yashsingh1/xdaforums huggingface dataset:
[Xiaomi Mi A1 Guides, News, & Discussion] Gyro01:
I wanna backup an mi a1 without root, and oem LOCKED (never checked oem unlock in dev options) and I have 2 questions

1. How can I install qualcomm drivers if I don't have "other devices under the device manager list ?

2. Do I have to do the test point process if the phone is stuck in bootloop ?

thanks
[Xiaomi Mi A1 Guides, News, & Discussion] saski4711:
Question: I have a MiA1 with missing LTE band 20 (broke it somewhere playing around with custom ROMs) and another identical MiA1 with working LTE. Can I use this tool to copy the NV configuration between identical devices in order to get the missing band back on the faulty one? If so what partition(s) do I need to copy?
[Xiaomi Mi A1 Guides, News, & Discussion] prorooter007:
Just flash another modem file from twrp.

https://xdaforums.com/mi-a1/themes/twrp-baseband-modem-april-stock-rom-t3777901
[Xiaomi Mi A1 Guides, News, & Discussion] saski4711:
Nope already tried different moden blobs didn't work at all :( I guess I've riuned something when I tried to get my BT mac back with persist resurrector months ago. Manually unlocking LTE band 20 worked partially (Network signal guro shows band 20 again) but still no LTE band 20 reception.
[Xiaomi Mi A1 Guides, News, & Discussion] stillKonfuzed:
Follow this guide from Kunal Shah

Procedure

1. Download fastboot stock Oreo zip

2. Go inside the stock folder

3. Go inside images folder

4. Check for persist.img ( this file is necessary )

5. Now check for rawprogram0 file

6. Open it in notepad ++

7. Inside it, u need to find a line like this

<program SECTORSIZEINBYTES="512" filesectoroffset="0" filename="" label="persist" numpartitionsectors="65536" physicalpartitionnumber="0" sizeinKB="32768.0" sparse="true" startbytehex="0x1a8000000" startsector="13893632"/>

8. Now u need to edit this line to

<program SECTORSIZEINBYTES="512" filesectoroffset="0" filename="persist.img" label="persist" numpartitionsectors="65536" physicalpartitionnumber="0" sizeinKB="32768.0" sparse="true" startbytehex="0x1a8000000" startsector="13893632"/>

9. Save and open Miflash tool

10. Copy ur Bt Mac & WiFi Mac if original

11. Go into bootloader / fastboot mode

12. Unlock bootloader if not done already ( fastboot oem unlock )

13. Now go into edl mode ( fastboot oem edl )

14. Your phone screen should now go black and LED light should be blinking ( if not try until u get this )

15. In miflash tool , press refresh

16. This time u will see something like ( COM 8 ) or similar instead of device no.

17. Select clean and lock and press flash

18. Let it complete ! This time it won't reboot automatically to system after flashing is completed.

19. When it completes ( it will say Success ) . Reboot to system by long pressing power key

20. Complete the startup procedure and check sensors !

21. It will be fixed but WiFi will be broken

22. Now flash this zip via twrp

https://www.androidfilehost.com/?w=files&flid=270334

23. Reboot , WiFi will be fixed

24. Now u can fix ur WiFi Mac and bt Mac to original state

This fixed all my modem problems.... Hope it helps...

I found this post on xda.
[Xiaomi Mi A1 Guides, News, & Discussion] saski4711:
Yeah I already did that to get my BT and wifi mac back. But I still have lost my LTE band 20 support. Steps above didn't solve this :(
[Xiaomi Mi A1 Guides, News, & Discussion] p@to:
ok !!

I did it!!

thanks a lot !!!
[Xiaomi Mi A1 Guides, News, & Discussion] MrBurnGamer:
Does this tool work only for Mi A1 or it works for other devices?
[Xiaomi Mi A1 Guides, News, & Discussion] snakefist13:
Hi,

I took a low level backup and TWRP partition backup of my MI A1 and then flashed Pie beta rom. So is it possible for me to revert to Oreo 8.1 by restoring the low level backup ?
[Xiaomi Mi A1 Guides, News, & Discussion] saski4711:
If you've been using the tool in OP to make a low level backup BEFORE switching to P then you've backed up pretty much everything that can be backed up. I haven't tried it but if TWRP backups are not enough, restore all your partitions with this tool and you should be safe and sound back to oreo - assuming that xiaomi didn't change the partition layout :p
[Xiaomi Mi A1 Guides, News, & Discussion] snakefist13:
I was on AEX 5.8 based on oreo 8.1 when i took a backup. Will that by any chance cause any problems during roll back ? I have read that the TWRP backups dont work/cause boot loops. So, what is the procedure for a roll back ? Do i just need to restore the low level backup partitions and then restore TWRP backup?
[Xiaomi Mi A1 Guides, News, & Discussion] saski4711:
Assuming that you have backed up everything you should be back right at the point when you did your low level backup no matter what ROM you were on at that time. No need to restore any TWRP backups after that.
[Xiaomi Mi A1 Guides, News, & Discussion] snakefist13:
I had skipped user data by selecting *partition_list.skip-systems-and-userdata.txt while taking the backup. Is that OK ?
[Xiaomi Mi A1 Guides, News, & Discussion] saski4711:
Then your device won't boot since you've lost your original system(ROM) and userdata partitions. Immediately after low level restore boot into TWRP, wpe/format system userdata dalvik and reinstall your oreo ROM. good luck.
[Xiaomi Mi A1 Guides, News, & Discussion] snakefist13:
Thank you for the information :)
[Xiaomi Mi A1 Guides, News, & Discussion] sachin273:
Did u do it? i have the exact same question and would like to know if Xiaomi have changed up the partition system on Pie...
[Xiaomi Mi A1 Guides, News, & Discussion] 5i1v3rStorm:
Usually u need the low level backup tool for being able to restore even those partitions which are not included in the official fastboot ROM packages from Xiaomi.

I recently had to detreblize my device to go back to full stock. I reverted with my low level backup and flashed Xiaomi's firmware via fastboot / MiFlash.

Since there is the system and the userdata included in the official ROM packages you don't need to lowlevel backup them.
[Xiaomi Mi A1 Guides, News, & Discussion] ashjas:
Hi,

I am in edl mode, but in device mgr i dont see any new h/w prompt. I am puzzled how to install the Qualcomm loader driver??

And the image screenshots from the OP are broken.

Any hints would be appreciated.

Thanks.
[Xiaomi Mi A1 Guides, News, & Discussion] 5i1v3rStorm:
I think no one replied to you because there really is not much we can do if your device doesn't show up but ours does.

Do I understand it right: Your device is recognized with fastboot, but as soon as you go "fastboot oem edl" it get's black and starts blinking but you can't see the device in Windows' device manager? Mine es seen as "COM 3" at the top of the list somewhere.

Have you tried simply installing the driver and running the tool to backup the partitions anyhow?
[Xiaomi Mi A1 Guides, News, & Discussion] KuGeSch:
I had the same problem some time ago.

I tried several Qualcomm drivers and finally it worked.

I am attaching the drivers I have downloaded, unfortunately I cannot remember which one finally worked.
[Xiaomi Mi A1 Guides, News, & Discussion] ashjas:
Yes you are correct, i dont see any new device in device manager with "com 3".

So if i there isnt any new device, what do i install the drivers against?

At this state, i tried to run the backup, but it didnt dump anything.
[Xiaomi Mi A1 Guides, News, & Discussion] KuGeSch:
In the "QDLoader" file I posted there is a file "qcser.inf" right-click on it and choose install.

If I remember right these are the drivers which helped me to let Windows see the device in device manager...
[Xiaomi Mi A1 Guides, News, & Discussion] ashjas:
After i installed the driver like you mentioned, nothing actually happened, i mean in UI sense.

But when i looked at the Ports section of the device manager, i was able to locate the device. check attachment.

And since its not com30, i modified the config.ini as com3.

But still dumping fails.

Log.txt content:

Version 2.15
Failed to write hello response back to device
Did not receive Sahara hello packet from device

!!!!!!!! WARNING: Flash programmer failed to load trying to continue !!!!!!!!!

Dumping data to file abc\modem_a.img
Dumping at start sector: 0 for sectors: 0 to file: abc\modem_a.img

Programming device using SECTOR_SIZE=512

<?xml version = "1.0" ?><data><configure MemoryName="emmc" ZLPAwareHost="1" SkipStorageInit="0" SkipWrite="0" MaxPayloadSizeToTargetInBytes="16384"/></data>

Status: 6 The handle is invalid.

Thanks for the response.
[Xiaomi Mi A1 Guides, News, & Discussion] KuGeSch:
Sorry to say that, but my intention only was to help you to get the device recognized by the Windows device manager.

This intention is obviously achieved. Sorry that I cannot help you any further, because I'm not using this low-level-backup.

Actually I am using either CosmicDan's TWRP and/or the app "migrate" for backup and I'm happy with it.
[Xiaomi Mi A1 Guides, News, & Discussion] chikvlad:
Hello, I have a question about your program, made a backup, despite the fact that the log file shows errors, the backup is still created, but after restoring, when the system boots, a black screen appears and it is recorded. You entered the correct password, but the data has been encrypted and cannot be extended. need to do a reset. What is the problem? how to fix it, attach the log file, thank you in advance

View attachment log.previous.txt
[Xiaomi Mi A1 Guides, News, & Discussion] chikvlad:
Hello, tell me this problem? mistake? or should it be? after recovering text on a black screen.

[B]You entered the correct password, but the data was encrypted and cannot be expanded. need to do a reset[/B]

. How to fix this, attach the log file, thank you in advance
[Xiaomi Mi A1 Guides, News, & Discussion] 5i1v3rStorm:
I have created a backup and successfully restored it. There where errors as well (something about couldn't find the flash programmer) but the backup was created anyway.

I did the backup before treblizing the device in order to save the partitions. That is why I didn't save the system and data partition.

In your case the data partition seems not to fit your system.

Did u do a full backup with userdata and system?

After restoring I flashed stock ROM. Have you?
[Xiaomi Mi A1 Guides, News, & Discussion] chikvlad:
Did u do a full backup with userdata and system? if you ask me yes, I have tried to restore different partitions always the same
[Xiaomi Mi A1 Guides, News, & Discussion] ardian1899:
Hello,

This is so awesome.

May I know if it's working on UFS too?
[Xiaomi Mi A1 Guides, News, & Discussion] CosmicDan:
UFS is just an implementation of storage, it shouldn't make a difference. As long as the device has unrestricted EDL mode and you can find the right firehose (bootloader) bin for the device, then it should work. Might need modifications to the script though - it makes some assumptions specific to Mi A1 iirc.
[Xiaomi Mi A1 Guides, News, & Discussion] ardian1899:
I see.. Thanks for the reply.

It was working on my LG V10 with modified partition list. At first it's not working, but after I remove the PrimaryGPT from the list, its working flawlessly. The same trick isnt working yet on LG V20 though. Maybe there's something with LUNs, any idea about it?

Thanks again
[Xiaomi Mi A1 Guides, News, & Discussion] CosmicDan:
Honestly don't know sorry, no idea what a LUN even is lol. Weird that you have to remove the GPT... Maybe the EDL mode is partially protected/locked in that device.
[Xiaomi Mi A1 Guides, News, & Discussion] ardian1899:
I dont really understand about it too, haha. But it seems some kind of partition. They are 4 in it.

No worries then, thanks a lot for this thread and your replies. :)
[Xiaomi Mi A1 Guides, News, & Discussion] xda_kumar:
Honorable Dev & Members

please take a look in this video

Details explained video of this tool

https://www.youtube.com/watch?v=SGSTWXsqxIQ
[Xiaomi Mi A1 Guides, News, & Discussion] nguyen18:
1000 thanks [MENTION=8754723]Dusayanta[/MENTION]:

your tuto is perfect!

1000 thanks [MENTION=1844875]CosmicDan[/MENTION] you're the best!:good:
[Xiaomi Mi A1 Guides, News, & Discussion] alsheron:
Just used this to backup my partitions - went well although I didn't figure out I had to have an unlocked bootloader first. I held volume down while doing that to avoid a wipe too. Just wanted to say a huge thanks for this tool. I'll feel a bit safer now to start flashing roms etc. Really appreciate your time and effort putting this out!
[Xiaomi Mi A1 Guides, News, & Discussion] mihritalia:
Hello friends. My device is Mi A1. When returning to 8.1, the device stopped. Right now it's just shaking. recovery and fastboot mode does not enter. I tried to load with edl mode, but it didn't. the device does not respond at all. when you just charge it, the led flashes and flickers. mi flash with modem.img error. BL lock off
[Xiaomi Mi A1 Guides, News, & Discussion] gps3dx:
Dear [MENTION=1844875]CosmicDan[/MENTION], me too want to know if it's possible ( with few minor changes ) to use the github project in order to backup the firmware of

other Xiaomi devices

. :o

I guess for another device the user needs compatible "mbn" file - which is easy to get from the web - then it is a must to change "config.ini" file with the relevant mbn filename & location. :angel:

Also, there's the question of the list of partitions for backup... it might not be the same compared to A1. :eek:

Is there a fastboot / adb command a user can run ( and at which environment ? booted, recovery, fastboot, EDL ?) to get the

full

partition list of the device ? :confused:

Any thing else needed to be changed ? :o
[Xiaomi Mi A1 Guides, News, & Discussion] Yanky_NOOB:
Hello guys, I have a nokia 6.1 + In edl can i use the same tool.

I will follow tutorial, only i will need help in defining partitions, where can i get info on my nokia partitions TA-1083.
[Xiaomi Mi A1 Guides, News, & Discussion] zwsss:
hi there i just wondering is it working for redmi 3s?

i really really need to back up my note file it is really important for me

what i back up is the system a b and the user data

i know it will take an hour or more

is this the best way to do it?

now i am still at backing up system a after a full hour but the log.txt didnt show up anything, no file were created at the back up folder too so i am confused rn is it really freezing or it need much more time for it ?

edit: i thought it was in bps XD it would going to be 20 days

but its not it only took 1 hour

so i ve finnish it but the image file cannot be opened in windows what should i do ? does it really really good enough or should i try again until i can open it on windows?

i changed the mbn file to my redmi 3s and it worked

just this how to open this file in windows

its 25 gb backup
[Xiaomi Mi A1 Guides, News, & Discussion] YamiMerlin:
I have a Xiaomi MI A1 that bricked hard, when i did the stock rom flash with mi flash appears a white led light on it and vibrates constantly like heartbeat. I have deduced that partitions are damaged so my question is, without a backup, can i restore those partitions? is there a chance to unbrick my android?

I appreciate all help i can get, thanks
[Xiaomi Mi A1 Guides, News, & Discussion] CosmicDan:
Yes you can flash all partitions, even the ones you shouldn't. The official flash package firmwares skips a lot of IMG files, I think you need to edit the XML files or something or just flash them all manually. I don't recall exactly sorry - try exploring the various text files in the firmware package, I'm pretty sure there's a specific XML config that can flash everything in EDL.

Just make sure you backup as much as you can first because this has potential to erase IMEI or MAC addresses... I don't remember the exact details.

If you can't figure it out quote me and I'll take a look on my Mi A1 (using it for GSI development lately).
[Xiaomi Mi A1 Guides, News, & Discussion] maegl1n:
I have a bootlooped (stuck at mi screen) Mi A1, with locked bootloader and disabled "usb debugging". I confirm that this tool works in test point.

I wish I had seen it before I tried restoring the phone with a reflash (which didn't help either)
[Xiaomi Mi A1 Guides, News, & Discussion] santosst:
Did someone try this tool on a treblized Tissot? I'd like to do a low-level backup, including the userdata partition, but I'm not sure if this tool will properly manage the modified partition table.
[Xiaomi Mi A1 Guides, News, & Discussion] CosmicDan:
Just pushed a minor fix, if you were getting "find: no such file or directory" type errors on startup, it will work as normal now.

Still works today, heh (trying to get my Tissot's 5ghz working so I can use it as a wifi USB adapter for a computer, last resort is to flash my old EDL backup...)
[Samsung Galaxy S9  Questions & Answers] onijomiko:
Hi all, I am new to this and just did a bit of research but I still have some questions that you all might be able to answer..

So I just purchased a Chinese S9 due to the dual-sim capability, but of course there is no google play store and is other chinese bloatware.

I was going to change the firmware to another Snapdragon (US) capable firmware, but there is none available for dual-sim, which is the main reason I bought the phone.

My question, is the Hong Kong version of SM-G9600/DS firmware going to allow me to use the google playstore?

If so, what is the difference between "G9600ZHU2ARC6_CL13087568_QB17462476_REV01_user_low_ship_MULTI_CERT_meta.zip (Oreo/HongKong)" and "G9600ZHU1ARC1_CL13087568_QB17191487_REV01_user_low_ship_MULTI_CERT_meta.zip (Oreo/HongKong)"?

If all else fails, will separately downloading/installing the google playstore on the original chinese firmware be functional?

Thanks in advance!
[Samsung Galaxy S9  Questions & Answers] Zenroid:
Yes HK firmware comes with playstore and sorry I don't know the difference for the 2 different firmware, the latest one is ARC6
[Samsung Galaxy S9  Questions & Answers] onijomiko:
Thank you Zenroid.

I was thinking about it, but is the HK version considered the "International Version" and thus using the Exynos chipset as opposed to the China/USA Snapdragon?

edit: Did a quick google search and the HK version has the Snapdragon chipset. I guess I will need to look around for the HK dual-sim firmware.
[Samsung Galaxy S9  Questions & Answers] Dark_3g:
The SM-G9600 firmware has the SM-G9600/DS firmware, I installed the SM-G9600 G9600ZHU2ARD3 CHO firmware (Chile) in a dual sim and I have no problems, it works fine, it is the version without blotware for Latin America, it has monthly updates (currently has the security patch of April), has Play Store and all the Samsung apps.
[Samsung Galaxy S9  Questions & Answers] onijomiko:
You're absolutely right Dark_3g. The SM-G9600 is for both China/HK and Latin America, luckily.

So I downloaded the HK firmware for SM-G9600 (arc6) and loaded into my phone and everything works perfectly.

Many thanks guys!
[Samsung Galaxy S9  Questions & Answers] nelsyv:
When you flashed the new firmware, did it trip KNOX? I know it shouldn't, since it's official, but that doesn't stop my brain from telling me to worry about it, haha.
[Samsung Galaxy S9  Questions & Answers] sentron:
onijomiko - I have the same question. Does it trip Knox? What is the filename or version number of the firmware you installed? Does it support VoLTE and Wifi calling, for either one or both SIMs?

I bought a HK version phone from a retailer in the US. As soon as I started it, it prompted me an OTA upgrade which I did. Now, it's at baseband version G9600ZCU2ARE6.

If I go to software updates, it says "The latest version updates have already been installed. Current version: G9600ZHU2ARE6/G9600OWO2ARE6/G9600ZCU2ARE6". I'm not sure why it lists three different version numbers here. From a quick google search, samsung-firmware.org shows:

PDA/AP Version G9600ZHU2ARE6

CSC Version G9600OWO2ARE6

MODEM/CP Version G9600ZCU2ARE6

Region COO — Colombia

If I look up the firmware version for Hong Kong, the CSC version shows G9600TGY2ARE6 but the other two version numbers are the same as what I have. Is this what onijomiko installed?

Do either of you onijomiko or Dark_3g have VoLTE and Wifi calling in your versions?
[Samsung Galaxy S9  Questions & Answers] nelsyv:
Flashing the official firmwares does NOT trip Knox. I've done it a few times over the last day or two. (Read about all my adventures in this thread).

The three model numbers are the PDA version (the actual firmware/OS), the CSC (country-specific stuff; in your case it's the most recent OWO one, which is the international unlocked version for Latin America; I'm not totally sure about how all these work though--trying to figure out how to get the right one set up on my phone), and the CP (modem firmware, same for all Qualcomm S9's, I think), respectively.

Read up on about Samsung's "CSC" system. If you find any particularly good resources, send them my way too! The way they have designed it is kind of confusing to me.

I'm not sure about VoLTE/Wifi calling. Haven't tried it yet on my phone, sorry. Hope it works though! :fingers-crossed:
[Samsung Galaxy S9  Questions & Answers] sentron:
Thanks a lot for the info. Do you at least see VoLTE and Wifi Calling menu items under 'Settings > Connections > More settings' after flashing the HK ROM? This will help me to decide to flash it. I'm reading about CSC - will report back if I find anything new that you haven't mentioned in the other thread.
[Samsung Galaxy S9  Questions & Answers] nelsyv:
Doesn't seem to be the case with the MXO 2ARC6 firmware (Updato). However, my CSC was also listed as TTT still, so going to reflash and see if I can get it to change. Forgot to disable FRP lock last time, oops, hopefully a reflash with US sim in slot, FRP disabled, followed by factory data reset (or two) will do the trick.

Didn't check when I had the HK firmware flashed, it's been a while since I used it.

EDIT: Couldn't get my CSC to change away from TTT, so I'm not sure which one is taking. Posted in another thread about it, looking for solutions...
[Samsung Galaxy S9  Questions & Answers] africanAtheist:
just download playstore apk and forget about flashing

just download the playstore apk. it worked for me. sm g9650
[Samsung Galaxy S9  Questions & Answers] fdavidgespinosa:
I also have the G9600 snapdragon, I'm from Mexico and I'm looking for a different firm from my telcel operator, so you say the one in Chile works, do you know if there is any firmware with android 9 for the G9600 / DS?
[Google Pixel 2 XL Questions & Answers] EnIXmA:
How many of you are using the ambient display and how much battery does it drain in average?

I had it turned on from day one, but want to use it for the cool now listening songs feature while screen is off
[Google Pixel 2 XL Questions & Answers] Triscuit:
I can't tell you how much exactly but it is a noticeable amount.
[Google Pixel 2 XL Questions & Answers] galaxys:
I Use ambient display, but don't really notice my battery taking a hit...
[Google Pixel 2 XL Questions & Answers] Trobus:
If you keep it in you pocket or face down (proximity sensor turns off the display on said conditions) when you're not using your phone the battery drain isn't noticeable
[Google Pixel 2 XL Questions & Answers] uicnren:
why not just try it and see how much it affects you?

I notice no drain from it at all, doesnt mean you will or wont however.
[Google Pixel 2 XL Questions & Answers] EeZeEpEe:
Been using it since day one and I'm fine with whatever minimal drain it does.
[Google Pixel 2 XL Questions & Answers] dieselhazza:
It would have to use some amount not matter what. People that state they don't notice a difference etc is not possible. So there is no doubt about it. It will definitely get a hit. I suggest you try it for a day or two and see how you go
[Google Pixel 2 XL Questions & Answers] sri4xda:
It is both.

In few cases it affect battery life.

In few cases it saves battery life.

My usage of phone ambience more than 90% of time is same so I manually set brightness. Enabling adaptiveness affected battery life.

However for others whose ambience changes from low brightness to high brightness, enabling it may save battery. Auto setting feature of phone do consume battery but battery saving provided by auto setting can be less or more depending on usage.