[ROM][12.0] DerpFest for Galaxy A20/A20e [OFFICIAL][a20/a20e]

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Mamo_grag17

Member
Nov 14, 2021
23
5
Samsung Galaxy A20
Guys please help, I have a lot of problems here, I can't install apps from google play it says no enough space or even download files from chrome, I can't use the camera.

I don't know where is the problem, I think it is from installation I wiped data then installed, then wiped data and dalvik, everything is not working even the settings, please help.
The stock ROM version before I installed was A202FXXU3CUE8.
@Royna .
 
Last edited:

haiise

Senior Member
Nov 7, 2021
183
14
Samsung Galaxy A20
Guys please help, I have a lot of problems here, I can't install apps from google play it says no enough space or even download files from chrome, I can't use the camera.

I don't know where is the problem, I think it is from installation I wiped data then installed, then wiped data and dalvik, everything is not working even the settings, please help.
The stock ROM version before I installed was A202FXXU3CUE8.
@Royna .
flash dm verity
 

mrnayhtetlin

New member
Feb 19, 2022
3
0
Samsung Galaxy A20
A20e or A20 custom room for A20s to use ok ?

A20e model number A202 or A20 model number A205 custom room for A20s model number A207F use ok ?
Pls help me !

Screenshot_20220713-104920_Settings.png
 

kamrannawaz

Member
Jul 20, 2022
43
1
i have installed the latest one which is but the problem is how to furthur tweak the kernel is there any way and another issue is that the camera which is built-in in this rom is not footaj camera but i want the camera app like stock rom has because that camera app has feature like wide-angle photo etc, is there any way to install that custom camera app.
 

haiise

Senior Member
Nov 7, 2021
183
14
Samsung Galaxy A20
i have installed the latest one which is but the problem is how to furthur tweak the kernel is there any way and another issue is that the camera which is built-in in this rom is not footaj camera but i want the camera app like stock rom has because that camera app has feature like wide-angle photo etc, is there any way to install that custom camera app.
use gcam 8.1 it features wide-angle
 

kamrannawaz

Member
Jul 20, 2022
43
1
another question i m noob here btw, is this rom update over the air or every time to flash when new update comes ? and i have seen another rom called spark os is this better or the derpfest tell me so i just want stable os in my device with OTA feature and camera & the adaptive brightness feature, in this rom the adaptive brightness feature is not working well.
 

or23_72c

Senior Member
i have installed the latest one which is but the problem is how to furthur tweak the kernel is there any way and another issue is that the camera which is built-in in this rom is not footaj camera but i want the camera app like stock rom has because that camera app has feature like wide-angle photo etc, is there any way to install that custom camera app.
I use Open Camera and I needed to add it to a build.prop file
 

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  • 1
    Listening to music and doing something else was impossible with the old kernel. Now it works and I have a lot more free ram. It makes some mistakes but those are fine
    ye better than old kernel
    1
    Does HBO Max and Disney+ work for you guys? I have no video but audio playing. I don't understand what going on. I have tried uninstalling, clearing data, clearing cache and dalvik, but nothing worked
    This thing happened to me as well, just off extra dim feature then Netflix, hbo and disney+ will work.
    1
    This thing happened to me as well, just off extra dim feature then Netflix, hbo and disney+ will work.
    It is off by default, I classify it as one of the features that I don't know and Don't need, so I never touched it. However, I made a factory reset of Derpfest, and now it seems to be working now.

    2nd Edit: HBO max is showing image, but disney+ is throwing an error but i'll dig into it aswell.

    Third Edit: Yes Disney+ works fine after the Factory Reset.
  • 15
    derp.png

    This is a small project based on AOSP. We try to be a platform for beginners and support the Custom ROM community with our own unique contributions as well. This ROM exists thanks to inspiration of AOSiP, Thank you! #StayDerped

    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.
    */

    GApps included!

    What's broken?

    - VoLTE (This depends on Samsung Frameworks)
    - Netflix HD (DRM Widevine)
    - On some a20e devices, NFC is dead. (Will be fixed on next release)

    IYoyzLd.png


    ROM - SourceForge : Official Derp SourceForge
    Screenshots, Notes, Changelogs in post #2

    Follow us on
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    XDA DevDB Information

    DerpFest for the Galaxy A20, A20e

    Contributors @Royna
    @Chatur27 for Eureka Kernel base

    ROM source: (Private)
    Kernel source: Eureka Kernel R9.2
    (https://github.com/eurekadevelopment/Eureka-Kernel-Exynos7885-Q-R-S)
    Device Tree: here
    ROM OS Version: 12.x
    ROM Kernel Version: 4.4
    Based On: AOSP


    Version Information

    Status: Stable
    Created 2021-12-02
    Last Updated 2022-04-08

    Thread base taken from https://forum.xda-developers.com/t/rom-12-0-derpfest-for-oneplus-7t-pro-official-hotdog.4250469/
    7
    Changelog:
    - 2021.12.02
    Inital xda release
    Note: SamsungParts Included in this rom is broken, replace the /system/priv-app/SamsungParts/SamsungParts.apk with this one

    - 2021.12.10
    Source Part: December SPL
    Device Part:
    - switch to pixel thermal hal
    - fix gcam giving black picture if photo was taken with flash for some people
    - make SamsungParts S-style
    - set some additional props/overlays for performance
    - enable NFC for SM-A202F (Some A202F don't have it but some do. Just enabled for all A202F)
    - F2FS /data /cache support
    Note: for broken dpi, goto /vendor/build.prop and edit ro.sf.lcd_density prop to 280

    - 2022. 01. 08.
    - Fix DRM WideVine (L3 -> L1) (Now HD Netflix etc works)
    - Fixup dpi for some devices
    - Swtich to Footej camera

    - 2022. 02. 10.
    - Switch to Eureka R9.0 Kernel
    - Now Eureka dtbo & dtb is included in the ROM zip
    - Fix Deep sleep with DT2W on for A20
    - Fix Status bar padding
    - Enable SystemUI rro target
    - Change zram default compress method to zstd
    - Enable samplerate support for bluetooth headsets (For BT calls)
    - Enable Wi-Fi MAC randomization
    Note: WiFi Hospot is broken, To fix, delete /vendor/overlay/WiFiOverlay folder (and its contents) and put this apk to /vendor/overlay on twrp or root explorer and reboot.

    - 2022.04.08
    - Wifi sharing works with Eureka R9.2
    - Now can access rear aux cam with custom camera provider hal
    - Implement Samsung's FMRadio
    - Use 8MP for front camera resolution
    - Merged LineageOS SamsungDap for parts
    - Misc overlays, props for performance improvements
    3
    ScreenShots
    3
    March SPL is delayed because there is no Android 12 with March SPL, but there is Android 12L now. Derp main dev is WIP merging now, will build after he finishes merge as soon as possible.
    2
    I know man I am now using dot os 5.2 but I want to test new features which I have never experienced in android 12.1
    Derp is dead, dev deleted the source. The eureka team said that only some roms would be coming out on this month. Ancient is dead for a20 probably so the only official 12.1 rom we have for a20 is Spark OS