Doubt regarding SIM808 layout, please review my schematic design.

[SUBHASISH PANDA]

--- Updated Jul 20, 2021 ---

PLZ VERIFY AND LET ME KNOW WHERE IS MY FAULT? BECAUSE I AM A VERY BEGINEER TO THE PCB DESIGN WORK.SO HELP ME OUT.THANK YOU.

 

[KlausST]

Hello,

Please don't shout at us.

Your headline talks about layout, but you don't show the layout.
The schematic shows (..examples)
* nodes without useful values (VOUT)
* non standard symbols (U2)
* no symbol/incorrectly used symbol/ wrong schematic (S2)
* parts without values (T1)
* parts with obviously wrong values (battery)
* ...

Please clean up your schematic and add the missing informations.

When I remember right, then there are schematic and example designs available (in datasheets, application notes, design notes...)

If you want us to validate the schematics of complex parts, then please add links to the datasheets.

Klaus