Tolino Shine 4 Bricked after downgrade from 16.1.0 to 15.3.0

[f_coco]

Dear all,
My tolino shine 4 bricked after trying downgrade from 16.1.0 to 15.3.0.
The screen displays a triangle with an exclamation mark inside. And it shows an error message.
Since the ADB is enabled before and the device can be seen as a MTP device. I put a 16.1.0 update package in the device root.
But when i use a adb reboot recovery command to reboot the devices into recovery and try to reflash it, It can not enter the recovery mode.
I tried serval method find on the internet including press the power button for 15 seconds but without luck, i can get into the recovery mode.
Dose anyone have a confirmed method to put the shine 4 into the recovery mode?

[ottischwenk]

Originally Posted by f_coco

Dose anyone have a confirmed method to put the shine 4 into the recovery mode?

You should enter recovery mode by first switching off the device completely and then holding down the power button until the screen has flashed twice.
A short press on the power button moves to the next point, a long press selects it.

[f_coco]

Originally Posted by ottischwenk

You should enter recovery mode by first switching off the device completely and then holding down the power button until the screen has flashed twice.
A short press on the power button moves to the next point, a long press selects it.

Thank you for the reply.
I finally open it up and restore a tf image to bring it back.

[Waldy]

I'm not sure, but I think now unfortunately in your case it's not possible to boot into recovery mode.
If you need an image for Shine 4, PM me.

[f_coco]

Originally Posted by Waldy

I'm not sure, but I think now unfortunately in your case it's not possible to boot into recovery mode.
If you need an image for Shine 4, PM me.

Thank you Waldy, i already download your tf image from another forum.
I'm now wondering if a mobiscribe origin's firmware cloud be port to tolino series or nook series. Seems they all made by NTX, and all use android 8.1.