Hello modders,
I am considering buying the Xperia Z because I really like the device and software.
However after my first hands-on experience, I have discovered that the c6603 model, sold by our carrier (T-Mobile CZ), seems to have LTE disabled. Although the service menu does show all the supported LTE bands, when I go to Settings-Mobile networks and try to change the enabled networks, only the following options are available:
- WCDMA only
- GSM only
- WCDMA/GSM mode
The question remains, how this is controlled and what can be done to enable the search and support for LTE networks.
Is this stored somewhere in some carrier settings file? Is it carrier specific, so that with some operators, this is enabled automatically, for others it's disabled? Can we change it somehow?
I am not feeling quite well about these options being disabled per-carrier.
Thanks.
I think flashing unbranded firmware will work for you.
Sent from my C6602 using xda premium
I found in the UK, the option was missing on my UK Phones 4U firmware (350).
I thought it was some mods initially, but after applying the Greece FTF unbranded update (434), i got it back, even whilst running the same mods.
I flashed the UK 434 FTF update, and it's missing again, with the same mods.
These are only stock mods, status bar menu icons, reboot mod.
I will re flash the Greece Unbranded FTF and confirm if it's still missing, if it is not missing, for some reason, the UK unbranded FTF's (350 and 434) have it missing.
I flashed the .434 Nordic ftf and the LTE option is there. It wasn't on the original 3 rom.
I can't notice any difference at all that its a Nordic ftf and not a uk one, so I'll stick with this.
if LTE option is missing, it's only the option concealed but LTE is still there.
the culprit may be /vendor/overlay/com.android.phone-res.apk. try delete it after rooting.
otherwise, just ignore it and dial *#*#4636#*#* to enter what mode and you can see LTE options there.
zajDee said:
Hello modders,
I am considering buying the Xperia Z because I really like the device and software.
However after my first hands-on experience, I have discovered that the c6603 model, sold by our carrier (T-Mobile CZ), seems to have LTE disabled. Although the service menu does show all the supported LTE bands, when I go to Settings-Mobile networks and try to change the enabled networks, only the following options are available:
- WCDMA only
- GSM only
- WCDMA/GSM mode
The question remains, how this is controlled and what can be done to enable the search and support for LTE networks.
Is this stored somewhere in some carrier settings file? Is it carrier specific, so that with some operators, this is enabled automatically, for others it's disabled? Can we change it somehow?
I am not feeling quite well about these options being disabled per-carrier.
Thanks.
Click to expand...
Click to collapse
This is controlled by your vendor's customisation of the ROM, I am guessing if they have removed LTE, then they do not support it. Therefore not sure why you would want to add it back, because you will not be able to use it. Because once your vendor supports LTE, I am certain they will send you out an update.
My phone has LTE, my provider has LTE. But I had no LTE on my phone, until I changed the plan I was on. And I couldn't force that on, because the vendor blocked that.
In addition as stated here any generic ROM should give you the phone/ROM in all it's glory, provided your vendor has LTE
Did you choose the correct setting in mobile network
spida_singh said:
I found in the UK, the option was missing on my UK Phones 4U firmware (350).
I thought it was some mods initially, but after applying the Greece FTF unbranded update (434), i got it back, even whilst running the same mods.
I flashed the UK 434 FTF update, and it's missing again, with the same mods.
These are only stock mods, status bar menu icons, reboot mod.
I will re flash the Greece Unbranded FTF and confirm if it's still missing, if it is not missing, for some reason, the UK unbranded FTF's (350 and 434) have it missing.
Click to expand...
Click to collapse
I bought a Phones4U unbranded XZ a few days ago, with a T-Mob contract, and it DOES have the option, it had on when I was on 350 and it still has it now on 434. Perhaps it's related to the APN settings that the carrier sends you OTA? Obviously T-Mob is part of EE which has 4G so that could have done something.
I don't understand why your XZ doesn't have the settings though.
Are you sure you have the Z supporting LTE? There is a LTE and non LTE version on sale.
Sent from my Xperia Z using xda premium
alias_neo said:
I bought a Phones4U unbranded XZ a few days ago, with a T-Mob contract, and it DOES have the option, it had on when I was on 350 and it still has it now on 434. Perhaps it's related to the APN settings that the carrier sends you OTA? Obviously T-Mob is part of EE which has 4G so that could have done something.
I don't understand why your XZ doesn't have the settings though.
Click to expand...
Click to collapse
This was my next question, is it possible that the UK firmware reads the SIM card first and then 'knows' wether your current network is able to run LTE / 4G, if it's not, it only allows you to select the most appropriate setting, in my case GSM / WCDMA
Im on o2, not 4G, but the option was still selectable on my old Xperia V, and the Greece Unbranded Xperia Z FTF.
Have you tried a non 4G SIM / network in your phone to see if you get the option or not? Or could you...just to rule this out? If it is most likely APN related, then am not fussed, as soon as O2 has 4G, i should be able to utilize it
Cheers
spida_singh said:
This was my next question, is it possible that the UK firmware reads the SIM card first and then 'knows' wether your current network is able to run LTE / 4G, if it's not, it only allows you to select the most appropriate setting, in my case GSM / WCDMA
Im on o2, not 4G, but the option was still selectable on my old Xperia V, and the Greece Unbranded Xperia Z FTF.
Have you tried a non 4G ISM / network in your phone to see if you get the option or not? Or could you...just to rule this out?
Cheers
Click to expand...
Click to collapse
I havn't but I'll give it a go for you after work with my Vodafone SIM and let you know.
spida_singh said:
This was my next question, is it possible that the UK firmware reads the SIM card first and then 'knows' wether your current network is able to run LTE / 4G, if it's not, it only allows you to select the most appropriate setting, in my case GSM / WCDMA
Im on o2, not 4G, but the option was still selectable on my old Xperia V, and the Greece Unbranded Xperia Z FTF.
Have you tried a non 4G SIM / network in your phone to see if you get the option or not? Or could you...just to rule this out? If it is most likely APN related, then am not fussed, as soon as O2 has 4G, i should be able to utilize it
Cheers
Click to expand...
Click to collapse
Again only if your provider has locked this part out of the sim card, pretty crap if they did because this can be easily be controlled from within the network. Because when you scan it should show all networks around even ones you can't connect to, if not they have locked certain bands on the sim
I got a new Sony Xperia Z from India for use in America with AT&T
I can receive calls & Texts, internet works only with wifi
I have updated the phone and installed settings for Internet & MMS to use AT&T
Please help..
Have you a market unlocked installed?
Sent from my brain via my keyboard on my Xperia Z
What model and is it an unbranded non-carrier device?
Sent from my Sony Xperia™ Z
What is the problem of Sony? Every time I tried to switch on the data, it never gets ON at the very first attempt.. Everytime I need to go to settings, and toggle between 2G/3G.. It is very annoying.. :'( this was the case with my arc as well so it is indeed Sony's problem.. I can see full range but cannot connect to data even after many attempts.. :'(
Plz don't give me answers that try updating/ repairing.. Already did that..
Sent from my C6603 using xda app-developers app
mandarjoshiin said:
What is the problem of Sony? Every time I tried to switch on the data, it never gets ON at the very first attempt.. Everytime I need to go to settings, and toggle between 2G/3G.. It is very annoying.. :'( this was the case with my arc as well so it is indeed Sony's problem.. I can see full range but cannot connect to data even after many attempts.. :'(
Plz don't give me answers that try updating/ repairing.. Already did that..
Sent from my C6603 using xda app-developers app
Click to expand...
Click to collapse
If it happened with your previous phone, how sure are you that it's the phone's problem itself and not your own mobile carrier's issue?
At my end, there is no such issue as you mentioned. When I toggle data, i get connected right away. No need to tinker with the 2G / 3G toggle unless I want to fall back to 2G mode to conserve battery.
Don't understand you.
You want to switch from 3g to 2g?
When you turn data on it automatically switch to the 3g. And you have lte version, then It should switch to lte. Depends on your settings actually.
If you want to stay on 2g
Go to dial pad and type *#*#4636#*#* then phone information and set from there.
If you want to switch between them then go play store and find an app. I am sure there's one.
Other than that I have no idea what you're talking about cause I've owned arc s, s, tx, t, zl, and now z. No issues at all. Either your apn settings are wrong or sth with your carrier.
You didn't understand.. Whenever I try to switch on the data, it never gets ON at the very first attempt(2G/3G).. I have to go to the settings and change the modes manually between GSM, WCDMA n then data is switched ON. Similar issue was there with Arc also..
Sent from my Xperia Z using xda app-developers app
Do you do FULL WIPES when you repair your phone?
Did you use sus? Sus is better than pcc.
Might be your apn settings? Check for the most updated apn settings for your carrier.
Last choice is flash a unbranded ftf file.
If that doesn't work, flash a rom or sth.
I don't know if it's possible but I read that someone fixed his own phone to make it work in a country with different bands.
My Sony Xperia Z (C6603) is from Europe and there it work on 1900/2100Mhz band for 3G 4G and LTE as well.
I'm in Vancouver now and all the networks work on 1700/2100Mhz for 3G, I don't need more, it's enough to use wa.
I tried to put a Wind sim card in the phone, then even change settings from the *#*#4636#*#* menu but nothing happened.
I can make phone calls but datas don't work.
Just a word:
HELP!!!!!