Long story short my sister upgraded to iphone so she left her xperia SP untouched for two days, which somehow drained all the battery ( i know it because LED blinked three times when I pressed power button). So I left it to charge for 3 hours using a wall charger & then following happened:
- Sony logo came up.
- Sony Auto repair mode activated. (Phone was perfectly working earlier).
- The Sony rainbow wave kept on coming for hours.
- A message popped up ‘Process system is not responding’ with option ‘wait’ & ‘continue’. I chose continue.
- Phone was stuck on that screen for half an hour. Then I decided to switch off the pone normally. Power off popup screen came and screen froze on it for hours.
- Then the process restarted and it has been the same way no matter what i try.
Solutions that I’ve already tried:
- Repairing using Sony PC companion. Progress stay stuck at same point on all three of my PCs and then errors shows up. ( tried on windows 8.2/xp sp3/Windows 7 64bit).
- Repairing using Flashtool. Everything gets loaded successfully but no progress has ever taken place. Even left it for a day but my phone’s battery died yet not flashed. Tried it on windows 7 and XP-SP3, with three different ‘*.ftf’. windows 8.1 is still pending.
- I installed EMMA. It detects my device pretty well but as it is not rooted nothing further happens.
- Installed all drivers prescribed in flashtool successfully. Reinstalled them after reinstalling flashtool and PC companion.
- Tried rooting only kernel but didn’t work. It stayed stuck as well.
- Updated java.
- Took phone apart and pulled the battery ribbon out and repeated step 1-4. Still no success.
Any type of suggestions/help is really appreciated.