Originally Posted by ruwsoft
Mine is C5303.. not a 5302.
I only flashed 'Xperia SP (C5303)_12.0.A.1.211_Customized UK 1272-4687 R7A' ftf found in another post here on xda and updated to the 1.257 using SUS. both fw didnt have offline charging.
I haven't flashed any of the 2.245 files at all.
I created my own ftf for Orange 1.257 by previously doing a repair on the original fw and flashed that ftf which brought back offline charging.
Sounds like you've done all the same things as I have! I also made my own ftf of the orange fw as a backup!
Try flashing the Russian. 245 ftf with flashtool, see if that works? If offline charging is broken - it was on mine, then do repair
with Sony update service
NOT PC companion.
This has worked for me, and sounds like you've the exact same phone.
Sent from my C5303 using Tapatalk 4
Sent from my brain via my Brain slug.
Sony Xperia S 6.2.B.0.200
Sony Xperia SP 12.0.A.1.257
Sony Xperia Tablet Z 10.3.1.A.0.244
Archos Cobalt 80