GL-AR750S Slate seriously

Blobbie01 · 2022-07-27T01:21:50.215Z

Hey

Try flashing the oldest image through uboot:

https://fw.gl-inet.com/firmware/ar750s/release/openwrt-ar750s-3.001.img

After that, flash the latest:

https://fw.gl-inet.com/firmware/ar750s/release/openwrt-ar750s-3.212-0407.img

Let me know how it goes

forrestjr · 2022-07-27T01:34:39.637Z

Tried that earlier. The latest firmware always fails with an error indicating its size is an issue. Get the same result for most of the firmware versions after 3.104.

Is booting into Luci vs Admin Panel configurable somewhere?

Blobbie01 · 2022-07-27T02:01:19.275Z

Should happen automatically.

But since you can access Luci, we’ll use that😄

Go to System/Backup / Flash Firmware & select Flash Firmware.

Select the latest V3 image. If it says that verification check fails, select the force option. Don’t keep settings.

After this is done, you’ll boot into uboot, but Luci etc is completely removed. Now you should be able to flash the latest V3 image again in Uboot.

forrestjr · 2022-07-27T02:17:38.579Z

Thank you for your help…I’m getting an error “The uploaded image file does not contain a supported format. Make sure that you choose the generic image format for your platform.”

I picked the “openwrt-ar750s-3.212-0407.img” file I downloaded earlier.

Ideas?

Blobbie01 · 2022-07-27T02:18:22.234Z

Is this for flashing in Luci or Uboot?

Either way, I believe for Luci you need to use the system upgrade image (the .tar file)

For uboot you need the uboot image (the .img), pretty obvious😄

forrestjr · 2022-07-27T02:30:25.309Z

Same error for both…

Blobbie01 · 2022-07-27T02:32:15.972Z

Hmm that is odd😄

Is there no option to force upgrade?

forrestjr · 2022-07-27T02:40:56.396Z

Nope. Just that one checkbox for saving settings or not.

There is a “perform reset” button under the Restore heading (reset to defaults). Do you think that would do anything productive?

Blobbie01 · 2022-07-27T02:41:28.023Z

Worth a shot I think👍

forrestjr · 2022-07-27T02:42:33.271Z

Well… here goes nuttin

forrestjr · 2022-07-27T02:43:24.067Z

“The system is erasing the configuration partition…”

Blobbie01 · 2022-07-27T02:44:18.863Z

If it doesn’t work, you could try flashing the snapshot through uboot: https://fw.gl-inet.com/firmware/snapshots/20220725/ar750s/openwrt-ar750s-3.215-0725.img

forrestjr · 2022-07-27T02:58:51.932Z

Yeah, I’ve been trying the uboot options…if it doesn’t fail outright, then I get put on the Luci UI on the 192.168.1.1 gateway, not the GL iNet UI via the 192.168.8.1 gateway.

Well…after the reset it lost its config for my network, so I need to get under the desk to wire the router into the back of my pc again…

Blobbie01 · 2022-07-27T03:03:39.652Z

So how exactly did this happen anyway? Did you try to downgrade, or were u using an OpenWRT image, or just a reset that got stuck somehow?

forrestjr · 2022-07-27T03:23:54.349Z

I’m back! And so is the router!

The “reset to defaults” option must have cleared out the junk because I was able to flash a recent firmware via uboot and then regained the GL Admin Portal and gateway IP.

I honestly don’t know when I last used this thing. I must have mucked it up over two years ago and it’s been sitting in my closet ever since. Thanks again for the ideas Bobbie01!

Exile1975 · 2022-07-27T03:24:34.216Z

I think I remember something about needing to upgrade to 3.105 and then being able to upgrade to the newest firmware on this device

Blobbie01 · 2022-07-27T03:26:36.086Z

Awesome, have fun with the device

forrestjr · 2022-07-27T03:28:23.624Z

I am trying one of those paths now, just to see if I can get to a more current version…

cafebug · 2022-08-22T18:08:50.623Z

I have just gone through the whole U-boot flashing fail error procedure, I am now back to the latest beta firmware.

My best smoothly flashing “guide” is as the following

After try&error for couple times, the “best” flashing “path” is as the following:
v3.001(Uboot img) OR v3.104(Uboot img) → v.3.105 (sysupgrade tar through web gui local upgrade) -->v.3.212 (web gui system auto check upgrade) → latest 3.215 beta 2 (local upgrade)

What an exciting flashing journey

felixuk2024 · 2024-05-30T02:33:59.203Z

Thanks that seemed to finally work for me, I created a GIST maybe it helps someone else in the future