[Sony Xperia S, Acro S, Ion] Dr.Electro:
a little update. After flashing to 200, the battery doesn't seem to hold enough charge and stays at 0%. I just retried flashing it with stock 211. Here's the log:

25/005/2013 18:05:24 - INFO - <- This level is successfully initialized

25/005/2013 18:05:24 - INFO - Flashtool Version 0.9.11.0 built on 2013-06-04 22:50:00

25/005/2013 18:05:29 - INFO - Device disconnected

25/006/2013 18:06:06 - INFO - Selected Sony Acro S / 6.2.В.0.211 / si 1266-4264

25/006/2013 18:06:06 - INFO - Preparing files for flashing

25/006/2013 18:06:20 - INFO - Please connect your device into flashmode.

25/019/2013 18:19:50 - INFO - Device connected in fastboot mode

25/019/2013 18:19:56 - INFO - Device disconnected

25/020/2013 18:20:06 - INFO - Device connected in flash mode

25/020/2013 18:20:06 - INFO - Opening device for R/W

25/020/2013 18:20:06 - INFO - Reading device information

25/020/2013 18:20:06 - INFO - Phone ready for flashmode operations.

25/020/2013 18:20:06 - INFO - Current device : LT26w - CB5121A3Y8 - 1266-3278_R2H - 1252-0023_6.2.B.1.96 - WORLD_6.2.B.0.200

25/020/2013 18:20:06 - INFO - Start Flashing

25/020/2013 18:20:06 - INFO - Processing loader

25/020/2013 18:20:06 - INFO - Checking header

25/020/2013 18:20:07 - INFO - Flashing data

25/020/2013 18:20:08 - INFO - Loader : S1_Root_de72 - Version : R5C011 / Bootloader status : ROOTED

25/020/2013 18:20:09 - INFO - Processing partition-image.sin

25/020/2013 18:20:09 - INFO - Checking header

25/020/2013 18:20:09 - INFO - Flashing data

25/020/2013 18:20:09 - WARN - This file is ignored : simlock.ta

25/020/2013 18:20:09 - INFO - Processing kernel.sin

25/020/2013 18:20:09 - INFO - Checking header

25/020/2013 18:20:09 - INFO - Flashing data

25/020/2013 18:20:11 - INFO - Processing fotakernel.sin

25/020/2013 18:20:11 - INFO - Checking header

25/020/2013 18:20:11 - INFO - Flashing data

25/020/2013 18:20:13 - INFO - Processing amss_fs_2.sin

25/020/2013 18:20:13 - INFO - Checking header

25/020/2013 18:20:13 - INFO - Flashing data

25/020/2013 18:20:13 - INFO - Processing amss_fs_1.sin

25/020/2013 18:20:13 - INFO - Checking header

25/020/2013 18:20:13 - INFO - Flashing data

25/020/2013 18:20:13 - INFO - Processing amss_fsg.sin

25/020/2013 18:20:13 - INFO - Checking header

25/020/2013 18:20:13 - INFO - Flashing data

25/020/2013 18:20:13 - INFO - Processing apps_log.sin

25/020/2013 18:20:13 - INFO - Checking header

25/020/2013 18:20:14 - INFO - Flashing data

25/020/2013 18:20:14 - INFO - Processing cache.sin

25/020/2013 18:20:14 - INFO - Checking header

25/020/2013 18:20:14 - INFO - Flashing data

25/020/2013 18:20:16 - INFO - Processing system.sin

25/020/2013 18:20:16 - INFO - Checking header

25/020/2013 18:20:16 - INFO - Flashing data

25/023/2013 18:23:28 - INFO - Processing userdata.sin

25/023/2013 18:23:28 - INFO - Checking header

25/023/2013 18:23:28 - INFO - Flashing data

25/023/2013 18:23:38 - INFO - Ending flash session

25/023/2013 18:23:38 - INFO - Flashing finished.

25/023/2013 18:23:38 - INFO - Please unplug and start your phone

25/023/2013 18:23:38 - INFO - For flashtool, Unknown Sources and Debugging must be checked in phone settings

25/023/2013 18:23:38 - INFO - Device connected in flash mode

25/023/2013 18:23:58 - INFO - Device disconnected

Now the device won't turn on for the moment. I guess battery depleted again. Showing only red led during charge. Is the flashtool log reliable?