VOLTE Missing After Re-Flashing Stock ROM - Xiaomi Mi A1 Questions & Answers

!Need Help!
i flashed Custom ROM RR Havoc OS etc faced some problem with that rom's so switched back to Stock ROM Android Pie but MY Volte Was not working on Both sim Jio And Airtel 4G is Working Fine(Earlier VoLTE was Working)
so i first flashed Stock pie Downloaded from MI website (tissot_images_V10.0.4.0.PDHMIXM_20190104.0000.00_9.0_2cee840c96)
Volte was not working so i again flashed it with Stock Oreo(tissot_images_8.1.10_20180110.0000.00_8.0_8ea503201b)
but this time both sim was not showing network(sim card not detecting )
currently on Pie Stock Boot loader Locked no system update is available
after updating when setup start it show English US And estados unidos in language selection earlier the setup auto detect the country (English India)
while using TWRP i cleared vendor image too is there any problem (i read on XDA that if i flash stock or RR it will replace any Vendor image)
or the problem is the ROM i flashed was not for india ?

Rnayar18 said:
!Need Help!
i flashed Custom ROM RR Havoc OS etc faced some problem with that rom's so switched back to Stock ROM Android Pie but MY Volte Was not working on Both sim Jio And Airtel 4G is Working Fine(Earlier VoLTE was Working)
so i first flashed Stock pie Downloaded from MI website (tissot_images_V10.0.4.0.PDHMIXM_20190104.0000.00_9.0_2cee840c96)
Volte was not working so i again flashed it with Stock Oreo(tissot_images_8.1.10_20180110.0000.00_8.0_8ea503201b)
but this time both sim was not showing network(sim card not detecting )
currently on Pie Stock Boot loader Locked no system update is available
after updating when setup start it show English US And estados unidos in language selection earlier the setup auto detect the country (English India)
while using TWRP i cleared vendor image too is there any problem (i read on XDA that if i flash stock or RR it will replace any Vendor image)
or the problem is the ROM i flashed was not for india ?
Click to expand...
Click to collapse
you can install the February update then reboot your cellphone if it works, congratulations on your efforts. if that case still continues you can reset your network card from setting the signal reset, bluetooth and wifi, and then reboot ... and enjoy your repair effort If it's not sweet enough, you can reset your phone's factory and reboot. enjoy it

Related

Still No VoLTE for Redmi2 8gb variant

Hello, I currently am using a jio sim as my primary sim. However, i tried all the methods suggested on xda but still no volte.
List of things that i have tried:-
1. Tried flashing the modem(doesn't work at all)
2. Flashing MIUI 7.5 version as suggested( V7.5.2.0.LHJMIDE_20160629.0000.25_5.1_global ) to be precise
3. Tried flashing another one of Redmi2 Prime's firmware(global developer rom)
4. And tried flashing several other ROMs(Orion OS, RR, Tesla, AOSP and DU) after doing step2 and still no volte support found
Can anybody help me?
@cypherx1998 Flash kitkat dev rom 7.1.5 or newer from fastboot, after it starts booting turn of your device and boot into fastboot, then flash the latest lollipop dev rom and boot into it, setup your device, then go to settings, mobile data (I think, it's where you have the option to change to 3g and 4g data) and enable VoLTE voice calls, after that, reboot into fastboot and flash TWRP 3.0.2-0, then go to wipe, advanced wipe, select:
cache/dalvik-cache
system
data
internal storage
and then wipe, after that go to wipe again, select cache, then "change partition format" select F2FS, and swipe to apply, do the same thing for data, don't do on dalvik-cache and system, or else this may brick your device.
Then flash the wt88047 firmware avaliable on LineageOS second or third post, do a full wipe again, install VoLTE universal Patch Here do a full wipe again, then flash the latest LineageOS build, after wipe only cache and data, flash OpenGapps pico arm android 7.1.1 and reboot.
You will have VoLTE
Try to flash RR 5.8.0 nought ROM. U will have voLTe working on ur device. I am currently using that ROM. Go for it
Shashank Varma said:
Try to flash RR 5.8.0 nought ROM. U will have voLTe working on ur device. I am currently using that ROM. Go for it
Click to expand...
Click to collapse
No... I didn't get VoLTE...
I am using the same ROM.
---------- Post added at 09:27 AM ---------- Previous post was at 09:24 AM ----------
If u want VoLTE u will have to flash the redmi 2 prime rom either fastboot or recovery...
However ur device will start lagging and ur free ram won't go higher than 300 MB.
http://bigota.d.miui.com/6.7.5/wt88....5_20160523.0000.23_5.1_global_53ff97d6ba.tgz
And the recovery one is::
http://bigota.d.miui.com/6.7.5/miui_HM2XWCProGlobal_6.7.5_8673db6ce3_5.1.zip
voLte is working for sim1. See the screenshot below
Volte works just flash latest wxcpro ROM by editing its script so that it won't say 'this ROM is for so and so ****'
Shashank Varma said:
voLte is working for sim1. See the screenshot below
Click to expand...
Click to collapse
How can that screenshot say that VoLTE is working??? I can't see any HD or VoLTE sign..
U can see there enhanced 4g LTE mode which means volte.
Shashank Varma said:
U can see there enhanced 4g LTE mode which means volte.
Click to expand...
Click to collapse
Nope bro!!! I don't think that's VoLTE! Coz I have got that enabled and I can't call using a Jio SIM!!
Didnt work
TecnoTailsPlays said:
@cypherx1998 Flash kitkat dev rom 7.1.5 or newer from fastboot, after it starts booting turn of your device and boot into fastboot, then flash the latest lollipop dev rom and boot into it, setup your device, then go to settings, mobile data (I think, it's where you have the option to change to 3g and 4g data) and enable VoLTE voice calls, after that, reboot into fastboot and flash TWRP 3.0.2-0, then go to wipe, advanced wipe, select:
cache/dalvik-cache
system
data
internal storage
and then wipe, after that go to wipe again, select cache, then "change partition format" select F2FS, and swipe to apply, do the same thing for data, don't do on dalvik-cache and system, or else this may brick your device.
Then flash the wt88047 firmware avaliable on LineageOS second or third post, do a full wipe again, install VoLTE universal Patch Here do a full wipe again, then flash the latest LineageOS build, after wipe only cache and data, flash OpenGapps pico arm android 7.1.1 and reboot.
You will have VoLTE
Click to expand...
Click to collapse
Took me time to try this...but didnt work.....you might think that i didnt follow the steps properly..but i did and i verified on each step that i was doing it the right way....but sadly it didnt work
You may try Redmi 2 Prime ROM (stable or dev) for some days..Check whether you get VoLTE on that ROM or not.. If yes then use that for some days maybe 2 or 3 days..It will be slow at first then after 2 to 3 hours of use u will feel no lag..I was using Developer version for 2-3 months which was fine for daily driver..I just faced storage issue..Then I tried stable version, and the same issue was there.. So I decided to use some custom ROMs and I Flashed AOSP Extended (Nougat)..VoLTE works fine and the ROM is so much smooth with good battery backup..But due to slow internet speed I am using Mokee 7.1 right now.. You can try using R2P ROM for some days...If VoLTE works there then it will work on other ROMs too( as per my experience).
Ignore my english...
Ofnigamer said:
You may try Redmi 2 Prime ROM (stable or dev) for some days..Check whether you get VoLTE on that ROM or not.. If yes then use that for some days maybe 2 or 3 days..It will be slow at first then after 2 to 3 hours of use u will feel no lag..I was using Developer version for 2-3 months which was fine for daily driver..I just faced storage issue..Then I tried stable version, and the same issue was there.. So I decided to use some custom ROMs and I Flashed AOSP Extended (Nougat)..VoLTE works fine and the ROM is so much smooth with good battery backup..But due to slow internet speed I am using Mokee 7.1 right now.. You can try using R2P ROM for some days...If VoLTE works there then it will work on other ROMs too( as per my experience).
Ignore my english...
Click to expand...
Click to collapse
Yes just flash either the dev or stable Redmi 2 Prime ROM. I can say that this works because I have flashed it on as many as three devices. Just go to this link and find out Redmi 2 Prime Global Developer ROM or Global Stable ROM.
http://en.miui.com/a-234.html
Remember these are to be flashed in fastboot. After flashing this, you can flash any Nougat based ROM like LOS, RR, AEX, cRDroid, etc to enjoy VoLTE on those ROMs too.
cypherx1998 said:
Hello, I currently am using a jio sim as my primary sim. However, i tried all the methods suggested on xda but still no volte.
List of things that i have tried:-
1. Tried flashing the modem(doesn't work at all)
2. Flashing MIUI 7.5 version as suggested( V7.5.2.0.LHJMIDE_20160629.0000.25_5.1_global ) to be precise
3. Tried flashing another one of Redmi2 Prime's firmware(global developer rom)
4. And tried flashing several other ROMs(Orion OS, RR, Tesla, AOSP and DU) after doing step2 and still no volte support found
Can anybody help me?
Click to expand...
Click to collapse
1)download Mi flash tool
http://en.miui.com/forum.php?mod=attachment&aid=NzYzMjQzfGFlZDEyMDMzfDE0NzI1NDg5MDJ8ODE5MTF8MzM2MTg0
2)
download fastboot rom redmi 2 prime global stable or china
http://bigota.d.miui.com/V8.1.3.0.L...DI_20161230.0000.00_5.1_global_23ac47dab8.tgz
above is global stable link.
3) put your phone in fastboot mode, unzip the downloaded rom. (avoid spaces in between folder path/name eg "C:\New Folder\Extracted rom\...." is not allowed instead it should be like C:\New_Folder\Extracted_rom\.......)
4) open mi flashing tool see if your device is listed. refresh to see. select clean all (flash_all.bat) option from bottom of mi flashing tool.
5) click on flash, and let it boot.
you would be able to use VoLTE now in miui rom. if you want to change to any N based roms just flash twrp and clean install any rom.
Flashing the MIUI 7.5.2 global ROM should work. Wipe everything and do a clean install. Once you see an indication of VOLTE on the MIUI then you should be able to get the same in other ROMS. I just did it recently.
Flash the redmi 2 prime rom using any of the methods fast boot or normal. If VoLte is what u r looking for
cypherx1998 said:
Hello, I currently am using a jio sim as my primary sim. However, i tried all the methods suggested on xda but still no volte.
List of things that i have tried:-
1. Tried flashing the modem(doesn't work at all)
2. Flashing MIUI 7.5 version as suggested( V7.5.2.0.LHJMIDE_20160629.0000.25_5.1_global ) to be precise
3. Tried flashing another one of Redmi2 Prime's firmware(global developer rom)
4. And tried flashing several other ROMs(Orion OS, RR, Tesla, AOSP and DU) after doing step2 and still no volte support found
Can anybody help me?
Click to expand...
Click to collapse
I think i can help you dude. Flash this fastboot rom you have. Boot it with YOUR Jio sim in the first sim slot inside. Setup everything normally in the phone. After it booted, you WILL see the Volte symbol in the statusbar.
Now root it and install TWRP. Now install a Volte rom of your choice. It has to work.
I will say you why this has to work. I own this device. The 8GB variant. My friend owns the same device. While my device had Volte working, his' didn't work. I checked it. He had kitkat bootloader. Then i flashed the lollipop stock rom in his device in fastboot mode. i directly rooted the device and installed cm14.1 in his device. Still no Volte. I wondered what the fcuk was just happening. My friend was like i'll cope up with this dude. I'll use jio 4g voice. But couldn't leave it like that. I tried it the second time just like i have told you and then VOLTE STARTED ****ING WORKING MAN !!! I was on cloudnine !!! Just helping you out !!
I think the reason Volte was not working is because the jio sim needed the stock rom to trigger it to start Volte sevices. Before it, the jio must have thought "yeah, this is a non volte device ". Just saying !!
Have a nice day !!!
Sankar Bharani said:
I think i can help you dude. Flash this fastboot rom you have. Boot it with YOUR Jio sim in the first sim slot inside. Setup everything normally in the phone. After it booted, you WILL see the Volte symbol in the statusbar.
Now root it and install TWRP. Now install a Volte rom of your choice. It has to work.
I will say you why this has to work. I own this device. The 8GB variant. My friend owns the same device. While my device had Volte working, his' didn't work. I checked it. He had kitkat bootloader. Then i flashed the lollipop stock rom in his device in fastboot mode. i directly rooted the device and installed cm14.1 in his device. Still no Volte. I wondered what the fcuk was just happening. My friend was like i'll cope up with this dude. I'll use jio 4g voice. But couldn't leave it like that. I tried it the second time just like i have told you and then VOLTE STARTED ****ING WORKING MAN !!! I was on cloudnine !!! Just helping you out !!
I think the reason Volte was not working is because the jio sim needed the stock rom to trigger it to start Volte sevices. Before it, the jio must have thought "yeah, this is a non volte device ". Just saying !!
Have a nice day !!!
Click to expand...
Click to collapse
How do you check what bootloader you're on currently?
cypherx1998 said:
How do you check what bootloader you're on currently?
Click to expand...
Click to collapse
I think their is no(simple) way to know that.But you can try a app named "phone info". But it didn't work out for me.It is showing unknown bootloader.
The best way to know your bootloader version is " try to remember which miui ROM u flashed last".
Or there is lolypop firmware in lineage is thread for u.
cypherx1998 said:
How do you check what bootloader you're on currently?
Click to expand...
Click to collapse
Simple. Press vol down and power. will boot into fastboot mode.
If the letters saying FASTBOOT are in green color and small, it is in KitKat bootloader. If the letters saying FASTBOOT are in Blue color and little big, it is Lollipop. I know it sounds a little lame, but trust me, this is a reliable method. If you flashed the lollipop rom via the mi Flash application through system, and youve got the blue colored bootloader, then you are on lollipop bootloader
SankarWayne said:
Simple. Press vol down and power. will boot into fastboot mode.
If the letters saying FASTBOOT are in green color and small, it is in KitKat bootloader. If the letters saying FASTBOOT are in Blue color and little big, it is Lollipop. I know it sounds a little lame, but trust me, this is a reliable method. If you flashed the lollipop rom via the mi Flash application through system, and youve got the blue colored bootloader, then you are on lollipop bootloader
Click to expand...
Click to collapse
well atleast now i know i'm on lollipop bootloader.....but still no volte man

Help..Lost volte support

I lost volte support after flashing rr. N rom please help me I don't have PC to flash fastboot rom .
ankit sandel said:
I lost volte support after flashing rr. N rom please help me I don't have PC to flash fastboot rom .
Click to expand...
Click to collapse
Someone recently told you have to flash stock ROM to get VOLTE again, that's not true (completely).
Truth is, you just need to boot stock ROM (only if you lost volte support while flashing custom ROMs, it will not work if your modem is defected.)
For, without PC,
Restore stock backup if you have,
Otherwise flash jerome's modified ROM.
Boot it, you will have VOLTE back. (Sometimes volte comes back on first boot or reboot will make it.)
I have lost VOLTE many times while testing OreO ROMs, and got back by restoring STOCK TWRP backup...
I am unable to get volte even after restoring and flashing jeromies rom .. Can you please tell me any other way to get it back.

Nova Plus MLA-AL10 signal and flashing

Hi, I met some problems with my Nova plus mla-al10.
In short, the phone cannot boot and I need help with getting the offical emui5.0 dload upgrade package. (probably)
Below is the whole story:
1. The phone is unlocked.
2. Upgraded emui4 180 to emui5 in the emui4 system. The system indicated the target version is emui5 352. After updated, my version turned into NRD 90M test-keys without many huawei custom apps. ( I think it's because of the lack of data-update package, but it's too late now)
3. I tried to solve the version problem and I flashed the phone through fastboot with RECOVERY, BOOT, SYSTEM & CUST extracted from the downloded update packages. ( First 358, later I tried several other versions, same failing)
4. Then I cannot boot my phone. Just enter erecovery after 2nd reboot, and I cannot get the Rom downloaded through erecovery. Error reported.
5. Then I tried the dload update mode with a certain emui4 dload rom which I can only got from the internet for the MLA version. I cannot make sure what the ROM version was, like b122 or b133, emui4. I failed during update in the official recovery. 5%, 45% ,several times.
6. So I tried to use the twrp and both lineage and asop rom from #Henkate. Thank you #Henkate, the phone booted again. The system worked fine, except for one problem: When I use the China mobile(TD-LTE) and China unicom(WCDMA/LTE), I cannot dial out or dial in ( busy line). The sms and data(internet) worked fine. The signal is good. The sim card seemed to be successfully registered. China telecom seems worked fine(FDD-LTE) with dialing, sms and network. By the way, the china telecom simcard is the first card I used in the first lineage's first boot. I just found it abnormal with the problem above recent days.
7. Then I flashed the asop from #Henkate after wiping the system, cache and data. The same problem.
8. Now I cannot get where the problem is. I guess maybe the baseband software got wrong, so I wanted to flash the modem.img into the phone. The only way I think possible is to flash the dload package with version above 358 (or 360 which I also flashed through fastboot)through the huawei official recovery. The question is where I can get the package and is it the right thing to do? If not, how can I get back to the offical EMUI or other roms functioning normally?
Please help!
Thank you in advance!

Lenovo K6 Power Volte not working

had this Custom ROM flashed: https://forum.xda-developers.com/k6-power/development/rom-lineageos-15-0-lenovo-k6-power-t3685009
flashed this other Custom ROM: https://forum.xda-developers.com/k6...m-resurrection-remix-lenovo-k6-power-t3845486
this is when the network died out on one of my sims. I flashed it back to stock ROM to try to fix the issue. Now I have network on both the sims, but the 1st slot which is occupied by Jio sim is showing 4G, but Volte not showing.
ANY HELP TO FIX THIS WILL BE GREATLY APPRECIATED, TY
tried dialing ####682# to change country code to IN, but it returns "Error: Could not read factory ota patch from SD card, Or the patch is not correct"
flashed back to Marshallow Stock ROM & then dialed ####682#, selected IN.
Volte now working
now flashed Lineage OS 15.1, but Volte not showing.
its showing LTE next to signal.
any fix possible?
Volte symbol isn't there in LOS
But volte is there
malcolm_cg said:
had this Custom ROM flashed: https://forum.xda-developers.com/k6-power/development/rom-lineageos-15-0-lenovo-k6-power-t3685009
flashed this other Custom ROM: https://forum.xda-developers.com/k6...m-resurrection-remix-lenovo-k6-power-t3845486
this is when the network died out on one of my sims. I flashed it back to stock ROM to try to fix the issue. Now I have network on both the sims, but the 1st slot which is occupied by Jio sim is showing 4G, but Volte not showing.
ANY HELP TO FIX THIS WILL BE GREATLY APPRECIATED, TY
Click to expand...
Click to collapse
Flash back to Marshmallow OS Stock then
####682# select IN (it will be available even if it shows error now ) Volte will be enabled now
---------- Post added at 09:39 PM ---------- Previous post was at 09:24 PM ----------
malcolm_cg said:
had this Custom ROM flashed: https://forum.xda-developers.com/k6-power/development/rom-lineageos-15-0-lenovo-k6-power-t3685009
flashed this other Custom ROM: https://forum.xda-developers.com/k6...m-resurrection-remix-lenovo-k6-power-t3845486
this is when the network died out on one of my sims. I flashed it back to stock ROM to try to fix the issue. Now I have network on both the sims, but the 1st slot which is occupied by Jio sim is showing 4G, but Volte not showing.
ANY HELP TO FIX THIS WILL BE GREATLY APPRECIATED, TY
Click to expand...
Click to collapse
Flash back to Marshmallow OS
Don't wipe anything from twrp unless error will persist
After flashing back to Marshmallow stock os
Dial####682# and select IN ( it will be available now without any error because all the req. Files are now in SD due to Marshmallow stock os installation **don't wipe anything** or else now too you'll see error ) let the android update after selecting IN and Viola VOLTE is seen after 3-4 mins
Download Marshmallow Stock OS from
https://firmwarefile.com/lenovo-vibe-k6-power-k33a42
Flash through QPST **Not Flashable through TWRP**
IF NO PORT AVAILABLE SHOWS IN QPST
OPEN ADB AND ENTER Command: adb reboot edl

Making volte work on Andorid Q Roms.

As I have seen many people are facing issues regarding volte not working on android q roms. This can be solved by following the below procedure.
1) Flash stock Zui 3.5 through qfil
https://drive.google.com/file/d/1xWGFtcMZhMeOAsmASj4fwJzzbHOZZwdj/view
2) Boot into the rom and make sure that volte is working
3) Now unlock the bootloader and without booting back into system go to fastboot and flash recovery.
4) Flash the latest twrp and then wipe data/system/dalvic/cache.
5) Now flash any Andorid Q rom and reboot to system
6) You will be able to use volte now.
Note:- Make sure your sim is inserted into slot 1 or else volte might not work.
For any queries PM

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