topic Re: Cannot enable LTE on Xperia SP C5303 in Other/General

Cannot enable LTE on Xperia SP C5303

BW1 — Tue, 04 Mar 2014 14:24:03 GMT

Hi - I have an unbranded Xperia SP C5303 and I've recently taken out a SIM-only plan with Three UK. Although I have a 4G enabled SIM, I cannot see the 4G/LTE option in the phone settings. If I put my SIM card into an Xperia Z1, I can see the option and successfully connect to the 4G signal. My phone is still on Android 4.1.2. I used the Sony online chat support, but they didn't know why I can't see the 4G option, and suggested I do a 'repair' using PCC, but I'd really prefer not to do that, because I don't trust that it will properly restore all of my data. Has anyone else had this issue?

Re: Cannot enable LTE on Xperia SP C5303

_alexdon_ — Tue, 04 Mar 2014 14:27:06 GMT

Try settings-mobile networks-network mode-4G.

Re: Cannot enable LTE on Xperia SP C5303

BW1 — Tue, 04 Mar 2014 15:05:57 GMT

Hi, thanks for the quick response. Unfortunately I don't have "Personalization" as a menu item in Settings. The only way I can see the Nework Mode setting is in Settings->More->Mobile Networks->Network Mode. However I'm not given 4G/LTE as an option, I can only select WCDMA or GSM or both.

Re: Cannot enable LTE on Xperia SP C5303

_alexdon_ — Tue, 04 Mar 2014 15:10:32 GMT

Strange.Force shutdown your device and look for it again.

http://userguide.sonymobile.com/referrer.php?region=global-en&product=xperia-sp#!Turning-on-or-off-the-device---heading-only.html

Re: Cannot enable LTE on Xperia SP C5303

Uliwooly — Tue, 04 Mar 2014 15:26:15 GMT

Are you certain that you have the C5303 because if you have the C5302 its not LTE capable, is your phone locked to a carrier/network branded?

Re: Cannot enable LTE on Xperia SP C5303

BW1 — Tue, 04 Mar 2014 15:27:08 GMT

Thanks - still no luck unfortunately. What I've found is that starting up my phone without any SIM card, I can see the 4G LTE option, and even find a list of 4G signals when I do a carrier search. However, with my SIM card in the phone, the 4G option is gone, and I can only select WCDMA or GSM. I assumed it had something to do with my SIM, but I've tried it in other phones such as the Z1 and the Nexus 5, and they work fine on 4G with my SIM. Very strange!

Re: Cannot enable LTE on Xperia SP C5303

_alexdon_ — Tue, 04 Mar 2014 15:28:15 GMT

It could be related to your SIM.Contact your network carrier.

Re: Cannot enable LTE on Xperia SP C5303

Uliwooly — Tue, 04 Mar 2014 15:28:25 GMT

is your phone network branded/carrier locked?

Re: Cannot enable LTE on Xperia SP C5303

BW1 — Tue, 04 Mar 2014 15:37:37 GMT

I don't believe so. I bought it from Phones4u, and originally I used it on O2, then I switched to Three UK. I wonder if somehow O2 did something to disable 4G? The customization number is 1272-4687_R13A which I believe translates to 'UK Generic'.

Re: Cannot enable LTE on Xperia SP C5303

_alexdon_ — Tue, 04 Mar 2014 15:39:00 GMT

Dial *#*#7378423#*#*-service info-sim lock.Tell the results.

Re: Cannot enable LTE on Xperia SP C5303

BW1 — Tue, 04 Mar 2014 15:47:24 GMT

It says:

[] Network 0

[] Network Subset 0

[] Service Provider 0

[] Corporate 0

[] SIM 0

Re: Cannot enable LTE on Xperia SP C5303

_alexdon_ — Tue, 04 Mar 2014 15:52:26 GMT

It is network unlocked.

Re: Cannot enable LTE on Xperia SP C5303

Uliwooly — Tue, 04 Mar 2014 16:06:19 GMT

I don't think that this will work but it doesn't hurt to give it a shot, re-install the latest update with SUS or PCC

Update Service (SUS)

PC Companion (PCC)

Bridge (for Mac)

Alternatives on How to backup Xperias

http://talk.sonymobile.com/thread/36355

if that doesn't work then you can flash the global generic firmware, or stop by your local Sony repair center

http://www.sonymobile.com/global-en/support/contact-us/

Re: Cannot enable LTE on Xperia SP C5303

BW1 — Tue, 04 Mar 2014 16:07:34 GMT

Ok - do you recommend doing a factory reset then? Perhaps there's something O2 can do by way of an OTA update, but since I'm not with them any longer, I'm doubtful. Three UK are no help at all, unfortunately as I didn't buy the phone through them.

Re: Cannot enable LTE on Xperia SP C5303

Natchi — Tue, 04 Mar 2014 16:31:25 GMT

Hi there is nothing you can do other than flash one of the other regions roms, I have the same issue phone/network, there appears to be a software lock to stop it using 4g. Until Sony issues and update you can activate 4g. SUS etc do nothing. I have seen it mentioned by others on the same combo, and can vouch personally.

Its a poor effort on Sony's part but that appears to be the rule

Re: Cannot enable LTE on Xperia SP C5303

Uliwooly — Tue, 04 Mar 2014 16:43:30 GMT

Go to settings about phone what do you see

C5030 or C5302?

if you want to flash?

http://talk.sonymobile.com/t5/Xperia-Z-ZL-ZR/How-to-manually-update-downgrade-root-2013-Xperias/td-p/298463

Re: Cannot enable LTE on Xperia SP C5303

ShinOrochiX — Mon, 17 Mar 2014 16:48:37 GMT

I have the same issue, Xperia SP running 4.1.2 on unbranded customised UK firmware. Whenever I enter my 3 SIM I lose the setting for 4G.

We need an official Sony representative to see our concern.

Btw I also got the phone from Phones4U.

Re: Cannot enable LTE on Xperia SP C5303

jezzep — Mon, 17 Mar 2014 19:00:21 GMT

Hi,

It is related to the software build. In my job I can activate the carrier settings, but with the build version you cannot activate 4g on any network...

It is the reason why I'm so hacked off with Sony. I was thinking of taking my phone back, because it doesn't support the mode of operation....

Re: Cannot enable LTE on Xperia SP C5303

KoNG_CZ — Sat, 22 Mar 2014 20:28:04 GMT

I have same problem (C5303, Three) any solution?

Re: Cannot enable LTE on Xperia SP C5303

Xperia_SP_User — Mon, 31 Mar 2014 21:06:31 GMT

Hi All,

I too have the same problem. Purchased the phone from Phones4U SIM Free. Without any SIM card inserted, 4G option is displayed under Network Settings. If an Orange or O2 SIM card is inserted, the LTE option is displayed. As soon as the 3 SIM Card is inserted, no LTE option is available. I have been to a 4G area and when the SIM card is removed, the 3 Network is visible after doing a Network Search, (4G and 3G), along with EE's network. Once the SIM card is inserted again, no 4G network for 3.

Is this really an issue on Sony's side or is it 3? 3 have been sending out 'Software Updates' for all 3 branded phones, but it appears that for anyone that has a SIM free device, no updates are forthcoming. What are the updates that 3 are issuing? Are they updates to the phones or is it to the SIM cards? I am pretty sure that if I was using an O2 or EE SIM card, the Xperia SP would work fine on those networks. What is different about 3?

I have a query in with Sony support at the moment, so hopefully they will be able to shed some light on where the problem lies. I have tried my SIM card in a Nexus 5 SIM free device and the 4G option is shown. It appears that there are a variety of people having the same problems - particularly with Samsung devices prior to updates.

3 used to sell Xperia SP's. I am assuming that anyone who has a 3 branded device is having this same issue? Is anyone out there using an Xperia SP and has the LTE option available with a 3 SIM card?