Partition size catch 22 w/TM AC1900?

[Hoosier Daddy]

Title is just guessing.

I bought a NIB T-Mobile RT AC1900 after learning about asuswrt-Merlin.

I'm trying to install the latest Merlin firmware (for the AC68U) but keep getting a message saying:

Firmware upgrade unsuccessfully (sic). It may result from incorrect image or error transmission. Please check the version of firmware and try again.
​

Merlin instructions say for this router use Merlin AC68U firmware. BUT I see the following in the wiki installation instructions:

Starting with Asus's 3.0.0.4.380_3000, a new firmware format is used. To flash Asuswrt-Merlin on one of these newer firmwares, you will need 380.61 or newer. ...

The RT-AC68U and RT-AC56U need to be at least on firmware 378.55 (or the last 378.xxx version from Asus) before you can flash 380.xx, due to the partition size change.
​

Is the partition size the issue, and how do I fix that? The router came with 3.0.0.4.376_3199-xxxxxx and reports that it is the latest version from Asus. So, since 376 is less than 378.55 it sounds like partition size is either this issue or another issue I need to address.

And if I need to be on an official Asus version 380.xx or higher and the highest factory version for this model (AC1900) is 376_3199, how do I do that? I don't think (may be wrong) that I can install a newer Asus firmware for an AC68U because before discovering Merlin or buying the router, I read that Asus had changed the 1900 firmware to prevent it from installing any Asus AC68U firmware.

I need help. Arggg

​

 

[skeal]

Title is just guessing.

I bought a NIB T-Mobile RT AC1900 after learning about asuswrt-Merlin.

I'm trying to install the latest Merlin firmware (for the AC68U) but keep getting a message saying:

Firmware upgrade unsuccessfully (sic). It may result from incorrect image or error transmission. Please check the version of firmware and try again.
​

Merlin instructions say for this router use Merlin AC68U firmware. BUT I see the following in the wiki installation instructions:

Starting with Asus's 3.0.0.4.380_3000, a new firmware format is used. To flash Asuswrt-Merlin on one of these newer firmwares, you will need 380.61 or newer. ...

The RT-AC68U and RT-AC56U need to be at least on firmware 378.55 (or the last 378.xxx version from Asus) before you can flash 380.xx, due to the partition size change.
​

Is the partition size the issue, and how do I fix that? The router came with 3.0.0.4.376_3199-xxxxxx and reports that it is the latest version from Asus. So, since 376 is less than 378.55 it sounds like partition size is either this issue or another issue I need to address.

And if I need to be on an official Asus version 380.xx or higher and the highest factory version for this model (AC1900) is 376_3199, how do I do that? I don't think (may be wrong) that I can install a newer Asus firmware for an AC68U because before discovering Merlin or buying the router, I read that Asus had changed the 1900 firmware to prevent it from installing any Asus AC68U firmware.

I need help. Arggg

​

The T-Mobile version is not supported nor has it ever been. Putting Asuswrt-merlin on this device is illegal. Read these links carefully.
https://www.snbforums.com/threads/a...d-forks-on-non-asus-devices-is-illegal.44636/
https://www.snbforums.com/threads/faq-read-me-first-before-posting-a-question.47153/

 

[ColinTaylor]

https://www.snbforums.com/threads/snbforums-policy-on-asus-tm-ac1900-conversion-discussion.46018/