Can't update RT-AC68U firmware

[fluikes69]

Please help, my RT-AC68U cannot be updated for a long time, the last fw is 386.7.
thx

 

[L&LD]

Welcome to the forums @fluikes69.

Issue Updating Merlin Firmware to 386.12_2 on my ASUS RT-AC66U B1

ello forum members, I'm currently facing an issue while attempting to update my ASUS RT-AC66U B1 router with Merlin firmware version 386.12_2. It seems like the update isn't going smoothly, and I could use some assistance and guidance on how to resolve this. Here's what I've done so far: I...

www.snbforums.com

 

[bennor]

Please help, my RT-AC68U cannot be updated for a long time, the last fw is 386.7.

Do you have a T-Mobile branded (TM-AC1900) router? And if so was it properly jailbroken including the MTD5 partition fix? If not properly jailbroken one cannot flash later versions of Asus or Asus-Merlin firmware to the TM-AC1900 router. Example method of jailbreaking that specific router:
Flashing TM-AC1900 to RT-AC68U/P

Code for fixing MTD5 partition so you can update to latest firmware:
(this is entered in Putty after enabling SSH on the router)

cat /dev/mtd5 > /jffs/mtd5_backup.bin
mkdir /tmp/asus_jffs
mount -t jffs2 /dev/mtdblock5 /tmp/asus_jffs
rm -rf /tmp/asus_jffs/*
sync && umount /tmp/asus_jffs
rm -rf /jffs/.sys/RT-AC68U
nvram unset fw_check && nvram commit && reboot

Note: One proceeds at their own risk when jailbreaking the TM-AC1900 router or applying the MTD5 partition fix.

 

[fluikes69]

Welcome to the forums @fluikes69.

Issue Updating Merlin Firmware to 386.12_2 on my ASUS RT-AC66U B1

ello forum members, I'm currently facing an issue while attempting to update my ASUS RT-AC66U B1 router with Merlin firmware version 386.12_2. It seems like the update isn't going smoothly, and I could use some assistance and guidance on how to resolve this. Here's what I've done so far: I...

www.snbforums.com

Unfortunately it didn't help

 

[ColinTaylor]

Unfortunately it didn't help

As per the previous post, is your router a T-Mobile branded (TM-AC1900) model?

 

[fluikes69]

No, it's a purchased ASUS.

 

[ColinTaylor]

Please confirm that you have downloaded and unzippped this file. And that you are trying to flash RT-AC68U_386.12_4.trx.

If you haven't already done so try removing any USB devices from the router and performing a hard factory reset.

[Wireless Router] ASUS router Hard Factory Reset - Method 1 | Official Support | ASUS Global

Then minimally configure the router just enough so that you can navigate to the firmware update page. Now try the update again.