What should I do if the hard disk has a logic lock? - China DOS Union Forum

Remove the bad hard disk, connect a new hard disk, boot into DOS real mode, and then run the DEBUG command C:\windows\command\DEBUG. At this point insert a blank floppy disk into the floppy drive, then in the DEBUG environment type the following characters:

-A 0100
XXXX:0100 XOR AX,AX
XXXX:0102 PUSH AX
XXXX:0103 POP DS
XXXX:0104 PUSH AX
XXXX:0105 POP ES
XXXX:0106 MOV CX,100
XXXX:0109 MOV BX,7C00
XXXX:010C MOV WORD PTR ,00
XXXX:0110 INC BX
XXXX:0111 INC BX
XXXX:0112 LOOP 10C
XXXX:0114 MOV AX,0301
XXXX:0117 MOV CX,0001
XXXX:011A MOV DX,80
XXXX:011D MOV BX,7C00
XXXX:0120 INT 13
XXXX:0122 JMP FFFF:0000
XXXX:0127
-W 100 0 0 1
-Q

　　At this point, the system will write a special piece of boot information to this blank floppy, and then this special boot disk will be ready.

　　Finally shut down the computer, swap in that bad hard disk, and connect it as the primary disk. Reconfigure all the hard disk parameters in the BIOS, and set the system to boot from drive A. Then restart the computer, insert that special boot disk into the floppy drive, and the computer will automatically restart. Then remove that special boot disk, insert the WIN98 startup disk, repartition the hard disk, and reinstall WIN98. At this point all the hard disk problems will be eliminated.

Floor1　shark1127	Posted 2003-12-26 00:00
初级用户　Posts 1　Credits 103
What should I do if the hard disk has a logic lock?Please give me some pointers, experts!

Floor2　Wengier	Posted 2003-12-26 00:00
系统支持　Posts 10,521　Credits 27,736
First unlock it according to that article.

Floor3　wphs0326	Posted 2004-03-21 00:00
银牌会员　Posts 509　Credits 1,708　From 安徽淮南
Remove the bad hard disk, connect a new hard disk, boot into DOS real mode, and then run the DEBUG command C:\windows\command\DEBUG. At this point insert a blank floppy disk into the floppy drive, then in the DEBUG environment type the following characters: -A 0100 XXXX:0100 XOR AX,AX XXXX:0102 PUSH AX XXXX:0103 POP DS XXXX:0104 PUSH AX XXXX:0105 POP ES XXXX:0106 MOV CX,100 XXXX:0109 MOV BX,7C00 XXXX:010C MOV WORD PTR ,00 XXXX:0110 INC BX XXXX:0111 INC BX XXXX:0112 LOOP 10C XXXX:0114 MOV AX,0301 XXXX:0117 MOV CX,0001 XXXX:011A MOV DX,80 XXXX:011D MOV BX,7C00 XXXX:0120 INT 13 XXXX:0122 JMP FFFF:0000 XXXX:0127 -W 100 0 0 1 -Q 　　At this point, the system will write a special piece of boot information to this blank floppy, and then this special boot disk will be ready. 　　Finally shut down the computer, swap in that bad hard disk, and connect it as the primary disk. Reconfigure all the hard disk parameters in the BIOS, and set the system to boot from drive A. Then restart the computer, insert that special boot disk into the floppy drive, and the computer will automatically restart. Then remove that special boot disk, insert the WIN98 startup disk, repartition the hard disk, and reinstall WIN98. At this point all the hard disk problems will be eliminated.

Floor4　Wengier	Posted 2004-03-21 00:00
系统支持　Posts 10,521　Credits 27,736
Uh, the poster above, did you read this article or not: http://newdos.yginfo.net/dosart42.htm And you still used such a troublesome method, honestly.

Floor5　wphs0326	Posted 2004-03-21 00:00
银牌会员　Posts 509　Credits 1,708　From 安徽淮南
Wengier: Sorry, I've made a fool of myself. But I still admire you quite a lot.

Floor6　Kinglion	Posted 2004-03-21 00:00
铂金会员　Posts 1,924　Credits 5,798　From 金獅電腦軟體工作室
Does everyone still remember the “Jiangmin bomb” incident that caused such a huge stir? It seems that was a “logic lock.” Later, a corresponding unlocking program was also published online.