Before starting, remember that flashing a custom ROM can void your warranty and, if done incorrectly, brick your device.
If you want to move forward with updating or recovering your device, let me know: oppo a37m custom rom fixed
A compatible Team Win Recovery Project image customized specifically for the OPPO A37m. Before starting, remember that flashing a custom ROM
processor found in the A37m/A37t. This ensures that the modem, camera, and sensors function correctly, avoiding the "black screen" or "stuck at logo" issues common with incorrect firmware. Flashing Requirements if done incorrectly