ScreenShot Black on apps but in games have picture

Please tell us some basic information before asking for help:
- Model Name:ROG3
- Firmware Version: on picture
- Rooted or not: not
- Frequency of Occurrence:
- APP Name & APP Version (If your issue relates to the app):
In addition to information above, please also provide as much details as you can, e.g., using scenario, what troubleshooting you've already done, screenshot, etc.
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In game i can screen shot but in apps or bigo my cellphone cant screenshot just black sample on the picture pls help me dev thank you
Pls help me dev
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Comments
@joshua.aquino18d That's strange. I'll send you instructions on how to log your device via PM.
Help pls
I did click thr modem /wifi fw log tool
I need your attention sir theres no diag 27 only 28
I need attention sir to finish your instruction pls
Sir i need ur attention pls :( just now guide me sir pls Asap
Before i do it again i want to talk with you to have a guide sir pls answer me
@joshua.aquino18d I'll send you another PM. 🙂
@joshua.aquino18d Please do not share personal information in the future like that. You can respond directly in the PM with my instructions.
@joshua.aquino18d Do you have developer mode turned on? If so, try disabling developer mode and try again.
Also, try doing this:
Reboot your phone, put it in flight mode and then take a screenshot before doing anything else. Does it work?