[Sony Xperia S, Acro S, Ion] jeriku:
LT28at, LT28i and LT28h Index of threads:

I thought I'd try and put together an index of the useful threads for the LT28. I'm sure I've missed many, let me know and I'll update the OP.

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GENERAL:

LT28 WIKI.

http://xdaforums.com/wiki/Sony_Xperia_ion

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SYSTEM THREADS:

Firmware:

Stock Firmware thread. Covers all the released stock Sony Firmwares.

http://xdaforums.com/showthread.php?t=1752345

Pre-rooted and deodexed Stock Firmware:

Pre-rooted LT28 firmware for locked and unlocked bootloaders, flashable through CWM.

http://xdaforums.com/showthread.php?t=2055043

Flashing, Unlocking and Rooting Guides:

Covers the steps to flashing firmware and the current best rooting method

http://xdaforums.com/showthread.php?t=1812168

Bootloader Locking and Unlocking.

ttp://xdaforums.com/showthread.php?t=1753261

Unsecure Kernel + root for unlocked bootloader:

http://xdaforums.com/showthread.php?t=1751065

How to flash Boot.img

http://xdaforums.com/showthread.php?t=1963961

Recovery:

Installing Clockworkmod recovery - http://xdaforums.com/showthread.php?t=1830170

Xperia ION Dual Recovery (CWM-TWRP) - http://xdaforums.com/showthread.php?t=2634375

Instructions of how to recover from Soft-Brick

http://xdaforums.com/showthread.php?t=1849170

Init.d Support:

http://xdaforums.com/showthread.php?t=1841202

Deodexing:

Instructions on how to do your own deodexing and also links to deodex installs premade by others.

http://xdaforums.com/showthread.php?t=1863052

APNs:

AT&T APN:

http://xdaforums.com/showpost.php?p=32801377&postcount=78

Straight Talk APN:

http://xdaforums.com/showpost.php?p=32660512&postcount=1

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KERNELS:

G1 Kernel

http://xdaforums.com/showthread.php?t=2047456

OC Kernel (based on FXP)

http://xdaforums.com/showthread.php?p=33223925

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ROMS:

Custom roms that require an unlocked bootloader / custom kernel:

CM10 - http://xdaforums.com/showthread.php?t=1929623

CM9 - http://xdaforums.com/showthread.php?t=1929629

AOKP - http://xdaforums.com/showthread.php?t=2003910

PA - http://xdaforums.com/showthread.php?t=1953780

Slim Bean - http://xdaforums.com/showthread.php?t=2211757

Beanstalk KitKat - http://xdaforums.com/showthread.php?t=2639517

CM-11.0 - OpenSEMC - http://xdaforums.com/showthread.php?t=2590849

SlimKat - Aoba - http://xdaforums.com/showthread.php?t=2607380

PureSlim-KitKat R1 - http://xdaforums.com/showthread.php?t=2616450

Pure CyanogenMod+ | R1 Base-FXP 218 - http://xdaforums.com/showthread.php?t=2276545

Roms that do not require an unlocked bootloader and can use stock or custom kernel:

MIUI - http://xdaforums.com/showthread.php?t=1931200

MIUI V5 - http://xdaforums.com/showthread.php?t=2498755

CM10 - http://xdaforums.com/showthread.php?t=2597877

Android Open Kang Project - http://xdaforums.com/showthread.php?t=2644751

Roms based on stock firmware that do not require an unlocked bootloader and use stock kernel:

(ICS) - XTXperience - http://xdaforums.com/showthread.php?t=2089194

(ICS) - XZXperience - http://xdaforums.com/showthread.php?t=2157394

(JB) - Official Xperia S .96 Firmware [Port to ION] - http://xdaforums.com/showthread.php?t=2422437

(JB) - Slim ION - http://xdaforums.com/showthread.php?t=2614532

(JB) - Aoba Pure Black - http://xdaforums.com/showthread.php?t=2485148

(JB) - Honami Style V3x - http://xdaforums.com/showthread.php?t=2499183

(JB) - Nature Xperia Advance v3 - http://xdaforums.com/showthread.php?t=2561888

(JB) - Pure ION - http://xdaforums.com/showthread.php?t=2622315

(JB) - ZperiaION 4.5 - http://xdaforums.com/showthread.php?t=2546253

(JB) - Honami/Z1 Full Port V2 - http://xdaforums.com/showthread.php?t=2603875

(JB) - eXistenZ Ultra 1.4.0 - eXistenZ Ultra 1.4.0

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MODS and APPS:

MODs and Apps Index by abo hani

http://xdaforums.com/showthread.php?t=2404436

Smooth Ion

http://xdaforums.com/showthread.php?t=1969634

A Collection of System UIs with many toggle options and AOSP locksceen.

http://xdaforums.com/showthread.php?t=1875404

Port of the Xperia keyboard for non stock roms, like MIUI and CM9/10.

http://xdaforums.com/showthread.php?t=1940377

Jelly Bean Keyboard Port.

http://xdaforums.com/showthread.php?t=1975153

Small apps port.

http://xdaforums.com/showthread.php?t=1936373

SD Mounter as Mass Storage.

http://xdaforums.com/showthread.php?t=1944133

Onscreen Soft Keys.

http://xdaforums.com/showthread.php?t=1882446

Brighter LED.

http://xdaforums.com/showthread.php?t=1956735

Xperia Home launcher ( Mod for customizing the stock xperia home launcher).

http://xdaforums.com/showthread.php?t=1922846

Xperia T Tab 'n' Grid (systemui mod that adds many settings to the stock Xperia systemui, like toggles, transparencies etc..)

http://xdaforums.com/showthread.php?t=2051009

Xperia Jelly Bean Tab 'n' Grid (JB systemui mod that adds many settings to the stock Xperia systemui, like toggles, transparencies etc..)

http://xdaforums.com/showthread.php?t=2072757

MIUI Center Clock and 4-way reboot.

http://xdaforums.com/showthread.php?t=1944425

Location based WIFI port.

http://xdaforums.com/showthread.php?t=1933346

Original Theme Project.

http://xdaforums.com/showthread.php?t=1881659

Inifinite View.

http://xdaforums.com/showthread.php?t=1926471

Lockscreen Rotation.

http://xdaforums.com/showthread.php?t=2031518

Search key remap to power.

http://xdaforums.com/showthread.php?t=1848268

Cyber-Shot camera mod.

http://xdaforums.com/showthread.php?t=1950862

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HARDWARE:

Disassembly of the Xperia Ion (Video).

http://xdaforums.com/showthread.php?t=2015408

Back Plate Removal (w/ Photos).

http://xdaforums.com/showthread.php?t=1798192

Mic repair steps (w/ photos).

http://xdaforums.com/showthread.php?p=32843854

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DISCUSSIONS:

ION Development Discussion

http://xdaforums.com/showthread.php?t=1939546

ION Battery Discussion

http://xdaforums.com/showthread.php?t=1992205

ION General Discussion

http://xdaforums.com/showthread.php?t=1981602