RN3 Suddenly has no reception - Xiaomi Redmi Note 3 Questions & Answers

Hi everyone,
My RN3 recently lost all reception (calls & internet) even though it can detect the sim carrier. I have gotten permission to unlock the bootloader, but like many have faced the "fail to verify" bs upon attempting to unlock. I have tried factory resetting which has not worked either.
Has anyone experienced this and found a fix without unlocking the bootloader?
This is a nightmare as I am from Australia and would need to send it back to China for servicing if I can't find a solution.
Regards,
J.

Can you find baseband and IMEI information in the about telephone section of your device settings?

natter_deluxe said:
Can you find baseband and IMEI information in the about telephone section of your device settings?
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Hi,
Baseband version
MOLY.LR9.W1423.MD.LWTG.MP.V24.P44
IMEI
868029027392729 - checked as unblocked

Related

[Q] S2 doesnt connect to cell network

Hi Guys,
Someone please help. I am not able to connect to the network to make calls. Funnily 3g is working but not able to select Airtel as my network. Dont know what to do.
Running the standard firmware but it is not registering on the network.
Regards,
Vijay.
Maybe it's sim locked.
I did reply before but my post disappeared.
It is not sim locked. Bought it on Lets buy and tried to install a custom rom. that didnt work so i reinstalled the standard firmware. and not able to connect to mobile network since then. Tried multiple versions of firmware, still on stock firmware. can check my mails and connect to the market but mobile networks are not available. Pls help.
No CSC wrong CSC set all mobile's network
settings manually .
Or flash back Orginal branded rom .
Phone firmware Country Specific Codes does not cover your network is the usual answer to the problem .
jje
HI JJEgan,
could you please help me with how to do that? I have also discovered that the imei number on my phone has changed though i did not do anything to that.
Regards,
Vijay
vijaysivakula said:
HI JJEgan,
could you please help me with how to do that? I have also discovered that the imei number on my phone has changed though i did not do anything to that.
Regards,
Vijay
Click to expand...
Click to collapse
Restore your backed up efs folder as per the instructions .
failing that search for IMEI fix or flash stock firmware see if you get IMEI back .
no IMEI means unrecognised phone network will not accept it .
jje
HI JJEgan,
Unfortunately i dont have a backup. carelessly started assuming nothing would go wrong.
I have flashed the stock firmware for india. i didnt get the imei back. trying to find something to fix the imei without any success. could you please help me with any resources you might know? Thank you for the efforts taken.
Regards,
Vijay.
some XDA threads here .
http://www.google.com/cse?q=restore...ub-2900107662879704:fs7umqefhnf&ie=ISO-8859-1
jje

[Q] Unlocked S2 Not Registered On Network

Hi I have recently rooted and unlocked my S2. It recognises any sim put into it but if i try to make a call i get 'not registered on network' error. Apart from this the phone is in fully working order. I have set up manually the APN and recognises the sim but still get error.
Any help much appreciated.
Check your IMEI in settings/about phone/status. If it begins with '0044...' (whatever you do, do not post your actual IMEI number here !) you've found the source of your problem.
If your IMEI is OK, two possibilities that spring to mind are the phone is IMEI blocked (check with your carrier) or your carrier hasn't set something up properly at their end (again, check with them).
Hi, thanks for the reply. My IMEI no starts 3533 should this be ok? I also have signal on my phone but in settings says disconnected. I have also tried other sims but have same issue. Do you think i should contact the network or samsung direct or is there anything i can try?
Thanks again
danreedman said:
Hi I have recently rooted and unlocked my S2. It recognises any sim put into it but if i try to make a call i get 'not registered on network' error. Apart from this the phone is in fully working order. I have set up manually the APN and recognises the sim but still get error.
Any help much appreciated.
Click to expand...
Click to collapse
How exactly did you root your phone? Did you flash a new kernel only? Or also a new rom?
Because new roms also tend to flash a new modem in to the phone. Although this is not common, but a modem can change the way the phone talks to the cellphone carrier. Check in your "about" sections under settings whats your "baseband". Note that you can flash a new modem independently from the rom and kernel
guysoft said:
How exactly did you root your phone? Did you flash a new kernel only? Or also a new rom?
Because new roms also tend to flash a new modem in to the phone. Although this is not common, but a modem can change the way the phone talks to the cellphone carrier. Check in your "about" sections under settings whats your "baseband". Note that you can flash a new modem independently from the rom and kernel
Click to expand...
Click to collapse
OK this makes sense I did flash a new ROM the baseband number is I9100XXLPQ. Does it matter what modem I use and should this match the baseband?
I am having the exact same problem with 2 different carriers, it only shows a 3rd carrier in dominican republic which is claro and i have not been able to test it with a claro sim card, how did you guys resolve the problem.?

[Q] correct imei but no signal,

Hi!!:
After reading and reading and trying every method i found on the internet, i still have not succeded with my problem which is this:
I tryed to flash an stock 4.3 to my free s3 movistar chile, but when it rebooted and after i wrote the pin code, it asks me for an unblock sim code
It presented signal but uknown network. I got back to 4.1.2 thinking that it should repair this, but no, it was worst, i got imei null,
After searching and searchingI found a cwm 3 files patch on the internet: one for cleaning kernel, other one to install kernel and the other one to install modem, and with it i got my imei back, (this is when i made efs backup, i know i sould have done long before ) but also the wknown network problem, with the phone asking me for this unblock sim code again.
I used galaxysim unlock to try to repair this, but it showed me that the phone is totally unlocked i think i remember it also showed me the state of csc and it appeared blocked, so i think this is where the problem lies, but i couldnt find any info about this.
when i go to state of the phone i see this
network: uknown
kind of network: umts
service state: out of service
mobile network state: disconnected
imei:3537.... thats ok, fits with the one on the back of the phone
device state: modified
(sorry if my einglish is not very accurate)
So resuming: my imei number is ok, wifi works ok, but even though the phone shows signal, it presents uknown network, and i cant do or receive calls.
i would be very thankful if any of you could help me
Your phone was unlocked using a crack that only worked on 4.1, by updating to 4.3 you've corrupted the efs folder.
You now need to buy an unlocking code and pay for a repair, make sure it works on 4.3 before you accept the phone back.
boomboomer said:
Your phone was unlocked using a crack that only worked on 4.1, by updating to 4.3 you've corrupted the efs folder.
You now need to buy an unlocking code and pay for a repair, make sure it works on 4.3 before you accept the phone back.
Click to expand...
Click to collapse
Thanks a lot for answering!. So, if the phone was cracked in 4.1.1, is there any chance to downgrade to that version, use the corrupt efs backup that i have, just in case i lose the imei, and try to unlock?, or would be too risky?
Not without a backup of the efs before you upgrade, no.

[Q] Unknown Baseband and IMEI on G850A (AT&T)

Hi,
I got this phone from a friend and I don't know the history of it but is unable to detect any SIM card and the Baseband and IMEI appear as Unknown.
Do you have any idea on how to fix it?. Thanks in advance.
i had the same problem on 850FQ i bought few days earlier.
I digged deeper into the Issue and found out when someone wants to unlock their phone it can be done by 2 ways ONE: with an unlock code which people can buy from many online sites TWO: Using some hardware device i dont know its name. The repair guy told me sometimes a phones IMEI is also changed during the unlocking process and if the process is buggy then it may also damage IMEI AND BASEBAND.
Unknown imei/baseband can also be caused by a damaged "modem chip" or it can be caused by corrupt "EFS AND MODEM" folder while flashing custom roms. But since there is no ROOT and No firmwares available for the "A" model i guess your corrupt baseband is either due to "buggy unlocking" or it is a hardware malfunction. People who have the same problem in F or other models can try restoring factory firmwares with odin (from sammobile) but the folks with "A" Model are out of luck. i sold my phone as a demo unit cus i wasn't able to recover its baseband and imei.
Try a factory reset without simcard inserted, see if the imei comes back. if not you may sell it as a demo unit or keep the device for camera and music needs
adolfo7x said:
Hi,
I got this phone from a friend and I don't know the history of it but is unable to detect any SIM card and the Baseband and IMEI appear as Unknown.
Do you have any idea on how to fix it?. Thanks in advance.
Click to expand...
Click to collapse
maybe your phone is locked to provider(AT&T verzion...) i dont know,also I cant find proper 850A firware on sammobile or other sites
مشكله في جهازي تغير رقم imei الي (004999010640000) جلاكسي sm-g850f الأصدار 5.02
Problem in two to change imei number (004999010640000) Galaxy sm-g850f LAUNCH 5.02
I have 004999010640000 imei and I want to restore my original imei but it seems I don't have a backup. Any solution for this?

gt-i9300 imei correct, but sim is locked

Hi,
the problem is:
I have a galaxy s3 (i9300) which i'm not able to unlock. The *#06# shows the correct IMEI, which is printed on the label behind the battery.
I've tried editing nv_data.bin, but can't seem to find the 00181460 address.
Galaxsim says "unable to load nv data"
The problems started about a month after i upgraded to 4.4.4 (back to n00t rom). One morning the phone just kept saysing 'unfortunately com.android.phone has stopped working'
I tried reflashing it, then tried using cm13.
Everything works fine, except there's now a sim lock on my phone..
running out of ideas, so thought maybe you guys have some fresh ones.
Thanks!
The standard repair-procedure is to flash firmware by Odin.
hello, i have the same problem. i tried lot of rom to solve the problem but it don't do anything. Also flashing firmware by Odin don't work. I'm happy that i'm not alone.
sorry for my bad english.
Hello, have you ever tried to flash the stock firmware with Odin ? For me, it did not solve the problem. If someone has a solution. ..:crying:
The phone is network locked or is the SIM card locked with a pin?
audit13 said:
The phone is network locked or is the SIM card locked with a pin?
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hi, the phone is network locked.
The only method that may work to unlock the phone for free is the regionlockaway app with root and an older modem.
Was the phone ever network unlocked ?
Thanks for your answer .
Yes, the phone was network unlocked when i bought it.
i tried regionlockaway, but it don't work.
I don't know what to do.
Not sure why the phone would relock. You tried installing a stock rom?
I tried this too, but it don't worked.
I tried to change The modem, the CSC, but nothing happens, the phone remains network locked.
Did you check to make sure the phone was network unlocked when you first got it?
Yes, it was unlocked.
no network after custom rom 4.4.4
Hi all!
I also have the same problem after a cutom Rom install, >no Network, Hope you be of help as i expect XDA always do :angel:
No network is not the same as bein network locked.
If the phone can't be unlocked for free, an unlock code must be purchased.
audit13 said:
No network is not the same as bein network locked.
If the phone can't be unlocked for free, an unlock code must be purchased.
Click to expand...
Click to collapse
My Gt-i9300 shows my sim as it is LycaMobile but also gives me 'Emergency calls only; so i cant call and etc... is there a way to restore it to full stock firmware ? because i also flashed baseband modem etcetera , and ididnt change to Gsm only ( i read somewhere that be a solution...?
Changing to gsm only will only give the phone data access at edge speeds.
To return to stock, flash a rom from sammobile.com using Odin.
I bought an unlocked phone to change operator when i want and i still have to pay ? Oh misery... :'(
cedp974 said:
I bought an unlocked phone to change operator when i want and i still have to pay ? Oh misery... :'(
Click to expand...
Click to collapse
Did you confirm the phone was network unlocked when you first got it? The phone supports your carrier's radio frequencies? SIM card works in another phone?
You can use turbosim for unlock but i dont know what happen to you. Its only suggestion.
You can't network unlock an s3 for free if it has ever been updated to 4.3.
Beamed in by telepathy.

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