How to Install Firmware via ADB Sideload on Android

In this video, we will show you the steps to install the firmware/ROM on your Android device via the ADB Sideload method.

The biggest advantage of this method is that it doesn't require an unlocked bootloader. So you could easily use ADB Sideload on a locked bootloader without the need for a factory reset or voiding your device's warranty.

On the other hand, if something goes wrong during sideload, then it could prove to be a difficult task [as the bootloader is locked so you cannot use the flashing process]. Apart from that, you cannot use this method to perform a downgrade.

You can only use ADB Sideload to install the same or higher version of the OS, never the older version!

If we talk about sideloading custom ROMs, then they usually do require factory reset [either before or after flashing the ROM, verify with the respective developers], however, in those cases, you cannot use the stock recovery for this task. ADB Sideload with Custom ROMs is only possible via a custom recovery [such as LineageOS Recovery or TWRP].

[ExhumedWolf]

Super helpful. Thank you for the details.

[gamerblackops]

help please, my pc sees the device, when i type adb reboot recovery it turns the phone off and restarts but doesnt go into the screen yours does? nokia g11

[saadmanahmedsaimon]

Can I go to stock rom from custom ROM like this?

[Volk_Prizrak]

Can I do with a scatter.txt file firmware ?

[denzo]

Can i do this for evo x too? for update?

[willemmyburgh]

day my phone is stuck in bootloop so i want to use adb to load firmware but it says device unauthorized. please help

[kingofporotv]

when i root my phone, by accident, i root 2 time my phone. ( take wrong devices . im newbies ).
I have the bootloader deleted and crashed. once im on ADB, it said that my devices are offline to do sideload. What can i do ?

[pradeepJAMES]

Super sir make more videos on custom roms on redmi note 10 pro

[FunnyFrioxPH]

Hello sir I have a question which custom ROM is better Pixel Experience Plus or Project Elixir?

[The_Axhat]

when i tries to open boot reloader it is showing that my device is unauthorized... what to do now?

[machinelearningtensorflow]

I am trying update from sd card

From mobile real me c11 2021

Rmx3231 a.123

But while unzipping it says


Permission denied


Footer is wrong

Signature verification failed


Mey you tell me what should I do?


Mey you reply?

[herman]

I can't understand half the things you say.