[ROM][5.1.1][UNOFFICIAL] CyanogenMod 12.1 for S3 Neo

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techie_vintage

Senior Member
Nov 26, 2011
223
8
install twrp via odin again, wipe data/cache/dalvic. look if systems boots up. if not, install cm12.1 again via twrp.

Gesendet von meinem GT-I9301I mit Tapatalk

Try wiping cache and dalvik and then try booting. If it doesn't reboot in the os wipe /system and cache + dalvik and flash the rom again. If that doesn't work too, try the method @dlewando suggested

Sent from my GT-I9301I using Tapatalk

Thanks frnds! Flashing twrp again helped in booting the system..
 

kostassfirakis

Senior Member
Dec 19, 2015
126
18
21
Elounda
0e46b979513419d3ca73a3876763e6c4.jpg
the last 34 min it stuck at 99% for 34 min I woke up suddenly middle if the night and it was burning as hell.. :v it's dangerous plz tell Rox fix that battery problem ASAP the battery is new btw.. @SpeederT12

Sent from my GT-I9301I using XDA-Developers mobile app
 

SpeederT12

Senior Member
Nov 1, 2014
166
38
Sofia, Bulgaria
0e46b979513419d3ca73a3876763e6c4.jpg
the last 34 min it stuck at 99% for 34 min I woke up suddenly middle if the night and it was burning as hell.. :v it's dangerous plz tell Rox fix that battery problem ASAP the battery is new btw.. @SpeederT12

Sent from my GT-I9301I using XDA-Developers mobile app
Wait, are you saying that it has been pinned at 99% for 34min?? Daaamn, something is going on. First, check the battery for any visible damage (leakage, increased size, anything abnormal) and after that, could you tell me what are these processes. I mean, I see wifi and gps but that's all I can understand in greek :p. Also, have you installed any new apps recently? My phone is gone mental noe, because its freezing occasionally, but not just the app, the whole os freezes. It gets to the point when the launcher itself crashes, and this is when there's no ram available. No clue what's happening with this rom, seems that it's getting weirder and weirder with every day.

Sent from my GT-I9301I using Tapatalk
 
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kostassfirakis

Senior Member
Dec 19, 2015
126
18
21
Elounda
Wait, are you saying that it has been pinned at 99% for 34min?? Daaamn, something is going on. First, check the battery for any visible damage (leakage, increased size, anything abnormal) and after that, could you tell me what are these processes. I mean, I see wifi and gps but that's all I can understand in greek :p. Also, have you installed any new apps recently? My phone is gone mental noe, because its freezing occasionally, but not just the app, the whole os freezes. It gets to the point when the launcher itself crashes, and this is when there's no ram available. No clue what's happening with this rom, seems that it's getting weirder and weirder with every day.

Sent from my GT-I9301I using Tapatalk
it's completely random there are days it goes to 100% normally then days that it goes to 99% or 93% or 87% and maybe the battery is charging but the software is glitching or something and the battery overloads XDD idk....... but I have noticed that when it happens to overheat a lot the battery is at 99% and the screen is on randomly and staying on OWO it happens usually at night when I am sleeping... I wake up suddenly 3 am, 2 am and I see the screen on and the phone burning like hell 50C°, 60C° wtf xD

Sent from my GT-I9301I using XDA-Developers mobile app
 
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kristakos

Senior Member
Dec 17, 2013
186
83
Sofia
it's completely random there are days it goes to 100% normally then days that it goes to 99% or 93% or 87% and maybe the battery is charging but the software is glitching or something and the battery overloads XDD idk....... but I have noticed that when it happens to overheat a lot the battery is at 99% and the screen is on randomly and staying on OWO it happens usually at night when I am sleeping... I wake up suddenly 3 am, 2 am and I see the screen on and the phone burning like hell 50C°, 60C° wtf xD

Sent from my GT-I9301I using XDA-Developers mobile app

I have the same problem except that my phone doesn't overheat.I'm now with latest build from n1kolaa.Also every zram kernels causes my phone to reboot randomly.But I still have the problem with the battery percentage/charging
 
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shecklerica

Member
Jan 27, 2015
35
6
I have the same problem except that my phone doesn't overheat.I'm now with latest build from n1kolaa.Also every zram kernels causes my phone to reboot randomly.But I still have the problem with the battery percentage/charging
yea,i think everyone of us has the charging and percentage problem.i really hope my samsung charger is fine and its just a rom problem.
 

kostassfirakis

Senior Member
Dec 19, 2015
126
18
21
Elounda
I also have the problem of slow camera loading which sometimes bugs with skype team calls (it randomly just won't load the back camera unless you recall..) the camera has also a bit worse focus and slower flash light enable and dissable.. I remember on the stock rom it was instantly you could enable it and dissable it as fast as you can tap it xD
By the way why offline charging mode doesn't exist in the rom? I remember someone (i think s3ve3g) had made cm12 5.0.2 rom which had offline charging completely working.

Sent from my GT-I9301I using XDA-Developers mobile app
 
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Clark001

Senior Member
Feb 5, 2016
50
4
Phone never charge at 100%! The phone charging requied a lot of time and it stucks at 50-60-80%. Never 100%! And i bought also a new battery but nothing!

Inviato dal mio GT-I9301I utilizzando Tapatalk
 

NuclearGandhi

Member
Mar 9, 2015
11
37
Phone never charge at 100%! The phone charging requied a lot of time and it stucks at 50-60-80%. Never 100%! And i bought also a new battery but nothing!

Inviato dal mio GT-I9301I utilizzando Tapatalk
If you have installed renix's kernel, then it's probably because of that.
Downgrade to v2.5 of renix's kernel and it should fix the problem.
If you do not have renix's kernel installed, I still recommend installing v2.5 of it, because it may fix the problem.
You can search the forum for renix63 CyanogenMod kernel. He doesn't show in the OP the v2.5 download link, but you can find it if you search the thread (posts 880-900 should have v2.5 download link).
 
Last edited:

Bigjazz2016

Senior Member
Mar 15, 2016
78
20
67
Almada
If you have installed renix's kernel, then it's probably because of that.
Downgrade to v2.5 of renix's kernel and it should fix the problem.
If you do not have renix's kernel installed, I still recommend installing v2.5 of it, because it may fix the problem.
You can search the forum for renix63 CyanogenMod kernel. He doesn't show in the OP the v2.5 download link, but you can find it if you search the thread (posts 880-900 should have v2.5 download link).
https://drive.google.com/file/d/0B_XTE_QKldqpVDlQcTVGZVAtUlk/view

Sent from my GT-I9301I using XDA-Developers mobile app
 
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  • 298
    logo-cid.png

    android-5.1-lollipop-update1.jpg

    CyanogenMod 12.1 for the Samsung Galaxy S3 Neo ( GT-I9301I, GT-I9301Q and GT-I9300I )

    Code:
    /*
     * Your warranty is now void.
     *
     * I am not responsible for bricked devices, dead SD cards,
     * thermonuclear war, or you getting fired because the alarm app failed. Please
     * do some research if you have any concerns about features included in this ROM
     * before flashing it! YOU are choosing to make these modifications, and if
     * you point the finger at me for messing up your device, I will laugh at you.
     */
    -----------------------------------------------------------------------------------------------------------------------------------------------------------
    Bugs and changelogs are in 2nd post !
    -----------------------------------------------------------------------------------------------------------------------------------------------------------

    Installation

    1. Download the ROM from the link below
    2. Download GAPPS
    3. Transfer the zip files to your SD card
    4.. Reboot to recovery mode ( Vol UP + Home + Power )
    Note: It is highly recommended to use TWRP recovery
    5. Optional: Do nandroid backup
    6. Wipe data / Factory Reset
    Note: Needed if you are updating from other andorid version or stock
    7. Install CM zip and GApps zip
    8. Reboot to system
    Enjoy! ;)


    -----------------------------------------------------------------------------------------------------------------------------------------------------------

    Download

    -----------------------------------------------------------------------------------------------------------------------------------------------------------

    Source

    Check out the ROM Source available on Github.
    Feel free to submit any fixes, Just remember to give proper credits when using other people's source.

    -----------------------------------------------------------------------------------------------------------------------------------------------------------
    If you want to support my work you can donate me coffe. Use "Send payment" option on paypal ( [email protected] ) because "Donate" option is not available in my country. Thanks. :)
    -----------------------------------------------------------------------------------------------------------------------------------------------------------

    Credits

    TeamCanjica
    Cyanogenmod team
    k2wl, aapav01 and mukulsoni mates from Grand2
    arco68 for help about camera and LPM
    Sekil for his dual-sim ril fixes
    Várk for testing on dual-sim variant
    _wook_ for help with debugging
    If i missed someone contact me!

    -----------------------------------------------------------------------------------------------------------------------------------------------------------​

    XDA:DevDB Information
    CyanogenMod 12.1 for S3 Neo, ROM for the Samsung Galaxy S3 Neo

    Contributors
    Rox
    Source Code: https://github.com/MSM8226-Samsung

    ROM OS Version: 5.1.x Lollipop
    ROM Kernel: Linux 3.4.x
    ROM Firmware Required: Stock 4.4.x firmware
    Based On: CyanogenMod

    Version Information
    Status: Stable
    Current Stable Version: cm-12.1-20151225
    Stable Release Date: 2015-12-25

    Created 2015-05-03
    Last Updated 2015-12-26
    105
    Reserved

    Bugs and Issues (25/12) :
    • Offline charging
    • Some devices have non-working camera because they have different sensor - FIX
    • NFC ( lack of sources )
    --------------------------------------------------------------------------------------------------------------------------------------------------
    Changelog:
    25/12 :
    • CM Sources update
    • Updated kernel source

    11/11 :
    • CM Sources update
    • Completely fixed audio in calls ( GT-9300I )
    22/10 :
    • CM Sources update
    • Audio glitches fixed
    07/10 :
    • CM Sources update
    • Various kernel updates
    18/09 :
    • CM Sources update
    • Switched to BFQ IO scheduler
    • Updated Media codecs from caf

    11/07 :
    • CM Sources update

    18/05 :
    • CM Sources update
    • Enable Ambient display feature
    • Camera fixes
    • RIL update

    03/05 :
    • Initial release

    --------------------------------------------------------------------------------------------------------------------------------------------------
    Next Version :
    • /
    --------------------------------------------------------------------------------------------------------------------------------------------------
    Using F2FS:
    What it is? Wikipedia

    To use it you should first convert your EXT4 partitions through recovery, before installing this ROM.

    Download and install this TWRP version: http://forum.xda-developers.com/showpost.php?p=56085899&postcount=2
    Wipe->advanced wipe
    Select cache->change or repair file system->f2fs
    Select data->change or repair file system->f2fs (Warning: internal storage is formatted, make a backup of your personal data before doing this!)
    --------------------------------------------------------------------------------------------------------------------------------------------------
    Tips :
    • To activate Developer settings : Settings -> About phone -> press Build number 7 times
    • To activate 3-way reboot go to Developer settings and select "Advanced reboot"
    • Root is disabled by default, enable it from Developer settings - Root access
    43
    New version is UP!

    Changelog:
    18/09 :
    • CM Sources update
    • Fix LPM charging
    • Switched to BFQ IO scheduler
    • Updated Media codecs from caf

    If you want to support my work you can donate me coffe. Use "Send payment" option on paypal ( [email protected] ) because "Donate" option is not available in my contry. Thanks. :)


    DOWNLOAD
    43
    New version is UP!

    It was built 11 Nov and it took some time to test... Soon there will be new final release

    Changelog:
    11/11 :
    • CM Sources update
    • Fully fixed audio in calls ( GT-I9300I )

    If you want to support my work you can donate me coffe. Use "Send payment" option on paypal ( [email protected] ) because "Donate" option is not available in my contry. Thanks. :)


    DOWNLOAD
    42
    Guys, you have no idea how much time i spent on this project to bring 99% bugfree CM to s3 neo. Show some respect. I have private life and i am busy, i will release update as soon as i can. If you dont like me as maintainer go pray to someone else. I said i will release this week and i will try to do that tomorrow, deal ? Just dont annoy with Stupid posts about new update and enjoy CM , be happy you have possibility to install it on your device