I am facing a weird issue that when I put all over the circuit of the prototype in a box (casing) mainly antenna there is some network registration like fetching IP issue and sometimes and My MCU will resetting. So, I will solve IP issue but I can't find why MCU continuously restart again n again after approx 10 Sec start of code and GSM module network registration time and when I pull out antenna outside from the casing or Box circuit working fine.
Another thing I noticed when I put my GSM cellular Module Antenna in the casing but behind the MCU PCB working also fine and there no resetting issue but if I placed top side of PCB or facing toward to Topside of PCB Actually i am using cable Antenna so, I can place everywhere in BOX or casing of my product.
Please if anyone faced the same problem and solved it please help me. I am attaching a MCU circuit section also So, Please find the images,
schematic of MCU power supply booster section And
