Develop Bugs

[Q] Up/downgrading with Knox

Hey guys,
I'm planning on installing CM10.2 stable on my galaxy s4 mini ( to check if the network-dropout problem i encounter sometimes still occurs)..and because i'd like CM better anyway. But before doing this i got a question about the KNOX- bootloader on my phone..
I already rooted my phone and installed CWM... the KNOX flag is triggerd 0x1.
Can i just install CM from the menu in CWM like in most descriptions ? Or is the KNOX bootloader going to give me troubles?
On another website I read this, and now i'm a little bit confused :
By downgrading from KNOX-enabled to KNOX-disabled firmware, your device will be locked to installation of newer firmwares.
Keep the above statement in mind all the time whenever you decide to flash a stock rom. Be careful not to flash a firmware that doesn't have KNOX.
CM10 probably got no KNOX right ? Am i still able to install this ROM ? And is it possible to go back to stock rom just in case i need to get it back to the shop for maintenance?
Thanks in advance.

Mascarponi said:
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Short answer : Yes u can install CM 11 / 10.2 . U will have trouble to install OLDER STOCK firmware ( before Dec 2013 ones ) ( MH2, MJ7, etc will give u problems ) New ones, like ML4 , C1, D2 , etc will be ok.

SilviuMik said:
Short answer : Yes u can install CM 11 / 10.2 . U will have trouble to install OLDER STOCK firmware ( before Dec 2013 ones ) ( MH2, MJ7, etc will give u problems ) New ones, like ML4 , C1, D2 , etc will be ok.
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Ok thanks for your answer.
Is it true that this KNOX problem only happens when installing STOCK firmware ? Or also older custom-roms ?

Mascarponi said:
Ok thanks for your answer.
Is it true that this KNOX problem only happens when installing STOCK firmware ? Or also older custom-roms ?
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Its a problem downgrading stock roms
With cwm you can install any version of CyanogenMod at any time always keep in mind you have to full wipe when upgrade or downgrade
sent from my i9192 with CM11 by sekil

Okay thanks, will give it a try !
fburgos said:
Its a problem downgrading stock roms
With cwm you can install any version of CyanogenMod at any time always keep in mind you have to full wipe when upgrade or downgrade
sent from my i9192 with CM11 by sekil
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Click to collapse

S3 i747 Bricked please help!

Hello. today i hard bricked my galaxy s3 (assuming its hard bricked it wont turn on or go in recovery or download mode)
so here is what i did i live in Jamaica and im using a att model s3 i wanted to update to the latest firmware cause i was stuck on 4.1.1 so i searched the internet and finally found the update for 4.3 tried flashing it thru odin every thing went fine and dandy phone rebooted little green android guy showed up n the green bar was running across the screen...all of a sudden s3 shuts off...and guess what yup now it wont turn on...
i have moderate experience with flashing roms and such I've soft bricked and fixed before
any help before i go out spending money to fix this would be greatly appreciated .

not very knowledgeable about odin (only used it once to root my S3) , but might be some help in this thread. good luck.
http://forum.xda-developers.com/showthread.php?t=2549068
and here is a thread to update firmware to NE4.
http://forum.xda-developers.com/showthread.php?t=2808654
"all i can really do , is stay out of my own way and let the will of heaven be done"

thanks taking a look at it now will report back if i get any process

mrrocketdog said:
not very knowledgeable about odin (only used it once to root my S3) , but might be some help in this thread. good luck.
http://forum.xda-developers.com/showthread.php?t=2549068
and here is a thread to update firmware to NE4.
http://forum.xda-developers.com/showthread.php?t=2808654
"all i can really do , is stay out of my own way and let the will of heaven be done"
Click to expand...
Click to collapse
thank you so much for sending me that link it had just what i needed, saved me from ponying up my cash to a technician that would have more than likely over priced me currently running 4.3 dont know if i want to risk it and try updating to 4.4.2 tho

ChandaTM said:
thank you so much for sending me that link it had just what i needed, saved me from ponying up my cash to a technician that would have more than likely over priced me currently running 4.3 dont know if i want to risk it and try updating to 4.4.2 tho
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glad to hear your up and running. just remember that you CANNOT downgrade firmware or it will most certainly become a jtag brick.
IMHO the only reason to upgrade firmware is if the ROM i want to flash requires it , and even then i would think twice. just my two cents.:good:
"all i can really do , is stay out of my own way and let the will of heaven be done"

mrrocketdog said:
glad to hear your up and running. just remember that you CANNOT downgrade firmware or it will most certainly become a jtag brick.
IMHO the only reason to upgrade firmware is if the ROM i want to flash requires it , and even then i would think twice. just my two cents.:good:
"all i can really do , is stay out of my own way and let the will of heaven be done"
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Click to collapse
thanks for the advice don't think i'll risk it for an update 4.4.2
i just didn't like the feel of 4.1.1 thanks again

although...... i did eventually upgrade my firmware from mj2 to NE4. only difference i found was had to change updater scripts in older ROMs in order to flash them. again , my ¢2.
"all i can really do , is stay out of my own way and let the will of heaven be done"

IMHO the only reason to upgrade firmware is if the ROM i want to flash requires it , and even then i would think twice. just my two cents.:good:
"all i can really do , is stay out of my own way and let the will of heaven be done"
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Click to collapse
I completely agree with mrrocketdog on this.
Additionally, remaining on the 4.3 bootloaders should not prevent you from running KitKat ROMs. Many of the TouchWiz based KitKat ROMs state in the first post that you can run them on 4.3 firmware, with that caveat that you may need a custom kernel. Two kernels that work are the ones by Ktoonsez and ibuddler. ( ibuddler doesn't have a separate thread, but I linked to the Likewise ROM, which has links in the OP to his kernel. KToonsez has versions for TW and AOSP/CM ROMs in his thread. ) BTW, the ROMs will run on 4.3 but the custom kernel is needed to enable wifi and maybe bluetooth.
In some of the threads that start with saying you must be on the latest firmware there are posts in the thread of people running them while on 4.3 firmware and modem. I have seen people on CM11 and equivalent AOSP ROMs using 4.3 firmware. To play with Lollipop ROMs (5.0) you may be forced into updating past the 4.3 firmware.

dawgdoc said:
I completely agree with mrrocketdog on this.
Additionally, remaining on the 4.3 bootloaders should not prevent you from running KitKat ROMs. Many of the TouchWiz based KitKat ROMs state in the first post that you can run them on 4.3 firmware, with that caveat that you may need a custom kernel. Two kernels that work are the ones by Ktoonsez and ibuddler. ( ibuddler doesn't have a separate thread, but I linked to the Likewise ROM, which has links in the OP to his kernel. KToonsez has versions for TW and AOSP/CM ROMs in his thread. ) BTW, the ROMs will run on 4.3 but the custom kernel is needed to enable wifi and maybe bluetooth.
In some of the threads that start with saying you must be on the latest firmware there are posts in the thread of people running them while on 4.3 firmware and modem. I have seen people on CM11 and equivalent AOSP ROMs using 4.3 firmware. To play with Lollipop ROMs (5.0) you may be forced into updating past the 4.3 firmware.
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ok stupid question but something i've been curious about and always forget to google it when i have spare time.....kernels.....explain them in the most tech savy way possible such as pros n cons and such cause im having an issue with my phone being stuck on edge and its not the rom or modem.

Flashing CM12, need help (noob here)

Hey guys!
So I have my Xperia M currently running on stock firmware 4.3. Although I am happy with the current firmware with the exception of the low internal storage problem but everything needs to be updated regularly
I joined XDA for the very reason so as to flash a custom ROM for my XM but trust me when I say that you are dealing with a complete noob who is just lost in all the jargon associated with flashing a custom ROM. It means that I will be in need of a detailed guide to help me boot my very first custom firmware :3
Here are some details -
Running stock 4.3 firmware
XM single sim
Bootloader can be unlocked (Need a tutorial to unlock bootloader too)
Device not rooted.
Can anybody help me with this? I'll be happy to read out any existing tutorial threads as such
I was also worried about the storgae limitation within the XM, anyway to bypass it by installing CM12? Also what process do you follow when you take a backup of your device while installing a new firmware?
I am just looking for a stable and beautiful firmware for my aging XM :fingers-crossed:
Thank you for reading! :angel:

sumicool7 said:
Hey guys!
So I have my Xperia M currently running on stock firmware 4.3. Although I am happy with the current firmware with the exception of the low internal storage problem but everything needs to be updated regularly
I joined XDA for the very reason so as to flash a custom ROM for my XM but trust me when I say that you are dealing with a complete noob who is just lost in all the jargon associated with flashing a custom ROM. It means that I will be in need of a detailed guide to help me boot my very first custom firmware :3
Here are some details -
Running stock 4.3 firmware
XM single sim
Bootloader can be unlocked (Need a tutorial to unlock bootloader too)
Device not rooted.
Can anybody help me with this? I'll be happy to read out any existing tutorial threads as such
I was also worried about the storgae limitation within the XM, anyway to bypass it by installing CM12? Also what process do you follow when you take a backup of your device while installing a new firmware?
I am just looking for a stable and beautiful firmware for my aging XM :fingers-crossed:
Thank you for reading! :angel:
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Click to collapse
are you sure ? This will be lose your warranty?

Nicklas Van Dam said:
are you sure ? This will be lose your warranty?
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Click to collapse
Yeah it's better than not being able to experience Lollipop on XM
How's your experience with the new CM12?

Lollipop being the number one thing, the second is the battery life:
A
M
A
Z
I
N
G
*blink*

RedLedLight said:
Lollipop being the number one thing, the second is the battery life:
A
M
A
Z
I
N
G
*blink*
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Well the battery might be pretty bad for you to comment like this
So I shouldn't flash it then?

Can anyone please help me regarding this? :crying::crying:

Bootloader 4.4 and Firmware T999UVUEOH1

Hi guys, I have T999 I am on Likewise 4.1 dtmo and currently on the T999UVUENC2 modem/bootloader, which is version 4.3. I have not updated my phone in a while and now I'm searching the forums and have 2 questions:
1. Should I update my bootloader/modem to T999UVUEOH1? I have read that it fixed the stagefright bug. (I found it on sammobile)
2. Some ROMs in the ATT section, such as the S3 R3ARMED, which is also made for T999, call for the use of a 4.4 modem and bootloader, but there is no such thing available to us. How can I proceed to avoid a brick?
Thanks!

I just updated it and there is nothing new. Just keep calm and stay at NC2, i will test it's performance and battery life

Hey I have the same model but I ruined my stock ROM can u please help me provide ur firmware.

Dipesh Basnet said:
Hey I have the same model but I ruined my stock ROM can u please help me provide ur firmware.
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Why don't you download the stock rom from SamMobile?
Btw, this stock rom is WAYYYYY better than NC2. Better performance and very good battery life

How to install Adroid Kitkat on Samsung Galaxy J2 (SM-J200G)

A few day ago i am bought samsung galaxy j2.
It have installed lolipop 5.1.1 version but i don't like lollipop version because it was eating big ram and not giving external sd card write permission
I am root my galaxy j2 and i am void mobile warrenty because it have knox prottection
Help me how to install android kitkat verson on this mobile with root or without root ?
and where is i download kitkat rom for my device ?
Help me please i am not satisfied with lollipop version

Assuming that your phone can every support custom ROM's, it will depend on the type of custom ROM you'd like of which there are tons of great ROM's out there. Your first goal is to research which ROM you want but read this all the way through before you start. While you do that, the ROM's you are considering need to have a KitKat Android version (it might be depreciated). After that, you need to make sure to find the right ROM that works for your phone model and then follow the instructions on installing the custom recovery. This custom recovery will be used to wipe and then flash the new ROM to the phone (NOTE: wiping will erase all your personal data and apps so back up your app data first and if you want to also backup your apps). The ROM may or may not have pre-installed apps, however it will not have any Google Apps (including the Play Store) which means you'll need to find the right package online that fits your phone processor and android version to flash with but after the custom ROM. Anyways hope this helps and good luck ?
Using CM12.1 on my SGH-T999

which kitakat rom working on my galaxy j2 ?

You have to research that my friend
Using CM12.1 on my SGH-T999

AlienDrew said:
You have to research that my friend
Using CM12.1 on my SGH-T999
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i cant do this please sir research you which kitkat firmware works on my galaxy j2 help me sir

I think I found something
Naresh_P said:
i cant do this please sir research you which kitkat firmware works on my galaxy j2 help me sir
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Click to collapse
See if this explains my reasoning...
https://www.youtube.com/watch?v=JmvCpR45LKA