[Q] Help. Downgrade problem with flashtools on Xperia Play.

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I am having a very hard time trying to get root access to my Xperia Play.

Xperia Play R800i
Android 2.3.4
4.0.2.A.0.69
Bootloader unlocked

From what I could gather from this forum, I need to downgrade to 0.42 so I can use zergRush exploit by Doomlord, or Super One Click.

See, I have no interest in using custom ROMs. Actually, I would like to stay exactly with my stock rom, but with the root access to manage and save space in the internal memory of the phone.

But I cant seem to get Flashtools to work.
I have downloaded the Xperia Play (R800i)_4.0.2.A.0.42_TW.ftf file and it seems legit.
I also downloaded a recent version of Flash tools .

Here is the log of flashtools

24/027/2012 01:27:38 - INFO - <- This level is successfully initialized
24/027/2012 01:27:38 - INFO - Flashtool Version 0.9.6.0 built on 2012-09-17 22:32:25
24/027/2012 01:27:38 - INFO - You can drag and drop ftf files here to start flashing them
24/027/2012 01:27:47 - INFO - Device disconnected
24/028/2012 01:28:27 - INFO - Selected Xperia Play (R800i)_4.0.2.A.0.42_TW.ftf
24/028/2012 01:28:27 - INFO - Preparing files for flashing
24/028/2012 01:28:27 - INFO - Please connect your device into flashmode.
24/029/2012 01:29:02 - INFO - Device connected in flash mode
24/029/2012 01:29:02 - INFO - Opening device for R/W
24/029/2012 01:29:03 - INFO - Reading device information
24/029/2012 01:29:03 - INFO - Phone ready for flashmode operations.
24/029/2012 01:29:03 - INFO - Start Flashing
24/029/2012 01:29:03 - INFO - Processing loader
24/029/2012 01:29:03 - INFO - Checking header
24/029/2012 01:29:03 - INFO - Ending flash session
24/029/2012 01:29:03 - ERROR - ERR_SEVERITY="MAJOR";ERR_CLASS="SECURITY_CLASS";ER R_DYNAMIC="SIN header verification failed"

I have installed the drivers for the Xperia Play from Flashtool drivers.
I am not in MTP mode. I am positive that it is in MSC.
I correctly plugged my device in flash mode.

I am on Windows 7.

I dont know what I am doing wrong.

Please, please, please, can someone more experienced lend a hand?

Thanks a lot.

Originally Posted by Supersonic PB

I am having a very hard time trying to get root access to my Xperia Play.

Xperia Play R800i
Android 2.3.4
4.0.2.A.0.69
Bootloader unlocked

From what I could gather from this forum, I need to downgrade to 0.42 so I can use zergRush exploit by Doomlord, or Super One Click.

See, I have no interest in using custom ROMs. Actually, I would like to stay exactly with my stock rom, but with the root access to manage and save space in the internal memory of the phone.

But I cant seem to get Flashtools to work.
I have downloaded the Xperia Play (R800i)_4.0.2.A.0.42_TW.ftf file and it seems legit.
I also downloaded a recent version of Flash tools .

Here is the log of flashtools

24/027/2012 01:27:38 - INFO - <- This level is successfully initialized
24/027/2012 01:27:38 - INFO - Flashtool Version 0.9.6.0 built on 2012-09-17 22:32:25
24/027/2012 01:27:38 - INFO - You can drag and drop ftf files here to start flashing them
24/027/2012 01:27:47 - INFO - Device disconnected
24/028/2012 01:28:27 - INFO - Selected Xperia Play (R800i)_4.0.2.A.0.42_TW.ftf
24/028/2012 01:28:27 - INFO - Preparing files for flashing
24/028/2012 01:28:27 - INFO - Please connect your device into flashmode.
24/029/2012 01:29:02 - INFO - Device connected in flash mode
24/029/2012 01:29:02 - INFO - Opening device for R/W
24/029/2012 01:29:03 - INFO - Reading device information
24/029/2012 01:29:03 - INFO - Phone ready for flashmode operations.
24/029/2012 01:29:03 - INFO - Start Flashing
24/029/2012 01:29:03 - INFO - Processing loader
24/029/2012 01:29:03 - INFO - Checking header
24/029/2012 01:29:03 - INFO - Ending flash session
24/029/2012 01:29:03 - ERROR - ERR_SEVERITY="MAJOR";ERR_CLASS="SECURITY_CLASS";ER R_DYNAMIC="SIN header verification failed"

I have installed the drivers for the Xperia Play from Flashtool drivers.
I am not in MTP mode. I am positive that it is in MSC.
I correctly plugged my device in flash mode.

I am on Windows 7.

I dont know what I am doing wrong.

Please, please, please, can someone more experienced lend a hand?

Thanks a lot.

Chech the box " no final verification" that's it.

Sent from my R800i using xda premium

It's not that.

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I checked the box, following a tutorial.

In my research, I read that the more recent versions of flashtools had problems with some .ftf.
Anyone had those?

Could be it?

Originally Posted by Supersonic PB

I checked the box, following a tutorial.

In my research, I read that the more recent versions of flashtools had problems with some .ftf.
Anyone had those?

Could be it?

Try previous version of flashtool. Bcoz in previous versions this problem got solved by checking that box. Or try to flash diff. frmw or redownload it then flash.

Sent from my R800i using xda premium