Assalam o Alaikum.. Bhai I have Redmi 7a phone.. It has amazing problem.. Sometimes its network become no service and after 6, 7 hours it become normal.. Mobile maintenaner heat up network ic and phone become good for 1 week but now again creating problem.. In urdu.. Kisi kisi waqt network ghaeb ho jata hai aur phir khud e kuch ghanty baad wapis aa jata hai.. Ic kharab hoti tou pakka band ho jata but aisa bhi nahi hai.. Ic ko heat up bhi kia mechanic ne.. Aap k khayal me kya problem hai