User Activity

مشكله كبيره حصلت لجهاز samsung galaxy A15 بعد عمل bootloader unlock الجهاز بقي بيفصل شبكة المحمول كل ٧ ساعات واازم أعمل ريستارت عشان ترجع تشتغل تاني
After I unlocked my A15 bootloader there's weird bug that mobile network fall off occasionally after 6-7 hrs and I have to reboot android to get mobile network back again . is it software or hardware issue and there's solution to it or not yet?