¿Can Flash Firmware to P20 (Eml-l09) via dload? [Without Bootloader Unloked] - Huawei P20 Guides, News, & Discussion

Hi everyone
I found a stock rom without carrier logos and apps, I think free carrier too
My question is ¿Can Flash the firmware whit a dload method? Im not have bootloader unlocked so...
Im in emui 9.1
Patch security 01/03/2020

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downgrading question

Hello all
I have a question regarding downgrade.
I have a g5 xt 1676 dual sim 16 gb, 3gb ram. Now i am running npps 25.137-72-4 version. As u all know.. getting firmware for full flash is a pain for moto g5. I got this phone in some old firmware, and got two ota updates since then .. and it became 25.137-72-4 version..
Now i want to reflash it to stock firmware. I already have an unlocked bootloader .
So my question is.. since i have unlocked bootloader.. can i downgrade?
I have this firmware - CEDRIC_NPP25.137-33_cid50_subsidy-DEFAULT_regulatory-DEFAULT_CFC
As you see.. this is 25.137-33
This is the latest i could get. ( Please feel free to share any updated firmware if you have, a twrp backup of untouched stock firmware will also work)
I am concerned about bootloader brick ( if any of you run 25.137-33 firmware, can you please share a picture of booloader screen, so that i can check if its the same as 25.137-72-4.)
So my plan is..
Since i have unlocked bootloader,
1) i hope i can flash 25.137-33 ( dont know if it works since i have updated firmware already) .
2) relock bootloader while flashing
3) receive ota update to update the 25.137-33 to 25.137-72-4.
And stay happy with a locked bootloader with complete stock firmware.
I dont know if this plan works, but i hope i can flash the downgraded firmware since i have unlocked bootloader.
So my primay concern and doubts are..
1) can i downgrade if i have an unlocked bootloader
2) is the bootloader of 25.137-33 same as that of 25.137-72-4
Please help me to solve these.
Below is the bootloader screen of my current firmware. 25.137-72-4
Can any one please check if it matches with the firmware 25.137-33
Any help for anyone? Can i downgrade with An unlocked bootloader?
Hi, I have the XT1670 variant, 32gb single sim
Currently running NPP25.137-93 firmware (actually a debloated version of that firmware).
Here's the picture of my bootloader I think it's the same as yours, I'm not sure if you can downgrade the bootloader, I have flashed the NPL25.137-33 several times in my phone and it always gives me error in the two first flash commands, this being "flash partition got.bin and flash bootloader.img"
The phone still reboots and works as it should
So can you downgrade? Yes I have done it and never had a problem
Can you relock your bootloader? I'm not sure
And I'm not sure if bootloader brick is a thing either
I hope this helps
Sorry I cant upload the picture but my bootloader version is: B8.23 (sha-8fcce1f, 2017-08-04 11:32:36)
salsaelpato said:
Hi, I have the XT1670 variant, 32gb single sim
Currently running NPP25.137-93 firmware (actually a debloated version of that firmware).
Here's the picture of my bootloader I think it's the same as yours, I'm not sure if you can downgrade the bootloader, I have flashed the NPL25.137-33 several times in my phone and it always gives me error in the two first flash commands, this being "flash partition got.bin and flash bootloader.img"
The phone still reboots and works as it should
So can you downgrade? Yes I have done it and never had a problem
Can you relock your bootloader? I'm not sure
And I'm not sure if bootloader brick is a thing either
I hope this helps
Sorry I cant upload the picture but my bootloader version is: B8.23 (sha-8fcce1f, 2017-08-04 11:32:36)
Click to expand...
Click to collapse
You mean 25.137-33 is the version you have with b8.23 bootloader? If so its same.. not downgrade. But i dont know why u get flashing error even using same boot loaded.
1) flash partion got.bin - its the file that is responsible for repartitioning the nand memory and allocate partion for system, user data, kernel , radio, and all others..
2) flash bootloader.img - of course its the bootloader.. but how can it be error when u are flashing the same bootloader again
Do u have an unlocked or locked bootloader?
Unlocked bootloader, I have the version 25.137-93 with b8.23 bootloader, before flashing that firmware I had the 25.137-33 one with the same bootloader, there's a thread in the Moto G5 plus forum explaining how you can relock your bootloader, apparently it can be done, you have to relock your bootloader first in order to flash the complete firmware and receive ota updates
salsaelpato said:
Unlocked bootloader, I have the version 25.137-93 with b8.23 bootloader, before flashing that firmware I had the 25.137-33 one with the same bootloader, there's a thread in the Moto G5 plus forum explaining how you can relock your bootloader, apparently it can be done, you have to relock your bootloader first in order to flash the complete firmware and receive ota updates
Click to expand...
Click to collapse
if you have 25.137-93 full firmware, can you upload it?
showlyshah said:
if you have 25.137-93 full firmware, can you upload it?
Click to expand...
Click to collapse
Sorry I got it from a thread here in XDA but it's a debloated Rom
salsaelpato said:
Sorry I got it from a thread here in XDA but it's a debloated Rom
Click to expand...
Click to collapse
Can you link that forum thread? So that i can ask the dev if he have it?
showlyshah said:
Can you link that forum thread? So that i can ask the dev if he have it?
Click to expand...
Click to collapse
Sure here is
https://forum.xda-developers.com/g5/development/rom-debloated-optimized-t3722396

want to go back on stock rom and relock bootloader

Plss help me i unlocked the bootloader and installed twrp after that my system app deleted like Huawei care and not applying themes and font i formated the phone but not worked i wamt to go back on nougt or oreo beta rom currently twrp working fine pls help me
Download Huawei Multi-tool 8. There is an option to relock your bootloader using your own keys.
From reading the forum: DO NOT downgrade from Oreo or you will brake your phone!
Download update.zip for your particular device from: http://pro-teammt.ru/firmware-database/?firmware_model=BND&firmware_page=0

Should I update to MIUI 10 by OTA or unlock bootloader to flash MIUI 10

I just bought the redmi 6 pro which unfortunately is the Chinese version but not minding almost all I see in the phone is in Chinese and I use Google translate to read few things here and to be frank, I love the phone and will keep maximising how interesting it will be. I saw an update alert in the settings to download and install an update as shown in the picture below but I keep seeing people who write about unlocking bootloaders and tweaking their phones. Apart from installing custom ROMs, themes, etc; what else is in this hype of unlocking bootloaders? Hope it is safe to update from OTA? Though I use to be tech zealous about custom in my previous Android phones but I've come to just love and stay in peace with the official ROM of this device and wouldn't want altering any of it's official settings.
If you have China version with CN Miui (ODICNFD) you can do OTA update.
You need to unlock bootloader if you have China version with Indian Miui (ODMMIFD) and want to do OTA update.
You must be sure which version of phone and which version of Miui you have
mar.ur said:
If you have China version with CN Miui (ODICNFD) you can do OTA update.
You need to unlock bootloader if you have China version with Indian Miui (ODMMIFD) and want to do OTA update.
You must be sure which version of phone and which version of Miui you have
Click to expand...
Click to collapse
I screenshot my settings and the update notification. Am I good to update as shown.
mar.ur said:
If you have China version with CN Miui (ODICNFD) you can do OTA update.
You need to unlock bootloader if you have China version with Indian Miui (ODMMIFD) and want to do OTA update.
You must be sure which version of phone and which version of Miui you have
Click to expand...
Click to collapse
Please help me clarify if my baseband that started with .TA made my phone ROM fake or tampered with
dikachik1 said:
Please help me clarify if my baseband that started with .TA made my phone ROM fake or tampered with
Click to expand...
Click to collapse
I have modified bootloader and installed Indian rom on CN version
If I check my product name
fastboot getvar product
It says sakura_ Indian
That why I can't do a OTA update without unlock bootloader because I have CN version with modified bootloader.
Just check your version in fastboot mode (btw your box of Redmi 6 pro has to be red and with Chinese characters. If it is correct you can do OTA update without unlock bootloader.
mar.ur said:
I have modified bootloader and installed Indian rom on CN version
If I check my product name
fastboot getvar product
It says sakura_ Indian
That why I can't do a OTA update without unlock bootloader because I have CN version with modified bootloader.
Just check your version in fastboot mode (btw your box of Redmi 6 pro has to be red and with Chinese characters. If it is correct you can do OTA update without unlock bootloader.
Click to expand...
Click to collapse
I have R6 pro China pack
How can I install India rom on it?
Please help
smfazel said:
I have R6 pro China pack
How can I install India rom on it?
Please help
Click to expand...
Click to collapse
First of you have to unlock bootloader. Then Check in fastboot mode name of your phone. "fastboot getvar product". If you have sakura just unpack Miui global fastboot rom and edit flash_all.bat and flash_all.sh by notepad++ and change sakura_india to sakura. Then install it with miflash. Use only clean all, don't use clean all and lock!
mar.ur said:
First of you have to unlock bootloader. Then Check in fastboot mode name of your phone. "fastboot getvar product". If you have sakura just unpack Miui global fastboot rom and edit flash_all.bat and flash_all.sh by notepad++ and change sakura_india to sakura. Then install it with miflash. Use only clean all, don't use clean all and lock!
Click to expand...
Click to collapse
U need to download both ROM same version n extract it . Just copy n replace flash_all.bat cn version to indian global n copy rbv.img from cn to indian ROM images folder. After successful flashing u need to unlock bootloader again if not u stuck in recovery mode.
( remember ur mi account n password)

i can't up grade my mia2 lite from android 9 to android 10 via OTA

please give me solution ,my mia2 lite didnt get notification from OTA update ,so my phone still on bulid 10.0.20.0 ,what I can do to get notifiction from OTA again
I believe this process works...
https://forum.xda-developers.com/mi-a2-lite/how-to/fix-stucked-11-0-2-0-update-t4150481
If you have an unlocked bootloader you can just flash a current fastboot image.
a1291762 said:
I believe this process works...
https://forum.xda-developers.com/mi-a2-lite/how-to/fix-stucked-11-0-2-0-update-t4150481
If you have an unlocked bootloader you can just flash a current fastboot image.[/QUOT
my phone are still in locked bootloader ,I ve ben try to flash firm ware from oficial MIUI build 11.0.4.0 but not succeded its error in side load ,so the flashing is abborted , did you have any sugestion for it
Click to expand...
Click to collapse
kuz15 said:
my phone are still in locked bootloader ,I ve ben try to flash firm ware from oficial MIUI build 11.0.4.0 but not succeded its error in side load ,so the flashing is abborted , did you have any sugestion for it
Click to expand...
Click to collapse
The link I posted. It uses the recovery to install official software so you don't need an unlocked bootloader.

Hi guys! My SM-G988U DUB5 [OneUI 3.1] flashing vbmeta_disabled An error

Can everyone help me? thank you
device:SM-G988U
Unlock the BL
firmware:oneUI 3.1 DUB5
Can someone answer me?
remove all screen locks
try again. load all the firmware in it. bl, ap,cp,home_csc, vbmeta
zhouyuchen said:
Can someone answer me?
Click to expand...
Click to collapse
After unsuccessfully trying to root latest DUB5 firmware form T-mobile with Magisk - found a solution:
1. Patch original T-mobile AP with Magisk.
2. Replace BL_N986USQU1DUB5_CL20936746_QB38027387_REV00_user_low_ship_MULTI_CERT.tar.md5 with any other Snapdragon BL image from Android 11 (Latest XAA will work).
3. T-Mobile apperently locks vbmeta to official state in latest firmwares.
4. If you do not repalce BL file, you will get an error "vbmeta_fail" and your phone will get locked.
Enjoy!

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