I had a Redmi 4x which when shipped had 8.2 MIUI version (Before some 3 months). That time I checked using Jio and VoLTE worked fine. Then, My mother was using it and now after certain auto updates it was on MIUI v8.5.4.0. I had ported her no to Jio (4G only network), and now VoLTE didn't work at all. I tried flashing Latest MM firmware. I even clean flashed MIUI9 Dev and even then VoLTE didn't work. Always IMS will not at all register (Checked via Phone info). I hence declared somehow Jio network block listed 4x (other countries models) but LTE used to work fine. Out of all hope, I tried Official RR with its own recommended FW and even then VoLTE was down..!! I even changed Device model (Redmi 4x to Redmi 4), still it was in vain. Even tried adding IMS in default AP. Some suggestion to Choose Home IMSI in SIM Toolkit will also not work because latest Jio SIM doesn't ship with SIM Toolkit option at all!!!
After full frustration and wasting one full day, I thought I should change the phone. But somehow suddenly it struck to try fastboot flash the oldest MIUI8 which device was booting initially. So after trying that, Voilaaaa! 1st time seeing VoLTE after long hours and late at night !!!
Somehow Now I flashed latest stable 8.5.4 MIUI and it also has VoLTE working. Even in custom ROMs VOLTE now is working. So yeah just to share my learning, to help people who are having tough time with VoLTE..! :highfive::highfive:
arvindgr said:
I had a Redmi 4x which when shipped had 8.2 MIUI version (Before some 3 months). That time I checked using Jio and VoLTE worked fine. Then, My mother was using it and now after certain auto updates it was on MIUI v8.5.4.0. I had ported her no to Jio (4G only network), and now VoLTE didn't work at all. I tried flashing Latest MM firmware. I even clean flashed MIUI9 Dev and even then VoLTE didn't work. Always IMS will not at all register (Checked via Phone info). I hence declared somehow Jio network block listed 4x (other countries models) but LTE used to work fine. Out of all hope, I tried Official RR with its own recommended FW and even then VoLTE was down..!! I even changed Device model (Redmi 4x to Redmi 4), still it was in vain. Even tried adding IMS in default AP. Some suggestion to Choose Home IMSI in SIM Toolkit will also not work because latest Jio SIM doesn't ship with SIM Toolkit option at all!!!
After full frustration and wasting one full day, I thought I should change the phone. But somehow suddenly it struck to try fastboot flash the oldest MIUI8 which device was booting initially. So after trying that, Voilaaaa! 1st time seeing VoLTE after long hours and late at night !!!
Somehow Now I flashed latest stable 8.5.4 MIUI and it also has VoLTE working. Even in custom ROMs VOLTE now is working. So yeah just to share my learning, to help people who are having tough time with VoLTE..! :highfive::highfive:
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Click to collapse
same issue with me
i have redmi 4x imported from china
jio volte works on miui marshmallow but it disapears as soon as i go on nougat miui
So what did you do? At first you installed oldest version(plz tell me which version) via pc, then update to 8.5.4, but plz tell me how you update it, ( pc or mobile?)
ashvinsingh29 said:
same issue with me
i have redmi 4x imported from china
jio volte works on miui marshmallow but it disapears as soon as i go on nougat miui
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Click to collapse
Cleean flash santoni_global_images_V8.2.9.0.MAMMIEA_20170427.0000.00_6.0_global and upgrade that to latest Nougat MIUI9 stable.., Thats how it worked for me
sahir7860 said:
So what did you do? At first you installed oldest version(plz tell me which version) via pc, then update to 8.5.4, but plz tell me how you update it, ( pc or mobile?)
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Click to collapse
Flashed Old MM - santoni_global_images_V8.2.9.0.MAMMIEA_20170427.0000.00_6.0_global then installed the latest Nougat
can we use redmi 4x fastboot rom, for Redmi 4 device??
arvindgr said:
Cleean flash santoni_global_images_V8.2.9.0.MAMMIEA_20170427.0000.00_6.0_global and upgrade that to latest Nougat MIUI9 stable.., Thats how it worked for me
Click to expand...
Click to collapse
Can you give link of that old version plz
sahir7860 said:
Can you give link of that old version plz
Click to expand...
Click to collapse
Check official website
Little Help!!
arvindgr said:
I had a Redmi 4x which when shipped had 8.2 MIUI version (Before some 3 months). That time I checked using Jio and VoLTE worked fine. Then, My mother was using it and now after certain auto updates it was on MIUI v8.5.4.0. I had ported her no to Jio (4G only network), and now VoLTE didn't work at all. I tried flashing Latest MM firmware. I even clean flashed MIUI9 Dev and even then VoLTE didn't work. Always IMS will not at all register (Checked via Phone info). I hence declared somehow Jio network block listed 4x (other countries models) but LTE used to work fine. Out of all hope, I tried Official RR with its own recommended FW and even then VoLTE was down..!! I even changed Device model (Redmi 4x to Redmi 4), still it was in vain. Even tried adding IMS in default AP. Some suggestion to Choose Home IMSI in SIM Toolkit will also not work because latest Jio SIM doesn't ship with SIM Toolkit option at all!!!
After full frustration and wasting one full day, I thought I should change the phone. But somehow suddenly it struck to try fastboot flash the oldest MIUI8 which device was booting initially. So after trying that, Voilaaaa! 1st time seeing VoLTE after long hours and late at night !!!
Somehow Now I flashed latest stable 8.5.4 MIUI and it also has VoLTE working. Even in custom ROMs VOLTE now is working. So yeah just to share my learning, to help people who are having tough time with VoLTE..! :highfive::highfive:
Click to expand...
Click to collapse
So I followed yr method & Yes i got my Volte back but now i'm stuck in Marshmallow and there's a bug with the screen auto rotate not functioning. I googled and found that many people who downgraded to MIUI 8 are facing this problem & there it was also written that wen they upgrade to MIUI 9 Nougat screen rotate functions are restored. So here's the thing me being from India need my Volte for Jio and after a long time finally got it to work...But if i upgrade to MIUI 9 Nougat i'm scared that i might lose my Volte again & have to start my previous process allover again starting with unlocking my bootloader as i have locked it while flashing it to MIUI 8. So my question to you is what did u mean when you said " Now I flashed latest stable 8.5.4 MIUI and it also has VoLTE working. " from here did u just did OTA update (coz i'm getting V8.5.2.0 MAMMIED Update via my updater app). Or did u use Fastboot flash to 8.5.4 MIUI .??
BTW I was thinking should i just download a update.zip of the latest stable global V9.2 Rom & flashed it via the Updater App using update package option.. skipping v8.5.2.0 & other minor Updates and just jump to the latest. Will i still have Volte working on my Phone if i update to MIUI 9.
I'm Confused.....Pliz Help
Thanks In Advance.
neguneli said:
I'm Confused.....Pliz Help.
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Click to collapse
Hi., I unlocked bootloader and I used fastboot method to go back to prev version. Once the volte worked, MIUI9 also got VoLTE working. So try clean flashing latest MiUi and VoLTE would still work...
arvindgr said:
Hi., I unlocked bootloader and I used fastboot method to go back to prev version. Once the volte worked, MIUI9 also got VoLTE working. So try clean flashing latest MiUi and VoLTE would still work...
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Click to collapse
By clean flashing do u mean fastboot method or update.zip recovery method.....
U see I'm confused as there are many forms of flashing so it fastboot method with miflash right!!.
Ok I will try to download this fastboot stable rom for miui 9.... let's see how it goes.
Thanks a lot...
Damn this phone really is high maintenance...
neguneli said:
By clean flashing do u mean fastboot method or update.zip recovery method.....
U see I'm confused as there are many forms of flashing so it fastboot method with miflash right!!.
Ok I will try to download this fastboot stable rom for miui 9.... let's see how it goes.
Click to expand...
Click to collapse
I meant only Fastboot method. Give it try and tell us if it works..
arvindgr said:
I meant only Fastboot method. Give it try and tell us if it works..
Click to expand...
Click to collapse
So I tried and guess what it didn't work. Volte is confirmed to be working only in marshmallow miui8 and as we try to jump to nougat miui9 volte just doesn't work. So i flashed back to marshmallow and then did ota update ( minor 350mb update) which is still Android 6 and volte still works now I get ota update for miui 9 but I'm not willing to jump the gun anymore......
Maybe if I do ota update to miui9 after getting volte maybe it could miraculously get it's volte back but having flashed the phone multiple times and since I need to use this phone I'm gonna stop here so we'll never know if volte is ever gonna work in miui9 via ota...
Btw even if I got volte back the gyro and screen rotation is not working both in the old marshmallow and in the recently updated ota marshmallow. So playing some gyro games and having the gallery to open pics in auto rotate is out of the question.
I even tried flashing persist.img via both fastboot and miflash method & while it didn't allow me to erase and write the persist.img even though my bootloader is unlocked in fastboot method. I did managed to flash it via miflash tool after editing some .bat files via notepad++ so that I only flash the persist.img and not the whole rom.
There's a whole tutorial about this too on Google and guess what again this methods didn't do anything and I have both gyro and auto rotate not functioning.
It will function in miui 9 but in that version we'll know that volte doesn't work so....
My only conclusion is that without Xiaomi dev patching it out there's just no way this bug can be solved by simple flashing as in either form of the OS one ends up sacrificing one function or the other.
Btw thanks for replying, helping and hearing me out...
Really appreciate it.
neguneli said:
It will function in miui 9 but in that version we'll know that volte doesn't work so....
My only conclusion is that without Xiaomi dev patching it out there's just no way this bug can be solved by simple flashing as in either form of the OS one ends up sacrificing one function or the other.
Btw thanks for replying, helping and hearing me out...
Really appreciate it.
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Click to collapse
This whole VoLTE concept more or less isnt as reliable as legacy 2g/3G calls. Even yesterday for some wierd reason, VoLTE in this phone didn't work. I swapped SIM to another VoLTE where it didn't work on it too. I just let it for half day after which it started working. There isn't one proper way when on rooted phones, to easily get VoLTE related log data, so that we can try fixing the rootcause. Anyways I'm glad somehow you are able to manage...
My Volte working with miui 9 stable roms
Pliz give detailed description.
I'm excited to hear about this.
Btw no offence but you are sure that yr device is Redmi 4X and not Redmi 4, right!!
try to change your location in additional setting from your system location to another location, ex: thailand, and then check your volte setting
Ok that thought never occurred to me but I will not go back to miui 9 for the time being but if I do in the future I will definitely apply this method to check the volte.
Thanks for sharing this idea
Is volte working for any of you in pie roms?
Not Working
I got my redmi 4x from china ;-; works on marshmallow and goes off in nougat (miui) , Custom ROM (all nougat roms works fine with volte) but no volte in Oreo as well as in Pie.. Maybe Locked Bands
Same for me.
noticemeesenpai said:
I got my redmi 4x from china ;-; works on marshmallow and goes off in nougat (miui) , Custom ROM (all nougat roms works fine with volte) but no volte in Oreo as well as in Pie.. Maybe Locked Bands
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Click to collapse
Volte never worked for me on custom roms( oreo or pie). Currently on Arrow os (Pie). Tired everything but never got Volte working. It would be great relief for me if i would see volte sign on custom rom.
My phone was annoying me because android os/system was keeping my device awake. So I unlocked the bootloader, installed TWRP and wiped everything in TWRP. now I tried to flash RR and my baseband/imei is gone!
I tried to flash the stock rom with sp flash tool and it's still got no imei/baseband. I tried 2 firmwares for the XT1771 and both are the same.
I'm in the UK and need the UK files for the XT1771!!!!
Please, I need to fix this!
yeh i have the same problem too i have had it for about 2months now.
Sc0ttyLAD said:
My phone was annoying me because android os/system was keeping my device awake. So I unlocked the bootloader, installed TWRP and wiped everything in TWRP. now I tried to flash RR and my baseband/imei is gone!
I tried to flash the stock rom with sp flash tool and it's still got no imei/baseband. I tried 2 firmwares for the XT1771 and both are the same.
I'm in the UK and need the UK files for the XT1771!!!!
Please, I need to fix this!
Click to expand...
Click to collapse
yeh i have the exact same problem mate i have looked all over the internet even confronted lenovo/motorola about it they replied twice and then after that they decided to send me loads of adds to try get me to get a new one through my email i looked all over the interent tried everything adb fastboot and all the other things but stilll it doesn't work i haven't tried xposed framework imei changer yet because xposed hasn't come to moto e4 plus maybe if xposed was a thing that might fix it. aswell looked on 3 different forums with one person on each saying they cannot find a fix this is my daily phone and my spare phone is junk.
Hi, It works on my moto e4+ xt1773 dual sim
may be it works
https://www.youtube.com/watch?v=Kmnshd4cifY
IMEI null and baseband fix for Moto E4 and E4+ (Both Sim Working)
try this https://forum.xda-developers.com/moto-e4-plus/how-to/fixed-moto-e4-plus-xt1771-unknown-t3831831
Hi, as many of us have lost of IMEIs and VOLTE after downgrading from custom Oreo ROM, is there any developer who can assist us with this? I will perhaps recite all the happenings which occurred with me, first I flashed the Oreo based AOSP since some YouTuber stated it has no bugs whatsoever in it, it worked fine like no bugs or anything of that sort, thereafter I planned on flashing the stock ROM, back then I getting my signals since I already read to skip using commands 'fastboot erase modemst1' and 'fastboot erase modemst2', but then I wasn't getting VOLTE on the stock rom as well, I thought taking OTAs would fix it, but unfortunately it didn't, then I found a post which promised on getting back my VOLTE if I flash persist file, as they said I followed each and every step, but since flashing that thing I haven't been able to get my signal back, 0 IMEI and no damn response even after switching SIM cards, I even sideloaded the Oreo soak update seeking my IMEI and signals, but nope that didn't work either, I have tried all the custom roms like Pixel Experience, RR, Validus and AOSP but neither of them is helping, is there any kind and supportive developer who can perhaps look into the matter and help us? This is the only phone I have and I really love Moto, also before you kind seniors point fingers at me, I would already like to confess that I knew all the risks of flashing, upgrading and downgrading and I have been flashing custom roms since the original Moto G(2014), none of the issues have been so unkind and bad, like there's no solution out here for us and no assistance whatsoever from Motorola/Lenovo, hence if possible I would really appreciate if anyone could help us getting our device back, Thanking You all
Same issue
I have exactly the same issue...after flashing that g4 persist backup to get the volte working...there is no network at all....tried all the methods
Any one please help..
Thank you.
Same as here
Hello everyone,
Yesterday I flashed my moto g5s plus with flashable android oreo update. Later I found out that the network drops frequently. So I tried to downgrade to Nougat 7.1 and was successful doing so. Then I was amazed to get the official OTA of oreo 8.1 but due to unlocked bootloader I couldnt install that as it eventually gave me an error. So I tried to relock bootloader but failed to do so due to the clear warning of bootloader downgrade(that was because I updated to oreo and downgraded to Nougat). Later I tried locking the bootloader using the oreo files i.e. the extracted files from oreo firmware, althought I was on Nougat but was successful. But the network started to drop frequently and was unable to use the network services. So I rushed to moto service centre where I was first said there could be a problem with the motherboard lol. But I told them to just flash the firmware as I thought it was a s/w issue. The firmware flashing resolved the problem of network droping but the new issue arrised, which was, when I place a call the receiver gets the call but cannot hear anything same goes to my device. Even i couldnt hear anything. The service centre advices to replace an IC, which they say is damaged and he added that my device is showing "fake network".
Can anyone please help me with this?
Thank you!
Give the phone to SC and ask them to do the necessary things as they suggested.