[General Questions and Answers] toprekmusic:
so-02c DOCOMO xperia ACRO

I have the same phone got it in japan from a friend Xperia acro so-02c, and since NTT DOCOMO hasn't pushed the 4.0 upgrade and won't, i have been trying to find a way to upgrade for some time now, the ONLY way i have found so far after searching tons of forums (usually japanese) i have found only one way to flash a new verson of undroid and it worked, but i couldn't root it using the doomlord's toolkit (i could root it using doomlord while the phone was flashed with the original docomo ics .9).

This is the answer i found, since i have seen some other posts on this subject, decided to give you the whole other forum copy/paste.

The original was in vietnamese :D, hence the google translation of the post:

(I tryed this with a newer version of flashtool but it didnt work for some reason, though i am a tottal noob so that also might be the problem, but the 0.7.0 version worked like a charm)

Guide update sony ericson Arco from-02c to Ics 4.0 world Lt18i.

So-02C currently no official version of ICS 4.0. But I can guide you to update the So-02c on the ICS 4.0.3 version arc s Lt18i.

Please note, read the directions carefully before making, I tried on two machines. I do not take responsibility for these incidents occur during up room.

1-Preparing the

PC Companion

Generic Nordic ICS Xperia Arc S firmware ( LT18_4.1.A.0.562_NCB.ftf )

FlashTool 0.7.0.0 (FlashTool 0.6. 9.1, update.zip)

SO-02C_4.0.1.C.1.9_docomo.ftf

Machine Xperia acro Compared-02c

Cable USB

2-Conduct

+ Install Pc Companion

+ Unzip Flashtoot 0.7.0.0, run the file to install FlashTool- 0.6.9.1-Windows.exe. Unzip the update.zip file, overwriting the entire new data extract the folder install of flashtool, usually in the path C: \ Flashtool

+ Copy 2 LT18_4.1.A.0.562_NCB.ftf files vàSO -02C_4.0.1.C.1.9_docomo.ftf on the folder C: \ Flashtool \ firmwares

+ In C: \ Flashtool run file flashtool.exe (win 32) or flashtool64.exe (win 64).

Flashtool will confirm the version has been updated to ver 0.7.0.0

Click Flash (lightning bolt icon), select Flashmode

Select LT18i 4.1.A.0.562 GenericNCB. Built choose three items: wipe user data, wipe cache, no final verification check as shown. Press ok.

Table inform

you turn off the power over-02c go, wait about 10 seconds. Hold the back button. Then start cable plug. Flash will start the process, you do not hold back anymore, flashtool run until the message appears as shown below

Disconnect the cable from the so-02c, but not turn on the light.

continue to select Flash as a first, and then select SO-02C 4.0.1.C.1.9 DOCOMO. Built select 2 items Exclude system, Exclude Kenel as shown below

Click ok, and then continue to do the above steps until Flash is finished.

Unplug the cable out, turn on, thrill to phone waiting for, for a long time, do not panic. And this is the result ^ ^

So-02c ran Ics 4.0 of the Lt18i

Note: Some features will not be used but no problem

+ Infrared

+ SEG (Japanese TV)

+ Felica (in Japan nodules)

Overall this is a very worthwhile upgrade, Ram released quite a lot, carefree setting.

Worked like a charm.

now running 4.0.3 android .562 firmware but cant root it using doomlord's toolkit so if anyone has got a workaround for this, I'd be more than gratefull..

EDIT managed to root it using the doomlords xperia 2011 toolkit...