Fix device not certified Error on Poco X4 GT

If you’ve been facing the ‘Device not certified’ error on your Poco X4 GT, then this article is for you. In this article, we will share a comprehensive step-by-step guide to fix the ‘Device not certified’ error on your Poco X4 GT.

Steps Fix device not certified Error:

• Open root explorer
• Go to /data/data/com.android.vending/shared_prefs.
• Locate the Finnish.xml file.
• Launch a text editor, navigate to the “device-google-certified” key, and then switch the value from “false” to “true.”
• Save & reboot

Fix on GSI:

go to Twrp terminal

touch /system/phh/secure
chmod 644 /system/phh/secure
ls -l /system/phh/secure

wipe data & reboot

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