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Is it possible to restore bricked V-SOL XPON V2801F #304
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only can see is via TTL UART |
Does this sfp has some UART pins on the pcb? |
the SFP pin doesn't, need to open it and pin on the SoC pinout |
I also have a "bricked" CarlitosPro stick which is the same device. Does not autoneg with any device I have. |
@vbaskoff did you fix your dongle? got similar issue with fd511gx, but wait for needle pad @crrodriguez if you have 3d printer you can help yourself |
got same issue as @vbaskoff
connect with uart sucessfuly, but can't do backup via uart @Anime4000 any ideas? |
did it boot successfully or stuck at recovery? |
@Anime4000 successfull |
try enter this, see EEPROM is fixed:
|
Also the firmware seems to support TFTP flash/boot but I couldn't make it work. there was no TFTP client traffic from the device een when all addresses are correct. I guess this is because the device actually boots but does not work as opposed to be bricked and the fallback does not trigger. |
@Anime4000 not looks like it helps. same eeprom in mikrotik monitoring.
Full log of boot:
after busybox logged in with adminisp/adminisp |
UPD: calculate and set VS_AUTH_KEY + switch LAN_SDS_MODE from 1 to 4 - didn't help |
btw @Anime4000, this happened after this issue switch firmware to second partition with this guide- back to default dongle firmware and dongle back to work eeprom pretty same as before with bad checksum
next question: is some way to copy current FW from partition 1 to 0? |
This issue was moved to a discussion.
You can continue the conversation there. Go to discussion →
Hi Folks,
Without any reason sfp onu (V-SOL XPON V2801F) stopped to be reachable via IP, no mac address appeared behind sfp port in arp table as well.
RouterOS 'see' physical presence of the module and mark port as running.
When touching sfp module case it is 'hot' as usual...
Any way to bring it back to life?
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