can install custom rom without update bootloader - Samsung Galaxy J7 (2017) Questions & Answers

Hi every one
I have j730fxx with stock android 7.0
If I want to install custom rom android 10 on this device can install without update to oreo or pie
And if i install stock 8 custom rom the boot loader is updated
I watched
Thanks

It seems I don't find out how to start a new post! That's why I answer here. I have a Xiaomi Redmi Note 8T. Now I would like to install Lineage. Therfor I have to unlock the bootloader. Despite doing it all like it is written, the Mi Unlock Tool always spits out an error, see screenshot attached. It says nothing about 30 days wait, it simply doesn't work! Any ideas someone?

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unable to root redmi 2 prime 7.5.2.0 lollipop

recently i got an update from redmi about a new software with lollipop so i happily updated my phone from kitkat to lollipop (miui 7.5.2.0) but after updating i was unable to root my device.
i searched many places even i used this software to root "en.miui.com/thread-223314-1-1.html "
but i failed because what happens is after rebooting the mi logo shows up and even after 30 mins there is no progress. so it seems like bootloop but basically this is no bootloop as when i take out my battery and then reinsert it and restart it phone it starts and works fine. but i want to root it
please some senior expert or any developers kindly help me
Flash Custom Recovery Like TWRP..
en.miui.com/thread-228118-1-1.html
Then reboot into recovery and flash UPDATE-SuperSU-v2.46.zip from official site..
download.chainfire.eu/696/supersu/
Work for me..Hope work for you also..
Facing the same problem but still don't get any solution
Same here. I installed the MIUI8 Global Developer ROM and lost the TWRP recovery. The Phone is rooted but not able to re-install TWRP by any means. :/
I heard that Flashing the Fastboot ROM of the smartphone and reverting to MIUI Kitkat is helpful. I am downloading the MIUI 7 Kitkat Fastboot ROM.
Will inform you about the results!
indian_chynnus said:
recently i got an update from redmi about a new software with lollipop so i happily updated my phone from kitkat to lollipop (miui 7.5.2.0) but after updating i was unable to root my device.
i searched many places even i used this software to root "en.miui.com/thread-223314-1-1.html "
but i failed because what happens is after rebooting the mi logo shows up and even after 30 mins there is no progress. so it seems like bootloop but basically this is no bootloop as when i take out my battery and then reinsert it and restart it phone it starts and works fine. but i want to root it
please some senior expert or any developers kindly help me
Click to expand...
Click to collapse
CONFIRMED! If your Redmi is not rooting, then Revert to the MIUI 7 ROM. Flash the MIUI7 Kitkat ROM via Fastboot and then try to Root it. Everything will be fine. I Tried this and it worked.

[GUIDE] Error 7 Solution While flashing 7.1.2 ROMs

A brief Intro.
Starting from the 7.1.2 ROMs most of the developers decided to follow the process of checking modem version at the time of flashing the rom. Many peoples ended up in
"Error 7- assert(xiaomi.verify_modem("MSM8976.LA.1.0.c3-30041-STD.PROD-1.77504.1.83742.1") == "1")"
The main reason for this is the outdated firmware or it is happened to those who had unofficially unlocked the bootloader.
Some more info..
1. You must be on MM build bootloader. If you are unofficially unlocked bootloader it will give you ERROR7.
@TheStrix have alreday given a short information about it in his Official LineageOS thread. If you are unaware of it read it here
2.Outdated Firmware.
Your firmware must be from from MIUI Global DEV v7.5.4 or above.
Get MIUI Global DEV v7.5.4 from here
or the latest firmware from here
NB:-
- Iam using the MIUI Global DEV v7.5.4 firmware. All working fine including Volte. I dont know about the second one,you can give it a try.
-If you are unofficially unlocked ,MIUI Global DEV v7.5.4 will re lock your bootloader you will end up in bootloop.
- I will not be reponsible for any damages.
Solution 1 [Permanent Solution] ..
1. So if you are unofficially unlocked, i will suggest to clean flash the latest MIUI Fatboot Rom. Kenzo users get it from here.
2.Flash it using MIFlashTool ,and officially unlock it.
HOW TO UNLOCK THE BOOTLOADER OF REDMI NOTE 3?
PART 1 : REQUESTING FOR UNLOCK PERMISSION
Step 1 – Open up your favorite web browser in your computer (Chrome is recommended) then go to this link
Step 2 – You’ll see the official page of “Unlock Your Mi Device”. Now simply click on the blue “Unlock Now” Button in the middle of the page.
Step 3 – You’ll see a login page in the next page which is in Chinese. If you use Google Chrome to open the page, then you can simply use its built-in Google Translate feature.
Step 4 – Once logged in, you’ll see the Unlock Application Permissions page.Now simply fill in all required fields then click on that green Apply Immediately button.
Step 5 – In the next page, you’ll need to enter a verification code sent to you via SMS. Check your phone for any SMS verification sent by Xiaomi server. The code is usually valid for only 5 minutes so you need to enter it immediately.
Step 6– Once you have submitted the 6 digits code, you’ll then be redirected to another page saying that from the point toward all you need to do is just waiting for Xiaomi Developers to review and approve your application. Once approved, you’ll get another SMS which normally arrives in 15 min(Atleast for me. For some it may take time). The approval process is manual so just be patient on this.
PART 2 : BOOTLOADER UNLOCKING PROCESS
Requirements for Bootloader Unlocking :
-An active Mi account linked to your device, your phone number and it has permission to proceed with bootloader unlock (follow previous steps above)
-Please backup your data for just in case scenario.
-Again, if you are not fully aware of flashing custom ROM, then you better stay away of unlocking your phone’s bootloader.
Download Mi Flash Unlock tool for Windows here, and install it on your computer / PC.
Step 1 – On your device, please login to your Mi account.
Step 2 – Put / reboot your device into bootloader mode. To do that, simply turn off your device, press the Power button and Volume down ( – ) button at the same time.
Step 3 – On your computer, open MiFlash Unlock tool you’ve just installed. Click on the Agree button when asked.
Step 4 – Login to MiFlash Unlock tool with the same Mi Account.
Step 5 – Now connect your phone to computer using its USB cable.
Step 6 – Once your phone is connected, the Unlock button will become active. Next, simply click on the Unlock button to start the process. The unlock process will take about 10 – 15 seconds to complete. That’s all.
After unlocking your phone’s bootloader, you’ll be able to flash TWRP and other custom ROM. Enjoy..
Please take these as your concern upon unlocking bootloader :
One Mi account could only unlock one device within 30 days.
If you see a notice saying that “current user is not logged in connected device” then please reboot your device normally then login with your account in the device (see Step 1).
Unlocking bootloader will wipe all user data especially if your device is encrypted. That’s why you’ll need to create backup before going to proceed.
Neither Xiaomi or I will guaranteed if anything goes wrong during and as the result of unlocking. Proceed with your own risks.
Also, unlocked Xiaomi devices will be marked in the official service end.
PART 3 : Installing TWRP and Custom Rom.
Step 1 –. Get latest TWRP from here. Flash it via fastboot { I will not be explaining that in details}
Step 2 –. Take back up of EFS using Twrp. Wipe Everything including internal storage.
Step 3 –. Install Firmware-Rom-Gapps in order. Error 7 will be solved
Solution 2[Temporary Solution] ..
Only try this method if you are not able to officially unlock your device . Dont use the Firmware by Strix.It will relock your bootloader.
Step1 - Downalod the rom to your pc.
Step2 - Use any notepad. Suggestd one Notepad++. Get it from here
Step3 - Open the Rom.zip{dont extarct}. Navigate to META-INF/com/google/android/updater-script.
Double click on updater-script and open it with notepad++. Edit and remove this line from the file
Code:
assert(xiaomi.verify_modem("MSM8976.LA.1.0.c3-30041-STD.PROD-1.77504.1.83742.1") == "1")
Allow the file to save and close the zip.{Rom will recompress by itself}.
Step4 - Flash in order. Firmware -Rom-Gapps.
Some FAQ's ..
1. Iam not getting volte
Ans:- Restore the EFS. Try rebooting your phone 2 or 3 times. After Clean flash ,I had to reboot 3 times to get volte working. :fingers-crossed:
2.Iam not able to see FingerPrint Option?
Ans:- Your are defenitely on an old Firmware.Update to Latest Firmware It will work.
3.Iam getting Some other Errors. :crying:
Ans:- Post your Screen Shot Below.Will Check.
4.Iam getting some other problems in ROM.
Ans:- Report it with proper logs to the developer.Iam helpless.
5.I bricked my device
Ans:- I will Laugh at you. Always do everything at your own risk. :silly:
Some Advices ..
* At least use search once in your life time. From my observation its clear that no one ever uses search in the Rom Section. Even is there is a solution in every page you keep on asking same questions.
*Dont flood the thread.
*Dont qoute the whole op.
*Respect other members
If this was of help to anyone hit the like :fingers-crossed:
First
There's a problem with not updating the bootloader (aboot) and staying with a LP bootloader, you will most likely encounter bootloops. Say you edit that code line for the modem check, it will flash but it won't boot/work properly. You must update the bootloader in order to boot newer ROMs. And you need to update the modem and other stuff so you won't face issues. You need to offcially unlock no matter what you do, it's very easy.
Asphyxiate666 said:
There's a problem with not updating the bootloader (aboot) and stay with a LP bootloader, you will most likely encounter bootloops. Say you edit that code line for the modem check, it will flash but it won't boot. You must update the bootloader in order to boot newer ROMs. And you need to update the modem and other stuff so you won't face issues. You need to offcially unlock no matter what you do, it's very easy.
Click to expand...
Click to collapse
that's why I wrote temporary method..only for those who are lazy and not willing to start from root by flashing fastboot rom
adithyan25 said:
that's why I wrote temporary method..only for those who are lazy and not willing to start from root by flashing fastboot rom
Click to expand...
Click to collapse
I understand but with their laziness they will ruin their devices then come here and say "omg sir it doesn't boot wtf is this useless rom crap developers".
Asphyxiate666 said:
I understand but with their laziness they will ruin their devices then come here and say "omg sir it doesn't boot wtf is this useless rom crap developers".
Click to expand...
Click to collapse
I know that...most people don't even bother to use search..even if there is a solution just above their question they won't give a damn to look it..
guys help..i had officially unlocked the bootloader..and i don't remember the firmware i had installed...n i am still getting the error code 7..do i need to flash the kenzo global or dev firmware from the link..??
PrathaM X said:
guys help..i had officially unlocked the bootloader..and i don't remember the firmware i had installed...n i am still getting the error code 7..do i need to flash the kenzo global or dev firmware from the link..??
Click to expand...
Click to collapse
you must format your phone (not wipe) using twrp then install fw-rom-gapps...use fw by strix from above method(permanent)
I flashed v8.5.1.0 using MiFlash and it said flash completed successfully. However now it is stuck on the Mi splash screen with "powered by android" logo at the bottom. The dots are moving so I assume it is loading but it's been on that same screen for the past 10 minutes now.
Previously, the bootloader was officially unlocked but some stuff broke as I tried to upgrade to a new ROM and that's why I decided to flash v8.5.1.0 in order to go back to stock and start from scratch.
Edit: It works!
adithyan25 said:
you must format your phone (not wipe) using twrp then install fw-rom-gapps...use fw by strix from above method(permanent)
Click to expand...
Click to collapse
I'm on Marshmallow boot loader (flashed faatboot ROM) and officially unlocked & formated data.
Yesterday I did a update RR ROM (9th july) then I got error 7.
at the time of flashing I was on latest firmware 7.7.6.
So reflashed 7.5.4 firmware and it's worked.
So we should always stick to 7.5.4 firmware ? For avoiding error 7?
baku2313 said:
I'm on Marshmallow boot loader (flashed faatboot ROM) and officially unlocked & formated data.
Yesterday I did a update RR ROM (10th july) then I got error 7.
at the time of flashing I was on latest firmware 7.7.6.
So reflashed 7.5.4 firmware and it's worked.
So we should always stick to 7.5.4 firmware ? For avoiding error 7?
Click to expand...
Click to collapse
yep..in my knowledge the latest firmware has a change in modem version(updated version) so it wont match with one in updater script... so i will say to stick with some older firmware unless the developers chabge it in the roms update-script file...
iam using strix fw 7.6.15
adithyan25 said:
yep..in my knowledge the latest firmware has a change in modem version(updated version) so it wont match with one in updater script... so i will say to stick with some older firmware unless the developers chabge it in the roms update-script file...
iam using strix fw 7.6.15
Click to expand...
Click to collapse
Can you provide me the link please.
baku2313 said:
Can you provide me the link please.
Click to expand...
Click to collapse
its in the aosp extended 4.4 update op...
im quite busy now...i will share it later if you havent found it .... you will find the link in aosp extended thread
adithyan25 said:
its in the aosp extended 4.4 update op...
im quite busy now...i will share it later if you havent found it .... you will find the link in aosp extended thread
Click to expand...
Click to collapse
Strix updated his thread with 7.7.6 firmware (Kenzo).
I am on MM on Redmi note 3 Snapdragon version! I tried firmware (7.7.0 I guess) and then ROM Zip but still got the Problem ! Any thing else I can do?
What if i have locked bootloader and flashed twrp through miflash?
coolguy22 said:
What if i have locked bootloader and flashed twrp through miflash?
Click to expand...
Click to collapse
In theory it should work I guess? Assuming you used the guide from @khajiit here you should have a MarshMellow bootloader, as the MIUI version linked there is based on MM (kate_global_images_6.11.3_20161103.0000.00_6.0_global_16db0fc5fa), so it shouldn't relock. Can't try myself since I unlocked mine recently.
Amon_Re said:
In theory it should work I guess? Assuming you used the guide from @khajiithere you should have a MarshMellow bootloader, as the MIUI version linked there is based on MM (kate_global_images_6.11.3_20161103.0000.00_6.0_global_16db0fc5fa), so it shouldn't relock. Can't try myself since I unlocked mine recently.
Click to expand...
Click to collapse
Ok so if i get the latest firmware and install some 7.1.2 rom it shouldn't bootloop?
coolguy22 said:
Ok so if i get the latest firmware and install some 7.1.2 rom it shouldn't bootloop?
Click to expand...
Click to collapse
In theory, it should work.
..

How to Go back to MIUI 10 From MIUI 11 ?

For some reason I didnt like the MIUI 11... and have some bugs also.. i like the miui 10... can anyone help me how to downgrade to miui 10 (10.3.6.0) ROM... any help will b greatly appreciated.
do i need to unlock Bootloader to downgrade ?
Can i downgrade to miui 10 via copying the MIUI 10 ROM in root directory of internal storage and flash it via setting>about phone?system update> select the rom zip and update ?
I would also like to downgrade back from Miui 11 to Miui 10 as it is far too buggy, random lockups, phone heats up/drains fast and needs rebooting every few days to fix, VoLTE no longer works on 2nd SIM.
I can't seem to download the Miui 10 latest stable ROM from en.miui.com as it only shows link for Miui 11 for my phone, can anyone help with the latest stable miui 10 download link?
MI9T has anti-rollback enabled, which means either you have to use Mi Flash, edit scripts inside .tar (stock firmware meant to be flashed through fastboot) and flash it, or unlock bootloader, flash twrp and install MIUI 10 zip.
How do you do that for Mi 9T?
How do you do any of what you said? I have mi 9T also like previous dude off xiaomi site my phone only has 11 to install as a room? Not 10..
mrp56 said:
I would also like to downgrade back from Miui 11 to Miui 10 as it is far too buggy, random lockups, phone heats up/drains fast and needs rebooting every few days to fix, VoLTE no longer works on 2nd SIM.
I can't seem to download the Miui 10 latest stable ROM from en.miui.com as it only shows link for Miui 11 for my phone, can anyone help with the latest stable miui 10 download link?
Click to expand...
Click to collapse
Done ! Unlock Boot loader (after Waiting 72 Hours), downloaded fastboot ROM 10.3.6 (MIUI 10)... FLASHED it via MI FLASH tool... after flashing I RELOCKED boot loader.
info2shail2010 said:
Done ! Unlock Boot loader (after Waiting 72 Hours), downloaded fastboot ROM 10.3.6 (MIUI 10)... FLASHED it via MI FLASH tool... after flashing I RELOCKED boot loader.
Click to expand...
Click to collapse
Where did you download it from, I could only find 11?
info2shail2010 said:
Done ! Unlock Boot loader (after Waiting 72 Hours), downloaded fastboot ROM 10.3.6 (MIUI 10)... FLASHED it via MI FLASH tool... after flashing I RELOCKED boot loader.
Click to expand...
Click to collapse
Can you please upload the zip somewhere ? cant find the file for my mi9T

Flashing Custom rom i get stuck at fast boot but flashing xiaomi.eu works fine

Hi,
I've done countless steps and watched a ton of videos today but still can't answer this and it feels like I'm missing something simple.
I received my xiaomi 9t today and quickly unlocked the bootloader (no wait time possibly because I had a Mi8 before hand so I already had an account). I've since installed TWRP as well as tried OrangeFox Recovery and still can't get any custom roms to work, it goes directly to the fastboot screen. I can get back into TWRP and flash xiaomi.eu rom, no issue but as soon as I go to a custom rom I get fastboot.
I've flashed my Mi 8 countless times but I can't seem to get this to go. I've tried making sure the mounts were correct, I've flashed a disable forced encryption thing that I saw on some youtube videos and still nothing works.
Thanks in advance,
Joe
AbsoluteZero said:
Hi,
I've done countless steps and watched a ton of videos today but still can't answer this and it feels like I'm missing something simple.
I received my xiaomi 9t today and quickly unlocked the bootloader (no wait time possibly because I had a Mi8 before hand so I already had an account). I've since installed TWRP as well as tried OrangeFox Recovery and still can't get any custom roms to work, it goes directly to the fastboot screen. I can get back into TWRP and flash xiaomi.eu rom, no issue but as soon as I go to a custom rom I get fastboot.
I've flashed my Mi 8 countless times but I can't seem to get this to go. I've tried making sure the mounts were correct, I've flashed a disable forced encryption thing that I saw on some youtube videos and still nothing works.
Thanks in advance,
Joe
Click to expand...
Click to collapse
Hello, what OrangeFox version did you install?
You should try with R10.1_1 if you are using latest one.
If your phone is working with xiaomi.eu ROMs..., do you know xiaomi.eu ROMs are custom ROMs?
You generally only have to "Format Data" in TWRP before flashing another ROM (stock or custom).
Good luck!
Hi,
Thank you for the reply. I now have OrangeFox R10.1_1 installed. sorry I should've said other custom roms aren't working xiaomi.eu seems to be fine for some reason.
I just installed OrangeFox, reflashed xiaomi.eu and booted, worked fine. Then I went back, formatted data, rebooted back to recovery, flashed AOSPextended and gapps pico. Rebooted to system and it went to the fastboot screen again. I noticed it says during the AOSP install that "Root Status: Disabled" could that be a problem?
Thanks again for your help.
AbsoluteZero said:
Hi,
I've done countless steps and watched a ton of videos today but still can't answer this and it feels like I'm missing something simple.
I received my xiaomi 9t today and quickly unlocked the bootloader (no wait time possibly because I had a Mi8 before hand so I already had an account). I've since installed TWRP as well as tried OrangeFox Recovery and still can't get any custom roms to work, it goes directly to the fastboot screen. I can get back into TWRP and flash xiaomi.eu rom, no issue but as soon as I go to a custom rom I get fastboot.
I've flashed my Mi 8 countless times but I can't seem to get this to go. I've tried making sure the mounts were correct, I've flashed a disable forced encryption thing that I saw on some youtube videos and still nothing works.
Thanks in advance,
Joe
Click to expand...
Click to collapse
Use the official TWRP.
You should install latest stable xiaomi.eu rom or install latest China rom through MI flash, you need latest vendor partition for latest custom roms to boot properly.
jaggyjags said:
You should install latest stable xiaomi.eu rom or install latest China rom through MI flash, you need latest vendor partition for latest custom roms to boot properly.
Click to expand...
Click to collapse
I installed the latest Global Rom 11.0.5. via OrangeFox. I couldn't get it to go with Mi Flash. Not sure how to create the flash_all.bat and where to get all the files from. Is that the same? What are the steps from here?
Thank you
The same exact issue I am facing. Tried multiple custom roms and everything failed to boot only resulting in bricked or error. Even my previous budget phone redmi 3s was much better than this.

Tried going custom on my OnePlus 8 Pro and now I'm dead in the water

Hello there! I've loved using twrp on several of my devices over the years and tried today on my OP 8P and each version that I have tried lands me with the Qualcomm CrashDummp Mode.
I'm guessing I haven't found the right version. I have been on the latest update from OnePlus. An update today made everything weird, so I decided to go with a custom ROM thru twrp. Now I'm here!
So far I've unlocked my bootloader and tried flashing to both of my partitions.
I've tried:
twrp-3.4.0-2-instantnoodle-unified-mauronofrio
twrp-3.3.1-0-instantnoodle-unified-mauronofrio
340 Oneplus 8 pro mauronofrio
Anything else I can try flashing?
spydieee said:
Hello there! I've loved using twrp on several of my devices over the years and tried today on my OP 8P and each version that I have tried lands me with the Qualcomm CrashDummp Mode.
I'm guessing I haven't found the right version. I have been on the latest update from OnePlus. An update today made everything weird, so I decided to go with a custom ROM thru twrp. Now I'm here!
So far I've unlocked my bootloader and tried flashing to both of my partitions.
I've tried:
twrp-3.4.0-2-instantnoodle-unified-mauronofrio
twrp-3.3.1-0-instantnoodle-unified-mauronofrio
340 Oneplus 8 pro mauronofrio
Anything else I can try flashing?
Click to expand...
Click to collapse
You obviously don't read. It says next to the twrp download that its NOT compatible with Android 11
You gotta read for every ROM installations and every mods
Hi if u want to flash a custom ROM first check what type of ROM u are flashing, whether its Android 11 or 10. If u are flashing Android 10 custom ROM, when ur Oneplus 8 Pro is running Android 10, u can do it by unlocking bootloader and flashing TWRP recovery.
If u have updated ur OnePlus 8 Pro to Android 11, then u cannot flash TWRP as its incompatible. U have to unlock bootloader, install recovery image given in the ROM download page and flash the ROM via abd sideload in the recovery menu.
If ur OnePlus 8 Pro is bricked here is the unbrick tool. Download the ROM and flash it via MSM download tool by going to EDL mode.
[OP8PRO][OOS 11AA/BA/DA] Unbrick tool to restore your device to OxygenOS
Disclaimer: By attempting any of the processes listed in this thread you accept full responsibility for your actions. I will not be held responsible if your device stops working, catches fire, or turns into a hipster and claims to have been...
forum.xda-developers.com
Make sure u have the right drivers installed in ur PC.
For going to EDL mode refer this video
Then next thing: Post ur doubts or questions next time in Q&A section. Research well before u start flashing my friend. It ll be easier and smooth.
Take care.
Yep @paarry I was mislead by an article I read that has instructions for twrp be installed on a OP 8P a few months ago. I later realized that I never found anywhere else that said it was possible no matter where I searched, certainly not their official site.
Well, I fixed my problem by ceasing to try any more twrp versions and pivoting to @CarbonROM and so far it's been good.

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