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
Hi All,
Got a new xperia Z1 c6906, setup all things, did input correct APN, chose LTE in the mobile setting. But it couldn't get LTE connection, it always go back down to H+ / 3G, always switch between H+ and 3G. just wondering if the baseband problem? or I have to call Fido and ask them to register my IMEI to their LTE network if the phone couldn't do it itself? thx so much anybody can help.
p.s. previously using Samsung SIII, using LTE sim card and sure in LTE area since I didn't move.
*#*#7378423#*#* to check what LTE bands you have.
BTW, you should post this on Z1 forum.
Sent from my C6603 using Tapatalk
Hi all,
I have an unlocked Xperia Z1 on unbranded software version 14.2.A.0.290, using it in the UK on a 4G network.
When I try to select LTE/4G in the network mode menu, the only options I have are:
WCDMA only
GSM only
WCDMA (Preferred)/GSM
As far as I can see online, I should have this option, as there shouldn't be a carrier block on unbranded firmware.
If anyone has any suggestions on how I can turn 4G on, I would be eternally grateful!
Thanks!
Update to .136 first and check again.
i have gt-i9305 network 2g only I can not connect to 3g
Is there a solution
I think the mistake nvm
But I do not have backup file
imei good
i fixed it with this folder
http://forum.xda-developers.com/showthread.php?t=1804117
Check in settings if you have 2G-only mode set.
If not, downgrade to 4.1.2 and do *#2236# to reset Automatic band selection mode - it could be set to 2G band preference mode.
Also, check if your SIM can do 3G/4G - if it's an original microSIM (not a miniSIM cut down to fit), chances are it's 3G-ready.
Sent from my GT-I9305 using XDA Free mobile app
i9305 with USA bands set, any way to change it?
Hi,
I have the same problem, can't connect 3G nor 4G, only 2G/2.5G but my case is weird. I bought a refurbished i9305 and it came with USA baseband instead of European, WTF! the i9305 is the international version... so I deduced they changed the qualcomm chip or configuration to match USA market. I'm using it now in Europe, so the bands don't match.
I saw it dialing *#*#4636#*#* (I'm using cyanogenmod instead of stock rom so the *#2236# doesn't work) and then at Phone information click on settings key (screenshot attached).
The question now is: is there any way to modify the qualcomm basebands settings to match another region? (Europe for instance)
ps. flashing a modem/baseband doesn't work. I already flashed I9305XXBME3 (Spain) and I9305XXUEML5 and it remains the same. I think these baseband settings are configured low level at qualcomm modem chip (the i9305 has an exynos cpu but with a qualcomm modem chip if I'm not wrong).
.NetRolller 3D said:
Check in settings if you have 2G-only mode set.
If not, downgrade to 4.1.2 and do *#2236# to reset Automatic band selection mode - it could be set to 2G band preference mode.
Also, check if your SIM can do 3G/4G - if it's an original microSIM (not a miniSIM cut down to fit), chances are it's 3G-ready.
Sent from my GT-I9305 using XDA Free mobile app
Click to expand...
Click to collapse
You NEED to use TW rom for this to work. The setting in *#*#4636#*#* is simply a more detailed veraion of the one in the Settings menu. The one in *#2263# (not *#2236#, that was a typo) is the one that actually writes to NVRAM.
Sent from my GT-I9305 using XDA Free mobile app
A few days ago, my wife and I both got new Sony Xperia Z3 Compacts. We both activated on Cricket. Everything seems to be working well, but one of the phones shows it is connected to 4G and the other shows it is connected to LTE. Both phones have identical APN settings. Additionally, they have different options for 'preferred network type'. They one that shows LTE can choose
WCDMA only
GSM only
WCDMA (preferred)/GSM
LTE (preferred)/WCDMA/GSM.
The one that shows 4G can choose
4G (preferred)/3G/2G
3G only
3G (preferred)/2G
Can anyone shed some light on why they are showing up differently?
It seems that u have different types of z3c. Maybe one is with another region firmware.
Hit *#*#7378423#*#* on dialer and check under Service info - Software info if the customization version matches. If not, one phone has another region firmware. There is no difference, only that it shows 4g instead of lte and thats the same
basti2909 said:
It seems that u have different types of z3c. Maybe one is with another region firmware.
Hit *#*#7378423#*#* on dialer and check under Service info - Software info if the customization version matches. If not, one phone has another region firmware. There is no difference, only that it shows 4g instead of lte and thats the same
Click to expand...
Click to collapse
Thanks for replying!
They are both D5803, but yes, the customization version on the two are different. The LTE one says 1289-4696_R4C and the 4G one says 1288-6117_R7C. Is there a way to get them the same?
edit: It looks like the answer to my question about making them the same can be found in this thread:
http://forum.xda-developers.com/z3-compact/general/list-stock-firmwares-d5803-d5833-t2906706
coolmite said:
Thanks for replying!
They are both D5803, but yes, the customization version on the two are different. The LTE one says 1289-4696_R4C and the 4G one says 1288-6117_R7C. Is there a way to get them the same?
edit: It looks like the answer to my question about making them the same can be found in this thread:
http://forum.xda-developers.com/z3-compact/general/list-stock-firmwares-d5803-d5833-t2906706
Click to expand...
Click to collapse
U can use xperiafirm to download the r4c firmware and flash it via flashtool. Make backup of internal memory or uncheck userdata in wipe options or memory will be erased