Thanks for the video. I was in the same situation. At work I managed an ASA 5506. After news of the clock issue, I had it replaced with a V04 revision in 2017-2018 by Cisco. In 2020 we switched to another vendor firewall, but I took the 5506 home for a homelab. Fast forward to early 2021 and it suddenly failed. I could not fathom how it could be the clock issue as it had already been replaced. The ASA has sat in a box since then, and I replaced it with a pfSense 6100. I am slowly getting in to electronics, so once I get more experience with soldering I may give this a try.
Wow. Great timing of the upload. I was testing a couple ASAs this morning, got the same error and researched it. Will try this solution and let you know how it goes. I'm a beginner at soldering and haven't done anything this small, so fingers crossed.
@@EricMarsi I didn't have the small resistor, so I soldered two scrap wires to the PCB and a normal sized resistor in the middle with heat shrink tubing. Haven't tried flux before. The heat sink was really tricky to mount and not break or touch the wire. I used some electrical insulating tape on the heat sink to make sure it didn't touch. Your solution is definetly more robust, but this is only to boot and clear the config before its handed over. Thanks for the video. Helped a lot.
Good to know this is easily fixed - I have one sat here that failed recently - a V02 release. However... I have removed all the screws from the case and I still can't get the thing apart. There doesn't seem to be any actual teardown vids for this model on UA-cam. A more in-depth strip-down and overview would be greatly appreciated.
I am in the same boat today - my ASA5506-X is dead in the same manner, V02 too. After unscrewing, use flat screwdriver and insert it into four recesses near the side walls, gradually levering them out. Nothing particular holds them, just too tight to be disassembled by fingers.
@@MrSysadmin1975 Agreed. I just picked one of these things up while thrifting, for 9$. Canadian. I don't even really know it does, but it was the right shape and size for 9$. Indeed just gently prying under the four corners with a flat blade screwdriver or pocket knife, gently, one little nudge at a time in each corner, and it will suddenly pop. There are EMI gaskets all around which probably make for a tight fit.
The serial number on the chassis it's a chassis serial number and the one displayed at boot it's the motherboard serial. They are distinct. Turn it OFF, power back on and press ESC to halt it in ROMMON, then "show info" at the rommon prompt. You will have Serial Number - PCA and Serial Number - Chassis. If these two correspond to reality, it's OK. Mine does not boot fully because of some accelerator boot error 4 and that's why I checked the serials from rommon. But since the rommon it's like a BIOS I guess it's the best place to check. Also, can you put a video showing the entire boot messages, from initial powerup to final boot into the main O/S. I am curious about the messages right after discovering the network adapters, when it begins to load the accelerator bin file. Mine fails with accelerator boot err accelerator boot failed status 4...
You can also do a « show inventory » after boot to see the HW serial number. It should also report HW revision. This is worrisome to me, as I have a V04 that was actually replaced by Cisco under the repair program…
❤❤it really works. You save my life
thanks for your time in making this vid.
Thanks for the video. I was in the same situation. At work I managed an ASA 5506. After news of the clock issue, I had it replaced with a V04 revision in 2017-2018 by Cisco. In 2020 we switched to another vendor firewall, but I took the 5506 home for a homelab. Fast forward to early 2021 and it suddenly failed. I could not fathom how it could be the clock issue as it had already been replaced. The ASA has sat in a box since then, and I replaced it with a pfSense 6100. I am slowly getting in to electronics, so once I get more experience with soldering I may give this a try.
Wow. Great timing of the upload. I was testing a couple ASAs this morning, got the same error and researched it. Will try this solution and let you know how it goes. I'm a beginner at soldering and haven't done anything this small, so fingers crossed.
This isn't for the beginner as the 0402"s are super tiny so be super careful. Use a ton of Flux! Hope I was able to help :)
@@EricMarsi I didn't have the small resistor, so I soldered two scrap wires to the PCB and a normal sized resistor in the middle with heat shrink tubing. Haven't tried flux before.
The heat sink was really tricky to mount and not break or touch the wire. I used some electrical insulating tape on the heat sink to make sure it didn't touch.
Your solution is definetly more robust, but this is only to boot and clear the config before its handed over. Thanks for the video. Helped a lot.
Nice fix Eric! Curious to see how long it lasts.
Good to know this is easily fixed - I have one sat here that failed recently - a V02 release. However... I have removed all the screws from the case and I still can't get the thing apart. There doesn't seem to be any actual teardown vids for this model on UA-cam. A more in-depth strip-down and overview would be greatly appreciated.
I am in the same boat today - my ASA5506-X is dead in the same manner, V02 too. After unscrewing, use flat screwdriver and insert it into four recesses near the side walls, gradually levering them out. Nothing particular holds them, just too tight to be disassembled by fingers.
@@MrSysadmin1975 Agreed. I just picked one of these things up while thrifting, for 9$. Canadian. I don't even really know it does, but it was the right shape and size for 9$. Indeed just gently prying under the four corners with a flat blade screwdriver or pocket knife, gently, one little nudge at a time in each corner, and it will suddenly pop. There are EMI gaskets all around which probably make for a tight fit.
how the heck did you solder that tiny thing. need a very sharp tip, and what degree do you recommend on the solder for something so tiny
And how to fix Cisco ASA 5516-x
hi Eric how about the Field Notice: FN - 64253 - ISR4331, ISR4321, ISR4351 - Clock Signal Component Failure! Any Fix
Can I put a 1 k ohm ?
The serial number on the chassis it's a chassis serial number and the one displayed at boot it's the motherboard serial. They are distinct. Turn it OFF, power back on and press ESC to halt it in ROMMON, then "show info" at the rommon prompt. You will have Serial Number - PCA and Serial Number - Chassis. If these two correspond to reality, it's OK. Mine does not boot fully because of some accelerator boot error 4 and that's why I checked the serials from rommon. But since the rommon it's like a BIOS I guess it's the best place to check.
Also, can you put a video showing the entire boot messages, from initial powerup to final boot into the main O/S. I am curious about the messages right after discovering the network adapters, when it begins to load the accelerator bin file. Mine fails with accelerator boot err accelerator boot failed status 4...
You can also do a « show inventory » after boot to see the HW serial number. It should also report HW revision.
This is worrisome to me, as I have a V04 that was actually replaced by Cisco under the repair program…
Fantastic. Thank you so much. (R=470-500 Ohm)