yashsingh1/xdaforums huggingface dataset:
[Xiaomi Mi A1 Themes, Apps, and Mods] joeyhuab:
Lens is currently not included due to the Google Photos storage hack causing photos to be uploaded in full quality.
[Xiaomi Mi A1 Themes, Apps, and Mods] CommandAir:
Hi,

Any chance to get back the unlimited Google Photos hack?

Why was it removed from v4.0?
[Xiaomi Mi A1 Themes, Apps, and Mods] joeyhuab:
That doesn't really work. It actually eats up your Google Drive storage.
[Xiaomi Mi A1 Themes, Apps, and Mods] CommandAir:
But it worked up to v3.9. I'm using this right now, and still unlimited upload till 2021.

What happened from v4.0, why unlimited don't work since that version?
[Xiaomi Mi A1 Themes, Apps, and Mods] joeyhuab:
Read.
[Xiaomi Mi A1 Themes, Apps, and Mods] bartoszka1996:
Can't make it to work on Oneplus One with 8.1 Oreo (Official LineageOS)
[Xiaomi Mi A1 Themes, Apps, and Mods] gsmart07:
Casuing bootloop in MI 5

I am using Magisk in my Xiaomi MI 5, I have flashed Pix3lify using Magisk and it is causing bootloop issue. It first goes to bootloop and then reboot into TWRP. Can anybody suggest solution for this problem?
[Xiaomi Mi A1 Themes, Apps, and Mods] Alan XXI:
Working on Mi A1 with 9.0 stock
[Xiaomi Mi A1 Themes, Apps, and Mods] joeyhuab:
This may or may not fix your network fluctuation issues but chances are that it will. :)

This can be flashed in ALL ROMs.

WARNING: FASTBOOT OEM UNLOCK WIPES YOUR DATA. TAKE BACKUPS IF YOU NEED TO.

ALSO: FASTBOOT OEM LOCK CAN ONLY BE USED IF YOU REVERTED YOUR PHONE TO FULL STOCK. DON'T USE IT IF NOT NEEDED.

Latest bootloader & modem

V10.0.14.0.PDHMIXM - Pie 9.0 October patch

V10.0.12.0.PDHMIXM - Pie 9.0 August patch

V10.0.11.0.PDHMIXM - Pie 9.0 July patch

V10.0.10.0.PDHMIXM - Pie 9.0 June patch

V10.0.9.0.PDHMIXM - Pie 9.0 May patch

V10.0.8.0.PDHMIXM - Pie 9.0 April patch

V10.0.7.0.PDHMIXM - Pie 9.0 March patch

V10.0.5.0.PDHMIXM - Pie 9.0 February patch

V10.0.4.0.PDHMIXM - Pie 9.0 January patch

V10.0.3.0.PDHMIXM - Pie 9.0 December patch

V9.6.8.0.ODHMIFE - Oreo 8.1 November patch

Previous modems

8.1 October

8.1 August

BETA 8.1 August

8.1 July

BETA 8.1 July

8.1 June

BETA 8.1 June

8.0 May

BETA 8.1 May

8.0 May

8.0 April

Flash the file zip via TWRP.

OR

Extract the modem.img from the zip and do the following commands via fastboot

- fastboot devices
- fastboot oem unlock
- fastboot flash modem_a modem.img
- fastboot flash modem_b modem.img
- fastboot reboot

Once booted, set your network mode to Global or WCDMA/LTE or a different mode depending on your geographical location.

You may dial *#*#4636#*#* then once in the testing app, click Phone information then scroll down to see the network modes.

Hope this can help with your network issues! Comment below if it fixes your network stability.
[Xiaomi Mi A1 Themes, Apps, and Mods] coremania:
Edit
[Xiaomi Mi A1 Themes, Apps, and Mods] upilguebu:
Thank you! Gonna try flashing!
[Xiaomi Mi A1 Themes, Apps, and Mods] zavalin:
It didnt work:(
[Xiaomi Mi A1 Themes, Apps, and Mods] dolfet15:
Awesome, I will check it

Enviado desde mi Mi A1 mediante Tapatalk
[Xiaomi Mi A1 Themes, Apps, and Mods] kamrul.auntu:
writing 'modem_a'...

FAILED (remote: Partition flashing is not allowed)

finished. total time: 1.889s

writing 'modem_b'...

FAILED (remote: Partition flashing is not allowed)

finished. total time: 1.888s

I think it's not a successful operation. Is it for bootloader locked state that's why?

---------- Post added at 02:48 AM ---------- Previous post was at 02:33 AM ----------

Yes bootloader unlock was the reason for failed.

So below should be working flashing process,

- fastboot devices

- fastboot oem unlock

- fastboot flash modem_a modem.img

- fastboot flash modem_b modem.img

- fastboot oem lock

- fastboot reboot
[Xiaomi Mi A1 Themes, Apps, and Mods] ShawnMercer:
thanks a lot solved my volte issue :)
[Xiaomi Mi A1 Themes, Apps, and Mods] joeyhuab:
Glad it helped!
[Xiaomi Mi A1 Themes, Apps, and Mods] joeyhuab:
Guys, try setting network mode to Global after flashing this. It might fix the fluctuations.
[Xiaomi Mi A1 Themes, Apps, and Mods] pooniaprashant:
and how to set it?
[Xiaomi Mi A1 Themes, Apps, and Mods] joeyhuab:
Type *#*#4636#*#* in your Dialer app then go to Phone information and look for network mode.
[Xiaomi Mi A1 Themes, Apps, and Mods] Rhandy25:
Can i flash diz using twrp 3.2.1.2?
[Xiaomi Mi A1 Themes, Apps, and Mods] sikoo1996:
Yes , just flashed .. everything alright ?
[Xiaomi Mi A1 Themes, Apps, and Mods] Rhandy25:
Thanks bro
[Xiaomi Mi A1 Themes, Apps, and Mods] KaaMyA:
Thank you so much ;)
[Xiaomi Mi A1 Themes, Apps, and Mods] dmbardal:
Thank you.

I'm not sure if this actually does anything on later custom ROMs though?

Assuming they include the same files.

However, I did check with older custom ROMs, and I now have -95 to -101 dBm in signal when using 4G (LTE), so it's absolutely worth trying.
[Xiaomi Mi A1 Themes, Apps, and Mods] joeyhuab:
It's worth a try. :)

I'll update this whenever a fastboot ROM comes out per month. Hopefully it improves your network.
[Xiaomi Mi A1 Themes, Apps, and Mods] pauch_19@yahoo.com:
by any chance sir, can you make a flashable zip of the march modem just incase we would need to revert? personally its easier for me flashing via twrp since i leqve my laptop at home. thqnks in advance.
[Xiaomi Mi A1 Themes, Apps, and Mods] joeyhuab:
I look for the file and upload it as well.
[Xiaomi Mi A1 Themes, Apps, and Mods] Rhandy25:
My problem is, my wifi can't connect to any wifi.. how to fix it,, I flash your moddem via twrp. But my wifi is still not work
[Xiaomi Mi A1 Themes, Apps, and Mods] joeyhuab:
It's part of the update. These zips ars for custom ROMs that don't get monthly updates from Xiaomi.
[Xiaomi Mi A1 Themes, Apps, and Mods] mac-duff:
Can anyone explain me what does the modem have to do with the google voice recognition? I mean, my mic etc. is working, but what is the dependency between these two so that I cannot call "ok Google"?
[Xiaomi Mi A1 Themes, Apps, and Mods] Vel-San:
I would love to read more about this. Why the hell did i lose Ok Google after flashing this? It doesn't make sense at all. I even flashed Ok Google fix from Magisk and still not working.

I have the settings, it's on, but it just doesn't recognize my voice. :rolleyes:
[Xiaomi Mi A1 Themes, Apps, and Mods] saski4711:
Lost LTE Band 20 with august ROM. Downgraded to april but band 20 is still missing. Anyone with similar issues?
[Xiaomi Mi A1 Themes, Apps, and Mods] Monstruite:
Works in Android 9.0 custon rom?
[Xiaomi Mi A1 Themes, Apps, and Mods] joeyhuab:
Yes. Works with all ROMs.
[Xiaomi Mi A1 Themes, Apps, and Mods] alester2801:
Sir ma fix kaya nito yung wifi issue ko. Connected na aku sa wifi. Kaso pag disconnect at reconnect tagal lumabas yungw wifi. d tulad dati pag On sa wifi. connected agad.
[Xiaomi Mi A1 Themes, Apps, and Mods] mac-duff:
Hi,

Did anybody experience some battery draining regarding the different modem versions? I have the feeling that when I am on the road and not connected to a WIFI, my battery level sinks incredibly.

My OS is standard lineageOS with no kernel modifications.
[Xiaomi Mi A1 Themes, Apps, and Mods] jadephyre:
Speak english please, no one here wants to use a translator.
[Xiaomi Mi A1 Themes, Apps, and Mods] trance89:
yes, i also lost band after flashing back to stock from LOS

this method is working to get it back (cca 20minutes procedure): https://xdaforums.com/mi-a1/how-to/lte-t3854592
[Xiaomi Mi A1 Themes, Apps, and Mods] joeyhuab:
Latest modem based on October 5 patch uploaded to the OP!
[Xiaomi Mi A1 Themes, Apps, and Mods] mac-duff:
Hi,

Thanks for the update.

I guess a change-log does not exist, right?

Here are the SHA Keys of the modem.img

Tissot_8.1_August_5_Modem

SHA256: 7DA539C9DEF95D110880F0E664CDBE5CAFBCCC2D7367E829075C014C73B87131

Tissot_8.1_October_5_Modem:

SHA256: 3D11EC621FB3680AAB7695B2263D755CABBC9E92B638183A593574D7D43E198F
[Xiaomi Mi A1 Themes, Apps, and Mods] LIONS1:
can you add latest firmware too not just the modem please
[Xiaomi Mi A1 Themes, Apps, and Mods] joeyhuab:
Latest firmware here: https://drive.google.com/file/d/1FS3ND62e0O0guRzL_rmnTuJcK7r2tIYE/view?usp=drivesdk
[Xiaomi Mi A1 Themes, Apps, and Mods] recoman:
Ok google not working modem new.
[Xiaomi Mi A1 Themes, Apps, and Mods] mac-duff:
Hey,

can you explain how I can see my current firmware version and how do I flash the firmware? Do I have to flash each file one by one? Sorry for that n00b question

thanks

md

edit:

Just for anybody else, I followed these instructions:

https://xdaforums.com/showpost.php?p=75051793&postcount=3

edit2:

with latest firmware google now is also working again
[Xiaomi Mi A1 Themes, Apps, and Mods] Vel-San:
Can you always add the FW with Modem updates in OP for next updates? Much Appreciated !
[Xiaomi Mi A1 Themes, Apps, and Mods] joeyhuab:
Will do
[Xiaomi Mi A1 Themes, Apps, and Mods] Vel-San:
One linked in OP is flashable :)
[Xiaomi Mi A1 Themes, Apps, and Mods] manan001:
Hi just wanted to know what is the difference between two files..

Firmware with modem can this be used for custom roms?

And only modem file.
[Xiaomi Mi A1 Themes, Apps, and Mods] MihaiSG:
Firmware is the full, stock ROM.

Modem is the baseband/modem and it's working on custom ROMs.
[Xiaomi Mi A1 Themes, Apps, and Mods] Berlino:
I'm on LOS 15.1 and this is shown in TWRP while flashing the firmware...
[Xiaomi Mi A1 Themes, Apps, and Mods] Obscurax:
No it's not the full stock ROM. It contains firmware for the soc, chipset and processor related partitions and the bootloader, amongst other device specific partitions.
[Xiaomi Mi A1 Themes, Apps, and Mods] joeyhuab:
Firmware contains updates to bootloader, modem, DSP among other device partitions. Modem means it's only the modem partition being updated.

And yes. These zips are used to update your device's partitions even while in custom ROMs. That's the intention of these zips. So your firmware won't stay outdated even if you're not on stock ROM.
[Xiaomi Mi A1 Themes, Apps, and Mods] saski4711:
Thank you for providing this package. Saves us a lot of trouble flashing the firmware from the Stock fastboot package while on custom ROM :highfive:
[Xiaomi Mi A1 Themes, Apps, and Mods] redbullman:
I love lineage but this rom is noticeably laggier and slower than pixel experience. Once fixed I'll use this in a heartbeat. Great development though.
[Xiaomi Mi A1 Themes, Apps, and Mods] dirtyl0lharry:
How can I know if my firmware/modem is up to date ? I'm currently on latest LOS15.1, should latest LOS15.1 have the latest firmware as well ?

I don't know how to check if I have the latest one.
[Xiaomi Mi A1 Themes, Apps, and Mods] joeyhuab:
ROM is different from the firmware part. Just install the latest.
[Xiaomi Mi A1 Themes, Apps, and Mods] joeyhuab:
Eh? Wrong thread.
[Xiaomi Mi A1 Themes, Apps, and Mods] redbullman:
Yep sorry don't know what happened there!
[Xiaomi Mi A1 Themes, Apps, and Mods] dirtyl0lharry:
Still, how am I supposed to know if I have already the latest firmware ? Is the firmware gone once I perform a full wipe in order to change rom ? Should I flash latest firmware every time I change the rom ?
[Xiaomi Mi A1 Themes, Apps, and Mods] joeyhuab:
Check AIDA64 or CPU-Z. And no. Firmware will always be there unless you format partitions to treble-lize your device. Just flash latest firmware when it's available.
[Xiaomi Mi A1 Themes, Apps, and Mods] LIONS1:
latest firmware is here Version: V9.6.8.0.ODHMIFE (Android O) Size: 1616M

http://bigota.d.miui.com/V9.6.8.0.O...0.ODHMIFE_20181031.0000.00_8.0_9ea450fe98.tgz
[Xiaomi Mi A1 Themes, Apps, and Mods] paolocorpo:
Thanks so much

Is this a fastboot image usable with MiFlash ?

Inviato dal mio Mi A1 utilizzando Tapatalk
[Xiaomi Mi A1 Themes, Apps, and Mods] zurik:
You can use it via Mi Flash, extract it first...
[Xiaomi Mi A1 Themes, Apps, and Mods] val'o'venil:
November is already the Firmware?
[Xiaomi Mi A1 Themes, Apps, and Mods] paolocorpo:
Yes

Here

http://bigota.d.miui.com/V9.6.8.0.O...0.ODHMIFE_20181031.0000.00_8.0_9ea450fe98.tgz

Inviato dal mio Mi A1 utilizzando Tapatalk
[Xiaomi Mi A1 Themes, Apps, and Mods] Victor Muzhichela:
432.mosgortrans@gmail.com
[Xiaomi Mi A1 Themes, Apps, and Mods] joeyhuab:
Latest firmware from tissot_images_V9.6.8.0.ODHMIFE_8.0 now available.

DL (Firmware w/ Modem): https://drive.google.com/open?id=12m7mehiNpf0Ez2xeWXp2RifupJvjXD_o

DL (Modem only): https://drive.google.com/open?id=1deOMFnaLqGhlSOPMqGMp5JgWDWC_BeCJ
[Xiaomi Mi A1 Themes, Apps, and Mods] Xaviers101:
while switching roms... Is it ok to flash firmware first after wiping partitions and before flashing rom zip , etc?
[Xiaomi Mi A1 Themes, Apps, and Mods] joeyhuab:
After.
[Xiaomi Mi A1 Themes, Apps, and Mods] Xaviers101:
deleted.
[Xiaomi Mi A1 Themes, Apps, and Mods] mac-duff:
How do I flash the aboot.img and the dsp.img?

The rest is flashed like this:

fastboot flash cmnlib /images/cmnlib.img
fastboot flash cmnlibbak /images/cmnlib.img
fastboot flash cmnlib64 /images/cmnlib64.img
fastboot flash cmnlib64bak /images/cmnlib64.img
fastboot flash devcfg /images/devcfg.img
fastboot flash devcfgbak /images/devcfg.img

fastboot flash keymaster /images/keymaster.img
fastboot flash keymasterbak /images/keymaster.img
fastboot flash lksecapp /images/lksecapp.img
fastboot flash lksecappbak /images/lksecapp.img
fastboot flash modem_a /images/modem.img
fastboot flash modem_b /images/modem.img
fastboot flash rpm /images/rpm.img
fastboot flash rpmbak /images/rpm.img
fastboot flash sbl1 /images/sbl1.img
fastboot flash sbl1bak /images/sbl1.img
fastboot flash tz /images/tz.img
fastboot flash tzbak /images/tz.img

Edit:

fastboot flash dsp /images/dsp.img

fastboot flash aboot /images/aboot.img
[Xiaomi Mi A1 Themes, Apps, and Mods] redbullman:
Does anybody know why the vendor security patch is still listed as October with the November firmware? Thanks
[Xiaomi Mi A1 Themes, Apps, and Mods] Obscurax:
Just flash the zip in TWRP?

This isn't a ROM. You need to intall a newer ROM (> november).
[Xiaomi Mi A1 Themes, Apps, and Mods] redbullman:
As far as I understand the vendor security patch is tied to the firmware? Its not the main security patch.
[Xiaomi Mi A1 Themes, Apps, and Mods] Obscurax:
In my phone it shows 'up to date', using latest firmware and a recent LOS ROM.
[Xiaomi Mi A1 Themes, Apps, and Mods] joeyhuab:
Please leave your assumptions from the thread. These zips have nothing to do with ROMs or vendors. These zips are the firmware files included in stock ROM flashables through Mi Flash Tool. I just made them into zip files so people on custom ROMs can update their bootloaders, modems, etc without the need to return to stock ROM. This is not related to any ROM or security patches.
[Xiaomi Mi A1 Themes, Apps, and Mods] redbullman:
I know you have a history of rudeness as well, but please keep this from the thread.
[Xiaomi Mi A1 Themes, Apps, and Mods] joeyhuab:
I don't want other users to be confused because of the discussions being made above. I'm not being rude. I'm being frank about the misconceptions being said. Please double check for facts first before assuming otherwise. I apologize if I sound rude but I just don't want confusions to spark from the statements you made earlier.
[Xiaomi Mi A1 Themes, Apps, and Mods] Xaviers101:
your "Okay" would have sufficed. he was only correcting you and making sure that the rest of us following thread don't have wrong information.
[Xiaomi Mi A1 Themes, Apps, and Mods] joeyhuab:
No.
[Xiaomi Mi A1 Themes, Apps, and Mods] Radamanti:
Hi, thx's to all for your works and experience!

I'm with Resurrection Remix RR-O-v6.2.0-20180913-tissot-Final NON-TREBLE, dirty flash install on the latest official firmware V9.6.7.0.ODHMIFE

The system report last security patch of september 2018.

Runs FK Kernel, Magisk and Xposed.

I've noticed some wifi issue, will this upgrade be helpful?

There's some risks upgradin' full firmware zip via twrp? (bootloop, stuck on boot, data losing?)

Sorry for my english and my being noob ^^
[Xiaomi Mi A1 Themes, Apps, and Mods] Xaviers101:
always a good habit to keep ur device updated with latest stock firmware no mater which custom rom u use. just flash it via twrp recovery. this way no need to flash the whole stock rom using mi flash tool. also security patch has nothing to do with firmware. it just updates the bootloader and modem . might solve the wifi issue u are facing.
[Xiaomi Mi A1 Themes, Apps, and Mods] Radamanti:
Thx's a lot for your kindness!

I will try soon ^_^
[Xiaomi Mi A1 Themes, Apps, and Mods] saurabhrakshak:
I am on PE, should I flash firmware with modem at last?
[Xiaomi Mi A1 Themes, Apps, and Mods] Xaviers101:
yes u can.
[Xiaomi Mi A1 Themes, Apps, and Mods] joeyhuab:
Edited out.
[Xiaomi Mi A1 Themes, Apps, and Mods] paolocorpo:
Thanks

Is this the full firmware or what ?

Inviato dal mio Mi A1 utilizzando Tapatalk
[Xiaomi Mi A1 Themes, Apps, and Mods] joeyhuab:
Updates baseband/modem and bootloader partitions.
[Xiaomi Mi A1 Themes, Apps, and Mods] Xaviers101:
not necessarily have to be using pie rom rite? to flash this .
[Xiaomi Mi A1 Themes, Apps, and Mods] joeyhuab:
Works with all Mi A1 ROMs, any Android version.
[Xiaomi Mi A1 Themes, Apps, and Mods] GabiML:
Full pie? Can i install it?
[Xiaomi Mi A1 Themes, Apps, and Mods] Xaviers101:
just the firmware: bootloader, modem and that stuffs.
[Xiaomi Mi A1 Themes, Apps, and Mods] olistudent:
Didn't work for me with Havoc-OS 2.0 20181125 from mountaser halak. SIMs where disabled with new pie beta firmware. And after flashing back firmware from November pattern wasn't accepted anymore...

Regards,

Oliver
[Xiaomi Mi A1 Themes, Apps, and Mods] saski4711:
Has anyone tried the PIE firmware with latest LOS16 build? I've lost SIM and BT with it :(
[Xiaomi Mi A1 Themes, Apps, and Mods] Berlino:
No problem here with just updating the latest Pie beta firmware on LOS16. BT and mobile/LTE are working fine.
[Xiaomi Mi A1 Themes, Apps, and Mods] berezker:
DO NOT flash latest december firmware, it breaks calling on some roms (PE and NOS). And rolling back to november firmware will make your phone not boot. Be careful
[Xiaomi Mi A1 Themes, Apps, and Mods] wmfanboy25:
Pie fastboot full rom:

https://drive.google.com/file/d/15egbHONHGgm0AnvFYm2PCOmSyz0_utRR/view?usp=sharing
[Xiaomi Mi A1 Themes, Apps, and Mods] Shooting Star Max:
In my case, I lost LTE and fingerprint after flashing the latest firmware on Lineage OS 16, so be cautious.
[Xiaomi Mi A1 Themes, Apps, and Mods] joeyhuab:
TO RESTORE CALLS AFTER FLASHING DECEMBER FIRMWARE, DO THIS GUIDE ENTIRELY.

https://t.me/TissotPixelExperiencePieOfficial/25013
[Xiaomi Mi A1 Themes, Apps, and Mods] Shooting Star Max:
That worked perfectly, many thanks! I got fingerprint, LTE, and calls back on Lineage OS 16.
[Xiaomi Mi A1 Themes, Apps, and Mods] fdc77:
thank you very much, i was able to restore my phone , have flashed your zip and then flashed latest stock rom, boot correctly, but i had to flash my efs backup to restore LTE band for my country. :good:
[Xiaomi Mi A1 Themes, Apps, and Mods] joeyhuab:
Backup your EFS+Modem in TWRP for this one.

Flash at your own risk.

December firmware with Dual VoLTE calls working for custom ROMs.

https://drive.google.com/open?id=1tjFWNzVxpguDSs0j8e1U6ejuos9T2ox6

Only works on Pie custom ROMs with updated vendor blobs.

To revert from this, restore your EFS + Modem backup

Flash November firmware

Reflash current ROM
[Xiaomi Mi A1 Themes, Apps, and Mods] Shooting Star Max:
It killed LTE and fingerprint just like the original version (at least on latest LOS 16). Nevertheless, thank you!
[Xiaomi Mi A1 Themes, Apps, and Mods] joeyhuab:
No prob. Just wanted people to test since it's working for others.
[Xiaomi Mi A1 Themes, Apps, and Mods] jatintomar:
Great work It works fine. Flashed on latest build of pixel experience.
[Xiaomi Mi A1 Themes, Apps, and Mods] tarun99115180:
I m on los 15.1 ... I want to flash november modem ... Is it safe? Or pls give me flashing guide
[Xiaomi Mi A1 Themes, Apps, and Mods] joeyhuab:
It's safe. Just flash in TWRP
[Xiaomi Mi A1 Themes, Apps, and Mods] JaadiBooti:
Will Google assistant still work after flashing the November modem on los 15.1?
[Xiaomi Mi A1 Themes, Apps, and Mods] coremania:
Yes, i use this combination, works fine.
[Xiaomi Mi A1 Themes, Apps, and Mods] JaadiBooti:
I Thanks but I was actually talking about the 'Ok Google' feature
[Xiaomi Mi A1 Themes, Apps, and Mods] joeyhuab:
December bootloader + modem re-uploaded.

This will work fine ONLY with ROMs with updated vendor blobs (latest Pixel Experience and LOS by Flex).
[Xiaomi Mi A1 Themes, Apps, and Mods] tarun99115180:
Thanx ....
[Xiaomi Mi A1 Themes, Apps, and Mods] jack_21:
December modem (Android Pie) has some trouble with LTE Bands. It only supports B1 (2100), B3 (1800+), B5 (850), B40 (TDD 2300) and B41 (TDD 2500) as I verified with Network Signal Guru. So 4G is working but only in countries where this five bands are used. In Italy for example we have band 3 in highways and cities, but in rural areas we use band 20 and it's gone.

The problem is that Xiaomi released an official Pie update that has this modem trouble and we can't rollback (causes bootloop and other problems with partitions) and if we install the November 8.1 modem, the phone will stop reading SIM Card.

Not a good situation IMHO.

Someone confirms that flashing PIE modem on a custom rom will cause same problem?
[Xiaomi Mi A1 Themes, Apps, and Mods] joeyhuab:
Just extract this in your internal storage and restore the EFS and Modem backup if it's such an issue.

TWRP BACKUP
[Xiaomi Mi A1 Themes, Apps, and Mods] paolocorpo:
Oh my god ... What's bad news !!!

Inviato dal mio Mi A1 utilizzando Tapatalk
[Xiaomi Mi A1 Themes, Apps, and Mods] jack_21:
Actually EFS seems good (no IMEI or Mac Address issues so far)

Which version is modem / boot from your TWRP backup?
[Xiaomi Mi A1 Themes, Apps, and Mods] joeyhuab:
November. Ignore the boot backup.
[Xiaomi Mi A1 Themes, Apps, and Mods] paolocorpo:
He says that with Nov modem loose the functionality of SIM

Inviato dal mio Mi A1 utilizzando Tapatalk
[Xiaomi Mi A1 Themes, Apps, and Mods] jack_21:
Yes, i can confirm. Flashing nov modem / backup will make the radio equipment not working
[Xiaomi Mi A1 Themes, Apps, and Mods] coremania:
and yes, OK Google works fine ;)
[Xiaomi Mi A1 Themes, Apps, and Mods] vargab.vk:
Link not working. Please provide link again.
[Xiaomi Mi A1 Themes, Apps, and Mods] joeyhuab:
TWRP Backup
[Xiaomi Mi A1 Themes, Apps, and Mods] laurodotcom:
This works? Its safe? I dont have a backup and my 4g is gone with december fw.
[Xiaomi Mi A1 Themes, Apps, and Mods] sixx:
I just flash it, now my phone don't event start

Just a black screen, keep pressing power button and nothing. Any idea?
[Xiaomi Mi A1 Themes, Apps, and Mods] saski4711:
Press power and volume up for 20-30 seconds that should get you into recovery
[Xiaomi Mi A1 Themes, Apps, and Mods] mamangan:
"okay google" not working and fingerprint option gone after flashing December files, re flashing november didn't solved it, what to do? help pls
[Xiaomi Mi A1 Themes, Apps, and Mods] Jason Looi:
I m on aex pie, can i use modem version 8.1 (November) ?
[Xiaomi Mi A1 Themes, Apps, and Mods] romantissm:
Sure, my friend
[Xiaomi Mi A1 Themes, Apps, and Mods] Jason Looi:
omg, that was fast, thanks man. If u don't mind, does the 8.1 has the same issue as the latest version 9..heard some band not supported. Are these modem from the stock rom ? Thanks in advance ..
[Xiaomi Mi A1 Themes, Apps, and Mods] romantissm:
November firmware has no issues at all. But don't flash December one if you're using AEX.

---------- Post added at 05:24 PM ---------- Previous post was at 05:19 PM ----------

Latest STABLE version (Recommended for most users): V9.6.8.0.ODHMIFE

(From stable release of stock Android 8.1 November Security Patch)

Latest BETA version (Recommended for dual VoLTE users. FLASH WITH LATEST PE BUILD ONLY!): V10.0.2.0.PDHMIFK

(From beta release of stock Android 9.0 December Security Patch)
[Xiaomi Mi A1 Themes, Apps, and Mods] Dazeon:
https://www.androidpolice.com/2018/...droid-9-pie-stable-to-the-mi-a1-more-or-less/
[Xiaomi Mi A1 Themes, Apps, and Mods] Jason Looi:
Thanks a lot man..will try the stable version..
[Xiaomi Mi A1 Themes, Apps, and Mods] Arn0ldx:
I flashed the december firmware and now i dont have lte how can I fix it?