Nova Air Recovery Image

[eagle_warrior]

I have a rooted Nova Air and I want to update the system, but my recovery seems to be broken and the recovery image is not included in the update package.

Can someone with rooted Nova Air help extract recovery image for me?

thanks

Step:

1. Get su shell

2. dd if=/dev/block/bootdevice/by-name/recovery of=/sdcard/Download/recovery_backup.img

3. (Optional) Generate checksum
   

   sha256sum /sdcard/Download/recovery_backup.img

[Renate]

Hi.
You can use my custom recovery for NovaAir that I made a while ago.
https://www.mobileread.com/forums/sh...84&postcount=6
It will boot to a white screen. You will have rooted ADB available.
If you want the normal recovery screen, just:

C:\>adb shell
# start recovery

[eagle_warrior]

Originally Posted by Renate

Hi.
You can use my custom recovery for NovaAir that I made a while ago.
https://www.mobileread.com/forums/sh...84&postcount=6
It will boot to a white screen. You will have rooted ADB available.
If you want the normal recovery screen, just:

C:\>adb shell
# start recovery

Thanks for the reply.

I'll give a try, but where can I find the misc-rec file?

fastboot flash misc misc-rec

[Renate]

Mmm, can you get to recovery just by:

adb reboot recovery

Things can get complicated if you use /misc to force it to recovery if there should be a problem with recovery as you can't disable it without a rooted normal system or fastboot or EDL mode or working recovery.
I'll post it if you can't get to recovery.

[eagle_warrior]

Originally Posted by Renate

Mmm, can you get to recovery just by:

adb reboot recovery

Things can get complicated if you use /misc to force it to recovery if there should be a problem with recovery as you can't disable it without a rooted normal system or fastboot or EDL mode or working recovery.
I'll post it if you can't get to recovery.

I tried flashing the recovery image and reboot recovery but now it stuck at a white screen. And my computer can't recognize it now lol. I can hold the power button and it will show the "Onyx" logo then go to the blank screen.
Seems maybe I can still get to the fastboot mode, just don't know how to do it.

Also my device now can't boot to system too.

Console log:

PS C:\platform-tools> .\fastboot flash recovery .\narec.img
Sending 'recovery' (19812 KB)                      OKAY [  0.440s]
Writing 'recovery'                                 OKAY [  0.226s]
Finished. Total time: 0.711s
PS C:\platform-tools> .\fastboot reboot recovery
Rebooting into recovery                            OKAY [  0.000s]
Finished. Total time: 0.003s
PS C:\platform-tools> .\adb devices
List of devices attached

PS C:\platform-tools> .\adb devices
List of devices attached

PS C:\platform-tools>

[Renate]

Yes, the white screen is what you get.
Is something detectable over USB? When you plug it in does it go "bong"?
Have you loaded ADB drivers?
Do you see something in Device Manager (devmgmt.msc)?

[eagle_warrior]

Originally Posted by Renate

Yes, the white screen is what you get.
Is something detectable over USB? When you plug it in does it go "bong"?
Have you loaded ADB drivers?
Do you see something in Device Manager (devmgmt.msc)?

Unfortunately no.
No plug in sound, no device detected in Device Manager.

Tested on two pcs.

[Renate]

Hmm, maybe this one is bad and I never got it working.
What with Nova/Note/Air/2 I get this stuff confused.
Also, I don't have one.
And I Frankinsteined this out of a Poke3 recovery.
Sorry.

You should be able to get out of this by doing a long power press and then when it reacts press the power button five times.

[eagle_warrior]

Originally Posted by Renate

Hmm, maybe this one is bad and I never got it working.
What with Nova/Note/Air/2 I get this stuff confused.
Also, I don't have one.
And I Frankinsteined this out of a Poke3 recovery.
Sorry.

You should be able to get out of this by doing a long power press and then when it reacts press the power button five times.

Just find out I am able to get to the 9008 mode.
Try to use it to get to the fastboot mode but still no luck.

Guess I have to take it to the service center.

PS C:\Downloads> .\edl.exe /l
Found EDL 900e
Resetting Sahara
Received unexpected 0x04 command
PS C:\Downloads> .\edl.exe /zf
Found EDL 900e
Requesting reset to fastboot... No response
PS C:\Downloads>

[Renate]

You have 900e which is the less capable cousin of 9008.
Also, the /zf works only if you loaded a Firehose loader (which exists for your model).
And /zf only works on some models.
If you got 9008 we could fix it going to recovery.

The 5 x power doesn't get you anywhere?

If you have a spare USB cable to sacrifice you can try to make an "EDL cable".
It doesn't work on my Poke3 but does on my Poke5.
On both of these I also have found the test points and added a magnetic switch.

[eagle_warrior]

Originally Posted by Renate

You have 900e which is the less capable cousin of 9008.
Also, the /zf works only if you loaded a Firehose loader (which exists for your model).
And /zf only works on some models.
If you got 9008 we could fix it going to recovery.

The 5 x power doesn't get you anywhere?

I'm not sure if i'm using the 5x power button method right because I can't shutdown my device right now. It just keep powering on and go to the blank screen. All I can do now is just long press the power button and it will force reboot, then I press power button 5 times. But I don't think that is working, still no plug in sound on my pc.

Originally Posted by Renate

If you have a spare USB cable to sacrifice you can try to make an "EDL cable".
It doesn't work on my Poke3 but does on my Poke5.
On both of these I also have found the test points and added a magnetic switch.

Sure I can try this, do you have a link or sth that can show me how to do?

thx

[Renate]

Get a USB 2.0 Type C to Type A cable (this is Type C, isn't it?).
Get a cable where the Type A (the desktop side) is not blue inside.
Pick a spot in the middle and nibble away the jacket for a few inches.
Push aside everything but the black and the green wires.
Nibble away the insulation on a section of the black and green.
https://wiki.bananahackers.net/devel.../diy-edl-cable

[jljtgr]

Originally Posted by eagle_warrior

I'm not sure if i'm using the 5x power button method right because I can't shutdown my device right now. It just keep powering on and go to the blank screen. All I can do now is just long press the power button and it will force reboot, then I press power button 5 times. But I don't think that is working, still no plug in sound on my pc.
{...}

If you have a power LED indicator or the Onyx logo on the screen as an indication of timing... I suggest you try this method a few times with different timing. (wait a different amount of time each time)

Even while bootlooping, it is more difficult but not impossible... you just need to observe an obvious point in the cycle to alter your timing against. If I had to do this trick today, I expect I would not do it correctly in under 5 attempts.

Since you are not boot looping, you have a bit of control over when the reboot happens. Hold down power for X amount of time, release and do the 5 presses within 2 seconds. Change X until you find the right timing.