Good news for Xperia M users, previously certified mysterious 15.4.A.0.21 firmware on PTCRB for Xperia M C1905 and C1904 is now confirmed to be Android 4.3 update. SFR carrier in France has confirmed approval of android 4.3 15.4.A.0.21 firmware for Xperia M and soon it will start rolling via PC Companion or OTA though no specific date is mentioned yet.

15.4.A.0.21 firmware was certified for Xperia M on PTCRB a month back along with new 15.5.A.0.16 firmware which was certified for Xperia M dual which at present is on Android 4.2.2 version while Xperia M is on android 4.1.2. SFR carrier has also listed an official changelog of Xperia M Android 4.3 15.4.A.0.21 firmware update. SFR carrier has also mentioned the customization version as  C1905_15.4.A.0.21_SFR-FR_1275-3031_R5C.

15.4.A.0.21 firmware Changelog

• Updated, faster UI.
• Sony Media apps updated viz, Walkman, Movies, Album.
• New Xperia downloadable themes.
• Updated Sony stock apps.

Vodafone AU has also confirmed that testing for Xperia M android 4.3 update in undergoing already. It is not clear yet that as all carriers are stating the fact of Android 4.3 update for Xperia M while Sony is keeping it secret.

We hope Xperia M and Xperia M Dual both gets android 4.3 soon, as soon any information of 15.4.A.0.21 firmware rollout comes, we will update. No Android 4.3 plans have been mentioned by Sony for Xperia L and Xperia C yet.

Excited Xperia M users, let us know. Drop your comments below.