Sim is not working properly

If I put in sim cartilage and turn on mobile network so it automatically it will turn on and off continually

์ด ์งˆ๋ฌธ์— ๋‹ตํ•˜๊ธฐ ์ €๋„ ๊ฐ™์€ ๋ฌธ์ œ๊ฐ€ ์žˆ์Šต๋‹ˆ๋‹ค

์ข‹์€ ์งˆ๋ฌธ์ž…๋‹ˆ๊นŒ?

์ ์ˆ˜ 0
๋Œ“๊ธ€ ๋‹ฌ๊ธฐ