-level format gets stuck at some point. In this case, you can scan in "Write" mode. It can also erase sectors but need to occupy MRT interface. The third method is to use the erasing function of subsecurity system. Enabling this function doesn't need to  occupy MRT interface. 

Here we demonstrate the second method -- scan in "Write" mode to erase sectors. After erasing, the hard drive can be used.

Erasing is completed. Let's scan the hard drive. We can see there are fewer bad tracks with small amount of blocks in yellow and pink. At this time, we can repeat from step 1 to step 4 and continue to append remaining bad tracks to non-resident list. Let's demonstrate this operation. Re-scan and record defects to file. Load defect file to non-resident list editor by appending (clear G-List with command "i4" and then import). Write to hard drive (merge adjacent entries, here we merge the entries with the distance of 256 sectors) and recalculate translator. Then we scan in "Write" mode to erase the hard drive. Now we can see bad tracks shielded in normal scan.

Supplement:
1. The scanned sectors are shown in pink, red and yellow in disk scanning program. The reading speed of yellow sectors is slow, which need to be added to defect list. At this time, we just need to check "with delay" in scanning parameters and then yellow blocks can be added to defect list.

2. If there are too many defects added, the capacity of hard drive will be reduced. In this case, we need to modify HDD capacity before recalculating translator. Otherwise it will cause loss of defect entries. The sequence should be, write to non-resident list, modify HDD capacity (Tools -> SA tools -> Edit HDD field) and recalculate translator. 

In addition, we also suggest users modify the capacity under "Edit HDD ID".

This tutorial is released by MRT Lab http://www.mrtlab.com
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Download link of video tutorial: https://us.mrtlab.com/video/sgtngthdbad.rar