While BROM mode is the most direct hardware-level access, manufacturers are locking it to prevent unauthorized repairs.
Before you try any fix, understand that "Preloader Hot" is rarely a physical heat issue. Unless your phone just came out of an oven or has a shorted charging IC, the CPU temperature is normal. oppo realme mtk preloader hot
| | Chipset | Specific Fix | | --- | --- | --- | | Realme C11 (2021) | MT6765G | Needs battery disconnect + Auth bypass every time | | OPPO A15s | MT6762 | Use SP Flash Tool v5.2020 or higher – older versions always give Preloader Hot | | Realme Narzo 30 | MT6785 | Requires shorting test point (TP) to enter BROM; preloader is locked | | OPPO A54 | MT6765 | Flash using "Download Only" – not "Format All" – otherwise triggers hot lock | While BROM mode is the most direct hardware-level
Since 2021, OPPO and Realme require authentication. To bypass "Preloader Hot", you must load a compatible DA (Download Agent) and Auth file. | | Chipset | Specific Fix | |