DESCRIPTION

SONY Xperia Tipo ST21i LOCK REMOVE

Prepare Flashtool for Flashing

1. Open Flashtool.

2. Click the lightning bolt icon (Flash Mode).

3. Select Flashmode → Choose your downloaded FTF file.

4. Do NOT check "Final Verification" (to avoid errors).

5. Click Flash and wait for Flashtool to prepare files.

Connect Phone in Flashmode

1. Power off your Xperia ST21i

2. Hold the Volume Down button (keep holding).

3. While holding Volume Down, connect the USB cable to the PC.

4. The LED should turn green, and Flashtool will detect the phone

※Please make a backup of your device before installing or updating ROM