yashsingh1/xdaforums huggingface dataset:
[Samsung Galaxy Exhibit 4G] cars1189:
Yes as Canodroid has stated most kernels get released within a week of the rom and only that rom is compatible. Now when i say compatible though doesnt mean others wont work but more that im not gonna even try to give support for anything else. Especially with recent changes theres more chance of issues mixing roms and kernels because the sensor code has been made open source and is now different and the closed source and open source drivers/libs are not interchangeable.

ALs o while im here just so you guys know im still here and ill be makeing a new build soon. It is my understanding that cyanogenmod is thinking that cm12.1 might be pushed to a more stable branch of their code within a week or two and i plan on making the next release then.(Or sometime soon within that time) Basically the plan is if its in a decent state to release a cm12.1 as soon as it comes. If it doesnt come within a week though ill go ahead and do a cm12 build.

Edit: Apparently im late lol sorry guys but looks like they have a cm12.1 branch now...ill get downloading that soon and get started testing.
[Samsung Galaxy Exhibit 4G] exhibit679:
Thanks!

That's great cars1189. I just flashed to the March 15th build and it is great -- seems faster, than the Jan builds and has nice interface tweaks. Looking forward to CM12.1. Thanks again for all your work.
[Samsung Galaxy Exhibit 4G] cars1189:
Just so you guys know ill probably make a cm12 build. The cm sources moved from staging/cm-12.1 to cm-12.1 but when i tried to compile it failed so unless it builds by the weekend ill probably do a cm12 in the mean time. When it builds though ill try and get it out asap.
[Samsung Galaxy Exhibit 4G] Kotetsukun:
Well I have switched to the ZTE Zinger, which is the same price as a family meal lol. It has dual core processor, and it is very smooth and fast. Best of all is Qualcomm Snapdragon .

I miss my old exhibit, but now I have a super fast device so I am saying goodbye to my T679. By the way the Zinger cannot be rooted but I had to replicate Lollipop with apps. Thank you so much for helping me out
[Samsung Galaxy Exhibit 4G] karaki93:
hey man thanks for your great hard work but cant u compile the kernel for the latest cm11 rom im still using it until cm12 become more stable.
[Samsung Galaxy Exhibit 4G] cars1189:
Sure ill do the whole thing rom + k^kernel update. Sorry 10.1 and 10.2 are eol but cm11 isnt ive just been busy/working on cm12 stuff. Im going to post a cm12 build here soon i already made it and have been testing/using it. And some time this week ill make a complete cm11 update.
[Samsung Galaxy Exhibit 4G] cars1189:
updates

OK so a few things, first, new CM11.0 and cm12.0 builds are up. These are both "OS2SD" aka use new the partitions. And from now on all builds will be marked in the post if they are OS2SD or not but not in the file name. This way they work when twrp looks for a MD5 file also the NON-OS2SD builds are basicly like EOL now. The kernels for both of these should be going up soon probabbly by monday at the lastest(est which this post was made on Saturday, so within the next 3 days)
[Samsung Galaxy Exhibit 4G] danny8:
Thank you for continuing work on the series of ROMs for this phone.

I'm thinking of upgrading my Exhibit to one of the newer OS2SD-only ROMs. It's my backup phone, so it isn't a do-or-die situation. (Sidebar: Moto G LTE dev for CM12 seems a bit stalled at the moment.) SlimROM on my Exhibit feels kind of sluggish lately, maybe it's just me.

I would like to know if one is able to switch back to a pre-OS2SD ROM using currently available tools. Is it possible?

Is it fair or reasonable to say that OS2SD conversion is a one-way trip? Or back conversion is hugely impractical? I guess I'm asking for your opinion.

Is OS2SD so nice that I won't desire to return? (Sincere question, not trying to pin down or be sarcastic.)

I realize a lot of work would be involved to convert partitions and re-install images. And I assume a PC would be necessary or hugely helpful. I just would like to know if you see unclearable hurdles

Thanks to anyone who reads this.
[Samsung Galaxy Exhibit 4G] cars1189:
First off OS2SD is really only needed for android 4.4+ based roms imo. As they have art and if you use art youll need more space. However for android 2.3-4.0 more space isnt as necessary imo.

Now converting back and forth is actually very easy. Everything is done all on phone pc is only needed to transfer the rom/recovery to the phone. All you need to do is make a backup of course. Then flash the corresponding recovery so OS2SD recovery for OS2SD rom non-OS2SD recovery for non-OS2SD rom. In that recovery wipe all the normal partitions cache, system, data...bla bla... Then flash the rom. Basically normal steps. Now if you want to go back do the same thing make a backup in the current recovery then flash the recovery you want that corresponds to the type of rom you want to switch to and do that same thing again.(wipe then flash) It is 100% like switching android versions except that after backup you need to change recovery to w.e. rom type your gonna flash next. Very simple very easy and 100% reversible either way your going.(normal-to-OS2SD or OS2SD-to-normal) And of course changing rom versions like 4.4 to 5.0 no recovery change is needed as long as they are of the same type.(Both OS2SD or Both "Normal" of course this is just an sample/example since there is no "Normal" 5.0)

Now if you converted the "/data" partition to F2FS which is supported but not used by default in the newer 4.4 and 5.0 builds then of course after backup and wipe you would need to format/convert "/data" back to ext4 or back to F2FS depending on which way your going .

I hope all that was clear and easy to follow. Basically its your normal steps with the added recovery switch depending on the ROM type you wanting to use flash it after the backup process.
[Samsung Galaxy Exhibit 4G] cars1189:
Ok guys one more update the custom kernels as i said i would make are compiling as im typing this now, so check back for those links soon. Also new CM12.1 ! is now released! As always thank you to all the normal dev with again saysing thanks to the [MENTION=5292938]DevConnection_Team[/MENTION] and [MENTION=4825437]Christopher83[/MENTION] for maintaining several repos needed for making things work. As i added in the post for CM12.1 Christopher83 noted on his "Blank mobile network signal icon, even if calls and data network are working" so keep that in mind but users that posted in his post have noted that it shows good perfomance over cm12.0 so maybe thats a good sign. And that hopefully in the future this one mobile network icon issue will be resolved. Remember the cyanogen team only recently merged 5.1 so given time im sure theres gonna be alot of improvement. Also note that i have not tested this my self as i need my phone pretty stable since its the only one i have. So big risk to those that test it for now but good luck and i hope its good!

Side note i have kind of reorganized the first few posts to make room for the CM12.1 post so i hope its not too confusing...and ill try to condense it some more/clean it up.
[Samsung Galaxy Exhibit 4G] danny8:
Yes, very clear thank you for all that. It sounds like something I can and will be doing. Thank you so much!

I was scratching around thinking there was something I could do with this phone to make it more usable/fun (but not necessarily faster, unless I can change the laws of physics, har). I'll be trying some new ROMs since your comments have given me more confidence.

Last month, as a lark, I went and reinstalled Peach Sunrise. I quickly realized that wasn't gonna be it, lol. :)

I've not bricked a phone yet, though my Nexus 7 battery is a goner.
[Samsung Galaxy Exhibit 4G] exhibit679:
Do you recommend using the new ^k Kernel (4-13-15) on CM12.1, or is only for the 4-10-15 CM12 release?

Thanks for all your work. Looking forward to playing with CM12.1 and latest CM12.
[Samsung Galaxy Exhibit 4G] cars1189:
It is made for CM12. So no i do not recommend it. All kernels are made with a ramdisk for a certain rom. And while they maybe the same its best not to try and mix.

Edit: Also if you guys try cm12.1 please post and logs with issues or screen shots of anything kool you find or just screen shots of it in use id like to know how its working for you!
[Samsung Galaxy Exhibit 4G] canodroid15:
I'm gonna wait for the 12.1 kernels to come out & I'll flash 12.1, I'm running 12.1 on my other devices & its pretty slick! Thanks for the builds man! I'm gonna run the new 12 build till then ;)
[Samsung Galaxy Exhibit 4G] exhibit679:
I tried the new (4-10-15) CM12 with the 4-13-15 ^K kernel and I kept getting crashes from google play services and gapps. I did both a dirty flash and clean install, but had the same issues. I'm guessing my device doesn't like being over clocked. I haven't tried the new release without the ^K kernel. The 3-15-15 release (no ^K kernel) works great for me. Anyone else seeing this?

Looking forward to trying CM12.1 soon.
[Samsung Galaxy Exhibit 4G] cars1189:
The 4-10 rom with 4-13 kernel works fine for me. Did you try the OC or the UV or exuv build? Also OC isnt happening by default so you could use the k^kernel with just OC no voltage change and just not change the frequency. That way you get the benifit of the various tweaks but without the crashes from OC'ing.
[Samsung Galaxy Exhibit 4G] canodroid15:
Bout to flash 12.1 & pico gapps, I'll report back shortly, was gonna wait for OC kernels but I'm curious how much 5.1 might make a difference over 5.0.x, ttys!
[Samsung Galaxy Exhibit 4G] canodroid15:
Hey guys, CM12.1 & pico gapps flashed successful! ;) Way smoother than 12! So far so good everything works even live display (which I love) live display let's us change the screen tint like Trinity colors for the S3 & saves battery! No where near the lag 12 had & I'd say its an easy dd. With an OC k^k kernel this thing would be balls to the walls! Awesome build [MENTION=1816400]cars1189[/MENTION], thank you! I'll be heading over to the Galaxy W thread to thank [MENTION=3044346]arco68[/MENTION] , [MENTION=4825437]Christopher83[/MENTION], [MENTION=5450821]sir mordred[/MENTION], [MENTION=528693]DevConection_Team[/MENTION] ! :D :thumbup: ?
[Samsung Galaxy Exhibit 4G] canodroid15:
OK so it been 24 hrs & its settled in & running great, the only complaint I have is every time I reboot or power cycle I get the "android is starting" "optimizing app 1 of 1" other than that all good! Just needs a little OC, UV, & a few kernel tweaks
[Samsung Galaxy Exhibit 4G] exhibit679:
OC Kernel

I did just the regular OC ^K kernel. I didn't enable OC (didn't realize you had to -- where is that setting?) , so I guess that argues it isn't the OCing then. What gapps did you use? I used once from August 2014 gapps mini (same I used on 3-15-15 flash). Anyone else having any issues? Maybe I should give it another shot.
[Samsung Galaxy Exhibit 4G] jacoghi:
Hey, cars, great to see your work again in this forum, man!

First of all, thanks for sharing these updates, I've been longing for an updated cm11 and here we are. I tried the build and it's working greatly, thanks once more! Regarding the custom Christopher k kernel, I don't have wifi in any version whatsoever. The exuv doesn't boot at all, whereas the other boot, but the WiFi never turns on. Can you confirm this issue with that kernel? I don't care about the oc, but would like to test the Tweaks. Thanks once more for your effort in bringing our devices up to date.
[Samsung Galaxy Exhibit 4G] cars1189:
Hello, and yes i can confirm it was a mistake by me. I accidently used and old updateer-script in the zip files that uses the old partitions. So you can look and notice that you have a lib/modules in your "/cache" those are the new ones that are supposed to be in /system/lib/modules. I apologize for this mistake and right before i read your post i just remade the zips with the proper updater-scrips and have uploaded the new zips. For anyone else reading this this i believe only affected the new CM11 kernels but if you have any issues check that and let me know if i missed one.
[Samsung Galaxy Exhibit 4G] cars1189:
By default all kernels ones with the rom and the K^Kernels and ADC kernels, all run at stock speed, so it not as much as OC is not enabled more that its just not being used. That is by default. So unless you changed the frequency in Settings>Performance>Processor>Maximum CPU frequency. The the kernel will act just like stock but with just tweaks enabled.
[Samsung Galaxy Exhibit 4G] canodroid15:
Any k^kernels for 12.1 in the making? A few of us are running it & its super stable! A little lag here & there but I'm pretty sure the new kernels wiil do wonders with it! Thanks man, loving 12.1!!
[Samsung Galaxy Exhibit 4G] jacoghi:
Thanks, cars, this new version works perfectly. Cm11 with this kernel is a great choice for our devices, if we accept on taking the battery hit. Of course, when compared to gingerbread. Otherwise, the match works perfectly and the performance is pretty good for a 1ghz single core processor. Thanks for all the effort you put into compiling this for us.
[Samsung Galaxy Exhibit 4G] cars1189:
Currently as far as i can tell the k^kernel source code for cm12 and cm12.1 are the same so if your feeling adventurous go ahead and try but my plan is to release one when [MENTION=4825437]Christopher83[/MENTION] releases a build for his device and he hasnt yet.

I will say that now that cyanogenmod has merged 5.1.1 ill be makeing another cm12.1 build soon.
[Samsung Galaxy Exhibit 4G] canodroid15:
No biggie, I was just curious::thumbup: fwiw I did try the latest k^kernel & it went well until the boot finished, it showed the lock screen for a second & rebooted so no go. Thanks, I can wait till then!
[Samsung Galaxy Exhibit 4G] cars1189:
cm12 update

Hey guys just wanted to let you know theres a new cm12 up. Also i was going to do a new cm12.1 update as well however it appears theres a compile issue with the CM sources. Once this gets straightened out ill make a new build.
[Samsung Galaxy Exhibit 4G] cars1189:
update

Hey guys new cm12 up, the "Optimizing apps" dialog on each boot should now be fixed and only run once. And few other small changes along with sync with CM source code.

Edit: Also im having issues compileing cm12.1 it worked that one time and since then i havnt been able to compile so not sure exactly whats happening but ill try and figure it out as soon as i can.
[Samsung Galaxy Exhibit 4G] swicago:
[MENTION=1816400]cars1189[/MENTION] thanks for keeping this phone alive.
[Samsung Galaxy Exhibit 4G] jacoghi:
Cars, thanks once more for the update, having an updated cm is just great!
[Samsung Galaxy Exhibit 4G] unmesh59:
I'm currently running TWRP 2.7.1.0 and cm11-2014-1031 on two phones and would like to try cm12 out on one of them. The instructions regarding OS2SD at the top of the thread have me confused, however.

Do I format onboard flash partitions with the existing TWRP before installing TWRP 2.8.5.0 OS2SD version on the phone or after? And does anything special have to be done to the microSD partitions too before installing the cm12 ROM?

Thanks.
[Samsung Galaxy Exhibit 4G] Andresakapaco04:
Hey i would like maybe some help....im on cm 11 and its kind of instable now i havenr updated since summer of 14...can any1 give me suggestion on wich is a good build and a good kernel for cm 11... cause my fone is been really lagy now....

also i been reading of updating to the OSDS2 and i want to try it but steps are kind of unclear to me ...could any1 please help me in a detailed form i dont want to mess it up...thnx btw for keeping up with this fone
[Samsung Galaxy Exhibit 4G] cars1189:
instructions

"2. You MUST Format /system, /data, /cache, and /sdcard0 in cwm/twrp.

3. Install the new CWM/TWRP"

The dirctions are in order...so yes...

No you dont have to do anything special to the microsd.

Which part is unclear, let me know because to me its 100% clear, but we dont all think the same way so let me know what part confuses you and i can try and revise that section.
[Samsung Galaxy Exhibit 4G] Andresakapaco04:
Okay the part that is unclear to me is after formating everything....how im i supose to flash the new twrp if i formated everything that would mean erasing the old twrp...like how im i supose to get bak on reovery mode if i formated everything??? Also im confused about the partitions.. im only used to normal flashing lol...please help...also i dont get what format really means does it mean doing a normal wipe in twrp?? The partiotions have me confused...do i have to go to settings in twrp and partition ext 4 ???
[Samsung Galaxy Exhibit 4G] unmesh59:
Thanks much!

I might wait to do this until you've been able to post the image that is sync'ed to 5.1.1

Added 5/29/2015: I decided to go ahead and use the posted 12.1 ROM on one of my two devices. Seems a little slower than cm11 and it looks like the "Optimizing app 1 of 1" on every reboot that is reported fixed on cm12 is not fixed in this version of 12.1. Unfortunately, the optimization takes a long time on this phone.
[Samsung Galaxy Exhibit 4G] Andresakapaco04:
I have a question a flashed 12.1 but my fone just stays on the cyonagen logo the little robot dude....it stays like dat 4 a while and wont past that...any suggestions also where i get the pico gapps
[Samsung Galaxy Exhibit 4G] unmesh59:
I pulled the battery and reinserted it to let the phone reboot successfully. Since the reboot took a long time, maybe waiting longer would have been sufficient.
[Samsung Galaxy Exhibit 4G] cars1189:
"Format /system, /data, /cache, and /sdcard0" from the instructions post....you dont format recovery...nor sd1...so you still have a recovery and still have all zips to flash roms and recoverys you want.

This is probabbly related to the optimizing 1 of 1 issue. The issue exists because the apps dont really fully compile as they should which makes all kinds of different problems.
[Samsung Galaxy Exhibit 4G] cars1189:
update

Hey guys i got CM12.1 to compile now so feel free to try it and let me know how it works. It has the same fix for the optimizing 1 of 1 issue and what not so let me know how it works. Ill also be trying to make K^Kernel builds soon since Christopher83 has made/released one so hopefully it works well.

Edit: Also if you are using a app that uses sensors you may want to consider using "stop log" its a app not on playstore though so careful finding it. However at least for me i saw Google Maps was a bit slow and i have found that with logs disabled while the maps isnt super fast(slow device will be slow) it does bring back(at least a little) some of the performance we saw pre-opensource sensors. This is the best solution i have till i can figure out how to fix the sensor code. In my testing disableing logs therefore eliminating the spam does show an increase in perfomance.

For those of you that are wondering more detail basicly theres two librarys that get used to control our sensors sensors.ancora_tmo.so and libakm.so. Basicly i open sourced sensors.ancora_tmo.so but not libakm. The issue is in stock sensors.ancora_tmo.so they made it so it doesnt update the akm sensor as often and therefore doesnt spam logcat as often hence why stock libsensor is better in that way. However doing that you get less responsiveness with the other sensors or at least they did. Im hopeing i can edit just the akm part to not update as often and solve our issue. Open sourceing the libakm is a bit more challenging and therefore not really an option. And at least as far as i can remeber with stock libs there was no logcat spam you guys can correct me on that if im wrong(please do so i can know if im on the right track).
[Samsung Galaxy Exhibit 4G] cars1189:
Hey guys just a quick update found a option for the libakm situation. While i havnt been able to open source it i found another device that uses the same source code/lib so its the same file basicly but samsung actually got rid of the logcat spam. So...here you go https://www.androidfilehost.com/?fid=23991606952614316 . Feel free to try it and let me know if you notice any difference or w.e. i tried it and it seems so help at least a little.
[Samsung Galaxy Exhibit 4G] unmesh59:
Phone seems to be more responsive but can't get WiFi to work with latest cm12.1 and libakm. And it rebooted after 15 minutes or so at the home screen.
[Samsung Galaxy Exhibit 4G] canodroid15:
I had trouble with the new lib.akm as well, had to reflash ROM. After flashing the new lib.akm.zip the phone would boot into os & shutdown. Had to use the charger to power it back on & get into recovery
[Samsung Galaxy Exhibit 4G] cars1189:
Sorry to hear that. I only tried the new libakm limitedly i just found out that it worked on our phone, maybe ill have to find another solution. Let me know how the rom itself works out. I just switch to 12.1 recently when i just got it to compile again so far its been ok but the phone is just slow even older android versions the hardware is just lacking so much. Anyways let me know how it goes CM12.1 is still being worked on so it may improve some in the future.

Side Note: Im trying to save to get a new phone but thats a slow process. If anyone has any ideas of a good phone in the ~$120 area ideas welcome. I can probabbly do that in 1-2 years lol. Anyways let me know. (Possibly in PMs)
[Samsung Galaxy Exhibit 4G] canodroid15:
So far the new 12.1 build is running OK(better than last build):thumbup: still lags @ times but not to bad. I'm using seeder along with kernel adiutor to increase performance a bit & im sure once the k^k kernels drop it'll be 100% better! All in all its running pretty good considering the device limitations!
[Samsung Galaxy Exhibit 4G] cars1189:
Just got done recently building CM12.1 Kernels. Uploaded now!

Now that im able to build 11/12/12.1 ill try and release builds on a montly basis. The CM11 might go EOL soon. As it has for at least the galaxy w(the device similar to ours that uses some same sources for building) As its just time..making three builds can be pretty time consuming for one person not to mention testing.

For anyone that wants to know im currently running CM12.1 with K^Kernel OC. I have been running CM12.1 since i made the build on 5-30-15 and while i havnt had any reboots, i have had to reboot due to glitches. On that note ill mention its not that bad as ive had to do this 1 or less times per day. Also recently i did have a issue with a MMS message but im not 100% sure if that issue is consistent yet. Ive had no other issues except the blank network signal which is only temporary and usually within about 1 min from boot the signal bar show up with no issues for the remainder of the session. I have added a link to gapps i use to the CM12.1 post so you guys can pretty much 100% replicate what im using.

about donations:

Also on a simi related note i have put up my paypal donation email to my profile if anyone wants to contribute i know i had mentioned it before but i had taken it down because i wanted to make sure it was setup properly. It is now up and running 100%. I am just mentioning because i did already have someone donate a SD card to me and thanks you very much to them(if i havnt said it enough) and since i made my post about a new phone someone has made an offer to donate.

As always donations are not required but are very much appreciated. If you would like to donate to and you wish to specify where the money goes like directly (eg. money for use to purchase a phone only) or w.e. (not that i would spend it else where anyways unless specified by donator) just pm me or w.e. with details, if you use the donate button on my xda profile it will send the donation with your xda username so i can keep track. I will also most likely have a like whos donated list unless you tell me you dont want to be known. I will also let you guys know where im at donations wise and what im thinking about buying with said amount. (100% transparent)