yashsingh1/xdaforums huggingface dataset:
[Sony Xperia S, Acro S, Ion] Mirhawk:
You can read the method from here to understand.

To answer Your questions,

1. FOTA is a partition to flash recovery(CWM/TWRP) on it in some kernels which support it. The recovery is flashed there becuase even when You flash some ROM's, Your recovery remains. Thus avoiding the need to flash the recovery again and again. Kernel.elf was used only with stock kernel, You won't find it in ROM's. Since You are on stock, don't do anything with boot.img from b20.

2. If You flash the TWRP by the method on their official page, it shows a complete message, which indicates that the TWRP was flashed properly. Also, if You turn of Your phone, then boot it and press the volume down button 2-3 times when the Sony logo appears, You will go into TWRP if it is flashed properly.

3. Yes, TWRP is recommended to flash Lollipop ROM's.

4. carbon boot.img is used since the boot.img of b20 doesn't have recovery in it, but the carbon boot.img has and it is needed to flash the ROM. No it is not because of that.

Also, if You have TWRP, You can directly flash the ROM via TWRP.
[Sony Xperia S, Acro S, Ion] berda77:
Re

The kernel I provided a link for has in-built TWRP recovery from which you can flash 5.xx Roms. So, you have 2 options: either to flash Carbon Rom kernel or any other KitKat kernel which has TWRP recovery or to flash JB kernel S-DooMKernel-JB-v06.zip and try to flash 5.xx Roms from S-DooMKernel-JB-v06.zip kernel CWM recovery.

---------- Post added at 20:34 ---------- Previous post was at 20:31 ----------

Theming options as well as the other ones you can find on uCyan-12.0-b03/b04 or uCyan-12.1-b01. As for "Input method options" press "current keybord" and enable the other one.

---------- Post added at 21:09 ---------- Previous post was at 20:34 ----------

I didn't catch you/ You flashed boot.img from b20 rom's zip file, entered in TWRP and got a message "this rom is for "nozomi" devices?
[Sony Xperia S, Acro S, Ion] ellocolistorti:
hola genio! tengo instalada la b20 con el sistema de archivos F2FS en data, system y cache y la verdad que anda genial, la batería dura muchísimo, pero como la felicidad no es completa ... SE ESCUCHA MUY MUY MUY BAJITO todo !!! tanto el altavoz como el auricular!

alguna solución conocida? el mismo problema tuve con la b19 no así con la b17 que la usé unos 20 días! y otra cosa!! más de la mitad de las veces cuándo salgo de casa que tengo WIFI no me conecta al plan de datos ... en la b17 ese problmita no pasaba !!
[Sony Xperia S, Acro S, Ion] Panayotis:
Hi

Thanks a lot for your post

So I installed Boot Carbon.Img

I succeed to start in Recovery Mode

I format/wipe system/data and cache

And i launch install nAOSP 5.1 rom b20

And it crashed!!!

Here the details:

Checking for MD5 file...

Skipping MD5 check: no MD5 file found

mount: failed to mount /dev/block/mmcblk0p12 at

/system : Device or Ressource busy

symlink: some symlinks failed

E:ERROR executing updater binary in zip '/sdcard/nAOSProm-5.1 -b20.zip

Error flashing zip '/sdcard/nAOSProm-5.1 -b20.zip

Updating partition details...

...done

FAILED

Need help!!!!
[Sony Xperia S, Acro S, Ion] Mirhawk:
Yeah, You might get that error sometimes. Try flashing again. If You get that error again, reboot to TWRP and then flash the ROM without wiping anything.
[Sony Xperia S, Acro S, Ion] Panayotis:
Hello

I have tried a second time with and i Unmount all partitions except SDCARD, but Flash Failed

Here the details

ApplyParsedPerms: /lsetfilecon of /system/lost+found to u:object_r:system_file : s0 failed: OPERATION NOT SUPPORTED ON TRANSPORT endpoint set_metadata_recursive: some changes failed

Error executing updater binary in zip '/sdcard/nAOSProm -5.1 -b20.zip

I will try without wipe as you told me!

---------- Post added at 06:47 PM ---------- Previous post was at 06:40 PM ----------

Didnt work after rebooting TWRP without wipe!!! Any idea
[Sony Xperia S, Acro S, Ion] berda77:
Re

Usually, flashing a boot.img from the Rom prior entering TWRP helps avoiding such errors like "Error executing updater binary". But, you can flash that boot.img only if you have TWRP in Fota partition. This means you can perform this step if you are on KitKat Rom.

Also, don't forget to do this:

In TWRP, go to Wipe - Advanced and wipe everything but sdcard. Then go to Mount and uncheck everything but sdcard. Then go to Install section and flash the desired Rom followed with Wipe and flashing the required Gapps (5.0 or 5.1). After all Wipe Dalvik & Cache and reboot.
[Sony Xperia S, Acro S, Ion] Panayotis:
It doesnt work! Please tell me how i can restore /reflash a boot.img in order to start noramlly my device! I need it for the week!
[Sony Xperia S, Acro S, Ion] diasdylan2012:
how is the battery life of b20? and is the ghost touch bug resolved?

i had flashed b19 earlier and was getting very low battery life. and the ghost touch was really annoying..couldnt even unlock my phone at times.

so are these issues resolved?
[Sony Xperia S, Acro S, Ion] ellocolistorti:
volumen

hola genio! tengo instalada la b20 con el sistema de archivos F2FS en data, system y cache y la verdad que anda genial, la batería dura muchísimo, pero como la felicidad no es completa ... SE ESCUCHA MUY MUY MUY BAJITO todo !!! tanto el altavoz como el auricular!

alguna solución conocida? el mismo problema tuve con la b19 no así con la b17 que la usé unos 20 días! y otra cosa!! más de la mitad de las veces cuándo salgo de casa que tengo WIFI no me conecta al plan de datos ... en la b17 ese problemita no pasaba !!

---------- Post added at 05:58 PM ---------- Previous post was at 05:55 PM ----------

hola genio! tengo instalada la b20 con el sistema de archivos F2FS en data, system y cache y la verdad que anda genial, la batería dura muchísimo, pero como la felicidad no es completa ... SE ESCUCHA MUY MUY MUY BAJITO todo !!! tanto el altavoz como el auricular!

alguna solución conocida? el mismo problema tuve con la b19 no así con la b17 que la usé unos 20 días! y otra cosa!! más de la mitad de las veces cuándo salgo de casa que tengo WIFI no me conecta al plan de datos ... en la b17 ese problemita no pasaba !!

hello genius! I have installed the b20 with F2FS system data files , system and cache and truth that goes great, the battery lasts a lot, but as happiness is not complete ... IS HEARD VERY VERY VERY short everything !!! both the speaker and headset !

a known solution ? I had the same problem with not so with the b19 b17 I used it about 20 days ! and another thing !! more than half of the time when I leave the house that I do not connect to WIFI data plan ... on the b17 that little problem did not happen !!
[Sony Xperia S, Acro S, Ion] berda77:
Re

If nothing helps, flash Carbon or any KitKat Rom, then install TWRP recovery in Fota partition (installation of TWRP recovery in Fota partition can be done only on KitKat or Lollipop Roms). After that try to flash a boot.img from the Rom (5.xx) prior entering TWRP and proceed with the following:

In TWRP, go to Wipe - Advanced and wipe everything but sdcard. Then go to Mount and uncheck everything but sdcard. Then go to Install section and flash the desired Rom followed with Wipe and flashing the required Gapps (5.0 or 5.1). After all Wipe Dalvik & Cache and reboot.

How to install TWRP recovery in Fota partition you were already given instructions.
[Sony Xperia S, Acro S, Ion] mr.sky10295:
Now What is this uCyan-12 thing now? :confused:

Can you give me its link? I am currently browsing through mobile so its very tedious job...

Thank you!
[Sony Xperia S, Acro S, Ion] berda77:
link for uCyan

https://mega.co.nz/#F!60cHlYRb!wdYGx9SkRt2S8b3LtHhgeg. Try uCyan b03 or uCyan 12.1 cause as Dev said uCyan b04 needs reworking due some gpu lags.
[Sony Xperia S, Acro S, Ion] Mirhawk:
That is a new error. Try flashing this kernel via fastboot, it has CWM and the n flash the ROM via it.
[Sony Xperia S, Acro S, Ion] LuisT21:
Does Xperia S support BLE?

as tittle, thanks, Does Xperia S support BLE?
[Sony Xperia S, Acro S, Ion] diasdylan2012:
does b20 solve ghost touch issues?? specially on unlock screen.

and is the battery better in b20?
[Sony Xperia S, Acro S, Ion] ItsEZ:
Hello,

I was wondering if you guys could help me, I am trying to install the custom rom on my xperia S but I can't seem to get it into the recovery mode. Tried all the crazy combinations, ticking the screen holding that and that and that button, I used some different apps to launch the app into recovery mode but none of them seems to work, just to be clear, the phone is rooted and clean.

thanks
[Sony Xperia S, Acro S, Ion] Mirhawk:
Hope You have unlocked Your bootloader.

You can try the method from here.
[Sony Xperia S, Acro S, Ion] berda77:
Maybe this can help you

Be sure your phone bootloader is unlocked

Check here how to flash 5.xx Rom: http://xdaforums.com/showpost.php?p=60201572&postcount=660
[Sony Xperia S, Acro S, Ion] ItsEZ:
Thanks, that a pretty good tut you got there, only my cmd keeps saying < waiting for device >, the device is connected and the blue light was on (quickboot) :(
[Sony Xperia S, Acro S, Ion] Panayotis:
L26 running nAOSP 5.1

Just to say THANK YOU to Mickybart for his job!

My LT26 is running right now with Lollipop nAOSP 5.1 b20

And many thanks to Mirhawk and Berda77 for their help!

Here is what I have done in order to get Lollipop from Stock Rom 4.1.2

1/Unloack Bootloader (with Sony Guide), BLU from Flashtool works too

2/Flash Kernel with DoomKernel.elf

3/Start in Recovery CMW

4/Flash nAOSP 5.1 b20 rom (I did not format System, Data and Cache)

5/Format Cache and Dalvik only

6/Flash Gapps

7/Reboot

8/Wait 15min with the android animation

Sources

http://xdaforums.com/showpost.php?p=56362367&postcount=8

http://xdaforums.com/xperia-s/help/qa-naosprom-xperia-s-t2958723/page69
[Sony Xperia S, Acro S, Ion] koxyman88:
Does this rom works on xperia SL LT26ii?
[Sony Xperia S, Acro S, Ion] ellocolistorti:
hola genio! tengo instalada la b20 con el sistema de archivos F2FS en data, system y cache y la verdad que anda genial, la batería dura muchísimo, pero como la felicidad no es completa ... SE ESCUCHA MUY MUY MUY BAJITO todo !!! tanto el altavoz como el auricular!

alguna solución conocida? el mismo problema tuve con la b19 no así con la b17 que la usé unos 20 días! y otra cosa!! más de la mitad de las veces cuándo salgo de casa que tengo WIFI no me conecta al plan de datos ... en la b17 ese problemita no pasaba !!

hello genius! I have installed the b20 with F2FS system data files , system and cache and truth that goes great, the battery lasts a lot, but as happiness is not complete ... IS HEARD VERY VERY VERY short everything !!! both the speaker and headset !

a known solution ? I had the same problem with not so with the b19 b17 I used it about 20 days ! and another thing !! more than half of the time when I leave the house that I do not connect to WIFI data plan ... on the b17 that little problem did not happen !!
[Sony Xperia S, Acro S, Ion] vishals16:
Yes it does. All Xperia S roms work on SL :)
[Sony Xperia S, Acro S, Ion] KoppN750a:
how to overclock cpu in b20? there is no option in setting like in uCyan
[Sony Xperia S, Acro S, Ion] vishals16:
Use apps like trickster mod or kernel tuner to oc cpu and gpu. Remember to check option set on boot.
[Sony Xperia S, Acro S, Ion] saintdeux:
help

I suddenly have random power off issues, im using b20.

Thank you for the help :)
[Sony Xperia S, Acro S, Ion] koxyman88:
thank you so much bro :)
[Sony Xperia S, Acro S, Ion] MickeyMx:
Hey thanks for making this rom!

I cleanly flashed b17 but now that I want to upgrade, I can't seem to boot into the recovery I previously had installed (TWRP).

The TWRP app off the play store registers that it is still on the device but I can't seem to access this. Any ideas on how to remove the rom or hopefully, upgrade to b20?
[Sony Xperia S, Acro S, Ion] berda77:
TWRP recovery

Flash TWRP recovery in Fota partition (this can be done on KitKat and 5.xx Roms only)

Download the latest version of TWRP from here. Rename downloaded file as 2850.img and place it in the root of sdcard. Install terminal apk and type the following command: su + enter for granting root rights for terminal apk.

Then dd if=/sdcard/2850.img of=/dev/block/mmcblk0p11 (where sdcard/2850.img means path and name of the downloaded file). That's it.

Also, if you face an error like "update binary bla bla" just flash a boot.img from the Rom via Fastboot prior entering TWRP and proceeding with the installation of Rom. Also, check here http://xdaforums.com/showpost.php?p=60201572&postcount=660
[Sony Xperia S, Acro S, Ion] Mirhawk:
That is not correct, it can be used on Jelly bean ROM's too, bu they need to have support for FOTA kernel recovery. Also, not all Kitkat/Lollipop ROM support FOTA kernel recovery.
[Sony Xperia S, Acro S, Ion] amrshamma:
Does it work on xperia sl lt26ii ?
[Sony Xperia S, Acro S, Ion] abpanchali:
Ghost Touch on Xperia S nAOSP 5.1_b20

Can someone ask the [MENTION=6043081]mickybart[/MENTION] to address the ghost touch issue on this ROM please?
[Sony Xperia S, Acro S, Ion] :
I have never heard oft this issue neither in this Rom nor any other z3c build. Have you rreplaced your display recently? Mostly this comes from damaged hardware, most likely the display flex cable connectors.
[Sony Xperia S, Acro S, Ion] abpanchali:
I do have a damaged 2.5 mm headphone port but surely not the flex cable. Haven't changed the scrren either. It's a very common problem. Atleast where i stay, even with other xperia devices like xperia sp.
[Sony Xperia S, Acro S, Ion] vishals16:
Until the issue is resolved, you can disable double tap to wake in developer options. That should help.
[Sony Xperia S, Acro S, Ion] abpanchali:
Okay. I will. That said, the ghost touch lasts till long after the phone is out of my pocket and in my hands. I had to reboot the phone twice before i could use it normally agsin. In any case, thanks.
[Sony Xperia S, Acro S, Ion] Mirhawk:
Many have reported it, though You are lucky not to have faced them as they cause a havoc, literally! :eek:

According to recent post by developer, he is looking into the matter of ghost touches and trying to fix it using kernel somehow.
[Sony Xperia S, Acro S, Ion] ilovechii:
Don't have option to enable Pie Controls?
[Sony Xperia S, Acro S, Ion] Mirhawk:
Nope, no Pie Controls. You could request it as a feature though.
[Sony Xperia S, Acro S, Ion] RFelizardo:
Hey guys, while following the instructions to flash the rom and gaaps i accidentally wiped the sdcard when changing the format to f2fs. Im still in TWRP afraid of turning off my mobile phone. How can I copy the rom and gaaps back to the phone? thanks in advance
[Sony Xperia S, Acro S, Ion] moe18:
U can push the Rom and gapps trough adb command "adb push"

As example: adb push (the route of file you want to push) /sdcard
[Sony Xperia S, Acro S, Ion] Solargarden:
Same problem for me. Any solutions?
[Sony Xperia S, Acro S, Ion] RFelizardo:
Yup did some digging and finally was able to successfuly push with the adb command. did everything else by the book and am rebooting as we speak. do you know if im able to change the sdcard file system to f2fs after the rom has been flashed?
[Sony Xperia S, Acro S, Ion] berda77:
Re

If no chance with adb push, the only way is to flash stock Rom via Flashtool
[Sony Xperia S, Acro S, Ion] RFelizardo:
Yep got it to work. Just booted into the new ROM. A pop up keeps flickering (maybe an error message) but it dissapears so fast I cant read what it says. Any Ideas?
[Sony Xperia S, Acro S, Ion] moe18:
Yes you can format sdcard to f2fs after installing the rom but u will lose all data on sdcard. And about the pup up msj I cant help u cos im on uCyan not nAOSP rom.

Try installing rom again.... Jonestly I dont know :p
[Sony Xperia S, Acro S, Ion] RFelizardo:
It's the android keyboard that stops working :\ so basically i have no keyboard right now
[Sony Xperia S, Acro S, Ion] berda77:
Re

Try to clean keyboard cashe and data in app menu and reboot. If no use you can easily reflash CM12 or Xperia keyboard.
[Sony Xperia S, Acro S, Ion] RFelizardo:
Tried that didnt work. Installing GApps instead of Aroma just to check if its not that :)
[Sony Xperia S, Acro S, Ion] berda77:
Re

If you like AOSP keyboard just reflash this one

http://xdaforums.com/mi-2/development/port-cm12-keyboard-aosp-t3066682.

I don't think there is a prob with Aroma Gapps cause I used them on nAOSProm-5.1-b20/21, uCyan-12.0-b03/b04 and uCyan-12.1-b01 and never had any problems at Roms startup.
[Sony Xperia S, Acro S, Ion] RFelizardo:
When I installed the aroma gapps i got an error with the permissions when it tried to uninstall the "old" apps so maybe thats the problem. Just flashed the gaaps and am waiting for the phone to optimize. Will report back soon.
[Sony Xperia S, Acro S, Ion] marcustut:
Does this rom compatible with Xperia SL? I heard it's the same with Xperia S
[Sony Xperia S, Acro S, Ion] :
In fact all S/SL Roms are cross compatible. Happy flashing ;)
[Sony Xperia S, Acro S, Ion] Mirhawk:
Hopefully You meant S/SL, and not S/SP.
[Sony Xperia S, Acro S, Ion] saizad04:
low volume level on B21, how to fix?
[Sony Xperia S, Acro S, Ion] RFelizardo:
Everything is running smoothly. One more question. How do I write my apps to the internal storage ? It doesn't seem to have that option!
[Sony Xperia S, Acro S, Ion] TheHippyHacker:
Hi, thanks for your amazing work! could you add camera2 api? ;)
[Sony Xperia S, Acro S, Ion] gsarhellas:
Kernel

What is the best overclockable kernel, please provide link for download, instructions how to flash it and best settings for everyday use. Many thanks in advance!
[Sony Xperia S, Acro S, Ion] water27:
Can't play video for Nike training club, is there any setting need to be made?
[Sony Xperia S, Acro S, Ion] Mirhawk:
The kernel that comes with the ROM is overclocked, so no need for other kernel.

For instructions on how to flash, You can go here.

Settings depend on as per use.
[Sony Xperia S, Acro S, Ion] memingonultas:
twrp error

guys please help me.I flashed twrp file with flashtool.But i cant get out of twrp mode now.What should i do?
[Sony Xperia S, Acro S, Ion] Mirhawk:
Flash the boot.img from the ROM zip via flashtool. To flash TWRP, go here.
[Sony Xperia S, Acro S, Ion] memingonultas:
I tried to flash twrp file i did it.But i can not enter to twrp mode.
[Sony Xperia S, Acro S, Ion] Mirhawk:
Are You able to boot into the ROM? If yes, which version of TWRP did You use while following the guide I linked? You should be able to boot into TWRP following that method.
[Sony Xperia S, Acro S, Ion] memingonultas:
Sorry i dont understand.First i will flash boot.img and then i will flash twrp?
[Sony Xperia S, Acro S, Ion] berda77:
Re

You need to flash that boot.img via Fastboot or Flashtool for entering twrp recovery where you can proceed with installation of 5.xx. The boot.img you were provided a link has in-built twrp recovery, but after successful installation of 5.xx you'll have to flash twrp recovery in Fota partition
[Sony Xperia S, Acro S, Ion] adienware:
how to flash oc kernel?

Hi, I know how to flash the default kernel but the oc. Please help.
[Sony Xperia S, Acro S, Ion] Mirhawk:
The default kernel is OC'd one. You can increase it's frequency from Developer Options in Settings.
[Sony Xperia S, Acro S, Ion] adienware:
that's not visible. See the attachment. Also what isvthat code for - echo ultra> property/persist.kernel.oc
[Sony Xperia S, Acro S, Ion] vishals16:
You don't have that option in developer option anymore(since b20 i think). Use trickster mod or similar apps to overclock the cpu and gpu.
[Sony Xperia S, Acro S, Ion] adienware:
Also I'm getting an error while installing Facebook saying application not installed. :/
[Sony Xperia S, Acro S, Ion] vishals16:
You must be installing it via backed up apk. It happens between different android versions. Install it from playstore.
[Sony Xperia S, Acro S, Ion] adienware:
The playstore also keeps on installing for ever after d download ends but never finishes. So I downloaded an apk from web to install and while installing that it gives an error - application not installed.
[Sony Xperia S, Acro S, Ion] :
uuups.. I did, sry. Changed my previous post ;)
[Sony Xperia S, Acro S, Ion] Talum.kn:
Help me with my sd card is not accessible no storage.

PS. I'm not good at English.
[Sony Xperia S, Acro S, Ion] Talum.kn:
no storage

Help, I can not access sd card has no storage.

sorry for bad english.
[Sony Xperia S, Acro S, Ion] hobo Ab:
Hello. Xperia SL, nAOSP b21. Such problem: Bluetooth headset SBH80 works well when playing the media, but when you call I can not hear the caller and the caller hears only wheeze. Jabra is working well, I hear, hear me. SBH80 with another phone also works well. Can you help? Thank you.
[Sony Xperia S, Acro S, Ion] RedBlooDerp:
APK wont open

Idk if I'm retarded or anything but why does it say "cannot open file" when i try to install an apk? And why arent there basic apps like play store and stuff like that? Again i might be retarded so dont be mad pls ;-;
[Sony Xperia S, Acro S, Ion] vishals16:
You need to flash gapps with the rom. You can find them here. They will work with 5.1. Select any one you want.

Download and flash them in recovery. Then you will have play store and other google apps.
[Sony Xperia S, Acro S, Ion] RedBlooDerp:
Thank you my friend, one question tho how do I open the recovery? Because when I installed the rom from my old recovery something got replaced and I cannot open my recovery with spamming the volume up button. Also the the phone doesnt boot sometimes... It just does those 4 colour balls animation and nothing happens, and sometimes it does turn on but still cant find recovery.
[Sony Xperia S, Acro S, Ion] vishals16:
You need to install a recovery first.

Download twrp from here. Rename it to fotakernel and place it on sdcard of the device. Install terminal emulator. Open it and run the following commands.

su

dd if=/sdcard/fotakernel.img of=/dev/block/mmcblk0p11

You will have a working recovery. Reboot Device and press volume up when led turns pink. Flash the gapps.
[Sony Xperia S, Acro S, Ion] RedBlooDerp:
Heres some more probably dumb questions, sorry.... How do I install the emulator if I can't even run apk files? When I try to run an apk file it says "can't open file". Did I do something wrong? Can i just install twrp with flashtool?
[Sony Xperia S, Acro S, Ion] vishals16:
Ohh sorry man. I forgot you can't install apks.

Then download doomkernel from here. Extract the zip and flash the kernel using flashtool. Reboot the device and enter recovery.

Now wipe data, cache, dalvik cache (Better this way). Then flash the rom and gapps. Then you can install recovery afterwards. You cannot flash recovery using flashtool. It needed to be installed on fota partition. After flashing rom you can easily install terminal emulator and install recovery.

PS: If I helped you and everything works fine, please press the thanks button at the bottom right corner of the posts. Thanks :)
[Sony Xperia S, Acro S, Ion] germanchoop:
Anyone test the FM Radio? i cant get work, what kernel are installing?
[Sony Xperia S, Acro S, Ion] hobo Ab:
Yes, I tested, it works. b21. But there is a bug with SBH80.
[Sony Xperia S, Acro S, Ion] Chupik1994:
I have reboots when change governor in KernelTuner. How to reproduce:

Change governor to Interactive

Restart KernelTuner

Change governor to any other

Sometimes phone reboots when i start CPU-Z.
[Sony Xperia S, Acro S, Ion] Solargarden:
/* Sorry, I made a mistake. Please delete this post. */