PW5:Make Library page Default on start in Launcher,Cloud Not Available Error

[Hightree]

Hi!

1) Is there a way to make default PW5 laucher to open LIBRARY page upon start instead of HOME page? (e.g make library page default).

The goal is to get more space screen for local documents.
Most of "Home" screen is taken by useless info like "Popular reads" and "Read your way".

2) When I click on "Library" page, there's always message "Cloud Not Available" and "You must register your Kindle to view and download items from the Cloud" with 2 buttons: Cancel and Register.

I don't need any cloud (nor registered for any amazon cloud), the only issue here is that I have to click "Cancel" every time I open Library page.
I don't need ANY amazon services.

Kindle is both jailbroken and fake-registered.
On Launcher's Home page it RECOGNISES the registration and in drop menu all the options besides "Create a collection" available.

This is messages log when I press "Library" from Launcher "Home":

[!]231112:002307 KPPMainApp: [8351] [SubmittedTask::execute():INFO] Moving current task 'emit:80' into EXECUTING state.
[!]231112:002307 KPPMainApp: [8351] [SubmittedTask::execute():INFO] Starting Task: 'emit:80'.
[!]231112:002307 KPPMainApp: [8351] [SubmittedTask::execute():INFO] Moving current task 'emit:80' into DONE state.
[!]231112:002307 KPPMainApp: [8351] [SubmittedTask::execute():INFO] Moving current task 'EmitRecord:40' into EXECUTING state.
[!]231112:002307 KPPMainApp: [8351] [SubmittedTask::execute():INFO] Starting Task: 'EmitRecord:40'.
[!]231112:002307 KPPMainApp: [8351] [SubmittedTask::execute():INFO] Moving current task 'EmitRecord:40' into DONE state.
[!]231112:002307 KPPMainApp: C :::[8351][2023-11-12 00:23:07.800] ModuleManager:188 CRITICAL: Invoke Module:1 for Event:0xb4088870, Owner:1, Id:2, Src:11, Dst:1, Callback:False
[!]231112:002307 KPPMainApp: I :::[8351][2023-11-12 00:23:07.802] KPPChromeDataProvider:807 INFO_SENSITIVE: DELETED
[!]231112:002309 KPPMainApp: [8351] [SubmittedTask::execute():INFO] Moving current task 'RequestCoverArtWithCdePairsAsync:150' into EXECUTING state.

Whats 'emit:80' task?

An option of replacing default launcher with smth else (like KUAL works also). The only thing thats missing in e.g. KUAL as a primary laucher for me is backlight/wifi settings.
Don't know how to write .conf file for starting KUAL on boot anyway.

I have KTERM, KUAL installed, not afraid of technicalities.
Thank you for reading!

[czerepak1]

I am also interested in this answer. I followed Marek's fantastic LanguageBreak for my PW5 and am both very annoyed by both the issues raised. The difference is that mine is not fake registered, nor real-registered. Despite also downloading and activating BackDoorLock and renameotabin, I am paranoid it will still try to sneak updates on me.

[j.p.s]

Has either of you considered downgrading to a firmware with a less annoying UI?

[czerepak1]

I have seen that recommendation and I was going to try it if there were no other options. However, there is some recent chatter about LanguageBreak not working on older devices and firmware. I was just checking if there were any non-nuclear options to adjust the UI through extensions or additional tools but I also understand sometimes you can't have your cake and eat it too.

[j.p.s]

Originally Posted by czerepak1

I have seen that recommendation and I was going to try it if there were no other options. However, there is some recent chatter about LanguageBreak not working on older devices and firmware. I was just checking if there were any non-nuclear options to adjust the UI through extensions or additional tools but I also understand sometimes you can't have your cake and eat it too.

That is about performing the LanguageBreak jailbreak on lower firmware. If your kindle has been jailbroken, you can downgrade to a lower firmware. I've never downgraded, so I don't know if you need to re-jailbreak, so it would be best to downgrade to a firmware that can be broken with WatchThis! or KindleBreak. If that leaves you with a firmware lower than you want, you can upgrade to a suitable later version.

The whole point of a jailbreak is to install the community developer key, which allows community signed packages to be installed, primarily MRPI and KUAL. That opens the door to custom package installation. KUAL extensions don't even need to be signed.

The hotfix enables the jailbreak to survive firmware updates (up or down), but amazon complicated things starting with 5.16 by storing developer keys in a mounted squashfs. I don't know whether the hotfix takes care of the case of downgrading to a version using the old key storage method.

[Hightree]

Originally Posted by j.p.s

Has either of you considered downgrading to a firmware with a less annoying UI?

Which FW version would you advise for PW5?
Or whats the lowest FW version available for PW5?

Is it possible to just downgrade KPP app?
I've spent quite a bit of time getting rid of updates and other OS configuration, so would rather just downgrade KPP app than downgrade the whole FW.
Kernel and utilities version will likely go down with downgrading FW.

[Hightree]

Originally Posted by j.p.s

The hotfix enables the jailbreak to survive firmware updates (up or down), but amazon complicated things starting with 5.16 by storing developer keys in a mounted squashfs.

Do you know which partition dev name/number in 5.16 developer keys are stored in?

[Hightree]

I tried making other apps default on boot instead of KPP, but KPP still being started whenever you exit non-KPP app.
I guess we need to modify some .db file.
Also if you make KUAL to boot on restart - smth weird happens when you open any app from KUAL.

[j.p.s]

Originally Posted by Hightree

Which FW version would you advise for PW5?
Or whats the lowest FW version available for PW5?

Is it possible to just downgrade KPP app?
I've spent quite a bit of time getting rid of updates and other OS configuration, so would rather just downgrade KPP app than downgrade the whole FW.

That depends on you. I would start with the highest version that you can live with that is also less than 5.16.3

I've never heard of anyone replacing individual parts of the "OS" with older versions.

It's difficult that you have not said which fw version you are on and which prior versions you have experience with. There are a large number of different opinions over which firmware version is best.

It is still in an early stage, but have a look at the wiki page
https://wiki.mobileread.com/wiki/Kindle_Firmware

There is usually a thread opened on the kindle forum whenever a new firmware is released. These usually mention new features, lost features, and various annoyances.

Originally Posted by Hightree

Do you know which partition dev name/number in 5.16 developer keys are stored in?

The keys used to be in a file in /etc uks.somthing and starting in 5.16 they are in a squashfs, presumably in /etc

Even more recently executable binaries use the hardware floating point ISA.

[mergen3107]

Originally Posted by Hightree

I have KTERM, KUAL installed, not afraid of technicalities.

First of all, please be careful when fiddling with system bins and startup scripts. It is really easy to make Kindle boot loop if you don't know exactly what you are doing.

Second, it is safer to have USBNetwork installed and enable its option "Enable on boot" in KUAL - this way you have much better chances to revert damage during boot loop (preferrable via cable, don't rely on USBNetwork over Wi-Fi - wi-fi daemon might not even start and laso catch the proper network if things are too bad).

Third, here is a non-intrusive idea:
I double-checked this command and it works in Kindle Scribe 5.16.2. From SSH terminal:

lipc-set-prop com.lab126.appmgrd start app://com.lab126.booklet.home

Now, this brings you to the same home tab. But maybe there is another one that brings you to the library?

I don't know where to check, but this a good starting point.

Then, there should be the last startup script somehwere in /etc/init.d or something similar (didn't check it on 5.16.2 yet, trying to remember what it was on PW3 with 5.9.7). I think (and hope) that adding stuff to the very end of it should be safe, but I've never tested it.

[Hightree]

Originally Posted by j.p.s

It's difficult that you have not said which fw version you are on and which prior versions you have experience with.

sorry 5.15.1.
No experience with any prior/later FW.

[Hightree]

Originally Posted by mergen3107

Second, it is safer to have USBNetwork installed and enable its option "Enable on boot" in KUAL - this way you have much better chances to revert damage during boot loop (preferrable via cable, don't rely on USBNetwork over Wi-Fi - wi-fi daemon might not even start and laso catch the proper network if things are too bad).

Of course, I already have USBnet starting on boot, I would brick it 10 times otherwise already
Thank you anyway!

I do have Wi-Fi enabled. If wi-fi daemon does not start, wouldn't ssh over USB still work?

[Hightree]

Originally Posted by mergen3107

Now, this brings you to the same home tab. But maybe there is another one that brings you to the library?

If there's lipc event for switching to library page - it would show up in the log.
I studied log during switching to library page and couldn't find any lipc event.
Its probably just hardcoded.
I think the only hope is some setting in one of .db files if exist at all.

[mergen3107]

@Hightree,

Yes, but there is also a dangerous option in USB Network to limit SSH to Wi-Fi only (sorry, forgot to include that detail).

[j.p.s]

Originally Posted by Hightree

Or whats the lowest FW version available for PW5?

Originally Posted by Hightree

sorry 5.15.1.
No experience with any prior/later FW.

A side effect of amazon's Source Code Notice page is to list the firmwares for each kindle model (except that a few firmware got omitted, e.g. 5.10.3 on the KV.
https://www.amazon.com/gp/help/custo...deId=200203720

For the PW5, you can go as low as 5.14.1.1