Xperia Z: Fidelity Z 2.0 – Ultimate high-fidelity audio updates

As I already made 13 releases for Xperia P so the core itself is pretty much completed. My focus for this ROM will be the best ROM enhancement over stock ROM with new features from other models, best possible sound quality and optimal optimizations that keeps this phone last for a day. You could say this is the best Sony experiences for Xperia Z with this ROM.

This ROM package works on both global’s stock ROM and DoCoMo’s stock ROM. For DoCoMo ROM, most of DoCoMo’s added stuff removed and replaced phone features with global ones. You’ll get pretty much like global ROM but with DoCoMo’s SystemUI and Lockscreen.


init.d support
exFAT support
White Balance support
S-Force Front Surround 3D
Torch application
Xperia Tablet Z apps
Xperia Fidelity script
De-bloated bundle apps
Screen calibration optimized
PureXAudio with latency/gain tweaks
Mastering 64-bit quantization
DSD128 audio processing at 5.6MHz
build.prop tweaks
Thunderbolt tweaks
Partition remounting
LMK supercharged
Screen-state optimizations
Cyber-shot tweaks
Enable Call Recording
Latest Play Store


-Added Sony torch application
-Added Xperia Tablet Z apps
-Fixed Android is upgrading during startup on odexed ROM
-Fixed S-Force Front Surround 3D not working properly
-Improved Alsa configuration using only virtual sound card design for better performance
-Improved init.d script execution for higher level access
-Improved NFC compatibilities for DoCoMo ROM (SO-02E) on global device (C6603)
-Optimized Alsa audio buffer for even lower latency
-Optimized mastering 64-bit floating point quantization for ultimate accuracy of every last detail
-Optimized headphone analog volume for louder sound without distortion (about 15db increase from stock, ideally 10db off from lineout)
-Optimized DSD128 audio processing at 5.6MHz for highest possible resolution before downmixing
-Optimized speaker digital volume for louder sound without clipping (about 5db increase from stock, ideally DAC SNR)
-Reverted dalvik cache optimizations back to Sony’s default as being optimal configuration already
-Updated Play Store to version 4.0.27
-Updated PureXAudio to version 14
-Updated small apps and social apps from Xperia Tablet Z
-Updated more Xperia Tablet Z audio libraries

-Initial release


1. Make your way to access CWM/TWRP recovery.
2. Flash Extreme Fidelity ROM
3. Clear dalvik cache (not cache)
4. Reboot. Wait until you can access home screen and reboot again to reloaded phone with build.prop updates.

None. This is stock ROM-like experiences so you won’t see much of visual changes. You can see some of them from threads I included their work.

Xperia Z: Fidelity Z 2.0


pikachu01, for his Thunderbolt script
ZeroInfinity, for his awesome PureXAudio mods. It’s perfect match with my Xperia Fidelity tweaks for superior audio experiences.
Rizal Lovins, for his long supported Cyber-Shot that improves camera and video capturing experiences.
nicemblem, for his call recording patch. Make sure to click on menu to start recording.
SquallATF, for applying exFAT patch. I’m giving this credit in respect of his initiative.
Sony, for awesome ROM and apps