Extract and open boot.img on Android 5.1.1 - Galaxy S 4 Q&A, Help & Troubleshooting

I have a Galaxy s4 R970, running cm12.1 on Android 5.1.1. And I want to open the boot.img file on my phone (don't have a computer currently) so I can edit the kernel to allow overclocking.
This will be my first attempt editing a kernel, but I need to expand my horizons.
So, the issue I have currently is a PIE error in terminal trying to open the boot.img using unmkbootimg command. (some older utilities) found here (http://forum.xda-developers.com/general/rooting-roms/how-to-guide-extract-boot-img-android-t3114380)
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Although, I DO also have a rooted galaxy s aviator running jb, I would like to try to avoid using it as much as possible.
Any and all help is greatly appreciated!

Related

Build.prop help(DEV)

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hy guys. Im starting in the android world, as you can see i ve succesfully built AICP from source, even managed to remove a few apps from the build, made my own gapps(using banks minimal gapps and google camera and google chrome), also removed stock launcher and replaced it by nova launcher and changes default dpi
My next step in rom building ll be to change everything that is related to D802 in about phone to D806(its the same phone,different number)
Ofcourse i could change the build.prop manually once the zip is built but thats not the idea, wanna do it before building, could someone help me?
Thanks in advance.
Raagh

sm-g530bt and variables

as it would be a safe way to test the variables sm-G530 in the sm-g530bt?
safe and put the SM-G530 alternative it?
how can I make a security copy of the already boot loader that has modified rom him
If it is safe I don't know, but you can try. Some people says the sm-g530h roms works in the sm-g530bt. You can try and tell how it goes.
Do you want a general backup? Root your phone, put TWRP in it, do the backup from recovery and copy it to a secure place. After, you can install the rom. The phones isn't too different, so a terrible brick isn't supposed to occur
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Root Directory running out of space

So, I recently rooted my Moto E3 Power, it has a stock rom.
After rooting , I realized my root directory has really less space, idk why
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Points you might need to know to help me :
My device had gone into a bootloop after rooting for the first time, but I hadn't made a backup so I downloaded the stock rom from a website and flashed it over. It went well.
Is there a way to repartition this and increase size of root directory ?
Sorry if I made any mistakes, this is my first post.

Blackscreen after flashing stock rom

After testing LineageOS over the weekend I wanted to go back to stock EMUI, so I downloaded the newest firmware from Team MT (FullOTA v167421) and flashed it via TWRP. That went through without any errors so I rebooted the phone and now I got nothing.
Basically whats described in this thread. (/huawei-p8/help/huawei-p8-black-screen-adb-recovery-t3663103 ;sorry, cant post links)I can't enter the bootloader, when connected to the PC neither adb devices, adb wait-for-device, nor fastboot-devices show anything. The only sign of life I have is in the device manager.
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Any help would be appreciated.
For anyone with the same/similar problem: I didn't find a solution for this, gave up and sent it in.

how do i know my device is [Q] or [R]?

i am trying to install [A11][R][ARM64][A40][AOSP]PixelExperience
but it was fail at block_image_update("/dev/block/platform/13500000.dwmmc0/by-name/system" even that file is exists
install Disable_Dm-Verity or multidisabler is not working for this
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maybe this problem cause my devices is not [R}?
i want install custom rom to my device
and this is my stock rom
please give me some advice
now i was try [OneUI 3.1] [A40] Relk-OS and that is work
is there some way that using [R] roms for my device?
i have no idea what is [R] meaning
[Q] means it’s Android 10 based and [R] means it’s Android 11 based.

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