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lolmachine4

Senior Member
Dec 18, 2012
162
27
Since the latest firmware upgrade my SIM-cards are constantly dropping connections. It will switch from 5G to 4G and back endlessly, then crash and go offline alltogether. I already did a complete MSM restore, but it's still happening. So, I want to downgrade firmware again to see if this helps, because I never had any modem problems with older firmware.
Is it safe to downgrade firmware ONLY? I'm afraid of breaking my IMEIs.

This is a pretty widespread issue btw, theres a 16 page thread on OPs own forum and countless reddit-threads about this...
 

spart0n

Senior Member
Sep 5, 2018
527
100
LG G Pad 10.1
OnePlus 8T
Since the latest firmware upgrade my SIM-cards are constantly dropping connections. It will switch from 5G to 4G and back endlessly, then crash and go offline alltogether. I already did a complete MSM restore, but it's still happening. So, I want to downgrade firmware again to see if this helps, because I never had any modem problems with older firmware.
Is it safe to downgrade firmware ONLY? I'm afraid of breaking my IMEIs.

This is a pretty widespread issue btw, theres a 16 page thread on OPs own forum and countless reddit-threads about this...
I wouldn't think it's a big deal but honestly I would try a different rom first but that's my own opinion.
 

hightech316

Senior Member
Jan 27, 2011
1,192
194
github.com
Thank you for packaging firmware for the users running custom ROMs. Saves people so much time instead of upgrading firmware by flashing latest OOS , then back over to custom ROM.

I have a oneplus8t United States unlocked , I believe this would be the kb2005 ?

Reading through the thread, My understanding is that you cannot package 11.0.8.13.KB05AA? Which would be the latest for oneplus8t global , correct?
 

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  • 22
    Aim is to provide the latest firmware of OnePlus 8T specially to the Community ROM Developers, Contributors, Testers and Users.


    OnePlus Flashable Firmware (OnePlus 8T All Models)

    Code:
    #include
    /*
    * 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.
    */


    What is OnePlus 8T Flashable Firmware?
    Basically it's a set of firmware that are extracted from the latest OxygenOS Full ROM update payload then generate to the Xiaomi flashable firmware based zip with manually-written and re-zip then lastly upload them.


    DOWNLOADS
    You can get the latest updated firmware here:
    -> Latest Firmware <-​


    Frequently Asked Questions:
    What is firmware? Is it a full ROM or OTA package?

    Firmware is not a ROM nor OTA Package, it's a set of low-level drivers which helps the operating system do whatever it wants to do. It includes various things like Modem, Bluetooth, Bootloader, DSP and etc.

    Why should I update the Firmware?
    Firmware is provided from OnePlus Full OTA directly, and there are no sources for it to let developers build and edit it on their own like custom ROMs, so if you want to keep your device up to date always update your firmware!

    Do I need to update the Firmware If I'm an OxygenOS official or a custom ROM user?
    No, OxygenOS ROMs contain the firmware package from the payload.bin which I extract and provide here.

    Should I update my firmware monthly?
    Yes, Basically to follow the latest firmware optimization from OxygenOS to any Android Open Source Project Custom ROMs and to provide better experience.

    What are the supported models?
    • KB2000
    • KB2001
    • KB2003
    • KB2005
    • KB2007
    Important reminder (Before Flashing):
    Check your DDR type using ADB with the following commands
    adb shell getprop ro.boot.ddr_type
    Code:
    DDR 0 - represents your device is LPDDR4X
    DDR 1 - represents your device is LPDDR5

    How to update the firmware?
    1. You can use TWRP to flash this Firmware Update or
    2. You can also sideload the firmware.zip package via LOS/PE based Recoveries.
    3. On LOS/PE Recovery, select “Apply Update”, then “Apply from ADB” to begin sideload.
    4. On the host machine, sideload the package using: adb sideload <filename.zip>.zip
    5. On TWRP Recovery, you may directly flash the firmware zip file and reboot after the flashing process succeed.

    How to check the updated firmware?
    Usually, the modem gets updated with newer firmware, you can check it in Settings > About > Baseband.

    Note for Regions:
    Global or EU devices may use the EU firmware since they are shared in frequencies & volumes.
    Use Indian firmware for Indian devices.

    Source Code:
    - Github
    - Main project thread

    Credits:
    yshalsager (without his great work, nothing would be impossible. Big Thanks 😇)
    And to all Developers, Contributors, Testers, and Users out there!

    Donations:
    A donations was never necessary, my enjoyment is to help the community and provide the betterment of our android experiences. Every donations will really be appreciated and to be used to cover my time and efforts.
    8
    New OxygenOS Stable Firmware Release (DDR-0)
    • Version: 15.E.28_OTA_0280_all_2107310147
    • OxygenOS version: 11.0.10.10
    • DDR Type: 0
    • Android: 11.0
    • Region: EU
    • Filename: fw_kebab_OxygenOS_OnePlus8TOxygen_15.E.28_2107310147_ddcd_11.0-DDR0.zip
    • Filesize: 125.9 MB
    • MD5:
      Code:
      eac0bab001c30a5b888e147e328e8931
    • Download: Here

    New OxygenOS Stable Firmware Release (DDR-1)
    • Version: 15.E.28_OTA_0280_all_2107310147
    • OxygenOS version: 11.0.10.10
    • DDR Type: 1
    • Android: 11.0
    • Region: EU
    • Filename: fw_kebab_OxygenOS_OnePlus8TOxygen_15.E.28_2107310147_ddcd_11.0-DDR1.zip
    • Filesize: 126 MB
    • MD5:
      Code:
      6784c9a14b84ca2c565b3ac57f9c2d05
    • Download: Here
    5
    New OxygenOS Stable Firmware Release (DDR-0)
    • Version: 15.E.27_2107120935
    • OxygenOS version: 11.0.9.9
    • DDR Type: 0
    • Android: 11.0
    • Region: EU
    • Filename: fw_kebab_OxygenOS_OnePlus8TOxygen_15.E.27_2107120935_b276b8_11.0-DDR0.zip
    • Filesize: 125.9 MB
    • MD5:
      Code:
      e6c63c2c7821520a48457cd1eccb060f
    • Download: Here

    New OxygenOS Stable Firmware Release (DDR-1)
    • Version: 15.E.27_2107120935
    • OxygenOS version: 11.0.9.9
    • DDR Type: 1
    • Android: 11.0
    • Region: EU
    • Filename: fw_kebab_OxygenOS_OnePlus8TOxygen_15.E.27_2107120935_b276b8_11.0-DDR1.zip
    • Filesize: 125.9 MB
    • MD5:
      Code:
      05b2fd38a54563657b49b2ceb7983dab
    • Download: Here
    3
    Hello guys,

    if i'm DDR type 1 , i can't use this firmware or i can do something for use it?
    Wait for the July Update I will push both DDR 0 & 1 ;)