(Get the Windows version from the Installation section).

Download and install Flashtool from →.How to Install Firmware 4.0.2.A.0.62 on Xperia Arc Backup your Apps and important data - bookmarks, contacts, SMS, APNs (internet settings), etc. This procedure will wipe all your apps, data and settings (but it will NOT touch your SD card, so don’t worry about those).If any damage occurs to your device, we won’t be held liable. The methods and procedures discussed here are considered risky and you should not attempt anything if you don’t know completely what it is. It’s not compatible with any other device and may render an incompatible device unusable. Check your device model in Settings » About phone. Compatibility This ROM and the guide below are compatible only and only with the Sony Ericsson Xperia Arc, model number LT15i.