yashsingh1/xdaforums huggingface dataset:
[Upgrading, Modifying and Unlocking] GuneetAtwal:
sorry mate for not checking PM i am very busy these days due to exams also and requests for ROMs for other devices will download it thanks for your concern
[Upgrading, Modifying and Unlocking] ashishgamer:
Why is the development for the phone going slow? Cmon guys port some roms!
[Upgrading, Modifying and Unlocking] prasad12ka4:
Busy on other dev
[Upgrading, Modifying and Unlocking] Kushan.modi:
When we are going to taste & feel the smoothness of Jelly Bean:rolleyes:
[Upgrading, Modifying and Unlocking] GuneetAtwal:
becuase the system.ext4.tar is not extracting dude what can i do now i told a method to extract system folder from phone but nobody i bothered to do so:mad:
[Upgrading, Modifying and Unlocking] prasad12ka4:
[ROM] MIUI Test ROM (ported)

Below ROM is for test

May contain lots of bugs.

One can test and use it.

Backup your current ROM before trying.

Do tell me if any issues.
[Upgrading, Modifying and Unlocking] GuneetAtwal:
got it why you can't restore a backup from recovery i.e. because the recovery takes backup of /app folder only rest folders are not copied in your system.ext4.tar files and kitchen also reported this problem so someone use my method and provide a system folder @prasad you only do it so that i can make a Flasable Stock ROM for A15+ custom ROM development can also take place
[Upgrading, Modifying and Unlocking] ashishgamer:
Dude just make the rom using DarkBoid. It closely resembpes our rom
[Upgrading, Modifying and Unlocking] babai93:
Stock Karbonn_A15_System.ext4.tar

Whats wrong with you man? Already shared twice.

Had you downloaded same and checked ever?

check the screenshot with all the contents of system folder

​

download link : http://xdaforums.com/show...&postcount=366
[Upgrading, Modifying and Unlocking] GuneetAtwal:
hmmmm trying again
[Upgrading, Modifying and Unlocking] hkr1992:
can i post my system folder here .. i also have karbonn A15

can i post my system folder here .. i also have karbonn A15

:)
[Upgrading, Modifying and Unlocking] xyagnesh.davex:
where is WinZix Recovery Link And IS This ROM for A7 ???
[Upgrading, Modifying and Unlocking] hkr1992:
here is system files in attachment
[Upgrading, Modifying and Unlocking] hkr1992:
system files from 21-40
[Upgrading, Modifying and Unlocking] hkr1992:
these are system files( folder system ) of A15
[Upgrading, Modifying and Unlocking] kashish99:
For those having problems with speaker outpu[the speaker disconnects and connects automatically etc.]

Use mobo player it'll solve the problem for playing music/musicvideos.

Press thanks if it helped :D
[Upgrading, Modifying and Unlocking] prasad12ka4:
Where does A 7 come on A 15 thread?
[Upgrading, Modifying and Unlocking] Neo.Geek:
Can someone help me out here. I fixed all issues from DarkBoid ROM. Its fast and stable. Only problem I'm facing is that the phone cannot scan media from the external sd card. If anyone has a solution to this then please let me know. I will post the ROM as soon as it's fixed.
[Upgrading, Modifying and Unlocking] GuneetAtwal:
Thanks mate for your concern downloading ryt now will inform whether working or not
[Upgrading, Modifying and Unlocking] prasad12ka4:
Media scanner app is available in market ;)

Add that to the ROM and post
[Upgrading, Modifying and Unlocking] GuneetAtwal:
nope it had only app and bin folder
[Upgrading, Modifying and Unlocking] Neo.Geek:
Did that! Thanks. Worked. Final testing. Will upload tonight. :laugh:
[Upgrading, Modifying and Unlocking] Neo.Geek:
Still only half the media is scanned. Will need some more time to figure out whats wrong.
[Upgrading, Modifying and Unlocking] Neo.Geek:
DarkBoid ROM​

Fully working for A15​

Change Log:

Fixed Camera - Camera now clicks in full 3 MP

Jelly Bean style camera - Photosphere not supported

Added A15 lib files

MediaScanner app added

Bugs:

Media Scanner scans media after 3-4 reboots and takes some time.

Screenshots:

Download: http://www.mediafire.com/?02eometaalgsf1y
​

Installation Instructions:

Wipe Data/Factory Reset

Wipe Cache Partition

Wipe /system ( In Mounts And Storage )

Install Darkboid ROM

Wipe Data/Factory Reset

Reboot

Original Thread: http://xdaforums.com/showpost.php?p=36020824&postcount=1

All credits for the ROM to Santo_Rock

Say Thanks if you found it helpful :o​
[Upgrading, Modifying and Unlocking] ashishgamer:
what is your default storage? And is it detecting sd card?
[Upgrading, Modifying and Unlocking] prasad12ka4:
Good one
[Upgrading, Modifying and Unlocking] Neo.Geek:
Default storage I changed to phone storage and everything works fine. I think the media scanner just needs some time.
[Upgrading, Modifying and Unlocking] prasad12ka4:
I suggest use this if you face problems for media scanner:

LINK
[Upgrading, Modifying and Unlocking] Neo.Geek:
I tried that too. Just takes long time. But the media scanner on the phone works.
[Upgrading, Modifying and Unlocking] GuneetAtwal:
using some other Phone's ROM will give you some problems as the hardware is not 100% same so you will have to stay with these bugs untill and unles a ROM for only A15 is not made
[Upgrading, Modifying and Unlocking] Neo.Geek:
I fixed the media scanner issues. Now only thing remaining to be fixed is the JB camera. The gallery app crashes when you go to edit the picture. And also the contacts app fixed. Waiting for even more bugs to be found out before I release the final version of the ROM.
[Upgrading, Modifying and Unlocking] ashishgamer:
[MOD] Xperia Z sysbar

Xperia Z sysbar​

Credits:

Ben Ling

Me for porting :D

Screenshots:

Download:

View attachment SystemUI.apk
[Upgrading, Modifying and Unlocking] hkr1992:
:/

ohh... then tell me exactly which files i have to post
[Upgrading, Modifying and Unlocking] GuneetAtwal:
Can you post a benchmark Score on DarkBoid ROM and what do you want in a ROM as i am working on it

---------- Post added at 04:20 PM ---------- Previous post was at 04:10 PM ----------

leave it i have downloaded DarkBoid ROM as users have told me it is same as Stock ROM
[Upgrading, Modifying and Unlocking] Neo.Geek:
First run I had got a score of 1645. But second run this. On stock ROM it never went above 1500.

And as far as the ROM is concerned I'm happy with dark boid. It removed all the lags which were there on stock. Only thing I would want more from a ROM is better image quality and swap enabled kernel support.
[Upgrading, Modifying and Unlocking] Kushan.modi:
Even apolo player crashes many times better to remove that and keep stock music player as it is good & stable
[Upgrading, Modifying and Unlocking] Neo.Geek:
Apollo never crashed for me. It's working fine.
[Upgrading, Modifying and Unlocking] Kushan.modi:
U will come to know that soon, In my case when playing in background and doing slight multitasking suddenly that crash msg flash on screen
[Upgrading, Modifying and Unlocking] ashishgamer:
It should have a good UI! Its my first priority :P
[Upgrading, Modifying and Unlocking] Neo.Geek:
Even with music + whatsapp + stock browser. No crashes yet.
[Upgrading, Modifying and Unlocking] GuneetAtwal:
Bro My Backstreet MOD ROM series are famous for its Looks and Performance so you dont have to worry about it and one more thing Do you want onscreen buttons rather than capacitive buttons like Nexus Devices?
[Upgrading, Modifying and Unlocking] ashishgamer:
I hv already commented on fb about that. Secondly, can u create a rom like sense or timescape?
[Upgrading, Modifying and Unlocking] GuneetAtwal:
i am making it bit like Custom UI + Sony's UI
[Upgrading, Modifying and Unlocking] ashishgamer:
Nyc :). U can check ou the systemui i posted earlier
[Upgrading, Modifying and Unlocking] GuneetAtwal:
No need i will make it some what a hybrid btw aosp and Sony.
[Upgrading, Modifying and Unlocking] ashishgamer:
I m excited :)
[Upgrading, Modifying and Unlocking] GuneetAtwal:
I am gonna make it very fastly so you will get it very shortly for testing
[Upgrading, Modifying and Unlocking] hkr1992:
okk

ohkk ... buddy
[Upgrading, Modifying and Unlocking] GuneetAtwal:
Backstreet MOD v5.0 alpha

Hey Guys here is my Backstreet MOD v5.0

It is in alpha stage and as i don't have your device so can't test so if anyone can test will get credits for it and be appreciated

Things to be Tested

Camera

Music Player

Is any app crashing

Sound

Any Bugs Report

Leave specifications

I have'nt done any theming so try it and report here all problems!!

Final Version will be out soon!!

Download

Testers Needed If possible Provide me some Screenshots

Edit:- The file is in format .7z so convert it i=to .zip and flash in CWM
[Upgrading, Modifying and Unlocking] prasad12ka4:
No Download option in download link
[Upgrading, Modifying and Unlocking] GuneetAtwal:
Post updated..
[Upgrading, Modifying and Unlocking] ronak360:
miui

i have made miui ics rom but it is stuck in boot loop help:crying:
[Upgrading, Modifying and Unlocking] 0max:
i am using stock rom :confused:
[Upgrading, Modifying and Unlocking] ashishgamer:
Did u modify systemui and framework res for dual sim?
[Upgrading, Modifying and Unlocking] Neo.Geek:
Strange indeed! :eek:
[Upgrading, Modifying and Unlocking] 0max:
try using supercharger

http://xdaforums.com/showthread.php?t=1704268
[Upgrading, Modifying and Unlocking] Neo.Geek:
This is without supercharger in dark boid. Stopped all 3rd party apps and services.
[Upgrading, Modifying and Unlocking] GuneetAtwal:
Is it booting/working or not tell me this anyone??
[Upgrading, Modifying and Unlocking] kds171191:
RAM usage

How to regulate the RAM usage in this phone...??

all the apps installed are killing the 500 MB RAM so phone is becoming slow
[Upgrading, Modifying and Unlocking] ashishgamer:
Install advanced task killer
[Upgrading, Modifying and Unlocking] cooljay5:
If your phone is rooted, you can use "greenify" app from this forum(Please search) to hibernate the apps running in the background and use them only when you initiate them manually. This will save battery and RAM. But this works efficiently only on rooted devices....
[Upgrading, Modifying and Unlocking] avirk:
Bhai, can you PM me the Id and Password for this site?
[Upgrading, Modifying and Unlocking] ronak360:
yes but still in boot loop
[Upgrading, Modifying and Unlocking] ashishgamer:
What all did u exactly modify and how?
[Upgrading, Modifying and Unlocking] ronak360:
do u want to see my rom so i can upload
[Upgrading, Modifying and Unlocking] ashishgamer:
Nope i have got a crappy internet and it will take ages to download. Just tell which base rom and port rom u used and what changes u made

sent from another space using hybrid pigeons
[Upgrading, Modifying and Unlocking] babai93:
very nice, can you also create Samsung UI like Galaxy S Duos, I like it more!!.
[Upgrading, Modifying and Unlocking] ashishgamer:
thnx. BTW currently i m working on a xperia look alike rom and this is part of it. I have done some more changes which will be published with the ROM. even i like the s duos system ui. Can u give its systemui.apk? I will work on it after the xperia rom.

sent from another space using hybrid pigeons
[Upgrading, Modifying and Unlocking] prasad12ka4:
[ROM] bee moving

Just a Stock w719 Beautification (Nothing much new)

Installation:

Via CWM
[Upgrading, Modifying and Unlocking] babai93:
Stock SystemUI of Galaxy S Duos S7562

Ya Sure Ashish, Please find the Stock_SystemUI_of_Galaxy_S_Duos_S7562 attached.
[Upgrading, Modifying and Unlocking] kalrocking:
Its in chinese ?? Or option is there to change the language??
[Upgrading, Modifying and Unlocking] prasad12ka4:
Yes, language can be changed
[Upgrading, Modifying and Unlocking] kalrocking:
prasad download is not working .Its asking for some paasword on baidu pls help
[Upgrading, Modifying and Unlocking] kashish99:
Having problems with battery indicator on dark boid rom .showing wrong % Anybody else having same problem?please reply.
[Upgrading, Modifying and Unlocking] ronak360:
[ROM] MIUI (ported)

[ROM] MIUI (ported) rom do not boot stuck in bootloop
[Upgrading, Modifying and Unlocking] ashishgamer:
Dude it can nvr so exact percentage just approx. Its because systemui doesnt have png for all percentage.

sent from another space using hybrid pigeons

---------- Post added at 08:03 PM ---------- Previous post was at 08:02 PM ----------

It doesnt work. Its written test.

sent from another space using hybrid pigeons
[Upgrading, Modifying and Unlocking] nabeeleinstein:
okay so I got a few problems with the device

1st my power button is gone, it requires a very hard push to work properly, so I'm using tap tap app right now

2nd is the DSP manager thing

it works nicely on my Bluetooth headphones, but don't affect the wired ones at all

it also doesn't detect my car stereo aux

so I think its a more of a hardware problem

is it the same with all ?

BTW people suffering from lag and stuff,

if you are new to android, or

want a faster phone

do check out v6 supercharger

it really brings a difference to the phone :)
[Upgrading, Modifying and Unlocking] ashishgamer:
1. Even i had the power button problem. Just pull the rubber inside back cover down a bit and works like a charm!

2.use beats from dark boid. Dsp is ****

sent from another space using hybrid pigeons
[Upgrading, Modifying and Unlocking] prasad12ka4:
Passwords deployed
[Upgrading, Modifying and Unlocking] prasad12ka4:
[ROM] MIUI Test ROM (ported) V2

Made relivant changes in the ROM and uploaded

Check and revert. Booting now
[Upgrading, Modifying and Unlocking] ashishgamer:
Post screenshots

sent from another space using hybrid pigeons
[Upgrading, Modifying and Unlocking] ronak360:
what is password
[Upgrading, Modifying and Unlocking] ashishgamer:
Hey guys i have a humble request for all a15 users. If we all request we maybe able to get a separate forum just like they did with oppo find 5

Request here-

http://xdaforums.com/showthread.php?t=1660354

sent from another space using hybrid pigeons
[Upgrading, Modifying and Unlocking] x2pherm:
Nice..whats the password for the miui version 2 ?? Thanks
[Upgrading, Modifying and Unlocking] prasad12ka4:
PMed
[Upgrading, Modifying and Unlocking] ashishgamer:
Why dont you tell all of us?

sent from another space using hybrid pigeons
[Upgrading, Modifying and Unlocking] prasad12ka4:
Drop me a PM i will share you with it..
[Upgrading, Modifying and Unlocking] ashishgamer:
But why have you secured it with pwd?

sent from another space using hybrid pigeons
[Upgrading, Modifying and Unlocking] iron man 22:
i am new to android will rooting brick my phone
[Upgrading, Modifying and Unlocking] ashishgamer:
90% chance is it will be safe

sent from another space using hybrid pigeons
[Upgrading, Modifying and Unlocking] prasad12ka4:
But you must also know why you want to ROOT it... :)
[Upgrading, Modifying and Unlocking] iron man 22:
thank u to replay fast i want to block inapps ADD add block needs root permission
[Upgrading, Modifying and Unlocking] prasad12ka4:
which apps display Ads?

Get full versions of same from some online sites ;)
[Upgrading, Modifying and Unlocking] ashishgamer:
Be fearless and root it :D

sent from another space using hybrid pigeons
[Upgrading, Modifying and Unlocking] kashish99:
When I go to download supercharger its preview opens in a new tab but it does not display anything shows some error and I cannot dowloadbit.Can someone please upload a download link for it.Thanks in aadvance.
[Upgrading, Modifying and Unlocking] iron man 22:
After some research on net I final rooted my phone and installed bee moving thanks to prasad12ka4

For this nice thread on a15

((Why I can not over clock as it is custom ROM))
[Upgrading, Modifying and Unlocking] GuneetAtwal:
Here is my all in one Guide to make A Custom ROM

Dont forget to hit thanks button :)

Link: xdaforums.com/showthread.php?t=2195858
[Upgrading, Modifying and Unlocking] prasad12ka4:
the kernel is stock

its not modded thats why
[Upgrading, Modifying and Unlocking] iron man 22:
is miui rom have different ui than stock or just like( bee moving ) rom
[Upgrading, Modifying and Unlocking] prasad12ka4:
Different
[Upgrading, Modifying and Unlocking] babai93:
Not booting in my case.

Factory restored

Wape

Devil catch cleared

Installed zip.
[Upgrading, Modifying and Unlocking] ashishgamer:
Hey can u pm me its systemui.apk pls?

sent from another space using hybrid pigeons
[Upgrading, Modifying and Unlocking] iron man 22:
prasad12ka4 can u give password for miui ported
[Upgrading, Modifying and Unlocking] prasad12ka4:
Pm me
[Upgrading, Modifying and Unlocking] iron man 22:
what happened (do Junior Member are not provide password )

---------- Post added at 04:53 PM ---------- Previous post was at 04:48 PM ----------

sorry i got password
[Upgrading, Modifying and Unlocking] x2pherm:
mine too..not booting :(
[Upgrading, Modifying and Unlocking] rbnj0904:
Dates before 1980 Won't work

Hi Guys,

Thanks for the wonderful thread, I have successfully Rooted and installed custom Rom :).

I have one issue in the custom Rom, this issue was also there in the orginal Rom, I am unable to access dates before 1980 :/.

I have a few apps, like Astrology which require dates before 1970.

Please provide a fix for this issue.

Regards
[Upgrading, Modifying and Unlocking] rbnj0904:
Dates before 1980 Won't work

Currently using, DarkBoid ROM Tweaked

But i also tried MIUI rom, the issue is there in all ROM, including stock rom that came with the phone.

I cannot access dates before 1980 in any of the apps, Please do let me know if there is a fix for this.

Thanks you.
[Upgrading, Modifying and Unlocking] prasad12ka4:
No fix for it

sorry
[Upgrading, Modifying and Unlocking] rbnj0904:
Dates before 1980 Won't work

Thanks for the response, Is it possible in the future to get this fixed?

Like with any other Rom? or upgrading from 4.0.4 ICS to any other version, i think this problem is specific to 4.0.4

Thanks
[Upgrading, Modifying and Unlocking] prasad12ka4:
Nope

Dev has stopped on this
[Upgrading, Modifying and Unlocking] ashishgamer:
what! why?
[Upgrading, Modifying and Unlocking] prasad12ka4:
Cause nothing new to move into it..
[Upgrading, Modifying and Unlocking] ashishgamer:
Dude jb?

sent from another space using hybrid pigeons
[Upgrading, Modifying and Unlocking] prasad12ka4:
What JB?
[Upgrading, Modifying and Unlocking] santiagoruel13:
hoping that xda will grant you your wishes:D

in the philippines .,, a company named Cherry Mobile has been rebranding karbonn mobiles and its been a hit :D

i ,, too ,, managed to get one,, titan tv,, a rebranded karbonn a30 ...

its been solid ,,, with games on par with SGS2 like nba 2k13, NFS mw,, Real Racing 3, MC4, Heroes of Order and Chaos :D

karbonn mobile at its best ,, cheap,, affordable,,, no **** at all :D

cheers to karbonn mobiles :D
[Upgrading, Modifying and Unlocking] ashishgamer:
Jelly bean?

sent from another space using hybrid pigeons
[Upgrading, Modifying and Unlocking] prasad12ka4:
Which one resembles A15?
[Upgrading, Modifying and Unlocking] iron man 22:
after trying most of launchers even tsf shell i got touchwiz 4 mod launcher it works very smooth makes feel like dualcore
[Upgrading, Modifying and Unlocking] Neo.Geek:
Stock ICS ROM

Tweaked for Performance​

Changelog:

Removed all preinstalled apps.

Pre-rooted

Busybox added

Added Nano and Bash

Bravia Engine

Camera quality improved

CRT Screen off

Zipaligned all apks for faster access

Lockscreen theme changed to default ICS

USB storage mount image from DarkBoid ROM

Statusbar icons MOD (Credits: 0max)

JB animations

JB 4.2 swipe keyboard

Nexus bootanimation

Launcher changed to Trebuchet

Build.prop tweaks added

Improved battery life

Screenshots:

Download: http://www.mediafire.com/?94pt1sv9tpt934c​

Installation Instructions:

Wipe Data/Factory Reset

Wipe Cache Partition

Format /system ( In Mounts And Storage )

Install Stock ICS Tweaked ROM

Wipe Data/Factory Reset

Reboot

Note: It is recommended to supercharge your phone with this ROM for best performance. Link

PS: Themers are welcomed to use this ROM for theming but only with my permission.​
[Upgrading, Modifying and Unlocking] Neo.Geek:
Glad that you liked it.
[Upgrading, Modifying and Unlocking] prasad12ka4:
[ROM] bee Fashion7.5.0.1

Change Log:

+extremely smooth status bar

+The signal shift left

+dial-up SMS

+RE Manager to join the white background version 4.2 camera

+Join Radio

+Baidu input method

+holoHD starter

+apple holly blackbody

+adding titanium backup

Note: Backup before flashing
[Upgrading, Modifying and Unlocking] ashokjagan:
Error while flashing the ROM getting invalid zip file error
[Upgrading, Modifying and Unlocking] Neo.Geek:
Someone else please check this issue. If no one getting this error then you will have to download the file again

Sent from my A15
[Upgrading, Modifying and Unlocking] Kushan.modi:
I flashed my karbonn a15 successfully without any problem and loved the boost speed, might be some problem in ur download...try downloading again

Sent from my A15
[Upgrading, Modifying and Unlocking] prasad12ka4:
Download again!!
[Upgrading, Modifying and Unlocking] Neo.Geek:
Did anyone try this ROM? Does the 4.2 camera/gallery work (photo studio)? If it works then please upload the apk file and send me the link. I will make it the default camera app for my ROM

Sent from my A15
[Upgrading, Modifying and Unlocking] Nishchay1:
Hello guys . I have managed to find a jellybean 4.2 rom . It is for the ZTE device (chinese ) which is based on the same chipset ( msm7627a) and has the same amount of ram karbonn a15 has .

Will this rom work on our devices ?

Please check out and tell . The device is same as ours !

Here is the rom link !

Test and report people !

http://www64.zippyshare.com/v/62085928/file.html
[Upgrading, Modifying and Unlocking] prasad12ka4:
you can download and try it :)
[Upgrading, Modifying and Unlocking] Neo.Geek:
That's the problem. I'm out of station for a month. No Internet connection. Completely dependent on my 3G connection.

Sent from my A15
[Upgrading, Modifying and Unlocking] adifrank:
Can you post the quadrant score?
[Upgrading, Modifying and Unlocking] x2pherm:
Wow..nice ROM..can I try it? Is it okay if you can PM me the password? Thanks :)
[Upgrading, Modifying and Unlocking] prasad12ka4:
sent :p
[Upgrading, Modifying and Unlocking] 0max:
which version of beats audio works on a15 ?

I tried many but didn't work

darkboid ROM has awesome beats

am I the only one who is getting cracking bass in headphones ?? ( with musicfx and dspmanager )
[Upgrading, Modifying and Unlocking] 0max:
after installing

Stock ICS ROM

Tweaked for Performance

i am unable to take nandroid backup in cwm

:-\
[Upgrading, Modifying and Unlocking] prasad12ka4:
What is the error you face?
[Upgrading, Modifying and Unlocking] 0max:
while backing up it hangs and phone goes off

its about DATA folder

i checked the back up there was backup of system

but when i tried to restore system it showed MD5 mismatch error
[Upgrading, Modifying and Unlocking] ashishgamer:
Dude it also depends on headphones. I hv skull candy and it provides decent bass

sent from another space using hybrid pigeons
[Upgrading, Modifying and Unlocking] 0max:
yah but phons has poor bass output :(

i have HPM-70 which work outstanding with my zylo
[Upgrading, Modifying and Unlocking] Neo.Geek:
Data backup never worked with this cwm.

Sent from my A15
[Upgrading, Modifying and Unlocking] 0max:
it worked with stock rom
[Upgrading, Modifying and Unlocking] Neo.Geek:
Well it never worked for me. So i don't know about it.

Sent from my A15
[Upgrading, Modifying and Unlocking] hkr1992:
wifi stuck on "connecting to internet"

my wifi stuck on "connecting to internet"

I tried many wifi fix apps ; backups ; and other routers too

bt nothing helped .. plz provide me anything which is flashable via stock recovery coz phone is not rooting now ..tried many ways

there is some files gone ..I messed up with system files ..what I do NW .. wifi not working more
[Upgrading, Modifying and Unlocking] ashishgamer:
If u messed up system files then it is recommended that you should flash the rom again

sent from another space using hybrid pigeons
[Upgrading, Modifying and Unlocking] hkr1992:
thnnxx

but how to flash rom again .. my phone is not rooted

where to get a15 system stock rom