[Galaxy Ace II Q&A, Help & Troubleshooting] ChronoMonochrome:
My phone was working fine until morning. I flashed D-kernel via terminal, and it doesn't boot(i was on stock 4.1.2 firmware). I left for a while to charge the phone because the battery was nearly discharged.Then i flashed 3 parted firmware via Odin. It takes horribly long time to boot up and just stay on bootscreen for considerable amount of time. When it finally booted, i was not able to use the touch screen.

I tried to restore my nandroid backup via cwm but it did not help. There is my kmsg log:

<6>[ 0.796936] input: gpio-keys as /devices/platform/gpio-keys.0/input/input0
<7>[ 0.797210] [KEY] key: home_key gpio_keys_report_event state = 1
<7>[ 0.797271] [KEY] key: volup_key gpio_keys_report_event state = 1
<7>[ 0.797271] [KEY] key: voldown_key gpio_keys_report_event state = 0
<6>[ 0.797912] input: sec_touchscreen as /devices/platform/nmk-i2c.3/i2c-3/3-0020/input/input1
<6>[ 0.798431] input: sec_touchkey as /devices/platform/nmk-i2c.3/i2c-3/3-0020/input/input2
<6>[ 0.798675] bt404_ts_device 3-0020: panel_type=1
<6>[ 0.897277] bt404_ts_device 3-0020: ldo power control(0)
<4>[ 1.052215] raw soc = 60
<6>[ 1.052398] ab8500-fg ab8500-fg.0: CC_CONF_REG : 3
<6>[ 1.052429] ab8500-fg ab8500-fg.0: Calibration ongoing...
<6>[ 1.313446] bt404_ts_device 3-0020: fw state checked(0x0, 0x0)
<6>[ 1.313873] bt404_ts_device 3-0020: send reset command
<3>[ 1.509521] nmk-i2c nmk-i2c.3: Write to slave 0x20 timed out
<3>[ 1.709564] nmk-i2c nmk-i2c.3: Write to slave 0x20 timed out
<3>[ 1.909637] nmk-i2c nmk-i2c.3: Write to slave 0x20 timed out
<3>[ 1.909729] bt404_ts_device 3-0020: bt404_ts_init_device: err: rd (ic rev)
<3>[ 2.498291] bt404_ts_device 3-0020: retry to initiallize(retry cnt = 1)
<3>[ 2.689697] nmk-i2c nmk-i2c.3: Write to slave 0x20 timed out
<3>[ 2.889709] nmk-i2c nmk-i2c.3: Write to slave 0x20 timed out
<3>[ 3.089721] nmk-i2c nmk-i2c.3: Write to slave 0x20 timed out
<3>[ 3.289733] nmk-i2c nmk-i2c.3: Write to slave 0x20 timed out
<6>[ 3.300476] ab8500-fg ab8500-fg.0: CC_CONF_REG : 3
<6>[ 3.300537] ab8500-fg ab8500-fg.0: Calibration done...
<3>[ 3.489746] nmk-i2c nmk-i2c.3: Write to slave 0x20 timed out
....
<3>[ 8.889739] nmk-i2c nmk-i2c.3: Write to slave 0x20 timed out
<3>[ 9.089752] nmk-i2c nmk-i2c.3: Write to slave 0x20 timed out
<3>[ 9.099639] bt404_ts_device 3-0020: fail to sw reset
<3>[ 9.099670] bt404_ts_device 3-0020: fail to write interrupt register
<3>[ 9.688385] bt404_ts_device 3-0020: retry to initiallize(retry cnt = 2)
<3>[ 9.879760] nmk-i2c nmk-i2c.3: Write to slave 0x20 timed out
<3>[ 10.079772] nmk-i2c nmk-i2c.3: Write to slave 0x20 timed out
<3>[ 10.279754] nmk-i2c nmk-i2c.3: Write to slave 0x20 timed out
<3>[ 10.479797] nmk-i2c nmk-i2c.3: Write to slave 0x20 timed out
<4>[ 10.551635] raw soc = 54
...
<3>[ 16.069732] nmk-i2c nmk-i2c.3: Write to slave 0x20 timed out
<3>[ 16.269744] nmk-i2c nmk-i2c.3: Write to slave 0x20 timed out
<3>[ 16.279632] bt404_ts_device 3-0020: fail to sw reset
<3>[ 16.279663] bt404_ts_device 3-0020: fail to write interrupt register
<3>[ 16.279663] bt404_ts_device 3-0020: retry init (cnt = 3)
<6>[ 16.279663] bt404_ts_device 3-0020: work_state = 0
<3>[ 16.479736] nmk-i2c nmk-i2c.3: Write to slave 0x20 timed out
<3>[ 16.679748] nmk-i2c nmk-i2c.3: Write to slave 0x20 timed out
<3>[ 16.879730] nmk-i2c nmk-i2c.3: Write to slave 0x20 timed out
<3>[ 16.879821] bt404_ts_device 3-0020: bt404_check_fw_update: err: rd (fw ver)
<6>[ 17.890716] bt404_ts_device 3-0020: flashing firmware (size=32768)
<3>[ 18.089752] nmk-i2c nmk-i2c.3: Write to slave 0x50 timed out
<3>[ 18.289733] nmk-i2c nmk-i2c.3: Write to slave 0x50 timed out
<3>[ 18.489746] nmk-i2c nmk-i2c.3: Write to slave 0x50 timed out
<3>[ 18.489837] bt404_ts_device 3-0020: fail to flash 0th page (-110)
<3>[ 20.696899] bt404_ts_device 3-0020: failure: 2 retrial is left
<6>[ 21.700744] bt404_ts_device 3-0020: flashing firmware (size=32768)
<3>[ 21.899749] nmk-i2c nmk-i2c.3: Write to slave 0x50 timed out
<3>[ 22.099731] nmk-i2c nmk-i2c.3: Write to slave 0x50 timed out
<3>[ 22.299743] nmk-i2c nmk-i2c.3: Write to slave 0x50 timed out
<3>[ 22.299835] bt404_ts_device 3-0020: fail to flash 0th page (-110)
<3>[ 24.506866] bt404_ts_device 3-0020: failure: 1 retrial is left
<6>[ 25.510742] bt404_ts_device 3-0020: flashing firmware (size=32768)
<3>[ 25.709747] nmk-i2c nmk-i2c.3: Write to slave 0x50 timed out
<3>[ 25.909729] nmk-i2c nmk-i2c.3: Write to slave 0x50 timed out
<3>[ 26.109741] nmk-i2c nmk-i2c.3: Write to slave 0x50 timed out
<3>[ 26.109832] bt404_ts_device 3-0020: fail to flash 0th page (-110)
<3>[ 28.316864] bt404_ts_device 3-0020: failure: 0 retrial is left
<3>[ 28.509735] nmk-i2c nmk-i2c.3: Write to slave 0x50 timed out
<3>[ 28.709747] nmk-i2c nmk-i2c.3: Write to slave 0x50 timed out
<3>[ 28.909729] nmk-i2c nmk-i2c.3: Write to slave 0x50 timed out
<3>[ 28.909820] bt404_ts_device 3-0020: bt404_ts_init_device: err: rd (ic rev)
<3>[ 28.909820] bt404_ts_device 3-0020: retry init (cnt = 4)
<6>[ 28.909851] bt404_ts_device 3-0020: work_state = 0
<3>[ 29.109771] nmk-i2c nmk-i2c.3: Write to slave 0x50 timed out
<3>[ 29.309753] nmk-i2c nmk-i2c.3: Write to slave 0x50 timed out
<3>[ 29.509735] nmk-i2c nmk-i2c.3: Write to slave 0x50 timed out
<3>[ 29.509826] bt404_ts_device 3-0020: bt404_check_fw_update: err: rd (fw ver)
<6>[ 30.520751] bt404_ts_device 3-0020: flashing firmware (size=32768)
<3>[ 30.719757] nmk-i2c nmk-i2c.3: Write to slave 0x50 timed out
<3>[ 30.919738] nmk-i2c nmk-i2c.3: Write to slave 0x50 timed out
<3>[ 31.119750] nmk-i2c nmk-i2c.3: Write to slave 0x50 timed out
<3>[ 31.119781] bt404_ts_device 3-0020: fail to flash 0th page (-110)
<3>[ 33.327117] bt404_ts_device 3-0020: failure: 2 retrial is left
<6>[ 34.330718] bt404_ts_device 3-0020: flashing firmware (size=32768)
<3>[ 34.529754] nmk-i2c nmk-i2c.3: Write to slave 0x50 timed out
<3>[ 34.729736] nmk-i2c nmk-i2c.3: Write to slave 0x50 timed out
<3>[ 34.929748] nmk-i2c nmk-i2c.3: Write to slave 0x50 timed out
<3>[ 34.929779] bt404_ts_device 3-0020: fail to flash 0th page (-110)
<3>[ 37.137207] bt404_ts_device 3-0020: failure: 1 retrial is left
<6>[ 38.140747] bt404_ts_device 3-0020: flashing firmware (size=32768)
<3>[ 38.339752] nmk-i2c nmk-i2c.3: Write to slave 0x50 timed out
<3>[ 38.539733] nmk-i2c nmk-i2c.3: Write to slave 0x50 timed out
<3>[ 38.739746] nmk-i2c nmk-i2c.3: Write to slave 0x50 timed out
<3>[ 38.739776] bt404_ts_device 3-0020: fail to flash 0th page (-110)
<3>[ 40.947204] bt404_ts_device 3-0020: failure: 0 retrial is left
<3>[ 41.139739] nmk-i2c nmk-i2c.3: Write to slave 0x50 timed out
<3>[ 41.339752] nmk-i2c nmk-i2c.3: Write to slave 0x50 timed out
<3>[ 41.539733] nmk-i2c nmk-i2c.3: Write to slave 0x50 timed out
<3>[ 41.539855] bt404_ts_device 3-0020: bt404_ts_init_device: err: rd (ic rev)
<3>[ 41.539886] bt404_ts_device 3-0020: retry init (cnt = 5)
<6>[ 41.539886] bt404_ts_device 3-0020: work_state = 0
<3>[ 41.739746] nmk-i2c nmk-i2c.3: Write to slave 0x50 timed out
<3>[ 41.939727] nmk-i2c nmk-i2c.3: Write to slave 0x50 timed out
<3>[ 42.139739] nmk-i2c nmk-i2c.3: Write to slave 0x50 timed out
<3>[ 42.139831] bt404_ts_device 3-0020: bt404_check_fw_update: err: rd (fw ver)
<6>[ 43.150756] bt404_ts_device 3-0020: flashing firmware (size=32768)
<3>[ 43.349731] nmk-i2c nmk-i2c.3: Write to slave 0x50 timed out
<3>[ 43.549743] nmk-i2c nmk-i2c.3: Write to slave 0x50 timed out
<3>[ 43.749755] nmk-i2c nmk-i2c.3: Write to slave 0x50 timed out
<3>[ 43.749786] bt404_ts_device 3-0020: fail to flash 0th page (-110)
<3>[ 45.956848] bt404_ts_device 3-0020: failure: 2 retrial is left
<6>[ 46.960754] bt404_ts_device 3-0020: flashing firmware (size=32768)
<3>[ 47.159729] nmk-i2c nmk-i2c.3: Write to slave 0x50 timed out
<3>[ 47.359741] nmk-i2c nmk-i2c.3: Write to slave 0x50 timed out
<3>[ 47.559753] nmk-i2c nmk-i2c.3: Write to slave 0x50 timed out
<3>[ 47.559844] bt404_ts_device 3-0020: fail to flash 0th page (-110)
<3>[ 49.766876] bt404_ts_device 3-0020: failure: 1 retrial is left
<6>[ 50.770721] bt404_ts_device 3-0020: flashing firmware (size=32768)
<3>[ 50.969757] nmk-i2c nmk-i2c.3: Write to slave 0x50 timed out
<3>[ 51.169738] nmk-i2c nmk-i2c.3: Write to slave 0x50 timed out
<3>[ 51.369750] nmk-i2c nmk-i2c.3: Write to slave 0x50 timed out
<3>[ 51.369842] bt404_ts_device 3-0020: fail to flash 0th page (-110)
<3>[ 53.576843] bt404_ts_device 3-0020: failure: 0 retrial is left
<3>[ 53.769744] nmk-i2c nmk-i2c.3: Write to slave 0x50 timed out
<3>[ 53.969757] nmk-i2c nmk-i2c.3: Write to slave 0x50 timed out
<3>[ 54.169738] nmk-i2c nmk-i2c.3: Write to slave 0x50 timed out
<3>[ 54.169830] bt404_ts_device 3-0020: bt404_ts_init_device: err: rd (ic rev)
<3>[ 54.169830] bt404_ts_device 3-0020: retry init (cnt = 6)
<3>[ 54.169860] bt404_ts_device 3-0020: failed to force upgrade (6)
<6>[ 54.170898] bt404_ts_device 3-0020: successfully probed.

I've read similar topics, but does not seem that at least one problem was solved.