Cannot boot Boox Savi 6 (Go 6) into EDL Mode using an EDL cable

oxgorou · 05-10-2026, 07:15 AM

I accidentally bricked my Savi 6 (Go 6) by flashing the wrong .img files to both the A and B recovery partitions. It is currently stuck at the logo, but Fastboot (the bootloader) is still communicating. I ordered an EDL cable with a button, but when I try to boot the device while pressing the EDL button, it doesn't enter EDL mode; it remains stuck at the logo. Sometimes, when it restarts, it shows a longer black screen before showing the logo again, but this time Fastboot cannot communicate with it. Does anyone know how to fix this?

oxgorou · 05-10-2026, 07:51 AM

When holding the Power and EDL buttons for more than 10 seconds, the black screen stays on longer instead of just flashing. In this state, Windows no longer recognizes the device in fastboot mode. However, I still can't use EDL because the tool says 'Could not find EDL device'

Renate · 05-11-2026, 12:56 AM

When you boot into EDL mode the screen does not change because the primary bootloader in ROM does not even know what an Eink display is.
You must hold the EDL button for a second longer than the power button.

Are you on Windows or Linux? For Windows you need a driver.

oxgorou · 05-11-2026, 01:22 AM

Quote:

Originally Posted by Renate

When you boot into EDL mode the screen does not change because the primary bootloader in ROM does not even know what an Eink display is.
You must hold the EDL button for a second longer than the power button.

Are you on Windows or Linux? For Windows you need a driver.

I use both operating systems. On Windows, I used Zadig to install the driver. When I hold both the power and EDL buttons, the device restarts (showing a black screen for a bit longer), then displays the logo and gets stuck there. At this stage, neither Windows nor Linux recognizes the device in fastboot mode, and they don't detect any 9008 devices either

Renate · 05-11-2026, 08:28 AM

Did you overwrite either xbl or abl?
As I said, if the screen changes you have not gone to EDL.
Maybe the cable is wrong, maybe you're using it wrong, maybe the test for D+ is no longer in abl.
If you can't figure it out you'll have to use the internal test points.

oxgorou · 05-11-2026, 09:11 AM

Quote:

Originally Posted by Renate

Did you overwrite either xbl or abl?
As I said, if the screen changes you have not gone to EDL.
Maybe the cable is wrong, maybe you're using it wrong, maybe the test for D+ is no longer in abl.
If you can't figure it out you'll have to use the internal test points.

I didn’t overwrite XBL or ABL. Also, I’m just sending my device back to the retailer. I might request an exchange for the Go 6 but I'm not sure yet…

oxgorou · Yesterday, 11:10 PM

Quote:

Originally Posted by Renate

Did you overwrite either xbl or abl?
As I said, if the screen changes you have not gone to EDL.
Maybe the cable is wrong, maybe you're using it wrong, maybe the test for D+ is no longer in abl.
If you can't figure it out you'll have to use the internal test points.

Could you guide me on the proper way to make the device go into EDL mode with an EDL cable? Maybe the current cable I'm using is faulty, so I ordered another one to try.

Renate · Today, 01:02 AM

The best way (if you can do it) is to power down your device completely (not sleeping) with no USB cable connected.
Plug the cable into the PC, leave the device end disconnected, push and hold the button, plug the cable into the device, say out loud, "One Mississippi", release the button.

If you have a running system you can also select the "Restart" option while holding the EDL button for 5 seconds.
(But if you had that you could just "adb reboot edl".)

The next best way is to plug both ends of the cable in, push and hold the EDL button, push the power button, wait 10 seconds, release the power button, "One Mississippi", release the EDL button.

I built a box that doesn't use a button and automatically knows when your device is trying to check for EDL cable.
That's in another country right now and I should build another.

05-10-2026, 07:15 AM	#1
oxgorou Junior Member Posts: 6 Karma: 10 Join Date: May 2026 Device: Boox Savi 6 (Go 6)	Cannot boot Boox Savi 6 (Go 6) into EDL Mode using an EDL cable I accidentally bricked my Savi 6 (Go 6) by flashing the wrong .img files to both the A and B recovery partitions. It is currently stuck at the logo, but Fastboot (the bootloader) is still communicating. I ordered an EDL cable with a button, but when I try to boot the device while pressing the EDL button, it doesn't enter EDL mode; it remains stuck at the logo. Sometimes, when it restarts, it shows a longer black screen before showing the logo again, but this time Fastboot cannot communicate with it. Does anyone know how to fix this?

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05-10-2026, 07:51 AM	#2
oxgorou Junior Member Posts: 6 Karma: 10 Join Date: May 2026 Device: Boox Savi 6 (Go 6)	When holding the Power and EDL buttons for more than 10 seconds, the black screen stays on longer instead of just flashing. In this state, Windows no longer recognizes the device in fastboot mode. However, I still can't use EDL because the tool says 'Could not find EDL device'

05-11-2026, 12:56 AM	#3
Renate Onyx-maniac Posts: 4,430 Karma: 22077647 Join Date: Feb 2012 Location: Germany Device: Nook NST, Glow2, 3, 4, '21, Kobo Aura2, Poke3, Poke5, Go6	When you boot into EDL mode the screen does not change because the primary bootloader in ROM does not even know what an Eink display is. You must hold the EDL button for a second longer than the power button. Are you on Windows or Linux? For Windows you need a driver.

05-11-2026, 08:28 AM	#5
Renate Onyx-maniac Posts: 4,430 Karma: 22077647 Join Date: Feb 2012 Location: Germany Device: Nook NST, Glow2, 3, 4, '21, Kobo Aura2, Poke3, Poke5, Go6	Did you overwrite either xbl or abl? As I said, if the screen changes you have not gone to EDL. Maybe the cable is wrong, maybe you're using it wrong, maybe the test for D+ is no longer in abl. If you can't figure it out you'll have to use the internal test points.

Today, 01:02 AM	#8
Renate Onyx-maniac Posts: 4,430 Karma: 22077647 Join Date: Feb 2012 Location: Germany Device: Nook NST, Glow2, 3, 4, '21, Kobo Aura2, Poke3, Poke5, Go6	The best way (if you can do it) is to power down your device completely (not sleeping) with no USB cable connected. Plug the cable into the PC, leave the device end disconnected, push and hold the button, plug the cable into the device, say out loud, "One Mississippi", release the button. If you have a running system you can also select the "Restart" option while holding the EDL button for 5 seconds. (But if you had that you could just "adb reboot edl".) The next best way is to plug both ends of the cable in, push and hold the EDL button, push the power button, wait 10 seconds, release the power button, "One Mississippi", release the EDL button. I built a box that doesn't use a button and automatically knows when your device is trying to check for EDL cable. That's in another country right now and I should build another.

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