Not many will know this can be done! Unless they investigate before purchasing.

shhhh.. we senyap2 jer.

XDA discussion talk about working band. Probably need to check this on your phone:-

Probably need to flash LTE ROM and make sure working band include LTE and voila, you got yourself a LTE enable Ultra Z. Woo hoo...



This post has been edited by gogo2: Sep 17 2013, 01:55 PM

Hahaha! Smart!

lol, i post it, so far, i think the lte band still lock, still need to find way to unlock it, from software info, the S1 boot version and ETS software version remain intact after flash, need find way to flash it too, maybe then lte enable? lol, i also don't know

So it work? I on the way to home

Is it like Nexus 4 where you need to flash the certain baseband file to get the LTE connectivitiy? I wonder if C6833 baseband same as c6802. If not, probably can get Baseband for C6833 and flash it to C6802 before flashing the LTE ROM.

But all this is highly unhealthy to XZU.

This post has been edited by gogo2: Sep 17 2013, 02:27 PM

Now I only worry SOD and fake hang since I faced before on 3G HSPA+ .510 update

so the lte rom did work? can someone help and guide me with the root and flash thingy?

What i can confirm, phone working 100% usual, not sure for lte since from the list of working band, no lte listed.

Hert96 : can you enter the following characters into the dialler: *#*#7378423#*#* and select configuration n post your screenshot of your LTE phone.
Just curious n need to compare the bands

Root not needed for flashing the LTE firmware. Check first page under Development Section, I have put up the instructions to flash LTE rom into HSPA+ devices. Good luck!

will it void my warranty?

Not very sure. Please ask someone who is more experienced with Sony Warranty Claims.

Of course since you are flashing a foreign country rom. But small issue as you can use flashtool to flash back original firmware.

This post has been edited by benny888: Sep 17 2013, 02:43 PM

ROOT WILL NOT VOID WARRANTY

Unless you UNLOCKED BOOTLOADER

This post has been edited by Andrew_1980: Sep 17 2013, 02:56 PM

I have few question before flashing to LTE .510

1. Flash using Flashtool will cause Fake Hang and SOD?
2. PCC got LTE .532 update?

Uncle! I can't go to the service menu! Why?!?!? I typed *#*#7378423#*#* and nothing happened! My mum's HSPA+ XZU can do, the moment I type it in only it'll open the service menu but my LTE one nothing happens?!? I press the call button after I punch in the code also it just says "connection problem or invalid MMI code. Is it because of the developers unit?

So is it just like what they did on Nexus 4? Wuah, Sony, this is such a trick!

I remember someone guide me that LTE have few more band in Service Menu

I try look back!