In this guide, we will walk you through extracting the OCDTL.IMG file from your OnePlus device. Despite being only a shadow of its former self, OxygenOS still remains better than its Chinese counterpart ColorOS. The result was that many users had immediately ditched ColorOS for OxygenOS to enjoy a relatively bloat-free experience.
However, the journey wasn’t without its share of problems. One of the most concerning and frustrating issues users encounter is issues associated with auto-brightness and screen flickering. It is a good thing that the developers did their part, and after extensive research, it turned out that you need to flash the ocdt to your device.
In spite of this, downloading the entire firmware just to get a single file proved difficult for some. Now you can directly extract the ocdt.img from your OnePlus device and share it with everyone else. You will learn exactly how to do that in this guide. Let’s get started.
How to Extract ocdt.img from OnePlus Device
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Your first step should be to root your device via Magisk.
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Install Android SDK Platform Tools on your PC by downloading and extracting them.
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You can now enable USB Debugging on your device and connect it to your PC via a USB cable.
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Then type CMD into the address bar and hit Enter. Using this command, you will launch the Command Prompt.
- Tap OK/Allow when you see a prompt on your device after typing in the below command.
adb shell
- After you type in the below command, you’ll see a Magisk request on your device, tap it to grant it.
su
- To extract ocdt.img, type in the two commands below, and then exit the program.
dd if=/dev/block/bootdevice/by-name/ocdt of=/sdcard/ocdt.img exit
- As a result, you will now find a copy of ocdt.img in the platform-tools folder that you can share with others.
Download Extracted ocdt.img from OnePlus
Additionally, we have gathered a few OCDT files from the extracted firmware, which you can get hold of below [only download if it matches the build number of the firmware installed on your device].
CPH2487_ocdt.img CPH2449_ocdt.img
How to Flash ocdt.img on OnePlus
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You will need to move the ocdt.img file to the platform-tools folder first.
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After that, you will need to enable USB Debugging and connect your device to your PC.
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Enter the following command to boot your device into Fastboot mode
adb reboot bootloader
- The last step in flashing the ocdt on your OnePlus is to execute the below command
fastboot flash ocdt ocdt.img
This naming scheme makes it clear that it is a recommended practice to include the build number in the file name, as you can see from the naming scheme. A particular ocdt.img can only be used with the firmware from which it was extracted, as it is only compatible with the firmware from which it has been extracted. On that note, we would like to conclude this guide. Please let us know if you have any questions or concerns regarding the above-mentioned steps in the comments section. We will get back to you as soon as possible with a solution to your problem.