[Xperia Z3 General] benkxda:
Thread link

22 Jan 2017: After 2.75 years of weekly maintaining this thread, it still will get maintained, but with a monthly frequency.

27 Aug 2016: The Z3 won't get Android Nougat, Sony said. Let's hope, the developers here on XDA can fix this problem.

21 Apr 2016: Android N Developer Preview for the Z3 available now.

17 Oct 2015: First Android 6.0 Marshmallow ROM (AOSP) available, work in progress though.

28 Jun 2015: Added first Android M Developer Preview related threads. Keep in mind, this is not a Nexus device, expect problems.

20 Jun 2015: Removed KitKat ROMs and Kernels section, but will remain in the deprecated post (check down below - currently post #4), so we don't lose them.

06 Jan 2015: Added several threads from the OEM Cross-Device Development Forum (Sony Cross-Device General and Sony Cross-Device Development Themes and Apps). Please check properly what you flash, as there is a wider scale of device varieties. If you think, a thread needs a comment (for example "only with D6603") or even harms your device, post it and we'll review it.

30 Sep 2014: Started the Z3 index. Any help appreciated.

--- MONTHLY UPDATES --- (not guaranteed)

I forgot your favorite Z3 thread, forgot to update a thread or a thread is misplaced/unnecessary? I'm sorry. Please send me a PM or post it in the thread. I'll fix that. :)

Warning: Only apply compatible treatment on your device. Make sure you don't get into trouble. After all it would be your mistake. Not the developer, XDA or I am in charge, only you.

Sony Xperia Z3 D6616 T-Mobile user guide

Sony Xperia Z3v D6708 Verizon user guide

Sony Xperia Z3 D6603/D6653 user guide

Sony Xperia Z3 product website

Sony Xperia Z3 at phoneArena.com

Sony Xperia Z3v at phoneArena.com

Sony Xperia Z3 at GSMArena

Sony Xperia Z3 at iFixit

Sony Xperia Z3v at iFixit

Sony Xperia Z3 teardown at iFixit

Sony Xperia Z3 teardown at eWisetech (Chinese; English via Android Authority)

Sony Xperia Z3 at Wikipedia

Sony Xperia Z3 DxOMark test results

Z3 frequency bands

No 3G Only Z3.

XDA-Developers Portal

Sony Xperia Z3 related news

OEM Cross-Device Development Forum

Sony Cross-Device General

Sony Cross-Device Development Themes and Apps

Xperia AOSP Project

We heard you! Sony kernel sources now available on GitHub

Unified kernel for msm8974 devices

[Knowledge Base] Introduction to the Sony (-Ericsson) Xperia Galaxy

[17 Apr 2017] [D6603][UNOFFICIAL] LineageOS 14.1 [WIP][2017-04-16]

Following threads are checked less frequently - reviewed on 23 Apr 2017

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[12 Jan 2017] [CLANG][7.1.1][Substratum]PixN Rom

[07 Jan 2017] [7.x.x][WEEKLIES] CarbonROM | cr-5.1 [leo]

[05 Jan 2017] [Nougat 7.1.1][Z3 - D6603] Android Open Source Project

[04 Sep 2016] [NRD90M] AOSP Nougat 7.0 *thread closed*

[30 Jun 2016] [FTF] Android Nougat Preview 4 NPD56N {Update 16/06}

[21 Apr 2016] Get Android N Developer Preview on selected Xperiaâ„¢ devices

AOSP ROMs - Original Android Development

Following threads are checked less frequently - reviewed on 23 Apr 2017

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[27 Jan 2017] [D6603][UNOFFICIAL][CM-13.0] experimental/under development [2017-01-27]

[03 Oct 2016] [z3dual] Cyanogenmod 13 for D6633

[11 Aug 2016] Paranoid Android 6.0.1 - AOSPA - Z3

[28 Apr 2016] [6.0.1][Official] crDroid Android [AOSP-Kernel 3.10]

AOSP ROMs - Android Development

Following threads are checked less frequently - reviewed on 23 Apr 2017

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[19 Jan 2017] [D6633] Resurrection Remix For Z3 Dual Sim

[21 Apr 2016] [6.0.1_r22][SM-4.9] OMNI ROM SABERMOD [DISCONTINUED]

[21 Apr 2016] [6.0.1_r22][SM-4.9.x] CyanogenMod 13.0 SaberMod Builds [DISCONTINUED]

[27 Jan 2016] Z3 (Leo) cm13 unofficial build

[06 Nov 2015] | ZyxxOS | 6.0 | V1.2 | Pure | Stable | Fast |

[16 Oct 2015] [MM][AOSP][WIP][ALPHA] Android Open Source Project 6.0 Marshmallow

Sony/Stock based ROMs - Original Android Development

[09 Apr 2017] [D6653/03][MM-291] VoLTE-Wifi Calling-SuperUser Mod-PreRooted Stock Odex Rom

[21 Nov 2016] Xperia Z3 M concept OTA zips

Sony/Stock based ROMs - Android Development

[10 Apr 2017] {D6603/33/53} Fragment ROM V5 Finalized Ultra [MM .291][LB/UB]

[09 Apr 2017] [D6643][5.1.1][6.0.1] Flashable Lollipop | Marshmallow pre-rooted with XZDualrecovery

[03 Apr 2017] [LB/UB][6603][MM] LinuXRoM_23.5.A.1.291 V16 (03/04) Deox Xperia XZ flavour

Following threads are checked less frequently - reviewed on 23 Apr 2017

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[28 Nov 2016] [Discontinued|ROM][6.0.1|STOCK][D6603|33|53] 23.5.A.1.291 SLiMM *kind of closed*

[23 Nov 2016] [D66XX]{5.0/5.1/6.0} Flashable stock LP/MM pre-rooted collection & XZ dualrecovery

[30 Oct 2016] [LB/UB] [MM 6.0.1] [291] [UPDATE:- 25-09-2016] PureX Z3 MM v6

[27 Oct 2016] [LB/UB][6.0.1][D6603]KryptoniaN-The ROM of Awesomeness v1[21/10/16]

[17 Oct 2016] [D6603][FIRMWARE][6.0.1] Xperia Z3 23.5.A.1.291 [PRE-ROOTED] Customized IT

[04 Oct 2016] [LB/UB] [6.0.1] [.291] [UPDATE :- 03-10-2016] Google Style Z3 v1

[27 Sep 2016] [LB/UB] 23.5.A.1.291 | Z3 | FINAL | eXistenZ Marshmallow | v5.6.5 | 27/09

[07 Sep 2016] [D6603][STOCK .291] World's Revolution System VXC, #NewXperience

[04 Sep 2016] D6633 MM 6.0.1 Prerooted 23.5.A.1.291 Hong Kong Customised

[30 Aug 2016] 23.5.a.1.291 Hong Kong pre-rooted&rec for d6633&d6683

[16 Aug 2016] [D6633][6.0.1]Xperia Z3Dual 23.5.A.1.291_Customized CE1-PreRooted-Recovery

[12 Aug 2016] [6.0.1][D6653] Z3 - 23.5.A.1.291 prerooted + recovery

[09 Aug 2016] [6.0.1][D6653/03/33] MK-XM2 v4.5.0 â–º| 3 MODS |â—„

[08 Aug 2016] [D6603] 23.5.A.1.291 DEODEXED Stock ROM (Kernel and Baseband Included)

[06 Aug 2016] [D6603][FIRMWARE][6.0.1] Xperia Z3 23.5.A.1.291 [PRE-ROOTED] Customized MEA

[04 Aug 2016] [UPDATE] Official Marshmallow 23.5.A.1.191 for Z3 Discussion (Rolling Out 04 August)

[04 Aug 2016] Sony XPERIA Z3 with firmware 23.5.A.1.291

[14 Jul 2016] Sony's Androidâ„¢ Concept Marshmallow Edition review + installation

[11 Jul 2016] [.238][LB/UB]☆|MoonWalker™ Amaluna ☆ Pro-Spect ☆ V5.2.0| ☆ D6603/33/53 ☆

[07 Jul 2016] [6.0.1][238][STOCK][MM][LB][UB] Xperia Performance Max Dark Furyâ„¢.zip

[30 Jun 2016] [xZ3][ROM][6.0.1][STOCK][MM][LB][UB] Xperia Performance Max Ultra Fury Allianceâ„¢ 1.0

[25 Jun 2016] [STOCK][FTF][Flashable][D6603][D6633] MM 6.0.1 build 23.5.A.0.575 [Customized MEA]

[03 Jun 2016] [AROMA] RXSW Marshmallow Edition [4.0.0] [03/06/16] [6.0.1] [OTA]

[22 May 2016] [6.0.1][D6653] Z3 - 23.5.A.0.575 prerooted + recovery

[21 May 2016] [D6603][6.0.1] Xperia Z3 23.5.A.0.575 Customized NCB [PRE-ROOTED]

[20 May 2016] [Preroot][TWRP][D6603][23.5.A.0.575 / R3D][6.0.1] Customized RU

[19 May 2016] [D6603] Z3_MM_Beta_23.5.A.1.151_Flashable.zip (RecRoot V3 included) Working

[29 Apr 2016] [D6603][6.0.1][Customized DE] Stock Sony Pre-rooted + Recovery flashable 23.5.A.0.570

[29 Apr 2016] D6603_Customized IT_23.5.A.0.570_R6D PREROOTED AND RECOVERY

[25 Apr 2016] [D6603][6.0.1][Customized US] Stock Sony Pre-rooted flashable 23.5.A.0.570

[24 Apr 2016] [6.0.1][D6653] Z3 - 23.5.A.0.570 prerooted + recovery

[09 Apr 2016] [FTF][D6603]Official Marshmallow[23.5.A.0.570][6.0.1]Customized RU

[31 Oct 2015] [MRA58K][6.0] Google Play Edition HD - Evolvere HD *thread closed*