topic Re: Unable to switch GSM in XPERIA archive

Unable to switch GSM

saint21 — Sun, 12 Jul 2015 17:31:23 GMT

On my Z3 I have no signal. In the service menu * # * # 4636 # * # * I found that the radio is turned off. After pressing the button to turn on the radio, nothing happens. Please help. Thanks for any help.

Re: Unable to switch GSM

Uliwooly — Sun, 12 Jul 2015 17:47:26 GMT

@saint21

What if you restart the phone or repair the phone with PCC? have you rooted the phone or unlocked the bootloader? is the phone compatible with your network carrier? is or was the phone locked to a carrier/network?

PC Companion (PCC)

Bridge (for Mac)

Alternatives on How to backup Xperias

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

Re: Unable to switch GSM

saint21 — Sun, 12 Jul 2015 18:13:15 GMT

Restarting via the PCC did not help. I have done bootloader. The phone is compatible with telephone networks. The phone should not be locked to an operator.

Re: Unable to switch GSM

Uliwooly — Sun, 12 Jul 2015 18:26:19 GMT

@saint21

When you say

@saint21 wrote:
... I have done bootloader. ...

What do you mean by that?

Re: Unable to switch GSM

saint21 — Sun, 12 Jul 2015 18:47:41 GMT

The bootloader is unlocked. I tried to upload a different ROM.

Re: Unable to switch GSM

Uliwooly — Sun, 12 Jul 2015 18:55:35 GMT

@saint21

Well there you, flash Sony's ROM again, if that doesn't work you might want to post on the XDA forum.

Re: Unable to switch GSM

saint21 — Sun, 12 Jul 2015 19:04:40 GMT

I wrote at XDA. Nobody helped me. The ROM from Sony?

Re: Unable to switch GSM

Uliwooly — Sun, 12 Jul 2015 19:28:52 GMT

@saint21

Use flashtool, download the ftf file, flash your phone.

Re: Unable to switch GSM

saint21 — Sun, 12 Jul 2015 19:32:54 GMT

I understand that, but that is good? I tried D6603_23.1.A.1.28_Baltic.ftf and it did not help.

Re: Unable to switch GSM

saint21 — Sun, 12 Jul 2015 19:43:51 GMT

How do I find out if the phone is locked?

Re: Unable to switch GSM

_alexdon_ — Sun, 12 Jul 2015 21:23:46 GMT

Dial *#*#7378423#*#* - Service info - SIM lock. Post the results.

Re: Unable to switch GSM

saint21 — Mon, 13 Jul 2015 06:34:42 GMT

All zero.

Re: Unable to switch GSM

_alexdon_ — Mon, 13 Jul 2015 06:51:16 GMT

Do you have any X in brackets?

Re: Unable to switch GSM

saint21 — Mon, 13 Jul 2015 09:33:05 GMT

No X.

Re: Unable to switch GSM

_alexdon_ — Mon, 13 Jul 2015 14:42:51 GMT

In this case,you should have a SIM free device.