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Trying to unbrick my APX120

I am using the instructions to unbrick my APX120 from this post, but I have run into issues below:

community.sophos.com/.../unbrick-apx120-break-bootdelay-0-recover-apx120

I can't seem to save the environment variables. When I run the "saveenv"

It says:

Saving Environment to NAND...
Erasing Nand...
Attempt to erase non page aligned data



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  • I have exactly the same error

    (APX120) # saveenv
    Saving Environment to NAND...
    Erasing Nand...
    Attempt to erase non page aligned data
    

    This is the system initialization prompts (short U26 pin 8)

    U-Boot 2012.07 [Chaos Calmer unknown,unknown] (Nov 02 2018 - 08:13:09)
    
    smem ram ptable found: ver: 1 len: 3
    DRAM:  256 MiB
    @machid : 0x8010100
    NAND:  SF NAND unsupported id:0:0:0:0SF NAND unsupported id:0:0:0:0SF: Unsupported manufacturer 00
    spi_nand: Id could not be mapped
    SF NAND unsupported id:0:0:0:0SF NAND unsupported id:0:0:0:0SF: Unsupported manufacturer 00
    ipq_spi: SPI Flash not found (bus/cs/speed/mode) = (0/0/48000000/0)
    0 MiB
    MMC:
    *** Warning - readenv() failed, using default environment
    
    In:    serial
    Out:   serial
    Err:   serial
    machid: 8010100
    flash_type: 0
    Hit any key to stop autoboot:  0
    No such device
    nand - NAND sub-system
    
    
    (APX120) # printenv
    baudrate=115200
    bootargs=ubi.mtd=rootfs root=mtd:ubi_rootfs rootfstype=squashfs rootwait
    bootcmd=bootipq
    bootdelay=2
    fdt_high=0x87000000
    flash_type=0
    fsbootargs=ubi.mtd=rootfs root=mtd:ubi_rootfs rootfstype=squashfs
    ipaddr=192.168.1.11
    machid=8010100
    stderr=serial
    stdin=serial
    stdout=serial
    

    Bricked version of system initialization:

    Format: Log Type - Time(microsec) - Message - Optional Info
    Log Type: B - Since Boot(Power On Reset),  D - Delta,  S - Statistic
    S - QC_IMAGE_VERSION_STRING=BOOT.BF.3.1.1-00120
    S - IMAGE_VARIANT_STRING=DAABANAZA
    S - OEM_IMAGE_VERSION_STRING=CRM
    S - Boot Config, 0x00000021
    S - Reset status Config, 0x00000010
    S - Core 0 Frequency, 0 MHz
    B -       261 - PBL, Start
    B -      1338 - bootable_media_detect_entry, Start
    B -      1678 - bootable_media_detect_success, Start
    B -      1692 - elf_loader_entry, Start
    B -      5068 - auth_hash_seg_entry, Start
    B -      7210 - auth_hash_seg_exit, Start
    B -    577089 - elf_segs_hash_verify_entry, Start
    B -    694418 - PBL, End
    B -    694442 - SBL1, Start
    B -    785453 - pm_device_init, Start
    D -         7 - pm_device_init, Delta
    B -    786898 - boot_flash_init, Start
    D -     52811 - boot_flash_init, Delta
    B -    843849 - boot_config_data_table_init, Start
    D -      3838 - boot_config_data_table_init, Delta - (419 Bytes)
    B -    851055 - clock_init, Start
    D -      7569 - clock_init, Delta
    B -    863098 - CDT version:2,Platform ID:8,Major ID:1,Minor ID:1,Subtype:0
    B -    866511 - sbl1_ddr_set_params, Start
    B -    871608 - cpr_init, Start
    D -         2 - cpr_init, Delta
    B -    875989 - Pre_DDR_clock_init, Start
    D -         4 - Pre_DDR_clock_init, Delta
    D -     13174 - sbl1_ddr_set_params, Delta
    B -    889728 - pm_driver_init, Start
    D -         2 - pm_driver_init, Delta
    B -    959701 - sbl1_wait_for_ddr_training, Start
    D -        27 - sbl1_wait_for_ddr_training, Delta
    B -    975303 - Image Load, Start
    D -    152200 - QSEE Image Loaded, Delta - (297752 Bytes)
    B -   1127929 - Image Load, Start
    D -      1444 - SEC Image Loaded, Delta - (2048 Bytes)
    B -   1138329 - Image Load, Start
    D -    223905 - APPSBL Image Loaded, Delta - (458523 Bytes)
    B -   1362631 - QSEE Execution, Start
    D -        60 - QSEE Execution, Delta
    B -   1368853 - SBL1, End
    D -    676517 - SBL1, Delta
    S - Flash Throughput, 2010 KB/s  (758742 Bytes,  377357 us)
    S - DDR Frequency, 537 MHz
    
    
    U-Boot 2012.07 [Chaos Calmer unknown,unknown] (Nov 02 2018 - 08:13:09)
    
    smem ram ptable found: ver: 1 len: 3
    DRAM:  256 MiB
    @machid : 0x8010100
    NAND:  spi_nand: spi_nand_flash_probe SF NAND ID 0:ef:ab:21
    SF: Detected W25M02GV with page size 2 KiB, total 256 MiB
    SF: Detected MX25L1605D with page size 4 KiB, total 2 MiB
    ipq_spi: page_size: 0x100, sector_size: 0x1000, size: 0x200000
    258 MiB
    MMC:
    In:    serial
    Out:   serial
    Err:   serial
    machid: 8010100
    flash_type: 0
    Hit any key to stop autoboot:  0
    Creating 1 MTD partitions on "nand1":
    0x000000000000-0x000010000000 : "mtd=0"
    UBI: attaching mtd2 to ubi0
    UBI: physical eraseblock size:   131072 bytes (128 KiB)
    UBI: logical eraseblock size:    126976 bytes
    UBI: smallest flash I/O unit:    2048
    UBI: VID header offset:          2048 (aligned 2048)
    UBI: data offset:                4096
    UBI error: ubi_read_volume_table: the layout volume was not found
    UBI error: ubi_init: cannot attach mtd2
    UBI error: ubi_init: UBI error: cannot initialize UBI, error -22
    UBI init error 22
    Error, no UBI device/partition selected!
    Wrong Image Format for bootm command
    ERROR: can't get kernel image!
    Creating 1 MTD partitions on "nand1":
    0x000000000000-0x000010000000 : "mtd=0"
    UBI: attaching mtd2 to ubi0
    UBI: physical eraseblock size:   131072 bytes (128 KiB)
    UBI: logical eraseblock size:    126976 bytes
    UBI: smallest flash I/O unit:    2048
    UBI: VID header offset:          2048 (aligned 2048)
    UBI: data offset:                4096
    UBI error: ubi_read_volume_table: the layout volume was not found
    UBI error: ubi_init: cannot attach mtd2
    UBI error: ubi_init: UBI error: cannot initialize UBI, error -22
    UBI init error 22
    Error, no UBI device/partition selected!
    Wrong Image Format for bootm command
    ERROR: can't get kernel image!
    resetting ...

  • You need to retry to break autoboot.
    sometimes you need a few attemps.

    i prefer to read the nor with in circuit flash.

    if you can save the environment you must rebuild all env vars before loading the image file.

  • I second this. I had to retry it again a few times until I was able to save the environment variables. 

  • Tried four times, and finally!

    But I got this:

    Starting kernel ...
    
    Press the [f] key and hit [enter] to enter failsafe mode
    Press the [1], [2], [3] or [4] key and hit [enter] to select the debug level
    f
    - failsafe -
    /etc/preinit: line 1: telnetd: not found
    (none) login: Please reboot system when done with failsafe network logins
    

    and then

    Starting kernel ...
    
    Press the [f] key and hit [enter] to enter failsafe mode
    Press the [1], [2], [3] or [4] key and hit [enter] to select the debug level
    fPlease press Enter to activate this console.
    
    Warning: Bad CRC, using default environment
    (none) login: Booting. (Version: 11.0.021-1)
    Checking The AP model
    Starting network configuration for ethernet interface over DHCP.
    Cloud certificate validation pending.
    dnsserver entries are missing
    [
    

    This model (APX120) really needs more QA!

  • There is no failsafe in the new firmware images.

    you need to enter uboot cli and erase the flash, load an old kernel with tftp. Boot into failsafe and update with shell script.

  • Could you share a link to an old kernel image? I got the image from my XG firewall and it seems to be the latest version.

    Thanks!

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