I rooted my Xperia Acro S with 2.55 firmware and keeping my bootloader lock with these steps, feel free to follow and don't forget to press THANKS.
Prepare:
*Settings: Security [Unknown sources] CHECKED
*Settings: Developer Options [USB debugging] CHECKED
*Charge the Xperia Acro S battery to 50% - 80%.
1. Flash your rom to 2.45 using flashtool (http://androxyde.github.com/) (you can uncheck all the menus even the wipe column) (this is the file of 2.45 rom http://xdaforums.com/showthread.php?t=2076625)
2. After flashing use this (http://xdaforums.com/showthread.php?t=1886460) so that your Acro S will gain root access, after rooting you can now install CWM just follow this:
Download link: https://www.box.com/s/qel8x02wx89uqs2tqgk2
Instructions:
a) Extract ZIP to your computer
b) Connect your phone in ADB mode
c) Launch the .bat file
d) Tap the Sony logo repeatedly when turning your phone on to enter recovery mode
3. Follow the instruction gave by desperanto and you will get the last stock 2.55 with root + cwm
*Unzip archive and flash ftf file via flashtool wintout any wipe! This is the file (http://www13.zippyshare.com/v/18967768/file.html)
*Copy StockRom_6.1.A.2.55+root+cwm.zip (This is the file https://drive.google.com/uc?id=0By2cxCzz7TAFblJmRGw4QkRuTHc&export=download) on your SD Card and install via CWM. (If you want clean ROM, wipe all before installing)
Done!
Press thanks if I helped you
credits:
Bin4ry
Desperanto86
danlikesphones
Prepare:
*Settings: Security [Unknown sources] CHECKED
*Settings: Developer Options [USB debugging] CHECKED
*Charge the Xperia Acro S battery to 50% - 80%.
1. Flash your rom to 2.45 using flashtool (http://androxyde.github.com/) (you can uncheck all the menus even the wipe column) (this is the file of 2.45 rom http://xdaforums.com/showthread.php?t=2076625)
2. After flashing use this (http://xdaforums.com/showthread.php?t=1886460) so that your Acro S will gain root access, after rooting you can now install CWM just follow this:
Download link: https://www.box.com/s/qel8x02wx89uqs2tqgk2
Instructions:
a) Extract ZIP to your computer
b) Connect your phone in ADB mode
c) Launch the .bat file
d) Tap the Sony logo repeatedly when turning your phone on to enter recovery mode
3. Follow the instruction gave by desperanto and you will get the last stock 2.55 with root + cwm
*Unzip archive and flash ftf file via flashtool wintout any wipe! This is the file (http://www13.zippyshare.com/v/18967768/file.html)
*Copy StockRom_6.1.A.2.55+root+cwm.zip (This is the file https://drive.google.com/uc?id=0By2cxCzz7TAFblJmRGw4QkRuTHc&export=download) on your SD Card and install via CWM. (If you want clean ROM, wipe all before installing)
Done!
Press thanks if I helped you
credits:
Bin4ry
Desperanto86
danlikesphones
Last edited: