restoring backed up stock roms modem to a custom rom - Xiaomi Redmi 4X Questions & Answers

I would just like to know what would happen if i tried restoring a backed up version of the stock modem that come with my phone through TWRP. would it be safe or would i have a bricked phone by the end of it?

hi,
though I'm not experienced with that, it appears to be safe to restore a modem at the Redmi Note 4X.
Unsure about Redmi 4X but I'm interested too.
edit: there's already a discussion about flashing modems at XDA unter FIRMWARES:
https://forum.xda-developers.com/xiaomi-redmi-4x/how-to/firmwares-t3682965#9
bR

What is unsafe is having a Marshmallow firmware for a Nougat ROM and up, if you plan to use Nougat or newer I'd recommend flashing 37_PA, the newest firmware from Global Dev MIUI, firmwares should be always universal unless it's noted, some MIUI update also comes with a firmware, if you see some Nougat ROM they'll ask you to update to a newer firmware if you were on Marshmallow, which is why MIUI 8 (MM) to 9 (N) will also update your firmware
TLDR; if your backed up firmware is from Marshmallow and your ROM is Nougat or newer no it's not safe, otherwise everything is good, if you want to update firmware just flash the boot.img from TWRP

hey thatnks much imma check it out

alright ill try this out as well thank you

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Eva-l09gbrc555b134

Hello All
I have unlocked bootloader and rooted my P9, but have recentley seen an OTA come through to turn my current version to B160.
I understand that I need to flash a stock Rom in it's entirety (re-lock BL and lose root) before I can proceed with the OTA?
The issue I have now is that my current build number does not appear to be available anywhere as a stock rom. I am in the UK and with the 'Three' network.
If anyone can point me to the stock ROM for my build or can recommend another stock Rom to flash that will work without issues, I'd very much appreciate it? :good:

Baseband?

Hello XDA comunity i have a note 4 in which i have installed Dr. Ketan Rom. Now I want to install a Note 7 port but the ones i found require some baseband that should end in EPE3 or something, but my baseband ends in DOK2. The question is, what happens if i proceed with the installation? Would it brick my phone? What are the consequences? Thank you. :fingers-crossed:
For note 7 roms you need any marshmallow baseband.
Flash any marshmallow stock firmware in odin then flash twrp recovery.
Now you can flash any note 7 Roms.
Dok2 is lollipop baseband if you flash note 7 Roms it will not boot.and your sim and wifi will not work
So do i wipe everything and flash a marshmallow firmware first and then flash the note 7 rom or how do i do it? Thank you

[Z2 PRO] Is downgrade from 7.0 to 6.0 possible?

Is it possible to downgrade from 7.0 to 6.0 just flashing the rom with QFIL? I'm facing some problems with the Quick Charge in the Nougat Stock version and I want to do a downgrade. Mine isn't rooted and the bootloader is locked.
gugax10 said:
Is it possible to downgrade from 7.0 to 6.0 just flashing the rom with QFIL? I'm facing some problems with the Quick Charge in the Nougat Stock version and I want to do a downgrade. Mine isn't rooted and the bootloader is locked.
Click to expand...
Click to collapse
yep possible flash stock qfil 2.3.044 or any marshmallow version
it is possible to downgrade your rom using QFIL method.. backup your data first
It is even possible through TWRP I was able to downgrade from Stock ZUI 2.5.381 Android 7.0 to MIUI 8 Android 6.0.1 without any problem just factory reset through TWRP before install the MIUI 8 based on 6.0.1 and the TWRP even show while installing the it is taking the current new kernel 3.18.... and it is adopting it for the 6.0.1 ... I really like this feature .... and yes everything works fine no problems all features works fine no drivers problem or other interruptions ...
If I buy this phone, should I avoid upgrading to 7.x? `

The latest bootloader and modem for android 7.0

Hello
Please help, I'm looking in the topic of the latest bootloader and modem for android 7.0 and so it can be installed via ODIN ..
I found something myself but it does not work and I do not know if it is the latest one, please help.
N920C
What variant do you have? I have the N920i. If I knew how to grab the latest bootloader/modem I'd totally do it for you.
I don't think the bootloader's changed since MM!?
Either way, download a rom from Samdroid. But be warned, to get root - you may need to unlock the bootloader in settings and flash twrp.
I need a file to install in ODIN

Global Update 10.1.1.0 safe to update?

I just got OTA Update to 10.1.1.0
Iam still on locked bootloader but want to unlock as soon as i can and flash AOSP
Is there any disadvantage like ARB when i update?
I think the ARB is just when going from one version of MIUI to a previous MIUI version. I think you should be okay when wiping everything and then flashing AOSP
Hi there,
Same question I have. I am on miui 10.0.3.0 and with twrp and rooted with magisk. /unlocked bootlooder of course/
Just got ota update to 10.1.1.0
Phone is global roms are official from xiaomi.
Rooting was a pain in the a** so I really dont want to mess it up about this encrypted issues…
AFAIK are all AOSP Roms for Dipper based on Pie. So it should be easier to switch the rom if your are already on a Pie based Stock rom. So go ahead and good luck for the AOSP-Trip. :fingers-crossed:

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