T-Display S3 failed sot25 component

[MisterA]

Hi,

my T-Display S3 does not boot anymore. When I connect a usb cable the red led on the back lights but nothing more.
On my computer no serial port shows up either.

I had a look on the back and I noticed that one component was completely burnt.
I think it's a voltage regulator (3.3volts?) but I'm not sure.

Could someone have a look on their board and let me know the type of the component so I can replace it?
I can't read the lettering since it's burnt.

Looking at the back of the board with the usb connector to the right: it's the SOT25 (SOT23-5) component in the right corner down.
It's placed between some caps left and right.

Best regards

[teastain2]

@mistera I tried but could not determine which chip. There are 2 five-pin, one 3.3v reg and the other the battery charge controller.
Try poking around their GitHub here:
https://github.com/Xinyuan-LilyGO/T-Display-S3

https://github.com/Xinyuan-LilyGO/T-Display-S3/tree/main/schematic

https://github.com/Xinyuan-LilyGO/T-Display-S3/blob/main/image/T-DISPLAY-S3.jpg