Sony Flash Tool is a flashing software for updating, unlock the bootloader, rooting, and custom kernel Sony Android phone using FTF firmware. Sony Flash Tool developed by Androxyde based on the command line written by Bin4ry (Andreas Makris) which is given an interface for flashing sin files via the S1 protocol.

0.9.33.0

C4 and C5 users please do not flash using Flashtool. It will brick the device. M5 users please do use FSC when flashing or it will brick your device.

The following tutorial shows all method of master reset SONY ERICSSON Yendo W150i. Check out how to accomplish Hard Reset by hardware keys and Vendor settings. As a result your SONY ERICSSON Yendo W150i will be as new and your core will run faster. Download the Flash Tool. The flash tool for Xperia™ is actually called Emma, and today it runs on all Windows computers, with a few exceptions. This tool is confirmed working for most markets globally., with a few exceptions. due to distribution restrictions. From Thursday, 6 July 2017 Emma will not function on Windows Vista. If you are having issues with opening your flash tool. Make sure to download the latest version supported by your computers operating system. Here you can learn more about the flash tool for Xperia™ devices, which is a desktop application that you can use to flash Sony software on your unlocked Xperia™ device.

1. Fixed a regression with partition auto-choose.
2. Updated jbbp and picocli libraries.

We recently reported on a fantastic new tool called XperiFirm, which allows you to browse and install the latest firmware files for any Sony Xperia device. We have had a number of people get in touch asking us how they can use those files to flash that firmware onto their handset using FlashTool.

Sony Ericsson W150i Flashing Tools

0.9.25.0

Do not use Flashtool 0.9.25.0 to update the Sony Xperia C4, C5, and M5 firmware because it can cause the device to become bricked. Better to use Xperia Companion. It is recommended to use Xperia Companion to update or improve device software.

1. FTF created with very old releases of Flashtool are not compatible with the new version. Bundle tidak terlihat? Extract the bundle content to a folder. If the bundle contains a boot folder, rename sinb and tab files to sin and ta. Recreate the bundle with the new Flashtool.
2. Update for XZ2 and XA2 series. For XA2 or XZ2 flashing. You will have to recreate the FTF with the release 0.9.25.0 of Flashtool if you already had a FTF.
3. Updated all libraries to latest version.
4. Updated Java to 10.0.1.

0.9.22.3

1. Due to many bad simlock flashing, simlock is disabled from FTF selector wipe / exclude list. It is only enabled in Pro mode. A warning is shown when flashing while in pro mode.

0.9.18.6

Sony Ericsson W150i Flashing Tool

1. Device folder now in flashtool user home folder (move it or resync it from Flashtool Devices Menu).
2. Java updated to 8u45.
3. Added xperifirm integration.
4. All user files in a Flashtool home folder. Ability to choose this user home folder.
5. New more exhaustive TA backup using S1 protocol (still not usable to backup DRM. Device must be rooted for that.

Source http://www.flashtool.net