manoranjitham Said:
"Yellow screen: HI once I updated my iPhone 13 promax to the latest one[...]"
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Thank you for the photo.
Troubleshooting Screen Issues After an Update:
Try Another Update, Via a PC:
See if you can install another update, this time using a computer...
A. Update Using a Computer:
Have a Computer Handy? If so, try using a computer to update. Go here: Update your iPhone Using a Computer - User Tip. If any updates are available, they will install, sure enough.
B. Troubleshooting a Black iPhone Screen:
The iPhone might be stuck in a boot loop. This can typically occur when you update something, and it got stuck while in the process.  So, refer to my user tip: How to Fix an iPhone in a Boot Loop - User Tip
C. Report this to Apple:
Do your Part: Provide Apple with feedback on this. Apple wont get back to you directly, but the more they hear of this, the more they will know what is going on, and what needs to be fixed.
To Provide Feedback:
- Go Here:Â Feedback - iPhone - Apple
- Select: "Bug Report" for the "Feedback Type"
- Comment: that this all began after installing update. Include the URL of this thread.
- Proceed from there as necessary