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Installation / Removal
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No bootloader backup after native installation Hifi Walker H2
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Topic: No bootloader backup after native installation Hifi Walker H2 (Read 2604 times)
Zweeni
Member
Posts: 9
No bootloader backup after native installation Hifi Walker H2
«
on:
August 18, 2024, 02:25:09 PM »
Hello community,
as I said, I would like to go back to the original bootloader but I don't have a backup.
how can I get rid of the bootloader from Rockbox?
thanks in advance.
Greetings, Sven
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Zweeni
Member
Posts: 9
Re: No bootloader backup after native installation Hifi Walker H2
«
Reply #1 on:
August 19, 2024, 09:53:06 AM »
Hello, it's me again.
After searching
the forum, I found out that nothing is possible without a backup.
Would someone perhaps provide me with their backup?
My device is a Hifi Walker H2 and was delivered with FW 1.8.
I would be very happy to go back to the original,
because the inverted colors in the Rockbox are not funny.
Best wishes, Sven
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dconrad
Developer
Member
Posts: 202
Re: No bootloader backup after native installation Hifi Walker H2
«
Reply #2 on:
August 19, 2024, 11:25:40 AM »
I believe you should be able to boot into the stock firmware (hold Play while booting) and flash a new update.upt firmware (either stock or patched for Rockbox (Hosted)), does that work by chance? If I recall correctly, that should also work.
I should also add that it should be specifically a 1.8 firmware image.
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dconrad
Developer
Member
Posts: 202
Re: No bootloader backup after native installation Hifi Walker H2
«
Reply #3 on:
August 19, 2024, 12:01:02 PM »
Before you do that though, any chance you would be willing to test out a possible fix?
If so, you could download the bootloader and zip file from here:
https://drive.google.com/drive/folders/19yRR0GXw8FkhN_R_rm_gDZDfqoKLX2ze?usp=share_link
It corresponds to this patchset:
https://gerrit.rockbox.org/r/c/rockbox/+/5877
Extract the zip file to the root of your SD card and use jztool to temporarily boot it just like you did for installation. There's no need to install the bootloader (unless you want to), just boot right into Rockbox and see if the LCD behaves.
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Zweeni
Member
Posts: 9
Re: No bootloader backup after native installation Hifi Walker H2
«
Reply #4 on:
August 19, 2024, 03:06:36 PM »
Hello @Dconrad
Thank you very much for your help.
Unfortunately I didn't have any success.
The bootloader was mirrored and the colors are still inverted.
The tip about pressing the play button when booting didn't work either.
It's a shame, but I'm not giving up.
Maybe someone else has some advice.
Best wishes, Sven
P.S., sorry for my bad English, I'm translating from German using Google Translate.
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dconrad
Developer
Member
Posts: 202
Re: No bootloader backup after native installation Hifi Walker H2
«
Reply #5 on:
August 19, 2024, 04:55:12 PM »
I see. Just for my own information, were you able to boot the original firmware at all by holding Play while booting? That should work, at least. The LCD might be weird still, but it should fundamentally still boot.
«
Last Edit: August 19, 2024, 10:49:49 PM by dconrad
»
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Zweeni
Member
Posts: 9
Re: No bootloader backup after native installation Hifi Walker H2
«
Reply #6 on:
August 20, 2024, 03:24:08 AM »
Hallo @Dconrad
No, I only get to a menu where I can select 3 options "Rockbox" "Tools" "Hiby Player"
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dconrad
Developer
Member
Posts: 202
Re: No bootloader backup after native installation Hifi Walker H2
«
Reply #7 on:
August 20, 2024, 07:21:57 AM »
Oh! That's the hosted bootloader. The Hiby Player is the original firmware. Ok, so it does still boot to the original firmware. That tells me what I need to know, thanks.
«
Last Edit: August 20, 2024, 09:12:57 AM by dconrad
»
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Zweeni
Member
Posts: 9
Re: No bootloader backup after native installation Hifi Walker H2
«
Reply #8 on:
August 20, 2024, 11:08:56 AM »
Unfortunately not completely because I also flashed the native bootloader using Jz Tool and I can only get to the boot menu if I press Volume + when booting.
From the looks of things, both bootloaders are on there. Native and hosted. That could of course be the case.
because I tried the hosted part first.
Grüsse Sven
«
Last Edit: August 20, 2024, 11:20:51 AM by Zweeni
»
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Zweeni
Member
Posts: 9
Re: No bootloader backup after native installation Hifi Walker H2
«
Reply #9 on:
August 20, 2024, 11:32:49 AM »
Otherwise, I'm very happy with Rockbox and would keep it.
There are no problems with the hosted version.
If I could go back to that, I'd be very happy.
Or just get rid of the color error in the native version.
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dconrad
Developer
Member
Posts: 202
Re: No bootloader backup after native installation Hifi Walker H2
«
Reply #10 on:
August 20, 2024, 12:28:18 PM »
I'm fairly certain you could reinstall the hosted image and it will overwrite the native port bootloader... Especially since you are overwriting it with the same version which is already on it. I have an old player at home I can try it on when I get home today to make sure if you would like. You would just go into the Hiby Player and do an update from that.
I believe the wiki says what it says because switching versions could cause a problem, as well as just out of an abundance of caution.
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Zweeni
Member
Posts: 9
Re: No bootloader backup after native installation Hifi Walker H2
«
Reply #11 on:
August 20, 2024, 12:50:57 PM »
Thank you very much for your efforts.
I am so grateful.
Unfortunately, installing the update via Hiby Player didn't work either.
But I haven't tried the hosted bot loader via Jztool yet.
RockboxUtillity didn't give an error message but didn't work either.
Logged
dconrad
Developer
Member
Posts: 202
Re: No bootloader backup after native installation Hifi Walker H2
«
Reply #12 on:
August 20, 2024, 08:56:27 PM »
I have learned some interesting things today - It seems that you are correct - updating the original firmware does not work with the (current) native bootloader installed. Even if it did, the update image does not overwrite the bootloader. The binaries to do so are located in the update file, but they are not marked to be installed.
However! The bootloader binaries we need are indeed located in the update file. I tried to extract the part we need and create a "synthetic" bootloader backup file which can be Restored via our native bootloader. I tried this with my own v1.3 H2 and had success. If this does not work, we can try using an unmodified binary file, but that is larger so it is good to try this first.
So it is up to you if you want to try this or not. I had success testing with my v1.3 device. In the worst case scenario, you will just need to re-install the native bootloader as you did before using jztool. Hopefully in that case we can have a version that fixes the LCD issue anyway.
If you wish to instead still find someone with a "real" backup from a v1.8 device, I understand and will not be offended at all
So if you're willing to try this, do the following:
Download
this
backup file
Place it on the root of your SD card
Rename the file to erosqnative-boot.bin
Hold VolUp+Power to access the bootloader menu
Select "Restore"
Reboot the device
Now you should be at the Hosted Rockbox bootloader screen. You can place a Hosted Rockbox installation on your SD card from
here
. You could also use Aigo Player to install a stock (non-rockbox) v1.8 firmware file if you wish.
«
Last Edit: August 20, 2024, 09:21:38 PM by dconrad
»
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Zweeni
Member
Posts: 9
Re: No bootloader backup after native installation Hifi Walker H2
«
Reply #13 on:
August 21, 2024, 04:34:44 AM »
Hello @dconrad,
I can report success, everything is back to how it should be.
The synthetic bootloader works perfectly.
Hiby Player says it's version 1.8.
What can I say, fantastic work and very quick help.
I'm thrilled.
Can I help in any way?
Grüsse Sven
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dconrad
Developer
Member
Posts: 202
Re: No bootloader backup after native installation Hifi Walker H2
«
Reply #14 on:
August 21, 2024, 11:45:18 AM »
Glad it worked! We know now that this is a possibility, which is great
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