Samsung Exynos devices: Connect the device in EUB mode - ChimeraTool help

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Samsung Exynos devices: Connect the device in EUB mode

This document created at Aug 8, 2023, 10:19:02 AM and modified at Sep 18, 2023, 6:41:59 PM.

Chimera Tool can perform various procedures on Samsung Exynos devices, but in most cases, removing the back cover and using Test Points is necessary to put the device in the right mode. In this article we will show you how you can do that.

We're supporting phones in Exynos USB Booting (EUB) mode, which is a low-level interface for devices equipped with Exynos SoCs. Similar to the Emergency Download Mode (EDL), which is available for Qualcomm SoCs. This mode is usually available on devices that cannot boot up, but is also accessible via hardware Test-Point. Via this port, It's possible to upload and boot to ODIN mode, which later can be used to flash the device with a firmware. We're currently supporting Samsung phones in this mode.

EUB mode is handled via UsbDk, you don't need to have a specific Exynos driver.

There are two methods of connecting the device in EUB mode.

Method 1

This is the Autodetect mode where you can connect the device using test points, while Chimera recognizes the phone. If you don't know how to find test points of your device, please visit our Test Points Library here:

This Auto detection mechanism does not work for every model, so we introduced a new method as well.

Method 2

This is called the  Device wizard. By using this panel you can select your phone model from the list, which will create a virtual device. Once you selected your device model from the list click on Create Virtual device. Keep in mind, do not connect the phone as of now.

Once the Virtual device had been created you will see the available procedures for it. You can select the Boot Repair procedure by clicking on the blue box.


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