@w4mobiles: Buying used? These open your phone's built-in hardware test menu — check screen, touch, sensors, camera before you pay 👇 📲 Check IMEI (ANY phone): *#06# By brand: Google Pixel → *#*#7287#*#* Xiaomi / Redmi / POCO → *#*#6484#*#* OPPO → *#899# vivo → *#558# Realme → *# Samsung → **# OnePlus → *# (newer) / *# (older) Motorola → *#*#*#* Huawei → *#*#*#* Honor → *#*#*#* Sony Xperia → *#*#*#* Tecno → *#*#*#* Infinix → *#*#*#* Real talk: Tecno/Infinix open MediaTek Engineering Mode — only LOOK, don't change settings. Wrong taps here can brick your phone. For everyone else it's a safe hardware-test screen. ⚠️ Code not working? Some phones block these. Download "Device Info" from Play Store and test your mobile from there. 💬 Tell me your phone and I'll send the right code: Type 1 → Tecno/Infinix Type 2 → Xiaomi/Redmi Type 3 → Samsung No hype. Just facts.