Clock-Signal Repair Pictures ISR4300, ASA, ISR4400

[Bernhard Roth]

Hello!

We have many devices affected by the clock-signal issues.

Cisco does replace the units with repaired/fixed ones.

I have received some ISR4321 routers with the fix applied (pictures attached).

The Cisco provided fix is of - well - mediocre quality (loose solder joints etc..) but works.

I am an EE engineer and am able to fix other routers of my customers as well (attached a picture of one of my fixes).

Spot the difference :)

Is there anyone which has received fixed ASA5506, ASA5508 and ISR4331 routers?

Please post pictures of your fix (hi-res if possible)

I ask because I would like to fix them as well (some of my customers) and avoid configuration, license etc. migration.

I am aware that I might void Ciscos warranty by this act of evil :)

Best regards,

Bernhard

[shaw.chris]

I ended up soldering a 150 ohm 0603 resistor to my 5506, I can now get into the rommon but it will not boot from the image (either flash or usb) and displays the error "No kernel found to launch."

It is also showing some strange messages on boot where it doesn't seem to be able to read details from the motherboard, I guess this is linked to the Kernel error:

Failed to read macaddress from backplane
Error: platform_required_check_var: Illegal MAC address.
MAC address is not set (ff:ff:ff:ff:ff:ff).

Cisco Systems ROMMON, Version 1.1.15, RELEASE SOFTWARE
Copyright (c) 1994-2019 by Cisco Systems, Inc.
Compiled Sat 03/30/2019 7:00:46.51 by wchen64

DIMM Slot 0 : Present
Product Identifier : UNKNOWN
Serial Number - PCA : UNKNOWN
Serial Number - Chassis : UNKNOWN
Version Identifier : UNKNOWN

[renoufi]

I had a similar issue with a 5508x. Went to a lot of trouble to get a the resistor put in but it wouldn't boot. Was very disappointed. Then I removed the CMOS battery, shorted out the pins.....and presto.....working 5508......

[shaw.chris]

Thanks, what pins did you short?

[mbazelenik]

Same here! My ASA 5506-X also died, all the lights went on... As described above, I opened the chassie, removed the cooling housing from the proc and then my friend solderd a 150 Ohm SMD resistor as mentioned and expained in previous posts and....

WOULA It also worked for me!

I would make a foto of the soldered element but it's so small that it has no point to do so... But I can definitely confirm that this aproach on ASA 5506-x works!

Regards Andrej  

[InfoServiceBelgium]

With the help of this topic I was able to repair my ASA5506. Status led was flashing amber before it stopped working and console port was also not giving any output.

Thanks

[brendanjcrlsn]

What adhesive did you use to hold down the resistor?

[Bernhard Roth]

If you want to make it 100% properly you can use SMT red glue

Otherwise some special pcb grade silicone or kapton tape will do the job as well.

[digitalfox]

My asa5506 was repaired by the original factory with a 150 ohm resistor. It still broke yesterday, amber status flash of death.
If you do not change to a new version of the cpu, the original factory repair can only be used for extended use without solving the problem.

Failure process:
1. Suddenly unable to work last night, CLI displays as attachments
2. Can not start after power off, it should be that the CPU is damaged

Rom image verified correctly

Cisco Systems ROMMON, Version 1.1.18, RELEASE SOFTWARE
Copyright (c) 1994-2020 by Cisco Systems, Inc.
Compiled Tue 09/15/2020 20:35:13.52 by wchen64

%ERROR - Failed to read the SPD. 0
%ERROR - Failed to read the SPD. 0

esg_dash_i2c_op_done() - ERROR encountered: stat_reg(0x000000F0), I2C_STAT_MASK_ERROR(00EE)
Num: 0000, Addr: 0050, Data FIFO OverFlow
Num: 0000, Addr: 0050, Data FIFO UnderFlow
Num: 0000, Addr: 0050, Rcvd NACK from I2C slave
Num: 0000, Addr: 0050, I2C Master Busy

%ERROR - Read failure - Device @ 0x50, offset 0x00 on I2C bus 0x00
Current image running: *Upgrade in progress* Boot ROM0
Last reset cause: PowerOn
Last reset cause: LocalSoft
Last reset cause: RP-Reset
Last reset cause: BootRomUpgrade
Last reset cause: BootRomUpgradeFail
Last reset cause: Watchdog/PCH
Last reset cause: Manual
Last reset cause: Thermal Trip
Last reset cause: Unrecoverable Error
Last reset cause: ResetRequest
Last reset cause: PowerCycleRequest
Last reset cause: HardwareAnchorFail
Last reset cause: StuckInSleep
Last reset cause: BootTimerFail

esg_dash_i2c_op_poll() - Num: 0000, Addr: 0050, I2C Master Busy - aborting!

%ERROR - Read failure - Device @ 0x50, offset 0x00 on I2C bus 0x00DIMM Slot 0 : Present
DIMM Slot 1 : Absent
%WARNING% - Missing DIMM in slot.
%WARNING% - Please correct the memory issue to assure best performance.

!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!! WARNING: The Golden FPGA image has security vulnerability. !!
!! Please upgrade Golden FPGA image using asa5500-firmware-1115.SPA !!
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Platform UNKNOWN with 4096 Mbytes of main memory

esg_dash_i2c_op_done() - ERROR encountered: stat_reg(0x000000F0), I2C_STAT_MASK_ERROR(00EE)
Num: 0000, Addr: 0050, Data FIFO OverFlow
Num: 0000, Addr: 0050, Data FIFO UnderFlow
Num: 0000, Addr: 0050, Rcvd NACK from I2C slave
Num: 0000, Addr: 0050, I2C Master Busy

%ERROR - Read failure - Device @ 0x50, offset 0x00 on I2C bus 0x00Error: platform_required_check_var: Illegal MAC address.
MAC address is not set (ff:ff:ff:ff:ff:ff).

Use BREAK or ESC to interrupt boot.
Use SPACE to begin boot immediately.

Located '.boot_string' @ cluster 638911.

#
Attempt autoboot: "boot disk0:/asa9-14-1-30-lfbff-k8.SPA"
Located 'asa9-14-1-30-lfbff-k8.SPA' @ cluster 529665.

[numantsev]

Thanks! I did it, working fine! I used resistor no SMD formfactor.

[digitexz]

Repaired 2 units of 5508 K8: 

 You can found it here under radiator:

 

[GaelP]

Hi,

I've got the same problem on a ISR 4431.

Is there someone already fix it?

Thanks