This experience occurred when I tried repairing the Redmi Note 4 Mediatek (Nickel) brick. Insert the firmware into the SP Flash Tool, and checked all partitions. However, the cust.img file has been replaced with a smaller size than the original. I tried twice with Download Only and Firmware Upgrade. Both failed, and a BROM ERROR STATUS DA EXCEED MAX NUM message appeared.
Finally, I found two solutions to fix them.
- Connect the smartphone to the computer without pressing the Volume Up or Volume Down button. Just plug it in.
- The Preloader file does not match, replace the preloader file that comes from a normal phone backup.
After successfully flashed, the smartphone back to life. Note, don't try Format All + Download to update the Nikel operating system with the SP Flash Tool. The IMEI will lost and must rewrite.