WDR7500v3 刷breed，openwrt，不开机，所有指示灯没反应，不亮！

cce***

WDR7500v3想玩玩openwrt，直接刷openwrt原厂固件有验证刷不了，先刷breed，看教程，焊TTL线，刷breed机，刷openwdr，顺利？？？！！但现在开不了机了，路由器电源接通后，所有指示灯没有反应，不开机。
但用连上TTL线可以开机（用TTL供电），联网进breed正常，甚至可以进breed刷机，刷好的openwdr用TTL供电也可以正常启动，真奇怪，
气死我了，有和我情况一样的网友吗？希望高手直招，能修好吗？？总经经验，关于TTL线的链接，个人认为刷机的时候，只要链接TTL线即可供电，串口转TTL上电压先5V，千万不要接路由器电源，

我认为，出现故障就是连TTL线后，TTL上有供电，与主板供电出现冲突，总成现在开不了机的情况，为什么？？？

cce***

下面是连TTL，SecureCRT的启动信息，一切正常，openwdr启动正常

Boot and Recovery Environment for Embedded Devices
Copyright (C) 2020 HackPascal <hackpascal@gmail.com>
Build date 2020-10-09 [git-676bfd4]
Version 1.1 (r1286)

DRAM: 128MB
Platform: Qualcomm Atheros QCA9558 rev 0
Board: Atheros AP152 reference board
Clocks: CPU: 720MHz, DDR: 600MHz, AHB: 200MHz, Ref: 40MHz
Flash: Winbond W25Q64 (8MB) on ath79-spi
ag71xx-eth: Using MAC address 00:8b:40:23:00:a9
Waiting for auto-negotiation complete ... OK
eth0: Atheros AR8327/AR8328 rev 4

Network started on eth0, inet addr 192.168.1.1, netmask 255.255.255.0

Press any key to interrupt autoboot ... 0   

Trying to boot firmware from 0x9f020000 ...
TP-LINK firmware image header detected.
    Image Name:   75000003
    Data Size:    2047469 Bytes
    Load Address: 80060000
    Entry Point:  80060000
Uncompressing data (LZMA) ... done.
Flushing cache ... done.

Starting kernel at 0x80060000...

[    0.000000] Linux version 5.4.143 (builder@buildhost) (gcc version 8.4.0 (OpenWrt GCC 8.4.0 r16279-5cc0535800)) #0 Tue Aug 31 22:20:08 2021
[    0.000000] printk: bootconsole [early0] enabled
[    0.000000] CPU0 revision is: 00019750 (MIPS 74Kc)
[    0.000000] MIPS: machine is TP-Link TL-WDR7500 v3
[    0.000000] SoC: Qualcomm Atheros QCA9558 ver 1 rev 0
[    0.000000] Initrd not found or empty - disabling initrd
[    0.000000] Primary instruction cache 64kB, VIPT, 4-way, linesize 32 bytes.
[    0.000000] Primary data cache 32kB, 4-way, VIPT, cache aliases, linesize 32 bytes
[    0.000000] Zone ranges:
[    0.000000]   Normal   [mem 0x0000000000000000-0x0000000007ffffff]
[    0.000000] Movable zone start for each node
[    0.000000] Early memory node ranges
[    0.000000]   node   0: [mem 0x0000000000000000-0x0000000007ffffff]
[    0.000000] Initmem setup node 0 [mem 0x0000000000000000-0x0000000007ffffff]
[    0.000000] Built 1 zonelists, mobility grouping on.  Total pages: 32480
[    0.000000] Kernel command line: console=ttyS0,115200n8 rootfstype=squashfs,jffs2
[    0.000000] Dentry cache hash table entries: 16384 (order: 4, 65536 bytes, linear)
[    0.000000] Inode-cache hash table entries: 8192 (order: 3, 32768 bytes, linear)
[    0.000000] Writing ErrCtl register=00000000
[    0.000000] Readback ErrCtl register=00000000
[    0.000000] mem auto-init: stackff, heap allocff, heap freeff
[    0.000000] Memory: 122180K/131072K available (5250K kernel code, 193K rwdata, 688K rodata, 1220K init, 205K bss, 8892K reserved, 0K cma-reserved)
[    0.000000] SLUB: HWalign=32, Order=0-3, MinObjects=0, CPUs=1, Nodes=1
[    0.000000] NR_IRQS: 51
[    0.000000] random: get_random_bytes called from 0x8065fa28 with crng_init=0
[    0.000000] CPU clock: 720.000 MHz
[    0.000000] clocksource: MIPS: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 5309056796 ns
[    0.000007] sched_clock: 32 bits at 360MHz, resolution 2ns, wraps every 5965232126ns
[    0.008686] Calibrating delay loop... 359.42 BogoMIPS (lpj=718848)
[    0.043572] pid_max: default: 32768 minimum: 301
[    0.048854] Mount-cache hash table entries: 1024 (order: 0, 4096 bytes, linear)
[    0.057014] Mountpoint-cache hash table entries: 1024 (order: 0, 4096 bytes, linear)
[    0.069688] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 7645041785100000 ns
[    0.080556] futex hash table entries: 256 (order: -1, 3072 bytes, linear)
[    0.088231] pinctrl core: initialized pinctrl subsystem
[    0.096201] NET: Registered protocol family 16
[    0.122984] workqueue: max_active 576 requested for napi_workq is out of range, clamping between 1 and 512
[    0.136788] clocksource: Switched to clocksource MIPS
[    0.143254] thermal_sys: Registered thermal governor 'step_wise'
[    0.143561] NET: Registered protocol family 2
[    0.155279] IP idents hash table entries: 2048 (order: 2, 16384 bytes, linear)
[    0.163983] tcp_listen_portaddr_hash hash table entries: 512 (order: 0, 4096 bytes, linear)
[    0.173368] TCP established hash table entries: 1024 (order: 0, 4096 bytes, linear)
[    0.181927] TCP bind hash table entries: 1024 (order: 0, 4096 bytes, linear)
[    0.189794] TCP: Hash tables configured (established 1024 bind 1024)
[    0.196988] UDP hash table entries: 256 (order: 0, 4096 bytes, linear)
[    0.204316] UDP-Lite hash table entries: 256 (order: 0, 4096 bytes, linear)
[    0.212362] NET: Registered protocol family 1
[    0.217273] PCI: CLS 0 bytes, default 32
[    0.224965] workingset: timestamp_bits=14 max_order=15 bucket_order=1
[    0.238116] squashfs: version 4.0 (2009/01/31) Phillip Lougher
[    0.244655] jffs2: version 2.2 (NAND) (SUMMARY) (LZMA) (RTIME) (CMODE_PRIORITY) (c) 2001-2006 Red Hat, Inc.
[    0.267163] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 251)
[    0.278777] pinctrl-single 1804002c.pinmux: 544 pins, size 68
[    0.285776] gpio-export gpio-export: 2 gpio(s) exported
[    0.292382] Serial: 8250/16550 driver, 16 ports, IRQ sharing enabled
[    0.301520] printk: console [ttyS0] disabled
[    0.306362] 18020000.uart: ttyS0 at MMIO 0x18020000 (irq = 9, base_baud = 2500000) is a 16550A
[    0.315991] printk: console [ttyS0] enabled
[    0.315991] printk: console [ttyS0] enabled
[    0.324890] printk: bootconsole [early0] disabled
[    0.324890] printk: bootconsole [early0] disabled
[    0.355775] spi-nor spi0.0: s25fl064k (8192 Kbytes)
[    0.360774] 3 fixed-partitions partitions found on MTD device spi0.0
[    0.367231] Creating 3 MTD partitions on "spi0.0":
[    0.372117] 0x000000000000-0x000000020000 : "u-boot"
[    0.377977] 0x000000020000-0x0000007f0000 : "firmware"
[    0.385686] 2 tplink-fw partitions found on MTD device firmware
[    0.391725] Creating 2 MTD partitions on "firmware":
[    0.396792] 0x000000000000-0x0000001f3fed : "kernel"
[    0.402642] 0x0000001f3ff0-0x0000007d0000 : "rootfs"
[    0.408430] mtd: device 3 (rootfs) set to be root filesystem
[    0.415693] 1 squashfs-split partitions found on MTD device rootfs
[    0.422018] 0x000000560000-0x0000007d0000 : "rootfs_data"
[    0.428292] 0x0000007f0000-0x000000800000 : "art"
[    0.435501] libphy: Fixed MDIO Bus: probed
[    0.770596] libphy: ag71xx_mdio: probed
[    0.777352] switch0: Atheros AR8327 rev. 4 switch registered on mdio.0
[    1.148782] random: fast init done
[    1.362011] ag71xx 19000000.eth: connected to PHY at mdio.0:00 [uid=004dd034, driver=Atheros AR8216/AR8236/AR8316]
[    1.373076] eth0: Atheros AG71xx at 0xb9000000, irq 4, mode: rgmii
[    1.694515] ag71xx 1a000000.eth: connected to PHY at fixed-0:00 [uid=00000000, driver=Generic PHY]
[    1.704177] eth1: Atheros AG71xx at 0xba000000, irq 5, mode: sgmii
[    1.710806] i2c /dev entries driver
[    1.716569] NET: Registered protocol family 10
[    1.726158] Segment Routing with IPv6
[    1.730019] NET: Registered protocol family 17
[    1.734609] bridge: filtering via arp/ip/ip6tables is no longer available by default. Update your scripts to load br_netfilter if you need this.
[    1.747769] 8021q: 802.1Q VLAN Support v1.8
[    1.752783] PCI host bridge /ahb/pcie-controller@18250000 ranges:
[    1.759037]  MEM 0x0000000012000000..0x0000000013ffffff
[    1.764344]   IO 0x0000000000000001..0x0000000000000001
[    1.769797] PCI host bridge to bus 0000:00
[    1.773986] pci_bus 0000:00: root bus resource [mem 0x12000000-0x13ffffff]
[    1.780966] pci_bus 0000:00: root bus resource [io  0x0001]
[    1.786624] pci_bus 0000:00: root bus resource [??? 0x00000000 flags 0x0]
[    1.793513] pci_bus 0000:00: No busn resource found for root bus, will use [bus 00-ff]
[    1.801579] pci 0000:00:00.0: [168c:003c] type 00 class 0x028000
[    1.807730] pci 0000:00:00.0: reg 0x10: [mem 0x00000000-0x001fffff 64bit]
[    1.814672] pci 0000:00:00.0: reg 0x30: [mem 0x00000000-0x0000ffff pref]
[    1.821541] pci 0000:00:00.0: supports D1 D2
[    1.826910] pci_bus 0000:00: busn_res: [bus 00-ff] end is updated to 00
[    1.833661] pci 0000:00:00.0: BAR 0: assigned [mem 0x12000000-0x121fffff 64bit]
[    1.841102] pci 0000:00:00.0: BAR 6: assigned [mem 0x12200000-0x1220ffff pref]
[    1.850240] hctosys: unable to open rtc device (rtc0)
[    1.861243] VFS: Mounted root (squashfs filesystem) readonly on device 31:3.
[    1.872860] Freeing unused kernel memory: 1220K
[    1.877462] This architecture does not have kernel memory protection.
[    1.883999] Run /sbin/init as init process
[    2.497419] init: Console is alive
[    2.501101] init: - watchdog -
[    3.675256] kmodloader: loading kernel modules from /etc/modules-boot.d/*
[    3.718476] usbcore: registered new interface driver usbfs
[    3.724145] usbcore: registered new interface driver hub
[    3.729648] usbcore: registered new device driver usb
[    3.739918] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
[    3.747954] ehci-fsl: Freescale EHCI Host controller driver
[    3.754846] ehci-platform: EHCI generic platform driver
[    3.760436] ehci-platform 1b000000.usb: EHCI Host Controller
[    3.766232] ehci-platform 1b000000.usb: new USB bus registered, assigned bus number 1
[    3.774275] ehci-platform 1b000000.usb: irq 14, io mem 0x1b000000
[    3.792805] ehci-platform 1b000000.usb: USB 2.0 started, EHCI 1.00
[    3.799813] hub 1-0:1.0: USB hub found
[    3.804065] hub 1-0:1.0: 1 port detected
[    3.808605] ehci-platform 1b400000.usb: EHCI Host Controller
[    3.814420] ehci-platform 1b400000.usb: new USB bus registered, assigned bus number 2
[    3.822476] ehci-platform 1b400000.usb: irq 15, io mem 0x1b400000
[    3.840812] ehci-platform 1b400000.usb: USB 2.0 started, EHCI 1.00
[    3.847798] hub 2-0:1.0: USB hub found
[    3.852001] hub 2-0:1.0: 1 port detected
[    3.858353] kmodloader: done loading kernel modules from /etc/modules-boot.d/*
[    3.876080] init: - preinit -
[    5.169062] random: jshn: uninitialized urandom read (4 bytes read)
[    5.286902] random: jshn: uninitialized urandom read (4 bytes read)
[    5.436854] random: jshn: uninitialized urandom read (4 bytes read)
[    6.508768] eth1: link up (1000Mbps/Full duplex)
[    6.516856] IPv6: ADDRCONF(NETDEV_CHANGE): eth1: link becomes ready
[    6.528884] IPv6: ADDRCONF(NETDEV_CHANGE): eth1.1: link becomes ready
Press the [f] key and hit [enter] to enter failsafe mode
Press the [1], [2], [3] or [4] key and hit [enter] to [    6.574805] urandom_read: 4 callbacks suppressed
select the debug[    6.574812] random: procd: uninitialized urandom read (4 bytes read)
level
[   10.747900] jffs2: notice: (578) jffs2_build_xattr_subsystem: complete building xattr subsystem, 14 of xdatum (0 unchecked, 6 orphan) and 17 of xref (6 dead, 0 orphan) found.
[   10.765440] mount_root: switching to jffs2 overlay
[   10.773223] overlayfs: upper fs does not support tmpfile.
[   10.783630] urandom-seed: Seeding with /etc/urandom.seed
[   10.878158] eth1: link down
[   10.898345] procd: - early -
[   10.901407] procd: - watchdog -
[   11.469828] procd: - watchdog -
[   11.489273] procd: - ubus -
[   11.553081] random: ubusd: uninitialized urandom read (4 bytes read)
[   11.561540] random: ubusd: uninitialized urandom read (4 bytes read)
[   11.573678] procd: - init -
Please press Enter to activate this console.
[   12.470381] kmodloader: loading kernel modules from /etc/modules.d/*
[   12.546433] Loading modules backported from Linux version v5.10.42-0-g65859eca4dff
[   12.554165] Backport generated by backports.git v5.10.42-1-0-gbee5c545
[   12.613019] xt_time: kernel timezone is -0000
[   12.838754] PPP generic driver version 2.4.2
[   12.853519] NET: Registered protocol family 24
[   12.928544] urngd: v1.0.2 started.
[   12.932409] ath10k 5.10 driver, optimized for CT firmware, probing pci device: 0x3c.
[   12.949534] ath10k_pci 0000:00:00.0: enabling device (0000 -> 0002)
[   12.956066] ath10k_pci 0000:00:00.0: pci irq legacy oper_irq_mode 1 irq_mode 0 reset_mode 0
[   13.138591] random: crng init done
[   16.416412] ath10k_pci 0000:00:00.0: qca988x hw2.0 target 0x4100016c chip_id 0x043202ff sub 0000:0000
[   16.425813] ath10k_pci 0000:00:00.0: kconfig debug 0 debugfs 1 tracing 0 dfs 1 testmode 0
[   16.438031] ath10k_pci 0000:00:00.0: firmware ver 10.1-ct-8x-__fW-022-ecad3248 api 2 features wmi-10.x,has-wmi-mgmt-tx,mfp,txstatus-noack,wmi-10.x-CT,ratemask-CT,txrate-CT,get-temp-CT,tx-rc-CT,cust-stats-CT,retry-gt2-CT,txrate2-CT,beacon-cb-CT,wmi-block-ack-CT crc32 3e4cf97f
[   16.866019] ath10k_pci 0000:00:00.0: board_file api 1 bmi_id N/A crc32 bebc7c08
[   17.825421] ath10k_pci 0000:00:00.0: 10.1 wmi init: vdevs: 16  peers: 127  tid: 256
[   17.842763] ath10k_pci 0000:00:00.0: wmi print 'P 128 V 8 T 410'
[   17.849089] ath10k_pci 0000:00:00.0: wmi print 'msdu-desc: 1424  sw-crypt: 0 ct-sta: 0'
[   17.857243] ath10k_pci 0000:00:00.0: wmi print 'alloc rem: 24984 iram: 38672'
[   17.910456] ath10k_pci 0000:00:00.0: htt-ver 2.1 wmi-op 2 htt-op 2 cal file max-sta 128 raw 0 hwcrypto 1
[   17.924052] ath10k_pci 0000:00:00.0: NOTE:  Firmware DBGLOG output disabled in debug_mask: 0x10000000
[   18.125001] ieee80211 phy1: Atheros AR9550 Rev:0 mem=0xb8100000, irq=12
[   18.166354] kmodloader: done loading kernel modules from /etc/modules.d/*
[   31.030713] eth1: link up (1000Mbps/Full duplex)
[   31.043404] br-lan: port 1(eth1.1) entered blocking state
[   31.048932] br-lan: port 1(eth1.1) entered disabled state
[   31.054702] device eth1.1 entered promiscuous mode
[   31.059600] device eth1 entered promiscuous mode
[   31.065429] IPv6: ADDRCONF(NETDEV_CHANGE): eth1: link becomes ready
[   31.095787] br-lan: port 1(eth1.1) entered blocking state
[   31.101310] br-lan: port 1(eth1.1) entered forwarding state
[   31.173822] Atheros AR8216/AR8236/AR8316 mdio.0:00: Port 2 is up
[   31.181738] eth0: link up (1000Mbps/Full duplex)
[   31.240537] IPv6: ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready
[   32.044863] IPv6: ADDRCONF(NETDEV_CHANGE): br-lan: link becomes ready



BusyBox v1.33.1 (2021-08-31 22:20:08 UTC) built-in shell (ash)

  _______                     ________        __
|       |.-----.-----.-----.|  |  |  |.----.|  |_
|   -   ||  _  |  -__|     ||  |  |  ||   _||   _|
|_______||   __|_____|__|__||________||__|  |____|
          |__| W I R E L E S S   F R E E D O M
-----------------------------------------------------
OpenWrt 21.02.0, r16279-5cc0535800
-----------------------------------------------------
=== WARNING! =====================================
There is no root password defined on this device!
Use the "passwd" command to set up a new password
in order to prevent unauthorized SSH logins.
--------------------------------------------------

cce***

修好了，电源部分的芯片烧了（APW7120 ），更换就ok了，芯片很便宜6毛一个，包邮，不好意思买一个，直接买了5片。这个芯片很多主板和液晶上也用。

csc***

ccedab 发表于 2021-10-20 08:59
修好了，电源部分的芯片烧了（APW7120 ），更换就ok了，芯片很便宜6毛一个，包邮，不好意思买一个，直接买 ...