought I'd flash some ROMs and see what one I like. I flashed two of them (Pandoriam and rXTREME). They worked fine except mobile data would not work on either of them. I followed some instructions in the thread which said to turn on GSM only, restart then switch back to WCDMA. But it still wouldn't work. I flashed different radios as well (or modems as they're called for samsungs) and that didn't help either.
I've just flashed a stock 3.1.2 EE firmware and the device is back to complete functionality and the 3G came on immediately. I also noticed when I booted the phone the first thing that popped up was a box asking if I wanted to enable data connections; this never happened on the custom ROMs. I figured it must be me or my device since it didn't work on both ROMs, hence my posting here instead of their threads. Am I doing something wrong here?
Any help appreciated. Cheers.
Did you check the apn settings? When I flashed those roms I had to re enter the settings again
Sent from my GT-I9305 using xda premium
clax6 said:
Did you check the apn settings? When I flashed those roms I had to re enter the settings again
Sent from my GT-I9305 using xda premium
Click to expand...
Click to collapse
Ah this wasn't suggested. If you can be bothered could you possibly outline what I need to do. I know how to get to APN settings, do I just note down what they are now on a stock ROM and set them the same way on a custom ROM?
Thanks.
Here you go http://support.t-mobile.co.uk/help-and-support/index?page=home&cat=SOFTWAREDOWNLOADS
Click the link and follow the instructions and it will be sent and all you need to do is install the configuration settings. Easy
Sent from my GT-I9305 using xda premium
clax6 said:
Here you go http://support.t-mobile.co.uk/help-and-support/index?page=home&cat=SOFTWAREDOWNLOADS
Click the link and follow the instructions and it will be sent and all you need to do is install the configuration settings. Easy
Sent from my GT-I9305 using xda premium
Click to expand...
Click to collapse
Ta much mate

[SOLVED] Restricted access changed

The other thread was closed due to use of Spanish I think...
I'm now suffering with this issue.. My city always had a good signal but from last days it started...
Happens every 5min ... Any tip?
____
Solved. Rooted (JB, finally!), installed Batakang ROM and *#*#4636#*#* (doesn't work at stock JB).. switched to WCDMA only..
Didn't have any disconnection again!
Re: Restricted access changed
Do you upgrade to JB?
Sent from my MB526 using xda premium
Yep but it worked great a few weeks!
is a problem with the quality of the phone network, to me was the same but only in places where the signal was not good, it is a problem of the radio that comes with JB
if we get root.. is it possible to change radio?
Re: Restricted access changed
I think thats a boot loader thing? But if flashing via recovery can then yes.
Sent from my MB886 using xda app-developers app
Even with the locked bootloader?
Re: Restricted access changed
That I highly doubt
Sent from my MB886 using xda app-developers app
I think this is not network fault..
I think that it happens only when the phone gets hot and the 3G is in use.. It won't happen while I'm at wifi
Thanks Dan to root my phone! It is finally working perfectly now
did I miss something, can you all say if it's the phone or network. Have a dual sim Huawei G500 works fine if both slots uses the same network.But once the other network is introduce, problems!!!
Solution
fromanbr said:
Thanks Dan to root my phone! It is finally working perfectly now
Click to expand...
Click to collapse
Hi, i'm having the same problem in colombia, what did you do to solve it?, i'm on stock aT&T JB rom but i have root.
magocop said:
Hi, i'm having the same problem in colombia, what did you do to solve it?, i'm on stock aT&T JB rom but i have root.
Click to expand...
Click to collapse
I installed the mexican retail and the fix radio but I no have good luck, my cellphone drop the signal, try install stock ICS
Sent from my MB526 using xda premium
solved now
Hi, what i did to solve this is installing phone info and with it i can choose the network type. for some reasons when 4g signal isn't good enough it gives that error so i switch to gsm only and i never get that error in my house wich is mainly where it happens.
hope this helps you.
gundam69 said:
I installed the mexican retail and the fix radio but I no have good luck, my cellphone drop the signal, try install stock ICS
Sent from my MB526 using xda premium
Click to expand...
Click to collapse

No 4g help? anyone...

if im on three network, running custom rom and didn't do there ota update for 4g, would this be to do with rom, kernel or radio? (only asking because someone else didn't do ota and there 4g with three network working fine...)
ty
Sent from my HTC One using Tapatalk

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