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Hi all,
i want to start with AOSP 4.2 for our SGS3 i9300 - is anybody interested to develop and publish a AOSP based rom with me?
I'm a real application developer (C,C++,JAVA,PHP,MySQL,some Oracle PLSQL) and now its some cold out - i have time to do
some nice things
I think a team of 2 or 3 developers should be enough to develop on this rom, as we can use a lot from AOSP 4.1.2
### EDIT
As long as no one has found to help, here a short description of current progress:
- Code is pure based on AOSP 4.2 but some snippets of CyanogenMod to bring up hardware (camera,graphics,audio)
- Device is bootable (no other boot.img required anymore)
- Bootanimation is working
- Mount of partitions is working
- Deodexing is working
- adb, debuggerd and root access is working
Not working: a lot
- Graphic not working perfect, needs a kernel patch or a working gralloc/hwcomposer/hwconverter to work without laggy PMEM)
- Camera can not be activated due to a missing function call (undefined reference, maybe it can be solved with a newer driver)
- Audio: missing speaker device (Code have to reworked to work with stagefright and tinyalsa libs)
- USB/internal SDCard: cant be mounted (error message sounds like the device is mounted twice, have to find the error in init process)
- RIL not working (Java file from CM10 have to be integrated in frameworks/opt/telephony)
Currently, i'm working on the Graphic problem and USB part to bring up the device to a stable UI
Way to go man. Good luck to you!
Good luck ...!! Im waiting
Sent from my GT-I9300 using xda premium
Good evening,
Well how have you imagined that? Do you have build something like that before or would this be your first attempts to build up a rom from scratch? Do you know what's all necessary to contribute for that?
I would try to help you, but I have clearly to say that I haven't done anything like this before. I'm in the last term of my study of technical computer sciences, working in a company as application programmer for C/C++ and Java(Android). Due to my studies I have also some knowledge about hardware programming, down to read/writing some code in assembler. I would be interested to this if I get introduced to the topic and some help with the necessary tool chain wouldn't hurt too ^^.
greetings
hop3l3ss1990 said:
Good evening,
Well how have you imagined that? Do you have build something like that before or would this be your first attempts to build up a rom from scratch? Do you know what's all necessary to contribute for that?
I would try to help you, but I have clearly to say that I haven't done anything like this before. I'm in the last term of my study of technical computer sciences, working in a company as application programmer for C/C++ and Java(Android). Due to my studies I have also some knowledge about hardware programming, down to read/writing some code in assembler. I would be interested to this if I get introduced to the topic and some help with the necessary tool chain wouldn't hurt too ^^.
greetings
Click to expand...
Click to collapse
I have successfully built a rom in year 2010 for the LG-P500 device, based on CM7 and modified it in a strange way, so i included a lot of nice things
written from scratch - this rom was a unicate ... later, i developed the "Phoenix Launcher" for Gingerbread enabled devices, but its development is currently
frozen because its strange to support every or almost every device with a bugless launcher. In the last months i learned a lot about android and have to re-think about
what i'm able to do, and what i want to do. In the summer of 2011 i bought my SGS3, the first thing i was doing was to remove that samsung crap from my device and
have installed AOKP. So now it's time to do my own thing again - i want to have AOSP as i think for me its the best Android solution for myself and want to publish it
to other users who think "thats ok for me" too
In short, it doesnt matter if its your first rom - its enough if you know about basic things like "how is android doing all that nice things", "how to debug code", "how to fix
some bugs (even strange bugs)" and some experience with git and github. All other you can learn in a very short time - i've learned the most of things with try & error
andy572 said:
I have successfully built a rom in year 2010 for the LG-P500 device, based on CM7 and modified it in a strange way, so i included a lot of nice things
written from scratch - this rom was a unicate ... later, i developed the "Phoenix Launcher" for Gingerbread enabled devices, but its development is currently
frozen because its strange to support every or almost every device with a bugless launcher. In the last months i learned a lot about android and have to re-think about
what i'm able to do, and what i want to do. In the summer of 2011 i bought my SGS3, the first thing i was doing was to remove that samsung crap from my device and
have installed AOKP. So now it's time to do my own thing again - i want to have AOSP as i think for me its the best Android solution for myself and want to publish it
to other users who think "thats ok for me" too
In short, it doesnt matter if its your first rom - its enough if you know about basic things like "how is android doing all that nice things", "how to debug code", "how to fix
some bugs (even strange bugs)" and some experience with git and github. All other you can learn in a very short time - i've learned the most of things with try & error
Click to expand...
Click to collapse
This all sounds interesting for me and yes I like the idea of developing a own clean rom with some cool additional stuff, too. But what would be the first steps to a new rom? Have you begun with all the administration stuff like setting up a new gitrepo, make a to do list etc...?
I think Code debugging and writing some new stuff wouldn't be a problem for me but what are you meaning excactly with "how is android doing all that nice things"? How it build up, deep level architecture? Well, I know how the "normal" Linux system is working, how modules are getting loaded into the kernel... But how this is correctly working on android I have to learn at first and if there is a chance to do that I would do it
Currently on my S3 is SlimBean and till that there is still no update to 4.2 I'm happy with it, but exploring something new would be pretty cool
Do you have an IRC chat room or something like that? I've to go offline now, my girlfriend wants more attention.^^ But If you want, I' m willing to try to contribute to the rom
PS. I'm sorry for my bad English and hope its understandable, but outside from here you can talk to me in German ^^
If you want to help the AOSP experience on our phones the best place to do it is with the CyanogenMod guys. You'll find pretty much everything based on AOSP (including people that port Vanilla AOSP and AOKP) is using a CM kernel.
They're likely working on the merge now in terms of getting CM10.1 out (with Android 4.2) but most of our CM guys are pretty burned out on working with Samsung's subpar reference material to get basic stuff working (mostly HWC). If you think you could help with this, this would be provide a massive boost to the whole community that want to run these phones on an AOSP based ROM and they would be very grateful.
Gotta warn you though it sounds like it'll be an uphill struggle to get the rest of the stuff working right; unless Samsung release some decent sources for HWC.
Currently i have only downloaded the AOSP sources and started to integrate most of the configs. Currently it cant compile because AOSP is not AOKP/CM10
where i got the device and vendor directories, so i have to make some changes in the basic system. if it's compiling to the end, i open a fresh github account
and upload all my modifications. The compile process stops currently on audio,OMX plugins, graphics and camera - most of that are small pieces of changes
i have to make - i think, tomorrow (its monday in germany here) i can upload all and then we can start to develop on
andy572 said:
Currently i have only downloaded the AOSP sources and started to integrate most of the configs. Currently it cant compile because AOSP is not AOKP/CM10
where i got the device and vendor directories, so i have to make some changes in the basic system. if it's compiling to the end, i open a fresh github account
and upload all my modifications. The compile process stops currently on audio,OMX plugins, graphics and camera - most of that are small pieces of changes
i have to make - i think, tomorrow (its monday in germany here) i can upload all and then we can start to develop on
Click to expand...
Click to collapse
Wish i could help (just started learning JAVA ) ! gl with this awesome project
Nice to see you here, I remember you from the P500 forums.
Xda user krarvind should be able to give you some useful hints, you will have to contact him through the RD forum as his pm is locked down, or I could possibly put him in contact with you
slaphead20 said:
Xda user krarvind should be able to give you some useful hints, you will have to contact him through the RD forum as his pm is locked down, or I could possibly put him in contact with you
Click to expand...
Click to collapse
Thank you, it would be nice if you can contact him
andy572 said:
Thank you, it would be nice if you can contact him
Click to expand...
Click to collapse
Ok, will mention it to him
andy572 said:
Currently i have only downloaded the AOSP sources and started to integrate most of the configs. Currently it cant compile because AOSP is not AOKP/CM10
where i got the device and vendor directories, so i have to make some changes in the basic system. if it's compiling to the end, i open a fresh github account
and upload all my modifications. The compile process stops currently on audio,OMX plugins, graphics and camera - most of that are small pieces of changes
i have to make - i think, tomorrow (its monday in germany here) i can upload all and then we can start to develop on
Click to expand...
Click to collapse
How it's going forward?
Maybe it could be useful to publish the github link when it's ready and some more information like staus, on first post
In the next days I have some trouble with my exams ( in two weeks I'm completely finished with my studies ^^) but I think if there is something to do I'll find some time to work on.
Good Luck Dude~
I haven't tried AOSP yet.
Hope someday i can give it a go.:silly:
hop3l3ss1990 said:
How it's going forward?
Maybe it could be useful to publish the github link when it's ready and some more information like staus, on first post
In the next days I have some trouble with my exams ( in two weeks I'm completely finished with my studies ^^) but I think if there is something to do I'll find some time to work on.
Click to expand...
Click to collapse
current state:
- patched android/build so we can compile the kernel within the main compile process
- patched android/build main.mk file so we can use OpenJDK or Oracle JDK
- added android/vendor/aokp and android/vendor/samsung tree from AOKP (its the most useful directory structure)
- added android/hardware from AOKP so we have all that Exynos things that are needed, even by AOSP
- modified android/frameworks/native/include so a OMX Plugin header can be found
- modified android/libhardware and patched gralloc module
currently it compiles to the Webkit library, most of all apps, libs and binaries are building without errors - the next problem
to solve is the PRODUCT_COPY_FILES ****: nothing of proprietary files are copied to the android/out directory, seems like
a bug in android/build too.
For only 2 days trying to compile to the end without errors its a very good cut
here we go: it compiles to the end and a flashable "JOP40" zip could be created
tryed to flash, but it gives errors in CWM: have to remove the recovery folder and the recovery.sh file from etc folder in the ota zip file, but it doesnt boot up - got a black screen only.
do we need a new or patched kernel instead the CM10 smdk421x one?
Well does it have all the closed source libraries fron the phone? If not, it wont boot. Dont think i am calling you stupid, you obviously know what you are doing, but maybe you forgot. Idk. Check that. Try running a log cat and debug that.
Sent from my GT-I9300 using xda premium
b-eock said:
Well does it have all the closed source libraries fron the phone? If not, it wont boot. Dont think i am calling you stupid, you obviously know what you are doing, but maybe you forgot. Idk. Check that. Try running a log cat and debug that.
Sent from my GT-I9300 using xda premium
Click to expand...
Click to collapse
Thanks for the hint, yes i have all files included - i cant connect to adb, i see only small colored point on the top left side and a sensor
is red blinking (the one to the right of the speaker.
That would be the proximity sensor near the top front speaker. Cant connect, adb binary in /system/bin or xbin?
Sent from my GT-I9300 using xda premium
Hello all,
I'm trying hard to figure out how one goes about compiling Android JB AOSP (4.1.2_r2.1) platform for the samsung galaxy s2 (GT-I9100M), with the source code that samsung gives you?
I've setup ubuntu 14, and I see how I can run . build/envsetup.sh, and then lunch.
I get all the options to build, and I see where the saumsung scripts are located, in device/samsung.
I've downloaded the open source file GT-I9100M_BMC_JB_Opensource.zip, and compiled the Kernel.
Now its time to build the platform. I see the folder structure, but I see no instructions.
When I unzip the Platform, I see build, external, vendor, and device, which has the folder "smdk_common".
If I put all files in the corisponding locations within the AOSP, I get errors, as there's only a folder "alsa-lib". (sound drivers).
And if I were to compare what's in here to whats in the AOSP device/samsung folders, there's lots more info.
Do I need to copy files from the default AOSP device/samsung folders and modify to suite my needs or?
Can anyone point me to how-tos? I've been trying to figure this out for days!
I see a lot of how tos on building with existing ROMS, and using kitchen, etc.
But I just want to build samsung from scratch FIRST...
OK, so doing a lot more research, both here and google, I obviously need to create a device tree OFF of the files that samsung has released to everyone. Surely someone has done this already?
I see there are a few GIT repositories that have device trees, but they are based upon existing files, etc.
I'm looking to find a device tree that has all the basics, OR a "template" one i can try and work with samsungs...
technobuddha said:
OK, so doing a lot more research, both here and google, I obviously need to create a device tree OFF of the files that samsung has released to everyone. Surely someone has done this already?
I see there are a few GIT repositories that have device trees, but they are based upon existing files, etc.
I'm looking to find a device tree that has all the basics, OR a "template" one i can try and work with samsungs...
Click to expand...
Click to collapse
Hi,
did you succeeded in your approach to build a device tree with the Samsung-opensource-files? if yes then I'll be very interested in the way you do it as I'm on the same status for a Samsung device which has absolutely no support in the hole internet (except one thread here in XDA
BR
SP
No I didn't.
and I got no help what so ever from the people here at xda-developers.
I even approached some of the people who compile the roms, and got no response from them.
I suspect the only help you'll ever get from these forums is if you ask for help from EXISTING roms,
or you're an "existing" developer that has years of experience.
this place is not for new developers at all.
a lot of brown nosing going on here..
good luck in your search!
SolarPlexus said:
Hi,
did you succeeded in your approach to build a device tree with the Samsung-opensource-files? if yes then I'll be very interested in the way you do it as I'm on the same status for a Samsung device which has absolutely no support in the hole internet (except one thread here in XDA
BR
SP
Click to expand...
Click to collapse
technobuddha said:
No I didn't.
and I got no help what so ever from the people here at xda-developers.
I even approached some of the people who compile the roms, and got no response from them.
I suspect the only help you'll ever get from these forums is if you ask for help from EXISTING roms,
or you're an "existing" developer that has years of experience.
this place is not for new developers at all.
a lot of brown nosing going on here..
good luck in your search!
Click to expand...
Click to collapse
OK, thanks for your response. Thats also my experiance more ore less I have found (with some exceptions which really try to help).
So I'll try to work on it, and if I succseed, I'll make a guide... maybe it will help then others
BR
SP
what phone is it?
and yea, if you need any help,just ask me.
SolarPlexus said:
OK, thanks for your response. Thats also my experiance more ore less I have found (with some exceptions which really try to help).
So I'll try to work on it, and if I succseed, I'll make a guide... maybe it will help then others
BR
SP
Click to expand...
Click to collapse
Its the Samsung sg-i8200 (s3 mini value edition)
The previous phone was supported very well (i8190) but the i8200 has a complete new hardwarebase and its really garbage...
send with my Oneplus One (bacon) SlimKat Tapatalk
NEED HELP
Hello guys, I'm working on a generic tree for our beloved device Honor 7, but not getting enough success, so each and every of you are invited to help me create a new device tree for AOSP 5.1 ROM or CM 12.1, so that we can taste the Stock Android too.
The benefits of these ROMs are that the device will get more fast and stable as there will be minimum apps and bloatwares installed.
So, it is a humble request, that whosoever have any knowledge about creating a tree from scratch please help me.
I have created a skeleton of the tree but it is not a success too as there are many things we still have to consider.
@sminki and @kenshiwara, we will setup an organization on GitHub so everyone can contribute there only.
Hi,
It will be wonderfull to have CM on our honor7.
Sorry mate. You haven't seen my troubles over the last few weeks then
After my H7 'died', I got a warranty replacement phone, and unlocking was proving impossible, each day was bringing more frustration and anger so i've sold it!
That's it, i'm out of the "honor" business for good (hence the "unsupported" bit on the recovery and kernel threads), but as a parting "gift", here's a few things that may help "the cause".
Sorry, the length of this post got out of control! :silly:
device tree starting point:
https://github.com/TeamWin/android_device_huawei_p8 - it's similar enough, that with a little editing and boom, we had our recovery*
https://github.com/debbiche/android_device_huawei_p8 - another fuller "tree" (wip), again the p8 is similar enough to use as a base
https://github.com/Gibbon99/android_device_huawei_hwgemini - mediapad x2 - another kirin
if you're insane, you could get the dtb files (iirc - i got these from compiling the source) and decompile, but this contains EVERYTHING, theses files are huge, many hundred kb and would take days to get the info out you need (if there is any!)
cm
have a look at codeworkx H6 git, it's the closest device you'll find that has CM actually running on it, albeit CM11 (and abandoned!)
https://github.com/codeworkx/proprietary_vendor_huawei
https://github.com/codeworkx/android_device_huawei_h60-common
other things:
osm0sis' kitchen out of the many boot image unpack/repack tools, this worked the best with huawei boot/recovery images
* with this in mind, anyone running Linux can pull apart my recovery, fix the issues in default.prop, add extra partitions to fstab and repack it. then post it for everyone else to use.
with the sh!tty way fastboot is on these phones, and the way modem binaries get patched, you're going to have to look for a way to write these in recovery (scripted with dd i imagine) so that everyone can use without having the ballache that is B100,B121,B140 etc etc to get to a version that will work with your ROM. this for me is where it's all going to hurt! (and end with bricks!)
final thing - the kernel source is terrible, it is so far removed from AOSP that simple things that you could normally just drop in, like cpu governors won't work. unless you really know C++ and how to debug it's gonna be near stock (like mine funnily enough!)
Good luck chaps :good: it's gonna be a hell of a ride!
sminki said:
Sorry mate. You haven't seen my troubles over the last few weeks then
After my H7 'died', I got a warranty replacement phone, and unlocking was proving impossible, each day was bringing more frustration and anger so i've sold it!
That's it, i'm out of the "honor" business for good (hence the "unsupported" bit on the recovery and kernel threads), but as a parting "gift", here's a few things that may help "the cause".
Sorry, the length of this post got out of control! :silly:
device tree starting point:
https://github.com/TeamWin/android_device_huawei_p8 - it's similar enough, that with a little editing and boom, we had our recovery*
https://github.com/debbiche/android_device_huawei_p8 - another fuller "tree" (wip), again the p8 is similar enough to use as a base
https://github.com/Gibbon99/android_device_huawei_hwgemini - mediapad x2 - another kirin
if you're insane, you could get the dtb files (iirc - i got these from compiling the source) and decompile, but this contains EVERYTHING, theses files are huge, many hundred kb and would take days to get the info out you need (if there is any!)
cm
have a look at codeworkx H6 git, it's the closest device you'll find that has CM actually running on it, albeit CM11 (and abandoned!)
https://github.com/codeworkx/proprietary_vendor_huawei
https://github.com/codeworkx/android_device_huawei_h60-common
other things:
osm0sis' kitchen out of the many boot image unpack/repack tools, this worked the best with huawei boot/recovery images
* with this in mind, anyone running Linux can pull apart my recovery, fix the issues in default.prop, add extra partitions to fstab and repack it. then post it for everyone else to use.
with the sh!tty way fastboot is on these phones, and the way modem binaries get patched, you're going to have to look for a way to write these in recovery (scripted with dd i imagine) so that everyone can use without having the ballache that is B100,B121,B140 etc etc to get to a version that will work with your ROM. this for me is where it's all going to hurt! (and end with bricks!)
final thing - the kernel source is terrible, it is so far removed from AOSP that simple things that you could normally just drop in, like cpu governors won't work. unless you really know C++ and how to debug it's gonna be near stock (like mine funnily enough!)
Good luck chaps :good: it's gonna be a hell of a ride!
Click to expand...
Click to collapse
Thanks, this will help enough and I was not aware of your troubles
I got a device tree working with CM12.1 and USB debugging, but Mali was a showstopper. Now I'm fighting with CM13 instead... Generally, the B313 ROM is far less hacky, but we lose the open source kernel for a while until they release one.
I will set up a GitHub tree with what I have when I get CM13 compiling again, however keep in mind that you need to patch the boot.img manually to use the closed-source B313 kernel until Huawei releases the source for that, which probably won't happen at the very least until it's fully in OTA. I'd love some help from someone who is more experienced, especially with the Mali drivers which are the worst of pains.
EDIT: I got CM13 compiling again. Let's hope for the best.
EDIT2: Mali works! Sadly, that currently depends on Huawei's libgui.so which brings in a huge chunk of Huawei's patched libraries - otherwise, it segfaults in strange places. Any ideas?
Is there any whatsapp group of honor 7.I want to join it.
udayraj99 said:
Is there any whatsapp group of honor 7.I want to join it.
Click to expand...
Click to collapse
Stop spamming
Omg I think I will never receive a Custom ROM for PLK-UL00 as they didn't release source code for that and device tree is way far
Mee too
omkarpranavxxx said:
Omg I think I will never receive a Custom ROM for PLK-UL00 as they didn't release source code for that and device tree is way far
Click to expand...
Click to collapse
As an indian user evwn i feel i made wrong choice....should have gone for one plus x
asiekierka said:
I got a device tree working with CM12.1 and USB debugging, but Mali was a showstopper. Now I'm fighting with CM13 instead... Generally, the B313 ROM is far less hacky, but we lose the open source kernel for a while until they release one.
I will set up a GitHub tree with what I have when I get CM13 compiling again, however keep in mind that you need to patch the boot.img manually to use the closed-source B313 kernel until Huawei releases the source for that, which probably won't happen at the very least until it's fully in OTA. I'd love some help from someone who is more experienced, especially with the Mali drivers which are the worst of pains.
EDIT: I got CM13 compiling again. Let's hope for the best.
EDIT2: Mali works! Sadly, that currently depends on Huawei's libgui.so which brings in a huge chunk of Huawei's patched libraries - otherwise, it segfaults in strange places. Any ideas?
Click to expand...
Click to collapse
Hello, did any of the CM compiled fully to be a flashable zip? if yes, then have you flashed it and took logcat?
Nishadan said:
As an indian user evwn i feel i made wrong choice....should have gone for one plus x
Click to expand...
Click to collapse
Yup lesson learnt snapdragon or nothing frm now on
maybe you know
I post link - http://download-c.huawei.com/downlo...oadId=62086&version=204465&siteCode=worldwide
Honor 7 Open Source（PLK-L01_Android5_0_2_EMUI3_1_kernel_EN)
Any progress?
I hope I can do something,it is nice to see cm for honor 7.
Since it has been a while that any Info came out of this thread I have to ask.. Is anyone still working the tree?
I normaly do not ask for etas but in this case it would be useful if the thread is abandoned that we could know the reasons and Problems so maybe someone else could join in with a different approach
cycovision said:
Since it has been a while that any Info came out of this thread I have to ask.. Is anyone still working the tree?
I normaly do not ask for etas but in this case it would be useful if the thread is abandoned that we could know the reasons and Problems so maybe someone else could join in with a different approach
Click to expand...
Click to collapse
I'm a bit busy to continue my work on the tree, but after my exams I will continue to work on tree with Android 6.0 source. Hope it goes well.
DigiGoon said:
I'm a bit busy to continue my work on the tree, but after my exams I will continue to work on tree with Android 6.0 source. Hope it goes well.
Click to expand...
Click to collapse
good luck with your exams
Until then you can use this
New ROM for Honor 7 PLK-L01.
DigiGoon said:
Until then you can use this
New ROM for Honor 7 PLK-L01.
Click to expand...
Click to collapse
Can we get a kitkat rom if your work with the device tree is done ? I really do miss kitkat[emoji20]
Sent from my PLK-TL01H using XDA-Developers mobile app
muhammad Shohayeb said:
Can we get a kitkat rom if your work with the device tree is done ? I really do miss kitkat[emoji20]
Sent from my PLK-TL01H using XDA-Developers mobile app
Click to expand...
Click to collapse
I will be developing AOSP 6.0, if others can give it a try then maybe we can get it.
Anyone here can u tell me how to create source code of a new device as my device is INFOCUS M680, kernel source.
I have used another device as same board to create source of my device but the kernel source is different. So anyone can tell me how to create kernel source and device tree.
My kernel version is 3.18.19+
Find the open sources for your device and download them. You need to match the build number from that release to the build number for the AOSP sources and download those as well. I have only done Samsung so far but the instructions are fairly clear for merging the sources. Next you need hardware drivers, in my case I have tons of free drive space so I just copied the entire /etc and /vendor from my device firmware.
A lot of time can be saved by downloading a matching sources from a custom rom. You can take configuration files and etc.
No open sources and no custom roms? You should start on something easier my friend. But if you want to continue forward with that I am guessing here. Unpack the boot.img and recovery.img files with the available unpackers. (save the info for the images and follow how to repack carefully) Match your build number to the AOSP sources and get the kernel. Modify, hack, gather and assemble what you need to make a new boot.img and recovery.img. Then with great courage comes lots of bricked devices..
Late reply so I didn't try to hard there. I will always help people send me a PM if your stuck
droidvoider said:
Find the open sources for your device and download them. You need to match the build number from that release to the build number for the AOSP sources and download those as well. I have only done Samsung so far but the instructions are fairly clear for merging the sources. Next you need hardware drivers, in my case I have tons of free drive space so I just copied the entire /etc and /vendor from my device firmware.
A lot of time can be saved by downloading a matching sources from a custom rom. You can take configuration files and etc.
No open sources and no custom roms? You should start on something easier my friend. But if you want to continue forward with that I am guessing here. Unpack the boot.img and recovery.img files with the available unpackers. (save the info for the images and follow how to repack carefully) Match your build number to the AOSP sources and get the kernel. Modify, hack, gather and assemble what you need to make a new boot.img and recovery.img. Then with great courage comes lots of bricked devices..
Late reply so I didn't try to hard there. I will always help people send me a PM if your stuck
Click to expand...
Click to collapse
Thanks for your reply.
I am planning to create a custom rom for my samsung tab A Sm-P555
Where do I start ? Is there AOSP for it ? How do I unpack everything ? Could you help me as I was very new to this ?
Many thanks in advance.
all you need is here
droidvoider said:
Find the open sources for your device and download them. You need to match the build number from that release to the build number for the AOSP sources and download those as well. I have only done Samsung so far but the instructions are fairly clear for merging the sources. Next you need hardware drivers, in my case I have tons of free drive space so I just copied the entire /etc and /vendor from my device firmware.
A lot of time can be saved by downloading a matching sources from a custom rom. You can take configuration files and etc.
No open sources and no custom roms? You should start on something easier my friend. But if you want to continue forward with that I am guessing here. Unpack the boot.img and recovery.img files with the available unpackers. (save the info for the images and follow how to repack carefully) Match your build number to the AOSP sources and get the kernel. Modify, hack, gather and assemble what you need to make a new boot.img and recovery.img. Then with great courage comes lots of bricked devices..
Late reply so I didn't try to hard there. I will always help people send me a PM if your stuck
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Hola
Perdón pero estoy sufriendo errores con la app XDA labs
Thank you
I am completely new to Android Engineering and want to learn it. Till now, I have tried building aosp oreo from repo. It is built successfully but I don't know about the use of all the folders that are downloaded by the repo. What is the use or importance of each folder in repo? Where can I learn more about this?
I have also modified my stock firmware (only removed some bloatware apps) and rebuilt the firmware. I haven't installed it yet. I used android kitchen which helped me with signing the zip but I am afraid the signature might be for testing and not the official vendor signature. I have phone with unlcoked bootloader but it's still on stock recovery. According to my knowledge, unlocking bootloader helps us to flash unofficial files but people at XDA say that we should also have custom recovery to flash custom ROMs. Should I flash the modified ROM built by me in device with stock ROM and unlocked bootloader?
My device doesn't have official TWRP support. How can I port recovery or build it from scratch for my phone?
Also, I have only modified stock ROM and need to learn porting ROMs like porting MIUI for my device. How can we port ROMs?
Sorry for asking all these at once but I tried getting answer one after another which confused me a lot. I am a noob in this field.
I read XDA thread of TWRP developer which included a guide on how to build TWRP for any device. But as the author said, that post wasn't for noobs. Maybe I need to learn a lot before I reach that level of understanding. But I don't know what to learn and from where. Please help..
And one last thing - What is a device tree? Or vendor tree? I saw these words many times when I was trying to understand the above things. But I still don't know what these are and Google doesn't help. Thank you everyone..
Hi
there is this section here https://forum.xda-developers.com/android/software
you`ll find some sticky threads of the top with plenty of info , have a look !
you may also use search and type XDA University , it will reveal also some useful links
Good luck !