[Tutorial] How to remove red watermark text on a Mediatek Android
[Tutorial] How to remove red watermark text on a Mediatek Android
27-02-2020, 10:28 PM
This error as seen in the screenshot below is usually as a result of formatting certain partitions on a mediatek android phone while flashing firmware i.e flashing firmware using format all + download or firmware upgrade
![[Image: how-to-remove-not-verify-red-text-on-a-m...-phone.jpg]](https://www.hovatek.com/blog/bpyeki/uploads/2020/02/how-to-remove-not-verify-red-text-on-a-mediatek-android-phone.jpg)
If could be
- Not verify
- Unwritten google key Unwritten tee key
- Tee key not write Google key not write
If you have a previous backup of the following 3 partitions (proinfo, protect1 and protect2) then simply flash them back to remove the red text but if you don't have a backup of these partition then continue with the guide below
How to remove "not verify" red error text on a mediatek android phone after flashing firmware
The steps below explain how to remove "not verify" red error text on a mediatek android phone after flashing firmware
Method 1: Editing build.prop
Requirements
- Root your phone ; you can do so using magisk @ https://www.hovatek.com/forum/thread-21427.html
- File manager with access to the root folder e.g Xplore, ES file explorer (available in playstore)
- Using the file manager, navigate to the /root/system, /system/product or /system depending on your device
- Scroll down till you find the file named "build.prop" or "prop.default", long-press the file > Edit the file
- Search for the properties below
Code:ro.mtk_trustkernel_tee_support=1 ro.tee_support=1 ro.agui_tee=TRUSTKERNEL
- Modify the values from 1 to 0
Code:ro.mtk_trustkernel_tee_support=0 ro.tee_support=0 # ro.agui_tee=TRUSTKERNEL
- Save the file and reboot the phone
- The error message should no longer be displayed
Method 2: ADB shell
Requirements
Steps
- Run the following commands:
Code:adb devices adb shell pm list packages
- Search the list of package names for those that contain the word factorymode, engineermode or watermark and take note of the package name
- Disable the package using the command
adb shell pm uninstall -k --user 0 packagename
- Some examples include
Code:adb shell pm uninstall -k --user 0 com.mediatek.factorymode adb shell pm uninstall -k --user 0 com.mediatek.engineermode adb shell pm uninstall -k --user 0 com.android.watermark
Method 3: SN Writer with TEE support
- Download a version of SN Writer with TEE Support (e.g v1.2020.0.0-415) @ https://www.hovatek.com/forum/thread-15450.html
- Write the original IMEI(s) using SN Writer
Important Notice- If you don't find the search properties within build.prop in /system partition, search for them within the build.prop in /vendor partition
- This might also work for those who encounter the error "Not efused" or some chinese text displayed at the top of their screen in red color. You can try and let us know the outcome
- Some examples include
This post was last modified: 23-11-2025, 06:19 PM by hovatek.
Learn MediaTek, Unisoc / Spreadtrum (SPD) and Qualcomm Software Repairs @ https://www.hovatek.com/training
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06-03-2025, 07:07 AM
06-03-2025, 01:52 PM
(06-03-2025, 07:07 AM)turashacyber Thanks for reply, but the phone is a Safaricom neon smarta 2 - powered by Spreadtrum SC9832E, is there a Serialnumber writer for this chipset?,
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