What does moving to Android 13 entail for ROM developers? - Android Q&A, Help & Troubleshooting

I'm very curious about this, and I have some speculations but wanted to ask the question to get a better understanding. I use BlissROM, and I'm not worried about a time frame or anything like that, I'm just genuinely curious. I don't know if the Kernel would change, and if it did I imagine it would mainly be for security upgrades or something like that. Since the Kernel is the interface for the software to the hardware, and the hardware hasn't changed, is it right to assume not much change there?
Then there are all the google services like framework, play services and the like. I would think those would simply be replacing the old with new, and what would be left is integrating any features that are new to A13. If there is anything more to it than that? I imagine custom recoveries would face the same issue that TWRP had for awhile on my device (OnePlus 7 Pro) until a build was released that handled the decryption for A12. Other than that what else needs to be done to upgrade a ROM in between versions like this?

mnemesis said:
I'm very curious about this, and I have some speculations but wanted to ask the question to get a better understanding. I use BlissROM, and I'm not worried about a time frame or anything like that, I'm just genuinely curious. I don't know if the Kernel would change, and if it did I imagine it would mainly be for security upgrades or something like that. Since the Kernel is the interface for the software to the hardware, and the hardware hasn't changed, is it right to assume not much change there?
Then there are all the google services like framework, play services and the like. I would think those would simply be replacing the old with new, and what would be left is integrating any features that are new to A13. If there is anything more to it than that? I imagine custom recoveries would face the same issue that TWRP had for awhile on my device (OnePlus 7 Pro) until a build was released that handled the decryption for A12. Other than that what else needs to be done to upgrade a ROM in between versions like this?
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Hello and good morning, @mnemesis
Welcome to XDA. I hope you'll always find and get the support you require.
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Related

[Q] Do you like a forum reorg?

Hi,
I would like to propose the creation of a central reference thread for each sub-forum within the X10mini/pro fora.
They would contain rules, how to search, basics, FAQs, links to rooting, tutorials/guides, mods, themes, apps,... with respect to the respective sub-forum.
To get an idea check e.g. Hero CDMA Android Dev.
This will hopefully
-help organizing the fora more clearly
-prevent the same questions coming up all over again
-provide a useful pool of up-to-date information for both new and experienced users
-reduce everyone's need to search for fundamental things
-negate the need to otherwise sticky so many threads that the fora are just becoming unclear and clogged
You would be responsible to propose threads kept for future reference.
Opinions pls.
Thx and Best, DK
i think we have a thread like the CDMA thread made by dettofatto. the only thing is that we have multiple threads on same topic which could be deleted
just checked them briefly and yes, very good and helpful, not stickied though
so referencing them would be a must but imo wouldn't contradict my proposal about the central thread...
still, that's just me and its about you...will therefore patiently wait for further comments on this
Ed. I can add a poll if you think that's more helpful/faster
Sounds good.. and while we are at it.. get people to stick to the threads.. put all Themes in the Themes and Apps thread (not in Development) keep DEV stuff in the Dev Thread etc.. perhaps add a Newbie Thread where newbs can ask for help with issues so they don't fill the other threads...
Why are there Themes in the Dev section?
But yes a reorg is needed.
Kiwi
My concern is create two separate forums for x10 mini and x10 mini pro
kiwiBratwurst said:
Sounds good.. and while we are at it.. get people to stick to the threads.. put all Themes in the Themes and Apps thread (not in Development) keep DEV stuff in the Dev Thread etc.. perhaps add a Newbie Thread where newbs can ask for help with issues so they don't fill the other threads...
Why are there Themes in the Dev section?
But yes a reorg is needed.
Kiwi
Click to expand...
Click to collapse
unfortunately happens regularly, excuses are manyfold and it would be naive to think this project will prevent it
still should be well worth the effort
cleanup and heavy thread shifting will be done anyway, already started but due to time restriction only on the dev fora...but will be continued
Naren Raj said:
My concern is create two separate forums for x10 mini and x10 mini pro
Click to expand...
Click to collapse
I assume you mean for all subfora and not only for dev?
are accessories, t&a and so on so different that one cannot be used for/is incompatible to the other device?
then I would talk to admin, so pls enlighten me
I think that is fine and useful to put all important sw,updates and guides in same thread and link discussions only to this thread, of course then each sw has own discussions for help and experiences.
I would like a forum reorg
i also think that there are too many simillar threads, some that are just questions and are very missleading sometimes, also in the wrong place, maybe a structure like
*general
--tutorials/findings/configs/etc
--questions
*developement
--e10i/u20i
---->findings/breakthroughs/tutorials
---->questions
--e10i specific
---->findings/breakthroughs/tutorials
---->questions
--u20i specific
---->findings/breakthroughs/tutorials
---->questions
*themes
--method tutorials
--themes postings
--questions
*requests
or something like that because a reorganization is in need
also i think that there should be a section for both mini and pro because they may be different in hardware, but many methods, apps and ideas frome one work on the other and i feel that sometimes we miss out on developement from one or the other
hi
thx all for the contribution, I waited some time hoping additional ones might be posted, but maybe all are happy with the current suggestions...or waiting for my response...
lets comment:
all devices get as default the layout
xx General
xx Development
xx Accessories
xx Themes & Apps
device specific we have the known two dev fora, one for e10i and one for u20i and I don't think I can convince admin to create another one for shared development
not that I don't see the potential advantage, but I assume "misuse" would dominate so I'm fine as it is
still I also considered it wise to provide a place to collect development results of any kind usable on both devices
so alternately you have to specify dual usage in the thread title and we can also create an additional thread with references on that
reaching certain criteria a separate Q&A can be added, which I personally like very much and will address to admin immediately when a fore mentioned criteria are fulfilled
so as mentioned we are bound to the general forum layout, but what we might achieve could be like this:
*general
---->tutorials/findings/configuration/requests/FAQs/troubleshooting/references/how to/etc
---->e.g. separate thread like "newbies questions here"
---->OT chat thread if you like
*accessories
---->all accessories (batteries, cases, screen protection,...)
*development
--e10i specific
---->development (non app, non theme)/findings/breakthroughs/tutorials/roms/guides/modifications
---->reference thread for everything proven working/usable on both devices
--u20i specific
---->development (non app, non theme)/findings/breakthroughs/tutorials/roms/guides/modifications
*themes and apps
---->method tutorials/themes postings/applications posting/screen shots/miscellaneous (like splash screens,...)
*questions&answers (hopefully soon)
---->for all the rest (when available)
not stating this is finalized but it should give a good idea
comments pls
Cheers, DK
Reorganize! Hellyah!
Reorganize! Hellyah!
I intend to start this weekend, because I won't find the time before, but it's scheduled...
sounds really good!
maybe creating at the theme section a difference for mini and pro, or does the most of them on both models?
I would like to see a Q&A section. It would be nothing but beneficial as a place for people to ask questions without cluttering the general thread.
option94 said:
I would like to see a Q&A section. It would be nothing but beneficial as a place for people to ask questions without cluttering the general thread.
Click to expand...
Click to collapse
I already requested it, it will be available as soon as site admin finds the time
I figured that, just throwing my .02 cents out there.
forum is good!but sometimes slows...
kobzarcheg said:
forum is good!but sometimes slows...
Click to expand...
Click to collapse
care to elaborate on that?
it is nice...
we will have a new org?
PTGamer said:
we will have a new org?
Click to expand...
Click to collapse
there already is as proposed in #1
pls explain in detail what you mean

Possible ?

Hi all
I am newish to the Android world but have been a programer in the embeded C world and before I start trying to resolve my issue I would like to know if I am just barking up the wrong tree.
I have been trying to replace a very old HP Ipaq 5700 that I use only for GPS purposes with something more modern and a larger screen for some time but although I got close it was not good enough as a replacement, the program I use is Memory map and their version for the Android platform was awful. I purchased a Ruggex Rhino two device that runs Lolipop 5.1 and got to the point where it would run the Memory map software and display the GPS data being sent from my Ublox GNSS receiver via bluetooth and it gave current location, but it was not good enough to use in the field. Memory map have now updated their program so it runs on Android, Windows and Linux and it is a much better user interface but requires Android 6 or later.
So having read about custom ROM's and getting Android updated is it possible to do this to any Android device such as my device bearing in mind it will only be used to receive a Bluetooth signal and run basic apps, no intention of fitting a sim as I need really good battery life.
If this is possible could someone please point me in the right direction, the device already has it's boatloader unlocked.
Thanks Roy
Spectric2 said:
Hi all
I am newish to the Android world but have been a programer in the embeded C world and before I start trying to resolve my issue I would like to know if I am just barking up the wrong tree.
I have been trying to replace a very old HP Ipaq 5700 that I use only for GPS purposes with something more modern and a larger screen for some time but although I got close it was not good enough as a replacement, the program I use is Memory map and their version for the Android platform was awful. I purchased a Ruggex Rhino two device that runs Lolipop 5.1 and got to the point where it would run the Memory map software and display the GPS data being sent from my Ublox GNSS receiver via bluetooth and it gave current location, but it was not good enough to use in the field. Memory map have now updated their program so it runs on Android, Windows and Linux and it is a much better user interface but requires Android 6 or later.
So having read about custom ROM's and getting Android updated is it possible to do this to any Android device such as my device bearing in mind it will only be used to receive a Bluetooth signal and run basic apps, no intention of fitting a sim as I need really good battery life.
If this is possible could someone please point me in the right direction, the device already has it's boatloader unlocked.
Thanks Roy
Click to expand...
Click to collapse
Hello and good afternoon, @Spectric2
Welcome to XDA. I hope you'll always find and get the support you require.
However, prior to your next posting please read the guidances that are stuck on top of every forum like
Note: Questions go in Q&A Forum
If you are posting a Question Thread post it in the Q&A forum. Technical discussion of Android development and hacking. No noobs, please. Device-specific releases should go under the appropriate device forum...
forum.xda-developers.com
and the others. I've moved the thread to Android Q&A.
Regards
Oswald Boelcke
Senior Moderator
Thanks Oswald
Roy
@Spectric2 No problem, Roy. It's good to have you onboard.
I just saw your post by accident. As I don't know how familiar you are with XDA, if you like to make somebody aware of your post you'd have to either mention that member or to reply to his post (what we also call to quote the member). I did both in my post above.
@sd_shadow explained it very nicely in his guide here:
[Index] XDA 2021: How to Navigate the New Site Layout
XDA 2021 [INDEX] Helpful Information Welcome, this thread has been created to encompass everything you may need to navigate the new site layout. Please only post in this thread with feedback on how to improve this document. Do not post "Thank...
forum.xda-developers.com
Regards
Oswald Boelcke

Multi-user user switching

Hi guys.
The background: I bought a new tablet that removed the multi-user android feature () or, to better say, the feature is *hidden*.
The foreground: I'm able to recall the right screen calling the right activity and I'm able to create X users like expected.
Obviously the feature is removed (hidden) so also the user switcher icon is removed too.
Here come the development idea.
Build something quick tile? App with permanent notification? Actually no idea, but before thinking about the form, I need the base. How to switch user.
First of all: think you possibile to recall the user switch by call an intent/activity (I talk about the real switch, not the multi-user feature, that need to unlock the screen) maybe passing a static user value/ID?
Without intent/activity, how to achieve the result? I've experience in coding but totally new to android development, I never wrote a single line of code for our green robot.
I wouldn't but...
Redirect Notice
www.google.com
Google search: "android multi user,xda"
Or such.
extreme79 said:
Hi guys.
The background: I bought a new tablet that removed the multi-user android feature () or, to better say, the feature is *hidden*.
The foreground: I'm able to recall the right screen calling the right activity and I'm able to create X users like expected.
Obviously the feature is removed (hidden) so also the user switcher icon is removed too.
Here come the development idea.
Build something quick tile? App with permanent notification? Actually no idea, but before thinking about the form, I need the base. How to switch user.
First of all: think you possibile to recall the user switch by call an intent/activity (I talk about the real switch, not the multi-user feature, that need to unlock the screen) maybe passing a static user value/ID?
Without intent/activity, how to achieve the result? I've experience in coding but totally new to android development, I never wrote a single line of code for our green robot.
Click to expand...
Click to collapse
Hello and good afternoon, @extreme79
Prior to your next posting please read the guidances that are stuck on top of every forum like
Note: Questions go in Q&A Forum
If you are posting a Question Thread post it in the Q&A forum. Technical discussion of Android development and hacking. No noobs, please. Device-specific releases should go under the appropriate device forum...
forum.xda-developers.com
and the others. I've moved the thread to Android Q&A.
Thanks for your cooperation!
Regards
Oswald Boelcke
Senior Moderator
@Oswald Boelcke I wrote on dev forum after reading what you linked.. because I think it's a developing thing.. I'm talking about a solution to reach what I described by coding.. Not really a ckassic end-user question.
This involve coding skills, android developing skills, but obviously before I need to know if this can be done by a programmatically point of view.
Anyway.. If you think my post is better placed in Q&A, it's ok, it's just to explain.
blackhawk said:
I wouldn't but...
Redirect Notice
www.google.com
Google search: "android multi user,xda"
Or such.
Click to expand...
Click to collapse
I just done that, but what I found don't clarified so much my ideas.
What I found point me in a direction but it's not all clear to me.
Probably due to no experience of android developing.
extreme79 said:
I just done that, but what I found don't clarified so much my ideas.
What I found point me in a direction but it's not all clear to me.
Probably due to no experience of android developing.
Click to expand...
Click to collapse
It's doable but it complicates setup. I try to keep things as simple as usability allows... the KISS principal. Even in Windows I never used this feature... security be damned
Look around as there are other write ups on it that I've seen in the past. It's a lesser known feature of Android. Samsung may be a easier platform to do it with. Would setting up a Work account with Knox do it? I don't know... also search the Samsung forum.
extreme79 said:
@Oswald Boelcke I wrote on dev forum after reading what you linked.. because I think it's a developing thing.. I'm talking about a solution to reach what I described by coding.. Not really a ckassic end-user question.
This involve coding skills, android developing skills, but obviously before I need to know if this can be done by a programmatically point of view.
Anyway.. If you think my post is better placed in Q&A, it's ok, it's just to explain.
Click to expand...
Click to collapse
Good morning, Sir.
Please believe me I was thinking a real long time if I should move the thread or not. But then your below quoted statement was the decisive factor. Please refer to the subtitleof the former forum:
Android Software/Hacking General [Developers Only]
Technical discussion of Android development and hacking. No noobs please. Device-specific releases should go under appropriate device forum.
forum.xda-developers.com
extreme79 said:
I've experience in coding but totally new to android development, I never wrote a single line of code for our green robot.
Click to expand...
Click to collapse

Using distcc with AOSP building process

Hey everybody, I hope you're having a nice day. I've wanted to run the build process of AOSP and split the compiling tasks into multiple machines since my Pentium and 12 GBs of RAM can't make it. I know about distcc and how it's made precisely for this, distributed cloud computing, but I have no clue as to how I'm supposed to use it with Android's building steps, or if it's even possible to begin with. I'd appreciate any hints, clues, or maybe even solutions to this issue, thanks a lot!
realized this might not be the place to ask this, asking a mod to lock/delete the thread
cacti3866 said:
Hey everybody, I hope you're having a nice day. I've wanted to run the build process of AOSP and split the compiling tasks into multiple machines since my Pentium and 12 GBs of RAM can't make it. I know about distcc and how it's made precisely for this, distributed cloud computing, but I have no clue as to how I'm supposed to use it with Android's building steps, or if it's even possible to begin with. I'd appreciate any hints, clues, or maybe even solutions to this issue, thanks a lot!
Click to expand...
Click to collapse
Hello and good afternoon, @cacti3866
Welcome to XDA. I hope you'll always find and get the support you require.
However, prior to your next posting please read the guidances that are stuck on top of every forum like
[ATTN] : Read before posting - Any questions posted here will be MOVED or CLOSED
Please read the below before posting. Any questions not development related will be moved or closed. Forum Searching | Posting | The Basics: (Make sure you've read them before starting a new thread) Forum Rules Forum Search Google Forum...
forum.xda-developers.com
and the others. I've moved the thread to Android Q&A.
Thanks for your cooperation!
Regards
Oswald Boelcke
Senior Moderator

Custom firmware on cheap android tablet (YC-83p)

I'm not sure if this is the right topic for it.
But I was wondering if I could change the firmware on a cheap (YC-83p) tab.
Got it as a welcome gift from a course I got started. So don't have anny reasons to compain at all.
It doesn't has the greatest specs but it handles some basic stuff pretty well. So it's actually decent for bringing along on vacation or use it as a Home Assisstant controll tab.
It's actually this tab with slightly improved specs. (2GB of RAM instead of 1GB etc.):
Portable 8 inch Android 10 WiFi Tablet - YC-83T | Portworld Manufacturer
2021 New Arrival Portable 8 inch Quad-Core Processor Vertical Display 800*1280 IPS Screen Gms Android 10 1G+16G Android WiFi Tablet
portworld-solu.com
It's actually just fine as it is. But it seems it has some custom firmware onit, at least showing a custom bootscreen of the instution of the course. And I would like to change it if possible.
I searched the internet, but there's actually not much to be found.
So my question is if someone knows how to reflash this kind of devices, or at least change the bootscreen? I would prefer the first option if possible.
Thanks in advance!
edit:
It's running Android (Go edition) 11 btw.
Rockel said:
So my question is if someone knows how to reflash this kind of devices, or at least change the bootscreen? I would prefer the first option if possible.
Click to expand...
Click to collapse
Hello and good afternoon, @Rockel
Welcome to XDA. I hope you'll always get the support you require.
However, prior to your next posting please read the guidances that are stuck on top of every forum like
Note: Questions go in Q&A Forum
If you are posting a Question Thread post it in the Q&A forum. Technical discussion of Android development and hacking. No noobs, please. Device-specific releases should go under the appropriate device forum...
forum.xda-developers.com
and the others. I've moved your thread to Android Q&A.
Thanks for your cooperation!
Regards
Oswald Boelcke
Senior Moderator
Oswald Boelcke said:
Hello and good afternoon, @Rockel
Welcome to XDA. I hope you'll always get the support you require.
However, prior to your next posting please read the guidances that are stuck on top of every forum like
Note: Questions go in Q&A Forum
If you are posting a Question Thread post it in the Q&A forum. Technical discussion of Android development and hacking. No noobs, please. Device-specific releases should go under the appropriate device forum...
forum.xda-developers.com
and the others. I've moved your thread to Android Q&A.
Thanks for your cooperation!
Regards
Oswald Boelcke
Senior Moderator
Click to expand...
Click to collapse
Oh thanks! I already thought it was the incorrect toppic. But it was the best option I could find at the moment.
Totally missed this Android Q&A somehow
Rockel said:
I'm not sure if this is the right topic for it.
But I was wondering if I could change the firmware on a cheap (YC-83p) tab.
Got it as a welcome gift from a course I got started. So don't have anny reasons to compain at all.
It doesn't has the greatest specs but it handles some basic stuff pretty well. So it's actually decent for bringing along on vacation or use it as a Home Assisstant controll tab.
It's actually this tab with slightly improved specs. (2GB of RAM instead of 1GB etc.):
Portable 8 inch Android 10 WiFi Tablet - YC-83T | Portworld Manufacturer
2021 New Arrival Portable 8 inch Quad-Core Processor Vertical Display 800*1280 IPS Screen Gms Android 10 1G+16G Android WiFi Tablet
portworld-solu.com
It's actually just fine as it is. But it seems it has some custom firmware onit, at least showing a custom bootscreen of the instution of the course. And I would like to change it if possible.
I searched the internet, but there's actually not much to be found.
So my question is if someone knows how to reflash this kind of devices, or at least change the bootscreen? I would prefer the first option if possible.
Thanks in advance!
edit:
It's running Android (Go edition) 11 btw.
Click to expand...
Click to collapse
if you are on a rooted device, try this: https://play.google.com/store/apps/details?id=com.jrummy.apps.boot.animations&hl=en_US&gl=US
$cronos_ said:
if you are on a rooted device, try this: https://play.google.com/store/apps/details?id=com.jrummy.apps.boot.animations&hl=en_US&gl=US
Click to expand...
Click to collapse
Thanks, but I actually don't think it's rooted. Didn't cheked it yet though.
Actually looked for a way to root it, then it would be easier to put custom firmware on it I guess. But there's just verry little to completely nothing to be found of this tablet.
But I asume there must be a way sinse this institution was also able to customize some things.
Some questions:
How locked down is the tablet? Can you access gms services? Can you freely install apks? Are there developer options in settings and does it have the OEM unlock toggle?
Try to install adia64 and 7-zip. What is the processor? If it is mtk, you might be able to temp root your device.
Reviving this as I got this tablet as well and looking for possibilities.
I have posted here about my progress https://forum.xda-developers.com/t/can-we-root-this-tablet.4560407/page-2#post-88355463
Tablet is pretty generic but I don't seem to find any resource about it. Any ideas?

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