Lost 4G(LTE) connectivity after latest official update - Xiaomi Redmi 6 Questions & Answers

Hello guys,
I am losing my mind here so I kindly ask for help. I aint no expert in flashing roms or anything, I have a stock Redmi 6 and yesterday I got a pop up about updating my phone. I selected yes and my nightmare begins.
Since then, I cant get the phone to connect via mobile network. I cant get any connectivity of any type using mobile data.
The phone is a Redmi 6, android version is 8.1.0 O11019 and rom is MIUI Global 10.2 Stable 10.2.3.0 (OCGMIXM).
Please help the noob get his phone back, I am about to throw it away

There is an update miui_HM6Global_V10.2.4.0.OCGMIXM_f662ddbe15_8.1.zip
http://ru.miui.com/thread-24171-1-1.html

thanks for your reply, updating to 10.2.4.0.OCGMIXM didnt resolve the issue.
Still no 4G.
Any other ideas? Please I am desperate

Head to" about phone" (in settings ) tap " internal storage " multiple times to enter phone info
Then head over to change network settings to LTE only or enable one with LTE as a possible option if you've disabled it by mistake
Also check which slot your sim is in ...
May not work if sim is in secondary slot and 4g is disabled for it
Let me know if it worked !
Cheers !

Thank you for your reply my friend.
I have tried all these things, they were the obvious ones, so I went with them first. Nothing works, phone is unable to connect to 4G. I have flashed multiple times in case it was a bad flash, I even downgraded to a Developers Rom, but nothing works.
Funniest thing of all, I contacted Xiaomi UK customer services today, and after trying various *# codes, and the guy asking me to turn the phone off and then on again, he ended up saying that I need to wait for the next update.
It is insane

Related

Rooted Samsung I9000 sim card not detected

Hi All,
I've just got an Samsung Galaxy S that is coded to a provider network.
So far so good ...
After I've installed an application and root the phone and then unroot it, my pone doesn't recognize my sim card ...
If I navigate to the Mobile Network from Settings then I get No SIM card inserted.
Facts to take into consideration:
- I have restarted the phone;
- I have applied a factory reset and lost all my data except music and files I've got on it;
- I have shacked the SIM card a little bit;
- I didn't applied a hard reset to it;
- I did tried to put a different provider SIM card and the message I get is to insert PIN then is asking for the UNLOCK NETWORK PIN;
- I am able to log in the phone but with no service
Please note that when starting / restarting the phone I get no Insert PIN popup
Anyone has an ideea why ?
I've got the same problem saptaru.
No sim card is detected in my Galaxy S.
If you happen to solve it, please, do not forget to post a comment.
After dialing #*1234# I can read:
PDA:
PHONE: Unknown
CSC:
I guess the IMEI cannot be recognized by the phone.
At least, I wrote it before rooting and flashing.
Any help will be highly apreciatted!
Hello,
After several restarts, hard reseting the phone and enable-disable networking I still get the sim card removed from time to time ... I don't really know how to debug this... if there is anyone on this forum with the right experience in order to debug the system please write me and maybe we can find a solution.
I must mention that I have unlocked my phone and also rooted it.
Thanks allot !
I have same problem now, can anyone help.
well my sim card has been identified but i can't seem to register on the network.....thats as far as i got as a noob with my first android (xperia x8)......can someone help me from here on......
i get nothing from sims from various networks, it doesn't even register as having a sim in it...
unlocked and darkys rom... driving me crazy, it basically a large mp3 player at the moment...
Maybe have installed the wrong ROM. i9000 has many bases and radios. I had this problem installing 900mhz ROM on a 850mhz sim.
Good luck
Kezzainc said:
Maybe have installed the wrong ROM. i9000 has many bases and radios. I had this problem installing 900mhz ROM on a 850mhz sim.
Good luck
Click to expand...
Click to collapse
Hmm, ok this might be the issue, flashing the htc desire is so much simpler!!
Will try to find correct radios and stuff again...
Sent from my HTC Desire using XDA App
Even I am having the EXACT same issues right now. I also did the factory reset but that doesn't help!
pokopelo said:
I've got the same problem saptaru.
No sim card is detected in my Galaxy S.
If you happen to solve it, please, do not forget to post a comment.
After dialing #*1234# I can read:
PDA:
PHONE: Unknown
CSC:
I guess the IMEI cannot be recognized by the phone.
At least, I wrote it before rooting and flashing.
Any help will be highly apreciatted!
Click to expand...
Click to collapse
Have u managed to find a fix? im havin this issue except my phone remembers the IMEI....
austin.s said:
well my sim card has been identified but i can't seem to register on the network.....thats as far as i got as a noob with my first android (xperia x8)......can someone help me from here on......
Click to expand...
Click to collapse
Have the same problem here. Have you managed to find a solution?
Hi everyone, I don't know if anyone is still interested but I've found that putting the phone into flight mode and then rebooting seems to work, because when I then turn flight mode off it asks me for my pin code and service is restored. As long as the IMEI folder is still in the efs folder then things should be fine.
Hope this helps for anyone who is here or just stumbles across this.
I've had the same problem > Sim Card not found.
I went to the Vodafone repair center today they said the phone had water damage.
Its never been near any water ever-they said that it could have happened months ago - "perhaps you hand wet hands once?". Its still in warranty but the apparent water damage means the warranty its now invalid. So now I'm stuck with an expensive video/audio player with WiFi access. Any help or progress with this issue would be great. Thanks
I fixed the issue bu flashing a working Modem from another rom. Just extract the modem.bin and flash it with odin
sim not discoverable
Hi all
Just wanna share an personal experience
:Been flashing rom in n out in this forum for ma LG P970 n a weird problem occured to me
-just flashed ma latest rom(Lezo Rom) n everything went smooth but only ma network didnt show up , Everything else work . Sim already installed in .
-Ma reflex was that ma sim burnt during flashing(it happened to me once) but not at all !! Tried it on ma nokia 5800 (v vip ) n it show that i had to edit ma PUK n pin code . Edited done
-Put back sim in fone but same result : sim missing
-So what i did was simply to go> setting > theme > brightness n pin code appeared to me .
-TADA n its done
Hope its helpfull for noobs like me

[Q] Wont recognize SIM card after flashing rom on MOTO G PLEASE HELP!

Hello, i recently thought about flashing a rom on my phone, i did all the basic stuff unlock boot loader, root etc but when i put the file on my device i got stuck in a bootloop, so i panicked a little and went on to google to find a STOCK ROM for the moto g. I found one and flashed that instead, it did infact save my device and i was so happy at the point, but then i noticed that at the top on my task bar it said i had no signal on BOTH Sdcards when infact this phone only has 1!? (my o2 simcard was in at the time) Anyway i went into setting and it had above he wifi setting "Dual SIM settings" which i have never even seen before. Anyway i clikced on that and it says 'SIM1 Disabled' and below it says 'SIM2 Disabled' Also my Mobile DATA has vanished to. All this worked before i went and screwed up my device. Im kind of in a panic and really dont want to loose this phone :crying: :crying: Please can anyone help get me back my signal and data, other then that everything else is working normal.
Screenshots Attached.
Pastyslayer said:
Hello, i recently thought about flashing a rom on my phone, i did all the basic stuff unlock boot loader, root etc but when i put the file on my device i got stuck in a bootloop, so i panicked a little and went on to google to find a STOCK ROM for the moto g. I found one and flashed that instead, it did infact save my device and i was so happy at the point, but then i noticed that at the top on my task bar it said i had no signal on BOTH Sdcards when infact this phone only has 1!? (my o2 simcard was in at the time) Anyway i went into setting and it had above he wifi setting "Dual SIM settings" which i have never even seen before. Anyway i clikced on that and it says 'SIM1 Disabled' and below it says 'SIM2 Disabled' Also my Mobile DATA has vanished to. All this worked before i went and screwed up my device. Im kind of in a panic and really dont want to loose this phone :crying: :crying: Please can anyone help get me back my signal and data, other then that everything else is working normal.
Screenshots Attached.
Click to expand...
Click to collapse
You have flashed a single sim variant of the stock ROM on your device, find the dual sim version for your phone here: http://sbf.droid-developers.org/phone.php?device=14
Also, of course your data has gone as your phone has undergone a reset and firmware flash
All of them are not for 4.4.4 or does that not matter?
TechMinerUK said:
You have flashed a single sim variant of the stock ROM on your device, find the dual sim version for your phone here:
Also, of course your data has gone as your phone has undergone a reset and firmware flash
Click to expand...
Click to collapse
Absolutely. From experience, you must flash the dual sim variant. Unfortunately, there is 4.4.4 available, but only for the States. You might PM me the OTA update package and I'll be able to help.
Sent from my XT1022 using XDA Premium 4 mobile app
Cant find it?
Cant find any for O2 uk or retail UK or duel sim or even 4.4.4
I Messaged you please reply. im abit of a noob to this website haha

Unable to connect to mobile networks

Greetings, I have created an account in order to seek help directly.
I received a LG P920 phone already rooted on ICS 4.0.4
At this time mobile networks worked and the phone was able to make calls and such. I did a factory reset which led to a recovery-loop so I followed this
http://forum.xda-developers.com/showthread.php?t=2228269
I then obtained CWM 6 using this
http://forum.xda-developers.com/showthread.php?t=2144738
And finally decided to flash Cyanogenmod 11 unofficial
http://forum.xda-developers.com/optimus-3d/development/rom-t2929971
It was at this point that I realized I couldn't connect to networks at all, thinking maybe the ROM was faulty I went for the official CM10 rom (the last nightly available on cyanogenmod), but that did not work either. Tried returning to ICS (v30a) but I couldn't connect to networks.
I've searched a lot of guides to recovering mobile networks but the catch is that most of them talk of lost IMEI numbers, which my phone hasn't lost. I looked into using LG flashtool aswell but all links are broken, be it for the software, the crack or the dll I need to have.
I'm at a loss right now, most of the guides I've seen here are for different purposes other than just getting the mobile networks going.
The SIM card works on another phone. Also, when trying to enter the password it will at times accept anything or not accept anything at all, even if it's the right code. If I search networks, they will be found but I'll just get 'Can't connect to this network right now'
My Baseband reads LGP920AT-00-V30a-EUR-XXX-APR-04-2013 and I'm currently on CM10
update: I have been informed by the previous owner that this phone hasn't been SIM unlocked, which is probably the problem here. Obviously this wasn't going to be so easy as I obtained the code and attempted to unlock it, but for some reason the process was unsuccessful. guess I'm still lost
Thanks in advance

S7 says OS was modified without authorization?

Hi everybody,
my S7 doesn't want to turn on WiFi anymore, and don't know why. Checking my software version in searching for a clue, I tapped update OS and got the message that my OS was modified without authorization. I rooted some other smartphones in my earlier years (HTC) but not this one, I just have it for some 6 weeks. Did something like that occur to anyone of you?
I attached a screenshot of my softwareinfo if it helps.
Thank you in advance for any hint.
Might Be a software bug, try factory resetting. The important thing is that KNOX isn't tripped, you could always bring it to a Samsung Store and let them update it for free.
Y just try factory reset or installing a stock rom with odin again otherwhise go back to the store!
goodluck!
I did factory reset, and the problem was gone - for a short while. I also switched off auto update of fear of wrong OTA updates. Now, my OS doesn't appear as unauthorized altered. But the moment I inserted the second SIM (sorry, forgot to mention it's the dual SIM Version) the initial problem reappeard: No wifi connectivity. Is the wifi module located near the SIM Slots?
Cause of error found
Just wanted to inform you, that I succeeded in finding the source of wifi error: Using the second SIM slot (only with SIM, SD card working fine) disables wifi. Why exactly, I couldn't find out though... Anyone experienced something similar?

[Completed] Help!! Galaxy J100H not registered on network.

Greetings, sharing here my particular problem from top to bottom just to take advice in general.
First of all, I live in Cuba, so my one and only network is Cubacel which runs GSM 900 mhz, so far so good with most phones.
I am between phones so I boorrowed this used J100h from a friend, which received it as a gift and has never been used. I performed a hard reset to wipe password, data, etc. Phone boots ok but no calls with cuban SIM.
The curious thing is that it does recognizes Cubacel network, it evens shows the changes on signal intensity. Bu when I try to manually add it, it finds and displays the network by its name, but reports an error when trying to register.
After 3 days of internet search I´ve narrowed to the following: I suspect the phone was unlocked or flashed previously, there is no network promo when turning on the phone but there is chinese rooting software installed and the cell is, or seems via root checker, rooted. Thought an extra /01 after the IMEI was a sign of corruption until I leraned about IMEI SV. Anyway, following this thought installed busybox and root explorer, checked efs folder, finding subfolders such as imei, factory app, etc, BUT NO .NV file. inside imei folder ther is a imeino1 file with the correct imei, but no .nv file outside. Is this fixable?? GSII repair doesnt work because seems theres is an error with the busy box install, what gives me doubts if the phone is really rooted, and if i need to be online to install busybox properly.
So, If I decide to try and flash stock rom and see if this fixes the problem here is my main doubt, which may seem obvious for some but i simply can figure out. Which stock rom version do I choose? the product code of the cell is ITV, and the bootloader also points to the italian version but the currently installed rom ends in AOG2, seemingly a greek version. I live in Cuba and everywhere I look people say that since the telephone is sim free you can install any rom, but the is no "any" or standard rom either in samsung firware o sammobile. Do I flash the same rom? do I flash the one matching the bootloader? Which stock rom version should I choose?
Very much appreciated if you have gone so far in this reading and have some piece of advice. Also excuse terrible English.
Hi !
I see plenty of firmwares on samsung website so pick one and see how it works , it doesn`t matter the region , you won`t damage anything , maybe the modifications that has been made on the device borked the network , clean stock firmware flash may resurrect it and try the one which matches the bootloader
You may have a look here as well https://forum.xda-developers.com/android/development/rom-gennxt-prerooted-stock-t3126368
Good luck !

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