Does the oneplus 3 have fastboot ROM package ? - OnePlus 3 Questions & Answers

Hi Community,
I like to know whether Oneplus 3 have fastboot ROM package to have a complete clean ROM install? I have come from from MI5 which having the same Snapdragon 820 processor and had fastboot ROM. I case device did any misbehave, it was very easy to flash Fastboot rom.

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Questions about installing first rom on Global version

I have the 3GB Global version and have a MIUI version of MIUI Global 9.5 | stable 9.5.6.0 (OEIMIFA).
I have already unlocked the bootloader and from what I can tell fastboot getvar anti says im on anti 3
I was wondering what all I have to do to get lineageos on my device? Ive seen mentioned in guides to update the firmware and in others including the lineageos wiki its not mentioned. Ive also seen mentions of lazyflasher to keep twrp but its not in that wiki either.
Do I need to update my firmware? Do I need to use lazyflasher or is "fastboot flash recovery twrp-x.x.x-x-whyred.img" enough?
soggypancakes said:
I have the 3GB Global version and have a MIUI version of MIUI Global 9.5 | stable 9.5.6.0 (OEIMIFA).
I have already unlocked the bootloader and from what I can tell fastboot getvar anti says im on anti 3
I was wondering what all I have to do to get lineageos on my device? Ive seen mentioned in guides to update the firmware and in others including the lineageos wiki its not mentioned. Ive also seen mentions of lazyflasher to keep twrp but its not in that wiki either.
Do I need to update my firmware? Do I need to use lazyflasher or is "fastboot flash recovery twrp-x.x.x-x-whyred.img" enough?
Click to expand...
Click to collapse
To install lineageos 15.1, you need to have at least firmware version 8.7.5 and an encrypted device.
Assuming you still have miui 9.5.6.0 installed in your device and not updated to newer version of miui, you have to install firmware version 8.7.5.
As you still have anti 3 on your device it is highly recommended not to update your firmware any higher then 8.7.5, as it is the last firmware with anti 3.
If you already updated your device to a newer miui firmware with anti 4, DO NOT INSTALL ANY FIRMWARE. YOUR PHONE WILL BE HARD-BRICKED.
Instruction to install lineageos -
go to fastboot of your device
connect to pc and run fastboot commend "fastboot getvar anti"
if it shows anti version 3 - flash firmware version 8.7.5
if it shows anti version 4 - DO NOT FLASH ANY FIRMWARE. YOUR PHONE WILL BE HARD-BRICKED.
(assuming you already unlocked your device and installed proper recovery)
Go to recovery
select wipe > advance > select everything (data, system, cache, dalvik, internal, vendor) and swipe right.
do not touch the format data option at all or it will decrypt your device and you have to install full miui again via fastboot to encrypt the device again.
Now go to reboot menu and reboot to recovery.
after it boots back to recovery transfer the ROM and other files (ROM, gapps, magisk etc.).
Flash the rom, gapps etc.
here and here - more information about anti rollback.

Go back to MIUI Redmi Note 5?

Hello, I have installed some days ago HavocOS, but I'm experiencing some crashes on apps I do use regularly, so I want to go back to MIUI, but I'm scared to brick my device because the antirollback, I do know my last MIUI version installed was something like 10.0.6.0, but I dont know if it's exactly the same that is in Xiaomi official download page. What should I do to not brick my device? Can I install the developer ROM with no issues? Or how could I know what ROM exactly I had before? I have no backup of MIUI whatsoever and my anti-rollback code is 4.. Thanks in advance.
Boot phone to fastboot and check your ARB version with this command:
fastboot getvar anti
I think you will have ARB 4 version.
You can only brick your phone when you will downgrade ARB 4 -> ARB 3.
Then download latest MIUI stable (1.0.0.6) from xiaomi website (fastboot version) and flash it with miflash.
Visit en.miui.com/a-234.html
Download fastboot rom and flash it using miflash
What about twrp backup of miui 10?? Will restoreing it brick my phone??
install latest pitchblack recoveryfrom here then install any miui recovery rom you want

Question about ARB

Hi I just got my Mi Max 3 (I ordered the blue 128gb CN version But I got the black 128gb CN version but thats another story) Ofcoruse the supplier had unlocked the bootloader and flashed Gobal version of miui 10.1 and that version I suppose should have enabled the anti rollback on the phone
The first thing I did was to flash twrp with treble support with fastboot flash recovery twrp.img then downloaded xiaomi.eu miui 10.2 rom and removed the ARB files from the zip file (only kept 3 firmware files) and flashed it successfully. I have read that if you have anti rollback enabled you need to flash the twrp.img from the booted twrp recovery but I never needed to do that so my question is therea way to check anti rollback status on phone? I know that the fastboot command fastboot getvar anti does not work on mi max 3.
I know that I can check the roms you dowload but I want to check my phones status? Any adb commands I can use?
I want to know if the supplier flashed the global rom miui 10.1 rom without the ARB files

[QUESTION] How to safety flash custom rom?

Dears,
In the past i flashed custom roms on few phones, but Mi A2 Lite is my first phone with A/B partition and with GSI ability.
1. There is any particular changes in flashing procedure in comparision to, for eg. my previous phone Redmi 3S? (fastboot oem unlock, fastboot flash recovery, install rom in TWRP and voila),
2. If there is - can someone explain it to me? Or maybe there is some good guide with wrong tags and i can't found it.
I have v10.0.12.0 rom version (july update).
Hi,
Maybe this will help you : https://github.com/tkchn/daisyinstall

Recovery Vs Fastboot ROM

Hello guys how u doing...
My question is what is the difference between Fastboot And Recovery ROM in terms of what files they have.
I know Recovery ROM can be flashed by recovey and fastboot is used when phone's recovery in not accessible.
If i am on android 9 (MIUI 11.0.3.0) and i want to downgrade to oreo (9.5.19) can i flash this 9.5.19 recovery ROM directly via custom recovery or Use mi flash tool.Please tell me the reason why u choose either method
Sidgup1998 said:
Hello guys how u doing...
My question is what is the difference between Fastboot And Recovery ROM in terms of what files they have.
I know Recovery ROM can be flashed by recovey and fastboot is used when phone's recovery in not accessible.
If i am on android 9 (MIUI 11.0.3.0) and i want to downgrade to oreo (9.5.19) can i flash this 9.5.19 recovery ROM directly via custom recovery or Use mi flash tool.Please tell me the reason why u choose either method
Click to expand...
Click to collapse
For upgrade/reflash/downgrade MIUI always use fastboot ROM and chose clean install. Custom recovery is better for rooted devices OTA MIUI update and for custom ROM's. And if you gonna play with ROM's be smart and unlock bootloader for easy fix if something goes wrong aka (un)bricking device.
Good luck
Sent from my unknown using XDA Labs
I'd be interested in this question too. Is there any difference in what those versions contain?
Fastboot ROMs are much bigger usually, like double the size. Is this only due to the recovery versions beeing compressed (better), or do the fastboot versions contain additional data?

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