请问各位大大，这个该如何延期呢？

sadmin

各位大佬，小弟不才，只知道明码显示9月1日到期，但是改了那个区域也刷不了，求教。。。万分感谢。。。


0 扇区
0 区块: 75 00 C3 05 B3 08 04 00 01 CE A6 5A 06 4E 72 1D
1 区块: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
2 区块: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
3 区块: FF FF FF FF FF FF FF 07 80 69 FF FF FF FF FF FF

1 扇区
0 区块: BA 8D C4 19 09 01 08 00 12 00 14 00 17 00 00 01
1 区块: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
2 区块: 00 00 00 0C 00 00 C0 00 00 00 00 00 02 01 00 00
3 区块: 8E 1A 01 10 C6 59 FF 07 80 69 12 3F 01 10 C6 59

2 扇区
0 区块: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
1 区块: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
2 区块: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
3 区块: 8E 1A 01 10 C6 59 FF 07 80 69 12 3F 01 10 C6 59

3 扇区
0 区块: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
1 区块: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
2 区块: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
3 区块: FF FF FF FF FF FF FF 07 80 69 FF FF FF FF FF FF

happyone

计算方法是后面所有字节求和，取低8位：
20190901：
BA =8D+C4+19+09+01+08+00+12+00+14+00+17+00+00+01=1BA,低8位是BA
20191001：
C1 =8D+C4+19+10+01+08+00+12+00+14+00+17+00+00+01=1C1,低8位是C1

konglang_616

明码有校验

1 扇区
0 区块: BA 8D C4 19 09 01 08 00 12 00 14 00 17 00 00 01


校验码 12L @happyone 已经给出计算方法

计算方法是后面所有字节求和，取低8位：
20190901：
BA =8D+C4+19+09+01+08+00+12+00+14+00+17+00+00+01=1BA,低8位是BA
20191001：
C1 =8D+C4+19+10+01+08+00+12+00+14+00+17+00+00+01=1C1,低8位是C1

sadmin

konglang_616 发表于 2019-8-28 08:15
明码但好像有校验

1 扇区

感谢回复，找物业延了一次期，其他地方没变，就是1扇区0区块变成了：
C1 8D C4 19 10 01 08 00 12 00 14 00 17 00 00 01

20190901：
BA 8D C4 19 09 01 08 00 12 00 14 00 17 00 00 01
20191001：
C1 8D C4 19 10 01 08 00 12 00 14 00 17 00 00 01

从BA变成C1，莫非是验证吗？

xiaoangyang

你这还有BA变C1，我的延期就日期变，然而改日期还无效

2751408506

那应该就是效验了，要算出来才有用

2751408506

20190901：
BA 8D C4 19 09 01 08 00 12 00 14 00 17 00 00 01
20191001：
C1 8D C4 19 10 01 08 00 12 00 14 00 17 00 00 01

是效验

wangshi467

都是高手啊。

wyrw003

我是来学习滴

wyrw003

我是来学习的

engineer1

jixu继续学习