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GalaxyTabSerial » History » Version 5

Denis 'GNUtoo' Carikli, 03/02/2021 10:50 PM

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h1. GalaxyTabSerial
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{{toc}}
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h2. Introduction
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The Galaxy Tab and Galaxy Tab 2 tablets have a custom 30 pin connector.
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The goal is to get access to the SOC UART to interact with the bootloader, get kernel boot logs, etc.
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To make it easier we want to reuse existing cables without much modifications to the cables.
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While this is being tested on the Galaxy Tab 2, it should also work on the Galaxy Tab.
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h2. Movitelonline "Cable UART Dual Samsung Galaxy Tab P1000 / Tab 2 / Note / Note 2 [RJ45 + USB]"
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*link*: "shop page":https://www.movitelonline.com/b2c/producto/RJ45-USB-UNIBOX-CABLE-SAMSUNG-GALAXY-TAB-GT-P1000/1/cable-uart-dual-samsung-galaxy-tab-p1000-tab-2-note-note-2-rj45-usb-
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*Exported pins*: USB D+, USB D-, USB VCC, USB GND, UART RX, UART TX. The ID pin isn't exported.
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The USB cable can be plugged in a regular computer.
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The RX and TX and GND are exported on the RJ45 cable.
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With the clip on the bottom, we have:
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<pre>
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+-----------------------------------------------------+
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| [] [] [RX or TX?] [RX or TX?] [] [] [] [GND] [] []  |
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|                                                     |
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|                                                     |
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.......................................................
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</pre>
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TODO: Test RX and TX, to what are they exported? The modem? The SOC?
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h2. REferences
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* The "Galaxy Tab Serial Cable thread":https://forum.xda-developers.com/showthread.php?t=1010314 on XDA. It also contains some pinout for the 30 pin connector.