ONT-S508CL-8S stone dead

Hardware Questions and Recommendations
1

hi
Any one possession ONT-S508CL-8S firmware with bootloader could not find anywhere.
thx for advance.

2

most devices don't ship the boot loader with the firmware updates, you most likely need a firmware dump.

3

aha okey so need new device to extract that sadly.

4

that, or hope someone at the forum can help you out.

5

http://mork.no/~bjorn/xx/ONT-S508CL-8S-mtd0.gz

This is the "u-boot" partition from my ONT-S508CL-8S, based on this layout (which is different from what flshow will tell you!!):

[    3.801898] Creating 4 MTD partitions on "spi0.0":
[    3.865032] 0x000000000000-0x000000100000 : "u-boot"
[    3.934075] 0x000000100000-0x000000130000 : "board-info"
[    4.006811] 0x000000130000-0x000000200000 : "syslog"
[    4.074855] 0x000000200000-0x000002000000 : "firmware"

Hope you have a copy of the "board-info" partition with serial number etc. I don't want to share that...

4 Likes
6

okey thx very much for that i try to flash it. your are to best.

7

Hi,

Thanks again for sharing the boot image earlier — I really appreciate it.

I’m currently debugging some RTL930x PCS / SERDES issues under OpenWrt on this device. To do proper analysis and recovery testing, I wanted to ask one thing:

Would it be possible to share a full flash image (or advise how to create one) where
MAC addresses / serial numbers / license data are removed or anonymized?

I’m not looking for vendor support or anything production-related — this would be strictly for
debugging, comparison, and recovery testing. The original vendor firmware works correctly on all ports, so I’m trying to understand the differences at DTS / driver level.

If a full image can’t be shared, even guidance on which regions should be excluded
(board-info, MAC, calibration offsets, etc.) would already help a lot.

Thanks again for your time and help.