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Arris TG2492 (VM Super hub 3)
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I've been doing some research on this cable modem in the hope of getting access to the firmware but I've hit a road block so hoping someone here has the knowledge/skills to crack this open. 

A decent breakdown of the modem can be found here which includes a mostly complete list of components and UART output: 
https://www.mobile-computer-repairs.co.u...ris-TG2492 

Having also checked myself I can confirm the console is locked, there's seemingly no way to stop or interrupt the boot script and no input is accepted. 

I then proceeded to desolder the nand and attempted to dump it. Unfortunately it would appear the nand is encrypted but for those interested you can get it here:
https://mega.nz/#!qZ5nETaI!QqGD5XRCeLUAtiDTqh3xJ17IwlnWcystaSf--kC4vy8

At this point I'm not sure how to proceed, with the nand being encrypted I tried to get some information on the eMMC chip Phison PS8211-0 but there doesn't appear to be any public information or data sheet. Does anyone know if this is what handles the nand encryption or is it being done at a bootloader level?

The only interesting information I could find was this anonymous pastebin which would appear to be from a fritzbox modem 

https://pastebin.com/GZDdJRPs

Code:
4    /etc/mmc/PS8211/phison_fw/PS8211_SLC_BFW_A.BIN
4    /etc/mmc/PS8211/phison_fw/PS8211_SLC_BFW_B.BIN
4    /etc/mmc/PS8211/phison_fw/phison.cfg
4    /etc/mmc/PS8211/read_image_version.sh
4    /etc/mmc/PS8211/read_mmc_fw_version.sh
4    /etc/mmc/PS8211/upgrade_mmc_fw.sh

It doesn't say what fritzbox modem this came from but obtaining a copy of the eMMC firmware would likely be useful in decrypting the nand.
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Messages In This Thread
Arris TG2492 (VM Super hub 3) - by emantec - 07-09-2018, 08:32 PM
RE: Arris TG2492 (VM Super hub 3) - by ricktendo - 08-09-2018, 02:19 PM
RE: Arris TG2492 (VM Super hub 3) - by emantec - 08-09-2018, 02:21 PM
RE: Arris TG2492 (VM Super hub 3) - by drewmerc - 09-09-2018, 05:59 PM
RE: Arris TG2492 (VM Super hub 3) - by emantec - 09-09-2018, 06:10 PM
RE: Arris TG2492 (VM Super hub 3) - by ricktendo - 09-09-2018, 08:20 PM
RE: Arris TG2492 (VM Super hub 3) - by emantec - 09-09-2018, 08:33 PM
RE: Arris TG2492 (VM Super hub 3) - by emantec - 02-11-2018, 11:59 AM
RE: Arris TG2492 (VM Super hub 3) - by andy m - 03-11-2018, 09:27 AM
RE: Arris TG2492 (VM Super hub 3) - by vmu19 - 18-01-2019, 10:32 AM
RE: Arris TG2492 (VM Super hub 3) - by andy m - 18-01-2019, 08:28 PM
RE: Arris TG2492 (VM Super hub 3) - by vmu19 - 18-01-2019, 08:41 PM
RE: Arris TG2492 (VM Super hub 3) - by andy m - 19-01-2019, 10:25 AM
RE: Arris TG2492 (VM Super hub 3) - by vmu19 - 19-01-2019, 01:05 PM
RE: Arris TG2492 (VM Super hub 3) - by andy m - 19-01-2019, 06:30 PM
RE: Arris TG2492 (VM Super hub 3) - by vmu19 - 19-01-2019, 07:46 PM
RE: Arris TG2492 (VM Super hub 3) - by eltremendo - 20-01-2019, 03:20 AM
RE: Arris TG2492 (VM Super hub 3) - by vmu19 - 20-01-2019, 10:12 AM
RE: Arris TG2492 (VM Super hub 3) - by eltremendo - 20-01-2019, 03:48 PM
RE: Arris TG2492 (VM Super hub 3) - by vmu19 - 20-01-2019, 04:50 PM
RE: Arris TG2492 (VM Super hub 3) - by danman - 25-02-2019, 10:49 AM
RE: Arris TG2492 (VM Super hub 3) - by elbarto - 26-03-2019, 12:47 AM
RE: Arris TG2492 (VM Super hub 3) - by danman - 25-02-2019, 10:53 AM
RE: Arris TG2492 (VM Super hub 3) - by danman - 25-02-2019, 11:46 AM
RE: Arris TG2492 (VM Super hub 3) - by danman - 02-03-2019, 12:06 PM
RE: Arris TG2492 (VM Super hub 3) - by eltremendo - 02-03-2019, 02:10 PM
RE: Arris TG2492 (VM Super hub 3) - by danman - 02-03-2019, 05:24 PM
RE: Arris TG2492 (VM Super hub 3) - by guti - 19-04-2019, 09:25 PM
RE: Arris TG2492 (VM Super hub 3) - by eltremendo - 28-04-2019, 10:55 PM
RE: Arris TG2492 (VM Super hub 3) - by eltremendo - 02-03-2019, 11:29 PM
RE: Arris TG2492 (VM Super hub 3) - by danman - 03-03-2019, 12:00 AM
RE: Arris TG2492 (VM Super hub 3) - by eltremendo - 03-03-2019, 12:02 AM
RE: Arris TG2492 (VM Super hub 3) - by danman - 03-03-2019, 12:09 AM
RE: Arris TG2492 (VM Super hub 3) - by eltremendo - 03-03-2019, 12:27 AM
RE: Arris TG2492 (VM Super hub 3) - by eltremendo - 03-03-2019, 12:08 AM
RE: Arris TG2492 (VM Super hub 3) - by eltremendo - 03-03-2019, 12:32 AM
RE: Arris TG2492 (VM Super hub 3) - by danman - 03-03-2019, 12:37 AM
RE: Arris TG2492 (VM Super hub 3) - by eltremendo - 03-03-2019, 12:44 AM
RE: Arris TG2492 (VM Super hub 3) - by danman - 03-03-2019, 12:47 AM
RE: Arris TG2492 (VM Super hub 3) - by eltremendo - 03-03-2019, 12:39 AM
RE: Arris TG2492 (VM Super hub 3) - by danman - 03-03-2019, 12:43 AM
RE: Arris TG2492 (VM Super hub 3) - by eltremendo - 03-03-2019, 12:49 AM
RE: Arris TG2492 (VM Super hub 3) - by danman - 03-03-2019, 01:06 AM
RE: Arris TG2492 (VM Super hub 3) - by eltremendo - 03-03-2019, 01:09 AM
RE: Arris TG2492 (VM Super hub 3) - by danman - 03-03-2019, 01:13 AM
RE: Arris TG2492 (VM Super hub 3) - by eltremendo - 03-03-2019, 01:22 AM
RE: Arris TG2492 (VM Super hub 3) - by eltremendo - 03-03-2019, 10:44 PM
RE: Arris TG2492 (VM Super hub 3) - by danman - 03-03-2019, 11:00 PM
RE: Arris TG2492 (VM Super hub 3) - by eltremendo - 03-03-2019, 11:06 PM
RE: Arris TG2492 (VM Super hub 3) - by eltremendo - 06-03-2019, 05:42 AM
RE: Arris TG2492 (VM Super hub 3) - by danman - 06-03-2019, 07:10 PM
RE: Arris TG2492 (VM Super hub 3) - by eltremendo - 16-03-2019, 07:24 PM
RE: Arris TG2492 (VM Super hub 3) - by 0xff - 03-03-2019, 03:39 AM
RE: Arris TG2492 (VM Super hub 3) - by eltremendo - 03-03-2019, 04:06 AM
RE: Arris TG2492 (VM Super hub 3) - by 0xff - 03-03-2019, 04:19 AM
RE: Arris TG2492 (VM Super hub 3) - by emantec - 09-04-2019, 04:30 PM
RE: Arris TG2492 (VM Super hub 3) - by ricktendo - 12-04-2019, 06:11 AM
RE: Arris TG2492 (VM Super hub 3) - by emantec - 12-04-2019, 07:27 PM
RE: Arris TG2492 (VM Super hub 3) - by ricktendo - 14-04-2019, 06:25 PM
RE: Arris TG2492 (VM Super hub 3) - by andy m - 14-04-2019, 07:12 PM
RE: Arris TG2492 (VM Super hub 3) - by ricktendo - 14-04-2019, 08:41 PM
RE: Arris TG2492 (VM Super hub 3) - by eltremendo - 16-04-2019, 09:33 AM
RE: Arris TG2492 (VM Super hub 3) - by emantec - 16-04-2019, 12:07 PM
RE: Arris TG2492 (VM Super hub 3) - by elbarto - 21-04-2019, 03:43 PM
RE: Arris TG2492 (VM Super hub 3) - by emantec - 16-04-2019, 09:52 PM
RE: Arris TG2492 (VM Super hub 3) - by elbarto - 17-04-2019, 04:43 PM
RE: Arris TG2492 (VM Super hub 3) - by emantec - 19-04-2019, 10:32 AM
RE: Arris TG2492 (VM Super hub 3) - by emantec - 21-04-2019, 12:59 PM
RE: Arris TG2492 (VM Super hub 3) - by emantec - 22-04-2019, 08:08 PM
RE: Arris TG2492 (VM Super hub 3) - by eltremendo - 29-04-2019, 02:37 AM
RE: Arris TG2492 (VM Super hub 3) - by eltremendo - 30-06-2019, 09:59 PM
RE: Arris TG2492 (VM Super hub 3) - by ricktendo - 29-04-2019, 06:23 AM
RE: Arris TG2492 (VM Super hub 3) - by eltremendo - 29-04-2019, 06:29 AM
RE: Arris TG2492 (VM Super hub 3) - by eltremendo - 29-04-2019, 10:22 PM
RE: Arris TG2492 (VM Super hub 3) - by neo_ - 14-06-2019, 12:37 AM
RE: Arris TG2492 (VM Super hub 3) - by ricktendo - 14-06-2019, 02:03 AM
RE: Arris TG2492 (VM Super hub 3) - by eltremendo - 02-07-2019, 06:36 AM
RE: Arris TG2492 (VM Super hub 3) - by danman - 15-07-2019, 03:14 PM
RE: Arris TG2492 (VM Super hub 3) - by eltremendo - 16-07-2019, 05:04 AM
RE: Arris TG2492 (VM Super hub 3) - by danman - 16-07-2019, 06:43 AM
RE: Arris TG2492 (VM Super hub 3) - by smoker - 07-08-2019, 10:18 PM
RE: Arris TG2492 (VM Super hub 3) - by andy m - 08-08-2019, 09:56 AM
RE: Arris TG2492 (VM Super hub 3) - by sb5101e - 04-01-2020, 01:07 PM
RE: Arris TG2492 (VM Super hub 3) - by jorgitolmj - 06-04-2021, 08:42 AM
RE: Arris TG2492 (VM Super hub 3) - by alvaro1970 - 26-01-2020, 11:04 PM
RE: Arris TG2492 (VM Super hub 3) - by kapec - 10-04-2020, 09:01 AM
RE: Arris TG2492 (VM Super hub 3) - by travis1999 - 05-04-2021, 12:15 AM
RE: Arris TG2492 (VM Super hub 3) - by alexlobo - 15-07-2021, 04:57 AM
RE: Arris TG2492 (VM Super hub 3) - by infinity08 - 26-07-2021, 06:02 AM

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