Intentionally deleted Android system - how do I fix this? Right now I own a Sony Ericsson Xperia x10 mini and I rooted it. I had this program installed from Android Marketplace that allows you to delete applications.

So guess what... I deleted several applications for testing purposes and I knew that if I uninstall Android System it would break everything.

I did that epic "mistake" for testing purposes (don't try this).

The thing is how do I fix this? I have spent some time reading through forums and installed Flashtool and downloaded the ftf file (X10a_v2.1.update-1_2.1.A.0.435_Generic.ftf) in C:\Flashtool\firmwares directory.

What I have to deal with right now: - My mobile phone switched off when deleted Android System so I decided to boot it to see if any error messages comes up. - Now my phone won't power off due to the lack of Android System. So I have to use a torx screwdriver to remove the screws and take off the battery (because Flashtool requires the phone to be switched off) but unfortunately the Torx I have is one size bigger than the required one for Xperia's screws. - I guess I have to wait until the battery is dead or I should just get a proper Torx screwdriver.

The thing is that I have another Xperia x10 mini as well (works for now - didn't try any uninstall) and connected it to FlashTool and followed the instructions to flash it but I keep getting this error message:


  ERROR - ERR_SEVERITY="MAJOR";ERR_CLASS="SECURITY_CLASS";ER R_DYNAMIC="SIN header verification failed"


I tried to figure out what's causing this and I end up with the "locked bootloader solution". I tried the instructions read here: http://unlockbootloader.sonymobile.com/instructions but when I typed ##7378423## no service menu was available...

That happened to the working Xperia phone. How would I possible do that on a broken Xperia?

Any suggestions would be highly appreciated!

We're all learning through our mistakes after all.
If you didn't already have your bootloader unlocked and tools in place to reload the Android operating system (ie, ROMs or disk images), I strongly suspected you are completely screwed.