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Hi to all,
I purchased recently a Fritzbox 7590 which apparently is in bootloop: the POWER / DSL light comes on, in flashed some seconds, then becomes steady, then suddenly everything goes out, all the lights flash briefly, and it starts all over again.
The seller refunded me and told me to throw it away, but I'm not so pleased with that solution. Connected to the PC it is not detected, so I was unable to deal with the recovery image; I also tried with the phone number method with no luck.
I am completely new to this world, but after some online search I managed to open the serial console, these are the results:
Following in next post
I think it could be similar to this but I can't see burns or any kind of damage on the board, but I will check again if necessary.
Thanks in advance
I purchased recently a Fritzbox 7590 which apparently is in bootloop: the POWER / DSL light comes on, in flashed some seconds, then becomes steady, then suddenly everything goes out, all the lights flash briefly, and it starts all over again.
The seller refunded me and told me to throw it away, but I'm not so pleased with that solution. Connected to the PC it is not detected, so I was unable to deal with the recovery image; I also tried with the phone number method with no luck.
I am completely new to this world, but after some online search I managed to open the serial console, these are the results:
Code:
ROM VER: 2.1.0
CFG 09
B
.
.
.
*
*
*
*
*
Detected PXB4583el V1.2-2000
.[piglet] Suceeded
(AVM) EVA Revision: 1.3258
(C) Copyright 2005 AVM Date: Mar 10 2017 Time: 12:11:34 (1) 3 0x0-0x46409
[NAND:] 512MB TOSHIBA 4096 Pagesize 256k Blocksize 2048 Blocks
[SYSTEM:] GRX5 (ID 0x24 Revision 2) on 1000MHz/600MHz/666MHz
#Loading compressed kernel to 0x852852B0
............................................................................................................................Device Tree Blob for SubRevision 4 not found.
Using Device Tree Blob of SubRevision 0
-------------------------------------------
Switching to Bootcore Console
-------------------------------------------
[ 0.000000] Linux version 4.9.198 (jenkins@wxtagsxVersionx72206xPSQ19xgrxB5) (gcc version 8.3.0 (Buildroot 2018.11.4-gb80f08fe4) ) #1 Tue Jun 16 21:08:00 CEST 2020
[ 0.000000] avm_check_isa_features: isa_level 0x00000031
[ 0.000000] avm_check_cpu_features: mips-options (cache flags preliminary!): 0x000000c00059638b ases 0x00000001
[ 0.000000] avm_check_cpu_features: (preliminary flags: MIPS_CPU_CACHE_CDEX_P MIPS_CPU_PREFETCH MIPS_CPU_INCLUSIVE_CACHES MIPS_CPU_CACHE_CDEX_S)
[ 0.000000] SoC: GRX500 rev 1.2
[ 0.000000] bootconsole [early0] enabled
[ 0.000000] CPU0 revision is: 00019074 (MIPS 4KEc)
[ 0.000000] MIPS: machine is GRX550 ANYWAN BOOTCORE (MIPS 4Kec)
[ 0.000000] bootconsole [early0] enabled
[ 0.000000] Determined physical RAM map:
[ 0.000000] memory: 02000000 @ 0e000000 (usable)
[ 0.000000] memory: 00001ab8 @ 0e781030 (reserved)
[ 0.000000] memory: 00040000 @ 0dfc0000 (reserved)
[ 0.000000] Initial ramdisk at: 0x8e000000 (4194304 bytes)
[ 0.000000] avm_check_pcache_features: mips-options (preliminary MIPS_CPU_CACHE_CDEX_S flag): 0x000000c0005d638b icache.flags 0x00000000 dcache.flags 0x00000004
[ 0.000000] Primary instruction cache 32kB, VIPT, 4-way, linesize 16 bytes.
[ 0.000000] Primary data cache 32kB, 4-way, VIPT, cache aliases, linesize 16 bytes
[ 0.000000] avm_check_scache_features: mips-options: 0x000000c0005d638b
[ 0.000000] Zone ranges:
[ 0.000000] Normal [mem 0x000000000e000000-0x000000000fffffff]
[ 0.000000] Movable zone start for each node
[ 0.000000] Early memory node ranges
[ 0.000000] node 0: [mem 0x000000000e000000-0x000000000fffffff]
[ 0.000000] Initmem setup node 0 [mem 0x000000000e000000-0x000000000fffffff]
[ 0.000000] On node 0 totalpages: 8192
[ 0.000000] free_area_init_node: node 0, pgdat 8e780620, node_mem_map 8f005620
[ 0.000000] Normal zone: 64 pages used for memmap
[ 0.000000] Normal zone: 0 pages reserved
[ 0.000000] Normal zone: 8192 pages, LIFO batch:0
[ 0.000000] [fw-info] Version 07.20
[ 0.000000] pcpu-alloc: s0 r0 d32768 u32768 alloc=1*32768
[ 0.000000] pcpu-alloc: [0] 0
[ 0.000000] Built 1 zonelists in Zone order, mobility grouping on. Total pages: 8128
[ 0.000000] Kernel command line: console=ttyLTQ0,115200n8r root=/dev/ram rw loglevel=8
[ 0.000000] PID hash table entries: 128 (order: -3, 512 bytes)
[ 0.000000] Dentry cache hash table entries: 4096 (order: 2, 16384 bytes)
[ 0.000000] Inode-cache hash table entries: 2048 (order: 1, 8192 bytes)
[ 0.000000] Memory: 24076K/32768K available (2649K kernel code, 395K rwdata, 736K rodata, 180K init, 258K bss, 8692K reserved, 0K cma-reserved)
[ 0.000000] SLUB: HWalign=32, Order=0-3, MinObjects=0, CPUs=1, Nodes=1
[ 0.000000] NR_IRQS:527
[ 0.000000] grx500_bootcore_register_static_irq: irq_in = 0x0000001f, irq_out = 0x0000001f
[ 0.000000] grx500_bootcore_register_static_irq: mapper_reg = 0x0000015c, mapper_offset = 0x00000000
[ 0.000000] EXCEP_remap_line: int_line = 0x0000001f, map_address = 0x0000015c, num = 0x00000000
[ 0.000000] EXCEP_remap_line: org_map = 0x00000000, result_map = 0x0000001f
[ 0.000000] CPU Clock: 300MHz
[ 0.000000] clocksource: MIPS: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 12741736309 ns
[ 0.000022] sched_clock: 32 bits at 150MHz, resolution 6ns, wraps every 14316557820ns
[ 0.015344] : grx500_bootcore_console_init: call register
[ 0.025725] console [ttyLTQ0] enabled
[ 0.025725] console [ttyLTQ0] enabled
[ 0.036200] bootconsole [early0] disabled
[ 0.036200] bootconsole [early0] disabled
[ 0.047719] bootconsole [early0] disabled
[ 0.047719] bootconsole [early0] disabled
[ 0.055698] Calibrating delay loop... 299.26 BogoMIPS (lpj=598528)
[ 0.094120] pid_max: default: 32768 minimum: 301
[ 0.099198] Mount-cache hash table entries: 1024 (order: 0, 4096 bytes)
[ 0.105641] Mountpoint-cache hash table entries: 1024 (order: 0, 4096 bytes)
[ 0.121470] devtmpfs: initialized
[ 0.129266] ngi: Protecting Bootcore: [0x2e000000, 0x2fffffff]
[ 0.134939] ngi: 512MB attached. Protecting: [0x40000000, 0x9fffffff]
[ 0.141290] ngi: Unattached: [0x60000000, 0x9fffffff]
[ 0.146296] ngi: Unattached: [0x40000000, 0x5fffffff]
[ 0.151903] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 7645041785100000 ns
[ 0.161524] futex hash table entries: 256 (order: -1, 3072 bytes)
[ 0.167790] pinctrl core: initialized pinctrl subsystem
[ 0.174357] NET: Registered protocol family 16
[ 0.192672] irq: no irq domain found for /interrupt-controller@0x14900140 !
[ 0.282929] clocksource: Switched to clocksource MIPS
[ 0.310201] NET: Registered protocol family 2
[ 0.316633] TCP established hash table entries: 1024 (order: 0, 4096 bytes)
[ 0.323627] TCP bind hash table entries: 1024 (order: 0, 4096 bytes)
[ 0.329865] TCP: Hash tables configured (established 1024 bind 1024)
[ 0.336718] UDP hash table entries: 256 (order: 0, 4096 bytes)
[ 0.342534] UDP-Lite hash table entries: 256 (order: 0, 4096 bytes)
[ 0.349207] NET: Registered protocol family 1
[ 0.357473] Unpacking initramfs...
[ 1.106939] random: fast init done
[ 1.257489] Freeing initrd memory: 4096K
[ 1.268365] workingset: timestamp_bits=30 max_order=13 bucket_order=0
[ 1.332368] Serial: grx500_bootcore driver init
[ 1.340366] libphy: Fixed MDIO Bus: probed
[ 1.347888] NET: Registered protocol family 10
[ 1.362130] NET: Registered protocol family 17
[ 1.373667] Serial: grx500_bootcore driver startup
[ 1.378419] grx500_bootcore_register_static_irq: irq_in = 0x0000001c, irq_out = 0x00000008
[ 1.386494] grx500_bootcore_register_static_irq: mapper_reg = 0x00000158, mapper_offset = 0x00000003
[ 1.395585] EXCEP_remap_line: int_line = 0x00000008, map_address = 0x00000158, num = 0x00000003
[ 1.404292] EXCEP_remap_line: org_map = 0x00000000, result_map = 0x00040000
[ 1.416034] Freeing unused kernel memory: 180K
[ 1.420389] This architecture does not have kernel memory protection.
[ 1.597827] eip123_hw: module license 'Proprietary' taints kernel.
[ 1.604016] Disabling lock debugging due to kernel taint
[ 1.616091] eip123 1e000000.eip123: Detected hardware version 2.2.2
[ 1.622337] eip123 1e000000.eip123: my_id=0 master_id=0 num_mailboxes=4 mailbox_size=256
[ 1.630231] eip123 1e000000.eip123: Configured mailbox lockout: 0x00000000
[ 1.637046] eip123 1e000000.eip123: Linked mailbox number 1
[ 1.666989] eip123 1e000000.eip123: Sysinfo: FWVersion=2.4.2 HWVersion=2.2.2 MemorySize=32768 HostId=0 Identity=0 NVMAnomaly=0 NVMAnomalyLocation=0
[ 1.902931] eip123 1e000000.eip123: eip123_hw init successful
[ 1.935717] random: crng init done
[ 1.962963] eip123 1e000000.eip123: Device responded with error_src=0x0 error=0x1 opcode=0x1c
[ 1.971349] eip123 1e000000.eip123: Could not find rootkey in OTP
[ 1.978027] eip123 1e000000.eip123: Unlinked mailboxes
[ 2.027932] cpunet 1f107400.cpunet: slots=16 mtu=8192 mailbox_size=0x4c mempool_size=0x20000
[ 2.036413] cpunet 1f107400.cpunet: Initialized mailbox: rx=0xbf201100 tx=0xbf201000
[ 2.044509] cpunet 1f107400.cpunet: Initialized mempool: rx=0x8dfe0000 tx=0x8dfc0000 min_align=64
[ 2.053202] grx500_bootcore_register_static_irq: irq_in = 0x00000016, irq_out = 0x0000000b
[ 2.061373] grx500_bootcore_register_static_irq: mapper_reg = 0x00000154, mapper_offset = 0x00000003
[ 2.070447] EXCEP_remap_line: int_line = 0x0000000b, map_address = 0x00000154, num = 0x00000003
[ 2.079181] EXCEP_remap_line: org_map = 0x00000000, result_map = 0x00058000
[ 2.086297] cpunet 1f107400.cpunet: hw init successful
jC��������������������������������������������H�H�H��ݥэ�����to Interaptiv Console
-------------------------------------------
..
Device Tree Blob for SubRevision 4 not found.
Using Device Tree Blob of SubRevision 1
[ 0.000000] Linux version 4.9.198 (jenkins@haredxbuildxjplxpsq19p1xgrx5xnws) (gcc version 8.3.0 (Buildroot 2018.11.4-gd0078a7b1) ) #1 SMP Mon Jun 22 16:45:20 CEST 2020
[ 0.000000] avm_check_isa_features: isa_level 0x00000031
[ 0.000000] avm_check_cpu_features: mips-options (cache flags preliminary!): 0x000088c40e69638b ases 0x00000030
[ 0.000000] avm_check_cpu_features: (preliminary flags: MIPS_CPU_CACHE_CDEX_P MIPS_CPU_PREFETCH MIPS_CPU_INCLUSIVE_CACHES MIPS_CPU_CACHE_CDEX_S)
[ 0.000000] SoC: GRX500 rev 1.2
[ 0.000000] bootconsole [early0] enabled
[ 0.000000] CPU0 revision is: 0001a120 (MIPS interAptiv (multi))
[ 0.000000] Enhanced Virtual Addressing (EVA Legacy 512MB) activated
[ 0.000000] MIPS: machine is AVM7590 (GRX550, HW226) Main model
[ 0.000000] Coherence Manager IOCU detected
[ 0.000000] Hardware DMA cache coherency disabled
[ 0.000000] OF: fdt:Reserved memory (avm): reserved region for property 'urlader': base 0x20010000, size 0x00030000
[ 0.000000] OF: fdt:Reserved memory (avm): reserved region for property 'VMB': base 0x20000000, size 0x00001000
[ 0.000000] OF: fdt:Reserved memory (avm): reserved region for property 'avm_reboot_string': base 0x20001000, size 0x00000200
[ 0.000000] Determined physical RAM map:
[ 0.000000] memory: 10000000 @ 30000000 (usable)
[ 0.000000] memory: 0e000000 @ 20000000 (usable)
[ 0.000000] memory: 0000bd17 @ 21038038 (reserved)
[ 0.000000] memory: 00040000 @ 2dfc0000 (reserved)
[ 0.000000] memory: 00400000 @ 20100000 (reserved)
[ 0.000000] memory: 00030000 @ 20010000 (reserved)
[ 0.000000] memory: 00001200 @ 20000000 (reserved)
[ 0.000000] cma: Reserved 64 MiB at 0x24000000
[ 0.000000] SMPCMP: CPU0: cmp_smp_setup
[ 0.000000] VPE topology {2,2} total 4
[ 0.000000] Detected 3 available secondary CPU(s)
[ 0.000000] avm_check_pcache_features: mips-options (preliminary MIPS_CPU_CACHE_CDEX_S flag): 0x000088c40e6d638b icache.flags 0x00000000 dcache.flags 0x00000020
[ 0.000000] Primary instruction cache 32kB, VIPT, 4-way, linesize 32 bytes.
[ 0.000000] Primary data cache 32kB, 4-way, PIPT, no aliases, linesize 32 bytes
[ 0.000000] MIPS secondary cache 256kB, 8-way, linesize 32 bytes.
[ 0.000000] avm_check_scache_features: mips-options: 0x000088c40e6d638b
[ 0.000000] Zone ranges:
[ 0.000000] DMA [mem 0x0000000020000000-0x0000000027ffffff]
[ 0.000000] Normal [mem 0x0000000028000000-0x000000003fffffff]
[ 0.000000] Movable zone start for each node
[ 0.000000] Early memory node ranges
[ 0.000000] node 0: [mem 0x0000000020000000-0x000000002dffffff]
[ 0.000000] node 0: [mem 0x0000000030000000-0x000000003fffffff]
[ 0.000000] Initmem setup node 0 [mem 0x0000000020000000-0x000000003fffffff]
[ 0.000000] [fw-info] Version 07.20
[ 0.000000] [module-mem] Use 0x284a6000-0x28e34fff (mapped at 884a6000-88e34fff) for 80 modules
[ 0.000000] percpu: Embedded 12 pages/cpu s18096 r8192 d22864 u49152
[ 0.000000] Built 1 zonelists in Zone order, mobility grouping on. Total pages: 121728
[ 0.000000] Kernel command line: console=ttyLTQ0,115200 audit=1
[ 0.000000] audit: enabled (after initialization)
[ 0.000000] PID hash table entries: 2048 (order: 1, 8192 bytes)
[ 0.000000] Dentry cache hash table entries: 65536 (order: 6, 262144 bytes)
[ 0.000000] Inode-cache hash table entries: 32768 (order: 5, 131072 bytes)
[ 0.000000] Writing ErrCtl register=00000000
[ 0.000000] Readback ErrCtl register=00000000
[ 0.000000] Memory: 388116K/491520K available (7744K kernel code, 2042K rwdata, 1700K rodata, 344K init, 6113K bss, 37868K reserved, 65536K cma-reserved)
[ 0.000000] SLUB: HWalign=32, Order=0-3, MinObjects=0, CPUs=4, Nodes=1
[ 0.000000] Hierarchical RCU implementation.
[ 0.000000] NR_IRQS:527
[ 0.000000] EIC is off
[ 0.000000] VINT is on
[ 0.000000] CPU Clock: 1000000000Hz mips_hpt_frequency 500000000Hz
[ 0.000000] clocksource: gptc: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 9556302233 ns
[ 0.000010] sched_clock: 32 bits at 200MHz, resolution 5ns, wraps every 10737418237ns
[ 0.008423] Calibrating delay loop... 718.84 BogoMIPS (lpj=1437696)
[ 0.040922] pid_max: default: 32768 minimum: 301
[ 0.045748] Security Framework initialized
[ 0.049819] AppArmor: AppArmor initialized
[ 0.054008] Mount-cache hash table entries: 1024 (order: 0, 4096 bytes)
[ 0.060643] Mountpoint-cache hash table entries: 1024 (order: 0, 4096 bytes)
[ 0.069226] CCA is coherent, multi-core is fine
[ 0.073672] avm_register_cpuid: cpu_id=0: LINUX core=0 tc=0
[ 0.079350] Performance counters: mips/interAptiv PMU enabled, 2 32-bit counters available to each CPU, irq 9
GOT IPI to launch from CPU 1
GOT IPI to launch from CPU 2
GOT IPI to launch from CPU 3
[ 0.092690] avm_check_isa_features: isa_level 0x00000031
[ 0.092730] avm_check_cpu_features: mips-options (cache flags preliminary!): 0x000088c40e6d638b ases 0x00000030
[ 0.092734] avm_check_cpu_features: (preliminary flags: MIPS_CPU_CACHE_CDEX_P MIPS_CPU_PREFETCH MIPS_CPU_INCLUSIVE_CACHES MIPS_CPU_CACHE_CDEX_S)
[ 0.092755] avm_check_pcache_features: mips-options (preliminary MIPS_CPU_CACHE_CDEX_S flag): 0x000088c40e6d638b icache.flags 0x00000000 dcache.flags 0x00000020
[ 0.092762] Primary instruction cache 32kB, VIPT, 4-way, linesize 32 bytes.
[ 0.092768] Primary data cache 32kB, 4-way, PIPT, no aliases, linesize 32 bytes
[ 0.092780] MIPS secondary cache 256kB, 8-way, linesize 32 bytes.
[ 0.092784] avm_check_scache_features: mips-options: 0x000088c40e6d638b
[ 0.093077] CPU1 revision is: 0001a120 (MIPS interAptiv (multi))
[ 0.120675] avm_register_cpuid: cpu_id=1: LINUX core=0 tc=1
[ 0.122947] avm_check_isa_features: isa_level 0x00000031
[ 0.122986] avm_check_cpu_features: mips-options (cache flags preliminary!): 0x000088c40e6d638b ases 0x00000030
[ 0.122990] avm_check_cpu_features: (preliminary flags: MIPS_CPU_CACHE_CDEX_P MIPS_CPU_PREFETCH MIPS_CPU_INCLUSIVE_CACHES MIPS_CPU_CACHE_CDEX_S)
[ 0.123009] avm_check_pcache_features: mips-options (preliminary MIPS_CPU_CACHE_CDEX_S flag): 0x000088c40e6d638b icache.flags 0x00000000 dcache.flags 0x00000020
[ 0.123016] Primary instruction cache 32kB, VIPT, 4-way, linesize 32 bytes.
[ 0.123022] Primary data cache 32kB, 4-way, PIPT, no aliases, linesize 32 bytes
[ 0.123033] MIPS secondary cache 256kB, 8-way, linesize 32 bytes.
[ 0.123037] avm_check_scache_features: mips-options: 0x000088c40e6d638b
[ 0.123186] CPU2 revision is: 0001a120 (MIPS interAptiv (multi))
[ 0.150954] avm_register_cpuid: cpu_id=2: LINUX core=1 tc=0
[ 0.153233] avm_check_isa_features: isa_level 0x00000031
[ 0.153272] avm_check_cpu_features: mips-options (cache flags preliminary!): 0x000088c40e6d638b ases 0x00000030
[ 0.153275] avm_check_cpu_features: (preliminary flags: MIPS_CPU_CACHE_CDEX_P MIPS_CPU_PREFETCH MIPS_CPU_INCLUSIVE_CACHES MIPS_CPU_CACHE_CDEX_S)
[ 0.153295] avm_check_pcache_features: mips-options (preliminary MIPS_CPU_CACHE_CDEX_S flag): 0x000088c40e6d638b icache.flags 0x00000000 dcache.flags 0x00000020
[ 0.153302] Primary instruction cache 32kB, VIPT, 4-way, linesize 32 bytes.
[ 0.153308] Primary data cache 32kB, 4-way, PIPT, no aliases, linesize 32 bytes
[ 0.153319] MIPS secondary cache 256kB, 8-way, linesize 32 bytes.
[ 0.153323] avm_check_scache_features: mips-options: 0x000088c40e6d638b
[ 0.153450] CPU3 revision is: 0001a120 (MIPS interAptiv (multi))
[ 0.181256] avm_register_cpuid: cpu_id=3: LINUX core=1 tc=1
[ 0.181555] Brought up 4 CPUs
[ 0.430211] avm_yield_setup: YIELD_PCMFRAME_ID : id=0x0004000f: cpu=0 tc=4 prio=3 signal=15
[ 0.439144] avm_yield_setup: YIELD_PCMLINK_ID : id=0x0003000c: cpu=0 tc=3 prio=2 signal=12
[ 0.448086] avm_yield_setup: YIELD_MONITOR_IPI0_ID : id=0x0002000e: cpu=0 tc=2 prio=1 signal=14
[ 0.449563] random: fast init done
I think it could be similar to this but I can't see burns or any kind of damage on the board, but I will check again if necessary.
Thanks in advance