Learn how to check the DRM Key on various Sony Xperia models to understand potential issues when losing DRM KEY and the impact on the device when unlocking the bootloader.
Present in Vietnam for a considerable time, recent Sony Xperia models offer diverse designs with uncertain origins, raising concerns about potential risks such as lost DRM KEY and the impact of bootloader unlocking.

With the affordable prices also come risks, including compromised quality, unlocked bootloader, or rooted devices leading to DRM KEY loss. This implies a complete loss of official warranty support from the manufacturer.
Unlocking the Secrets of DRM KEY on Sony Xperia Devices
DRM KEY is a unique code from Sony designed to verify the origin of your device. This code activates proprietary features like Bravia Engine/X-Reality/Super vivid, BIONZ, Download Music Info, and more.
DRM KEY resides in the crucial Trim Area Partition. When unlocking the bootloader, it's imperative to back up this partition. Failure to understand this can lead to permanent loss of the DRM KEY. Even searching online for relocking the bootloader won't help recover the DRM KEY.
Guide to Checking DRM Key on Various Sony Xperia Models
From the home screen > tap the phone icon > dial a call > enter the command *#*#7378423#*#*
The device will automatically run a hardware check on Sony. First, verify if your device allows bootloader unlocking by navigating to Service info > Configuration.



For Rooting Status:
- Line bootloader unlock allowed: Yes means your device can be bootloader unlocked.
- Line bootloader unlock allowed: No means your device cannot be bootloader unlocked.
For the line Bootloader unlocked: Yes, it indicates that your device has already been bootloader unlocked.
Next, let's guide you on how to check if your device has lost DRM KEY and how to assess its status. To perform the check, go to Service Tests > Security.


- If all status lines are displayed: it implies that your device's system is functioning normally without any software-related issues.
- If you notice a line like that, it means your device has lost its DRM KEY.
In general, losing the DRM KEY on your device mainly affects the performance of displaying images or videos on your Sony phone. You may lose exclusive features provided by Sony, but all other functions will continue to work normally. While images or videos may not look great when viewed directly on the device, you can rest assured that they will display well when exported to a computer or shared on Facebook.
