Rare, but happens. Dial *#7284# → select “UART” → “Modem” → restart. Still null? Use a free tool like MTK Engineering Mode (but B310E isn’t MTK). Simpler: Reflash with a different CSC file from the same CM2 pack.
Leave a comment below with your exact error code. Our team responds within 24 hours. samsung b310e flash file cm2 without password free
No. This flash file is exclusively for SM-B310E (Guru Music 2). Flashing on other models may brick the device. Rare, but happens