Hi,
I'm using a stock based ROM (4.1.2) and have many stability and battery issues with it (after freezing/uninstalling the Samsung bloatware). So I'm seeking for recommendations for a ROM that will be stable and efficient for the battery. Not looking for the latest Android version. Just something stable and that will last me a whole day. If there are recommendations for kernel, great!
Regards.
Rom/kernel recommendation threads are forbidden here because:-
A) No two people will have the same experience of a rom or kernel due to the vast differences in phone usage & setup which influence this experience (I.E how you use your phone & have it setup will influence performance/battery life/etc far more than a given rom or kernel).
B) Being XDA, if you're here, it's assumed you like messing with your phone. You're expected to make a nandroid, read some rom/kernel threads, and try some out for yourself to see how they work for you.
Mods will be closing this thread presently.
Related
I have a few questions sorry if its a repost but id rather make sure I get a good answer to those questions then any other variant of them.
I got a galaxy s2 a week ago and I feel like the battery life is really bad and the phone heats alot sometimes.... (BTW this is my first smartphone EVER) I was wondering which one of all these custom ROMs out there is the best for the galaxy s2? Which one will give me the smoothest experience with a good battery life and fix that heating problem?
Also, I have the Canadian bell's version so MUGKG2... When I look at ROMs all I see is XXKH3 or XXKE7, etc... Basically how and what version do I have to use/install to get a custom ROM? (P.S I know how Odin works and I know how to root since my phone is already rooted)
And what is the latest Android version possible to get on the galaxy s2? I heard something about 4.0 but I think the latest version possible to install is the 2.3.4 am I right? Also, every ROM is 2.3.4 right? Or do I have to flash a 2.3.4 (or 4.0 depending on the latest version) kernel on the phone?
Thanks for your time and have a good day!!!!!!!
Nick
1. there's no exact answer to which rom or kernel gives the best batt life. u should actually test them to see which fits your preference. there are also threads here which does benchmarkings and testing out batt life. try searching for them.
2. when u install a custom rom, it will say on their thread on what baseband version they based their rom. for example, LeoMar's ROM is based on KH3, etc. the rom chooses it for you basically.
3. the latest is 2.3.4, and almost all custom ROMs are based on 2.3.4. no need to flash anything extra
Ok so do I actually have to find a XXKG2 or MUGKG2 based ROM or I can take anything? And from personal experience which one do you think is the best one?
you can actually take in anything (at least your phone's getting an updated baseband version thru the custom roms).
i'm not quite sure how the different versions of the baseband affects my phone. i don't notice any difference in performance actually.
Aight!!! Thanks man. Which one do you recommend?
you can try using the dlev2 rom version 1.2 , its indeed great and also has good battery life
nickk_nac said:
Aight!!! Thanks man. Which one do you recommend?
Click to expand...
Click to collapse
cognition or litening rom can be good choices to start with.
leomar rom gives a lot of customization options because it has a kitchen app on the android market.
My recommendation is that you read some more, get comfortable before you flash anything on your device, know what you are about to get into instead of going on someone else's opinion, the questions you ask are of someone who doesn't fully understand what they are about to do.
It helps when you read a lot, you are able to think your own way through if something doesn't go exactly as planed, else you would have to come right back here to ask a million questions
you can find official firmware here: http://forum.xda-developers.com/showthread.php?t=1075278
as a few posts above i agree what that person said..do a bit more reading before you start flashing. i can remember the time when i wanted to start flashing and rooting and when i did not back up the stock rom the first time i panicked and i did not know what to do and how to get back the stock rom...funny now but back then not so funny..
anyway research play with your stock rom for a while and then flash...for custom rom i would suggest a few...Im using BatistaRom 3.7.7 its the smoothest fastest and battery efficient rom i have used so far...even when i go and try other roms i always come back to this one. For battery as well VillainRom 2.4.2 is one heck of a custom rom and the battery life on that bad boy is wicked..
With regarding kernels again it varies...read the threads of the rom you are interested in flashing and see what people suggest on them..
good luck and be careful when rooting and flashing. any help you need throw me a PM..
Yeah, there are like tons of ROMs and customizations for SGS2 and all major developers are cooking something or the other for our GS2...
Selection of ROM depends only on taste. Some people wants battery life, some people wants only speed and performance. So ask yourself, what kinda ROM you need. One built from scratch, one modded from stock, AOSP?
I use GingerMod Vanilla 0.4. Suits my taste
Whenever I flash a rom that's not stock based I get all kinds of trouble (force closing, random restarts, etc) any idea of what's causing these problems? Thanks
Sent from my SAMSUNG-SGH-I717 using xda premium
That is a long list my friend....
the causes of rom issues are many, but likely the biggest reason is this.
Stock roms and their variants are generally very stable, due in large part, to the fact that the builds were designed for our particular device.
They are programmed to simply work.
Now if you are using a rom that is ported over for our note, it likely contains bugs, missing data, drivers etc. that the stock rom already has working.
Many builds are alpha level quality, and "will" give you problems..but developers, rom cookers, will fix these issues one by one, until a stable build is reached.
If you want a solid and reliable rom, you simply need a stock build, or one of it's variants, that will contain the needed data to make the device run as it should...
I hope this helps explain the issues a bit more for you.....g
I have no issues on ParanoidAndroid 2 with KKO.8 kernel. Do you wipe all directories when installing the non-touchwiz ROM?
There are so many different reasons, just because we have the same phone/model does not mean we will have the same effects. Different apps, for different users...
As ICS is stable and Official, the newness of JBean is there, there are plenty of great stable Jbean ROMs out, you have to ensure you are following the OPs in detail without any deviation.
Thank You
Hi,
I am a new Galaxy S II (i9100) owner. I have a couple of questions, if some of the experienced users could please assist me I would greatly appreciate it. My questions are listed by priority:
EDIT: I am rephrasing my questions and putting the answers that I feel are best suited so that people who are interested can see the answers in one clean post
1) I understand that CM Mod is based on AOSP and is used as a base on a lot of ROMS but could someone please explain to me how a ROM could be an AOKP ROM and "Based on CM10". Are they taking certain modules from CM10 and certain things from an AOKP Build and putting it together?
ROMS usually take the best of CM and AOKP and combine to produce a more stable base.
2) I know what CWM is but once you use ODIN to flash CWM onto your phone where does it go? By this I mean, does it sit on the ROM or somewhere on your Internal SD card (or both, maybe it puts settings on your SD card). I would like to know if I format my Internal memory will it remove or cause CWM to bug out?
CWM will get removed from your phone if you flash a Kernal that doesn't have CWM on it. It will also get removed from your phone if you "format" the internal SD as that is where it is stored. CWM will NOT be removed if you flash a update to your phone that doesn't require you to "wipe"
3) I am not a fan of the Stock Samsung ROMS because of the bloatware that it contains. However, is it all possible that these Stock Samsung ROMS have built in optimization code or something that works better for my specific device? I ask this because the best battery life I've managed to get was on Stock Samsung ICS where as my battery life dies on any of the JB Roms (Even SlimBean)
AFAIK Stock Roms are optimized for basic / standard features. Custom ROM's can be optimized for the way you use your phone. A Stock ROM is a "One Size Fits all ROM" a Custom ROM can be "Tailored" to fit your needs.
4) I understand how I/O Schedulers / Governors etc work but what advantage does using a non stock Kernel have? As far as I understand these can be changed on any rooted Kernel or am I incorrect?
I/O Schedulers / Governors can be changed on rooted or non rooted Kernels. Rooted Kernels have access to their own custom schedulers and governors.
5) When I download an app from Play store is there no way for me to not install it and just download the APK? So that I don't have to backup all my apps (I don't like using Titanium very much) and so that I can just reinstall the APK files from my internal Memory?
No There is no way to get around this. Install APK files from the Web. Use Titanium Backup to backup applications installed from the Play Store.
6) I've followed the guide to enable or disable Fast Dormancy (I'm still learning about this) however when I type the code in my phone (*#9900#) or (*#0011#) nothing happens. Is this because I'm running JB and these codes only work on ICS?
These codes only work on Stock ROMS
7) When I have a look at my battery usage (currently on CM10) screen says "52%" even though my brightness is set to like 25%. I am trying to figure out why my battery is dying so fast. Is this normal?
There is no "Normal". Too many factors involved. Have a look at the BBS Thread http://forum.xda-developers.com/show....php?t=1179809. You may post your BBS dump/log in this thread and ask the experts to analyze it for you.
8) What is the main difference between AOSP and AOKP? I understand that AOKP will open up a lot of other customizations to me but what are these customizations? I assumed it was things like setting the governor and the I/O Scheduler etc but I've installed ROMS based on AOSP that allows me to do that.
Busy Formulating an answer
9) Galaxy S2 Modems I keep flashing different modems on my phone but I see no change in signal whatsoever is there an application or anything that can help me get an accurate benchmark so that I know which modem is "best" for me?
This is usually done by trial and error. Have a look at the Modem / RILS thread to ensure that your Baseband and RIL version match. Alternatively you can use an app called GETRIL which will get the correct RIL file for your modem
10) Please don't mistake this as a "What's the best ROM??" question. I've tried many different ROMs and I still haven't got a favorite I am looking for someone who has an idea of which ROM will mostly fulfill my requirements which are:
(BTW I'm leaning towards SlimBean here)
1) JB (I love JB keyboard)
2) Battery life (I think I'm looking for something that uses the conservative governor)
3) I mainly use my phone for WhatsApp (I use this ALOT) and browsing (barely for games)
4) Lightweight (I don't want Samsung Apps, I don't want a ROM that has 3 launchers etc.)
5) I don't mind charging my phone once every 16-18 hours.
6) Preferably AOKP so I can mess around and experiment and perhaps give back to the community
This is my personal opinion but I think that SlimBean will best fit my requirements
lickwidice said:
Hi,
I am a new Galaxy S II (i9100) owner. I have a couple of questions, if some of the experienced users could please assist me I would greatly appreciate it. My questions are listed by priority:
1) I understand that CM Mod is based on AOSP and is used as a base on a lot of ROMS but could someone please explain to me how a ROM could be an AOKP ROM and "Based on CM10". Are they taking certain modules from CM10 and certain things from an AOKP Build and putting it together?
2) I know what CWM is but once you use ODIN to flash CWM onto your phone where does it go? By this I mean, does it sit on the ROM or somewhere on your Internal SD card (or both, maybe it puts settings on your SD card). I would like to know if I format my Internal memory will it remove or cause CWM to bug out?
3) I am not a fan of the Stock Samsung ROMS because of the bloatware that it contains. However, is it all possible that these Stock Samsung ROMS have built in optimization code or something that works better for my specific device? I ask this because the best battery life I've managed to get was on Stock Samsung ICS where as my battery life dies on any of the JB Roms (Even SlimBean)
4) I understand how I/O Schedulers / Governors etc work but what advantage does using a non stock Kernel have? As far as I understand these can be changed on any rooted Kernel or am I incorrect?
5) When I download an app from Play store is there no way for me to not install it and just download the APK? So that I don't have to backup all my apps (I don't like using Titanium very much) and so that I can just reinstall the APK files from my internal Memory?
6) I've followed the guide to enable or disable Fast Dormancy (I'm still learning about this) however when I type the code in my phone (*#9900#) or (*#0011#) nothing happens. Is this because I'm running JB and these codes only work on ICS?
7) When I have a look at my battery usage (currently on CM10) screen says "52%" even though my brightness is set to like 25%. I am trying to figure out why my battery is dying so fast. Is this normal?
8) What is the main difference between AOSP and AOKP? I understand that AOKP will open up a lot of other customizations to me but what are these customizations? I assumed it was things like setting the governor and the I/O Scheduler etc but I've installed ROMS based on AOSP that allows me to do that.
9) Galaxy S2 Modems I keep flashing different modems on my phone but I see no change in signal whatsoever is there an application or anything that can help me get an accurate benchmark so that I know which modem is "best" for me?
10) Please don't mistake this as a "What's the best ROM??" question. I've tried many different ROMs and I still haven't got a favorite I am looking for someone who has an idea of which ROM will mostly fulfill my requirements which are:
...
Click to expand...
Click to collapse
Ha ha, next time, please don't post so many questions in one post.
Then you will get more answers IMO.
I can't answer every question, but I'll try my best:
1) As I am using stock / Sammy ROMs only, I can give no clue to that. Please search and read a bit in ROM threads.
2) In SGS2 firmware, recovery (CWM is a special, enhanced recovery) is included in the kernel. If you format your internal memory (sd card), it will be removed, and will have to flash a new firmware (whole ROM including a new kernel with recovery) to your phone.
3) I like stock / Sammy ROMs, but custom ROMs may include same or similar device-specific drivers/etc. AFAIK.
4) Most custom kernels support different I/O Schedulers and CPU Governors. So you can switch to the one you like/prefer.
5) Apps from Play store will be automatically installed on your phone. That's why so many users are using Titanium Backup.
6) There is an app from gokhanmoral to switch Fast Dormancy on/off. I don't have the link, so you have to search for it here on xda. The USSD codes won't work on some ROMsm such as non-stock or JB.
7) Have a look at BBS thread => http://forum.xda-developers.com/showthread.php?t=1179809. You may post your BBS dump/log in this thread and ask the experts to analyze it for you.
8) Have already google it, or look at wikipeadia. I have no better answer ... sorry.
9) Have a look at the modem thread here => http://forum.xda-developers.com/showthread.php?t=1131950, and here for modem/RIL files => http://forum.xda-developers.com/showthread.php?t=1881304
10) No "What's the best ROM??" question?! Sounds like that to me You have to check different ROMs yourself and decide yourself what's best for you and your needs.
Good luck !
lickwidice said:
Hi,
I am a new Galaxy S II (i9100) owner. I have a couple of questions, if some of the experienced users could please assist me I would greatly appreciate it. My questions are listed by priority:
1) I understand that CM Mod is based on AOSP and is used as a base on a lot of ROMS but could someone please explain to me how a ROM could be an AOKP ROM and "Based on CM10". Are they taking certain modules from CM10 and certain things from an AOKP Build and putting it together?
2) I know what CWM is but once you use ODIN to flash CWM onto your phone where does it go? By this I mean, does it sit on the ROM or somewhere on your Internal SD card (or both, maybe it puts settings on your SD card). I would like to know if I format my Internal memory will it remove or cause CWM to bug out?
3) I am not a fan of the Stock Samsung ROMS because of the bloatware that it contains. However, is it all possible that these Stock Samsung ROMS have built in optimization code or something that works better for my specific device? I ask this because the best battery life I've managed to get was on Stock Samsung ICS where as my battery life dies on any of the JB Roms (Even SlimBean)
4) I understand how I/O Schedulers / Governors etc work but what advantage does using a non stock Kernel have? As far as I understand these can be changed on any rooted Kernel or am I incorrect?
5) When I download an app from Play store is there no way for me to not install it and just download the APK? So that I don't have to backup all my apps (I don't like using Titanium very much) and so that I can just reinstall the APK files from my internal Memory?
6) I've followed the guide to enable or disable Fast Dormancy (I'm still learning about this) however when I type the code in my phone (*#9900#) or (*#0011#) nothing happens. Is this because I'm running JB and these codes only work on ICS?
7) When I have a look at my battery usage (currently on CM10) screen says "52%" even though my brightness is set to like 25%. I am trying to figure out why my battery is dying so fast. Is this normal?
8) What is the main difference between AOSP and AOKP? I understand that AOKP will open up a lot of other customizations to me but what are these customizations? I assumed it was things like setting the governor and the I/O Scheduler etc but I've installed ROMS based on AOSP that allows me to do that.
9) Galaxy S2 Modems I keep flashing different modems on my phone but I see no change in signal whatsoever is there an application or anything that can help me get an accurate benchmark so that I know which modem is "best" for me?
10) Please don't mistake this as a "What's the best ROM??" question. I've tried many different ROMs and I still haven't got a favorite I am looking for someone who has an idea of which ROM will mostly fulfill my requirements which are:
(BTW I'm leaning towards SlimBean here)
1) JB (I love JB keyboard)
2) Battery life (I think I'm looking for something that uses the conservative governor)
3) I mainly use my phone for WhatsApp (I use this ALOT) and browsing (barely for games)
4) Lightweight (I don't want Samsung Apps, I don't want a ROM that has 3 launchers etc.)
5) I don't mind charging my phone once every 16-18 hours.
6) Preferably AOKP so I can mess around and experiment and perhaps give back to the community
Click to expand...
Click to collapse
1. Yes the best of cm and AOKP where combined to produce a more stable base.
2. CWM or clockworkmode is a phone based recovery that allows you to make changes without powering and rebooting the phone in recovery mode. It is added to rooted kernel and will disappear if you flash a wiped or standard kernal over it.
It will not disappear if you flash an non wipe update to your phone.
3. jb roms are getting better with the battery as new optimizations are being intergrated. Stock roms were designed around the battery with minimal features implemented, when you add apps your battery will start get worse.
4. yes they can be changed on rooted kernals or non rooted kernals. On rooted kernals it gives you more control over the functions of the phone.
5. unfortnately play store automatically installs the apks automatically. you need to back them up with a program similiar to titanium back up. They are a few different versions in play store just find one you like. Only non play store apps download the apk for you to install yourself. One of the functions of CWM is to allow you to install APKS. I System Tuner Pro myself.
6. Correct, those codes only work with the stock keyboard and ics roms as JB Have very little stock apps included.
7. How fast the batttery discharges depends on a number of factors like what apps are running, If you leave wi fi on and if you have wake locks. BBs which is a battery recording app can found on this forum. Make a log of a day and post it and experenced members will review it and advise what to do to get better battery life.
8. You need to ask a developer what the differences are. But I think AOKP is an upgrade of AOSP.
9. No trial and error is the only method. Your baseband and ril must match to get the most efficiency
out of your modem. There is a small program called GETRIL which will update the ril for you.
10. unfortunately everybody's preferences are different so it is another case of trying roms till you find on you are happy with.
I hope that these answers of some help.
@It_ler @Cosmic Blue
Thanks for the replies... I have a better understanding already. I've read up on GETRIL and will give that a try.
2) In SGS2 firmware, recovery (CWM is a special, enhanced recovery) is included in the kernel. If you format your internal memory (sd card), it will be removed, and will have to flash a new firmware (whole ROM including a new kernel with recovery) to your phone.
Click to expand...
Click to collapse
2. CWM or clockworkmode is a phone based recovery that allows you to make changes without powering and rebooting the phone in recovery mode. It is added to rooted kernel and will disappear if you flash a wiped or standard kernal over it.
It will not disappear if you flash an non wipe update to your phone
Click to expand...
Click to collapse
I understand. But is the internal memory partitioned? If I use X-plore I have a 11gig SD Memory and then I have a "/Root" folder which is 2gigs
Structure looks like this: /sdcard 11gb (10.9gbfree)
/root 2gb (1.7gb free)
Does CWM and Kernel not sit in /root? and is "/root" not a separate partition?
So...Instead of doing your own research & getting full/accurate answers to your questions (and learning a lot in the process), you'd rather sit here & wait for 'users' to give you mostly vague-ish answers to them ?
(Hint: By & large, developers do not read Q&A. They have better things to do.)
Edit - List of SGS2 partitions
MistahBungle said:
So...Instead of doing your own research & getting full/accurate answers to your questions (and learning a lot in the process), you'd rather sit here & wait for 'users' to give you mostly vague-ish answers to them ?
(Hint: By & large, developers do not read Q&A. They have better things to do.)
Edit - List of SGS2 partitions
Click to expand...
Click to collapse
MistahBungle this is a Q&A thread if you don't have any A's then rather don't post. I've had the Galaxy for 3 days. In 3 days I've read a lot and done a lot of research. You reply makes no sense that's like saying: "So Instead of failing many times and then getting it right you'd rather Google and get it right the first time?". I posted here because I know 90% of the people here are experts and will give me the answers I'm looking for. Also, I'm not posting questions like "OMG Lulz teach me how to root my phone" you can see that I've tried and these are questions that I have after trying out different ROMS.
Thanks to those that are willing to help, this is what builds a good community.
So that link I posted is an illusion, huh ?
MistahBungle said:
So that link I posted is an illusion, huh ?
Click to expand...
Click to collapse
OMW Oops :/. I'm so sorry I didn't even see that link I thought it was a signature. Thanks for the link you posted it is very helpful I'm reading it right now.
Before you start getting hostile please realise nobody on this site is obliged to help you and anyone who does reply to your thread does so in their own time and off their own volition. Beggers can't be choosers.
But otherwise your post isn't too bad. The differences between CM and AOKP are mainly cosmetic and to do with feature. There is no "AOSP" as everything is at its core based off AOSP. I always image AOKP as just a more streamlined, feature inclusive CM but recently they have started to add their own tweaks etc. Honestly, it doesn't matter anymore because with Siyah kernel (and kernels like it) being able to work on multiple platforms you can have ROMs with CM base and AOKP+Paranoid features.
The "features" I'm talking about are stuff like integrated weather, quick flashlight toggle, change the battery/signal display, etc etc.
postfatal said:
Before you start getting hostile please realise nobody on this site is obliged to help you and anyone who does reply to your thread does so in their own time and off their own volition. Beggers can't be choosers.
But otherwise your post isn't too bad. The differences between CM and AOKP are mainly cosmetic and to do with feature. There is no "AOSP" as everything is at its core based off AOSP. I always image AOKP as just a more streamlined, feature inclusive CM but recently they have started to add their own tweaks etc. Honestly, it doesn't matter anymore because with Siyah kernel (and kernels like it) being able to work on multiple platforms you can have ROMs with CM base and AOKP+Paranoid features.
The "features" I'm talking about are stuff like integrated weather, quick flashlight toggle, change the battery/signal display, etc etc.
Click to expand...
Click to collapse
I do agree that I should've responded in a better way, and that people are not obliged to help me. That's why I thank the people that do help. However, commenting on a thread and telling the OP to do his research doesn't seem constructive to me whatsoever (I've seen many threads like this). Posting a link is a quick CTRL+V and is way more constructive IMO.
Thanks for clearing up the differences for me. It makes a lot of sense. Everything is based on AOSP since that is the most "pure" release. AOKP is modified AOSP and CM is also Modified AOSP. So essentially most AOKP Roms take the best from AOKP builds and CM builds.
héy guys ..
can anyone tell me what rom i can choose for my device samsung galaxy s2 i9100p for a better battery life because i get about 6 houres without any use the battery is in down all the time and i don't know the solution help me please :crying:
There's no such thing. Rom recommendations are forbidden here, you need to go to the two development sections, read some threads, make a nandroid so you can go back to your current setup in 5 minutes if you don't like a particular rom you try, and try some roms.
There is no magic formula for battery life. It depends on how your phone is setup & how you use your phone, not which rom you use (kernel has a much greater bearing on battery life than rom in my experience). There is a wealth of information on how to extract better battery life on here, but you have to read threads & test stuff, there's no easy way.
Thread closed as its a Best ROM thread. OP what works best for one user may not work best for you due to differences in how you use the device. My advice would be to try them out and see which one is best for you.
Hello guys!
You have probably had a lot of similar questions regarding this topic, but I can't find any clear answer myself.
I have watched a lot of videos about CyanogenMod, Carbon ROM, ArchiRom (can't remember the exact name) and even a ROM called "Energy HD".
It's great that there are so many possibilities regarding ROMs, but it also tends to confuse me quite a bit - I personally do like a clean ROM, just with the basic Apps installed (Internet Browser e.g.), I also would like to have a nice battery performance and, thirdly, the possibility to chose which Apps I would like to install.
I hope you guys get what I'm trying to say.
Thanks in advance.
Kind regards,
Crash1k
There is no such thing as a best rom as this is subjective. The only way for you is to read and try the roms that seems the most appropriate in regards to your wishes.
You can start to read here:
http://forum.xda-developers.com/galaxy-s3/general/09-03-2013-1-threadthe-absolute-thread-t1674286
Thank you for your help.
I have installed the latest ArchiDroid ROM. Everything works fine there, besides two things: I have random shutdowns and GravityBox doesn't seem to work, since there is already another Launcher installed (Google Now). I haven't found a way to fix that yet. Can anyone help?
Greetings,
Crash1k
-for me best rom for galaxy s3 is Archidroid v3.0.2 because it include a lot of optimizations , you can try it with boeffla kernel (CM11)
-Rom who include a lot of options ported from another roms is Temasek ( it include a lot of things like gesture lockscreen ...) , try it with boeffla kernel
-if you want maximum battery life, turn to touchwizz rom based on 4.3( Omegar rom or Android revolution) or 4.4.4 ( Blekota Note 4 or blekota s5)
I guess I will move away from ArchiDroid, since it randomly reboots several times a day, and there doesn't seem to be any support. Well, at least I tried it.
if you want a good battery life i suggest to you Liquidsmooth 3.2: it has a lot of configuration and a good battery life by the battery life mode that at off-screen change to off wifi,data,sync,kill all the applications... if you want another i say Resurrection remix 5.1.5. based on 4.4.2. Very stable and daily usable. A nice kernel for both the roms is boeffla.