大佬们，手里的7981设备砖了，求指导救砖

我是851

配置是7981 512+128 nor flash，有原机备份文件

我是851

ttl读取到：



F0: 102B 0000
FA: 0000 0000
V0: 0000 0000 [0001]
00: 0000 0000
BP: 2400 0041 [0000]
G0: 1190 0000
EC: 0000 0000 [0000]
T0: 0000 022A [010F]
Jump to BL

NOTICE:  BL2: v2.7(release):
NOTICE:  BL2: Built : 19:22:10, Sep 19 2022
NOTICE:  WDT: disabled
NOTICE:  EMI: Using DDR3 settings

dump toprgu registers data:
1001c000 | 00000000 0000ffe0 00000000 00000000
1001c010 | 00000fff 00000000 00f00000 00000000
1001c020 | 00000000 00000000 00000000 00000000
1001c030 | 003c0003 003c0003 00000000 00000000
1001c040 | 00000000 00000000 00000000 00000000
1001c050 | 00000000 00000000 00000000 00000000
1001c060 | 00000000 00000000 00000000 00000000
1001c070 | 00000000 00000000 00000000 00000000
1001c080 | 00000000 00000000 00000000 00000000

dump drm registers data:
1001d000 | 00000000 00000000 00000000 00000000
1001d010 | 00000000 00000000 00000000 00000000
1001d020 | 00000000 00000000 00000000 00000000
1001d030 | 00a083f1 000003ff 00100000 00000000
1001d040 | 00000000 00000000 00020303 000000ff
1001d050 | 00000000 00000000 00000000 00000000
1001d060 | 00000002 00000000 00000000 00000000
drm: 500 = 0x8
[DDR Reserve] ddr reserve mode not be enabled yet
DDR RESERVE Success 0
[EMI] ComboMCP not ready, using default setting
BYTE_swap:0
BYTE_swap:0
Window Sum 536, worse bit 4, min window 64
Window Sum 508, worse bit 13, min window 60
Window Sum 416, worse bit 1, min window 50
Window Sum 346, worse bit 9, min window 38
Window Sum 422, worse bit 4, min window 50
Window Sum 362, worse bit 11, min window 40
Window Sum 438, worse bit 4, min window 52
Window Sum 378, worse bit 9, min window 44
Window Sum 388, worse bit 9, min window 44
Window Sum 444, worse bit 4, min window 52
Window Sum 398, worse bit 9, min window 46
Window Sum 454, worse bit 1, min window 56
Window Sum 408, worse bit 9, min window 46
Window Sum 464, worse bit 4, min window 56
Window Sum 418, worse bit 9, min window 50
Window Sum 428, worse bit 8, min window 52
Window Sum 474, worse bit 3, min window 58
NOTICE:  EMI: Detected DRAM size: 512MB
NOTICE:  EMI: complex R/W mem test passed
NOTICE:  CPU: MT7981 (1300MHz)
ERROR:   No Flash Device Matched
ERROR:   spi nor init fail -22

我是851

我去，图片发不出来，我手打下
bl2.bin
uboot.bin
fac.bin
fip.bin
firm.bin
ker.bin
roots.bin
rootsdate.bin

我是851

我是851 发表于 2025-12-3 16:57
我去，图片发不出来，我手打下
bl2.bin
uboot.bin

这是我的备份文件

1562004423

ttl下用mtk_uartboot工具刷一下bl2和uboot试试

bishiping

什么设备啊，挺好奇的，7981搭配nor flash

无焱冰

bishiping 发表于 2025-12-3 17:33
什么设备啊，挺好奇的，7981搭配nor flash

xdr3020v2不就是

ca972008

按教程来就可以，你这bl2，和fip都有，

自学中的老年人

稳啊，文件全部备份了。 TTL 救砖 一下就好了。