(WTF??) wcdma 2100/900 (before the update it showme 850/1900)

Hello.

My xperia j told me there is an update to version 11.2.a.0.31 and gave update (When do you erase all the cellulose).

Now the problem is that since that time I have no 3g signal (wcdma). only works with GSM and the speed is very slow.


Don´t know if it change something from the original baseband, does anyone have any recommendations?

Try using the pc companion but it says that the phone is changed.

Thank you.

ps: I restored bootloader and use pc companion to repair it, but wcdma keep wrong.

zzztidurvirus said:

Have you check the menu with that wcdcma only option? There should be 3 items in that menu.

Sent from My Awesome Paradox ST21i

Click to expand...

Click to collapse

wcdcma only = no signal

2010matej said:

Try to flash 11.0.a.7.5 and see if there is 3g. If there is then try to flash .31 back. Try central and try portugal version! Links to download you found in my thread of full collection of ftf files... In general section

Sent from my ST26i using xda premium

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Click to collapse

It did not work.
But I found something that I had not seen. By using Flashtool see the following message:


08/023/2013 09:23:45 - INFO - <- This level is successfully initialized
08/023/2013 09:23:45 - INFO - Flashtool Version 0.9.11.0 built on 2013-06-04 22:50:00
08/023/2013 09:23:49 - INFO - Device disconnected
08/023/2013 09:23:49 - INFO - Flash canceled
08/032/2013 09:32:02 - INFO - Selected ST26i / 11.0.A.3.28 / WE
08/032/2013 09:32:02 - INFO - Preparing files for flashing
08/032/2013 09:32:23 - INFO - Please connect your device into flashmode.
08/033/2013 09:33:16 - INFO - Device connected in flash mode
08/033/2013 09:33:17 - INFO - Opening device for R/W
08/033/2013 09:33:17 - INFO - Device connected in flash mode
08/033/2013 09:33:17 - INFO - Reading device information
08/033/2013 09:33:17 - INFO - Phone ready for flashmode operations.
08/033/2013 09:33:17 - INFO - Current device : ST26i - YT9105YUA0 - 1270-7015_R2E - 1263-8752_11.2.A.0.31 - WORLD-i_11.2.A.0.31
08/033/2013 09:33:17 - INFO - Start Flashing
08/033/2013 09:33:17 - INFO - Processing loader
08/033/2013 09:33:17 - INFO - Checking header
08/033/2013 09:33:18 - INFO - Flashing data
08/033/2013 09:33:21 - INFO - Loader : S1_Root_a8a4 - Version : R5D030 / Bootloader status : ROOTABLE
08/033/2013 09:33:22 - INFO - Processing partition-image.sin
08/033/2013 09:33:22 - INFO - Checking header
08/033/2013 09:33:22 - INFO - Flashing data
08/033/2013 09:33:23 - WARN - This file is ignored : simlock.ta
08/033/2013 09:33:23 - INFO - Processing kernel.sin
08/033/2013 09:33:23 - INFO - Checking header
08/033/2013 09:33:23 - INFO - Flashing data
08/033/2013 09:33:24 - INFO - Processing fota1.sin
08/033/2013 09:33:24 - INFO - Checking header
08/033/2013 09:33:24 - INFO - Flashing data
08/033/2013 09:33:24 - INFO - Processing fota0.sin
08/033/2013 09:33:24 - INFO - Checking header
08/033/2013 09:33:24 - INFO - Flashing data
08/033/2013 09:33:25 - INFO - Processing amss.sin
08/033/2013 09:33:25 - INFO - Checking header
08/033/2013 09:33:25 - INFO - Flashing data
08/033/2013 09:33:29 - INFO - Processing amss_fsg.sin
08/033/2013 09:33:29 - INFO - Checking header
08/033/2013 09:33:29 - INFO - Flashing data
08/033/2013 09:33:29 - INFO - Processing modem_fs2.sin
08/033/2013 09:33:29 - INFO - Checking header
08/033/2013 09:33:29 - INFO - Flashing data
08/033/2013 09:33:30 - INFO - Processing modem_fs1.sin
08/033/2013 09:33:30 - INFO - Checking header
08/033/2013 09:33:30 - INFO - Flashing data
08/033/2013 09:33:30 - INFO - Processing cache.sin
08/033/2013 09:33:30 - INFO - Checking header
08/033/2013 09:33:31 - INFO - Flashing data
08/033/2013 09:33:32 - INFO - Processing system.sin
08/033/2013 09:33:32 - INFO - Checking header
08/033/2013 09:33:32 - INFO - Flashing data
08/035/2013 09:35:32 - INFO - Processing userdata.sin
08/035/2013 09:35:33 - INFO - Checking header
08/035/2013 09:35:33 - INFO - Flashing data
08/035/2013 09:35:36 - INFO - Ending flash session
08/035/2013 09:35:36 - INFO - Flashing finished.
08/035/2013 09:35:36 - INFO - Please unplug and start your phone
08/035/2013 09:35:36 - INFO - For flashtool, Unknown Sources and Debugging must be checked in phone settings
08/035/2013 09:35:37 - INFO - Device connected in flash mode
08/035/2013 09:35:58 - INFO - Device disconnected


how can i change the baseband?

Using *#*#7378423#*#*, service info -> configuracion -> working Band/s:

gsm 850/900/1800/1900
wcdma 2100/900 (before the update it showme 850/1900)

Using this:

*#*#7378423#*#*

show me this:

[ X ] Network 0
[ X ] Network Subset 0
[ X ] Service Provider 0
[ X ] Corporate 0
[ X ] Sim 0

is it locked?