partial bootloader-unlock-custom-rom phone Samsung d2att SGH-I747, SGH-I747M, Galaxy S III (AT&T), Samsung Galaxy S III (AT&T) SGH-I747SGH-I747MGalaxy S III (AT&T)Samsung Galaxy S III (AT&T)

Samsung Galaxy S III (AT&T)

Phone · Samsung

Partial Bootloader unlock + custom ROM

Difficulty

Moderate

Brick risk

Medium

Legal risk

Low

Not stock root. Needs an unlocked bootloader and a custom ROM.

US carrier Samsung Snapdragon models (AT&T/Verizon/T-Mobile/Sprint/US Cellular) are typically bootloader-locked and cannot be unlocked.

How-to

How to

Unlock the bootloader and install custom firmware (LineageOS and postmarketOS). postmarketOS status: testing.

Follow the specialist sources linked on this page. If this path is a jailbreak, unlock, or flash, the specialist wiki is the how-to — we do not copy those steps here.

Notes

postmarketOS builds for this device are based on LineageOS kernel source.

LineageOS 14.1 is available. Install with Heimdall.

SourcesNot yet verified

https://wiki.lineageos.org/devices/d2att/ wiki.lineageos.org
https://gitlab.com/postmarketOS/pmaports/-/tree/master/device/testing/device-samsung-i747m gitlab.com

Author canirootit research

Samsung Galaxy S III (AT&T)

How-to

How to

Notes

SourcesNot yet verified

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