NO 4G/LTE Signal - YU Yureka Q&A, Help & Troubleshooting

I'm having Yu Yureka Plus Yu5510A, When I had bought this device 4G was working correctly but I soft brick while trying unlock bootloader. I had use the Annabathina Tool to unbrick the device. After unbricking I Lost my IMEI I restored it using QXDM Professional but I'm was getting 4G/LTE Signal.
I have already tried to
Flash the VoLTE Modem
Flashed COS 12.1 from fastboot
Preferred network to LTE from Testing menu but no Signal.
I think I'm only Yureka user yet to suffer this Problem.
I'm not blaming Annabathina for it, cause its my fault.
If you have any solution, then help me.
I'm having the Problem since 2 months.
If I won't get any Solution then I have to give it to Yu Care as my device is only 4 months old.
I'm getting 3G and GSM Signal.

Related

[Q] No Service Need Help

For the life of me I can't figure out what I did wrong. I purchased an Oppo Find 5 from China, rooted and flashed some custom ROMS. Somehow something screwed up my cellular connection. I get no service at all. I've flashed different roms, modems, factory reset ..you name it without success. The SIM card is detected but can't make calls or get data. Any ideas?
Edit: Problem solved: flashed a modem for x909t and now have service. I've been flashing x909 modem and that was the reason for connection failure.

Cell Network not working - India

I upgraded my Micromax A120 to rainbow and then to cyanogen mod. the cell network stopped working. then i went back to stock firmware but the cell network is still not working. i have tried using both one and two sims. i have tried waiting for 10 minutes after booting for the network to come but nothing. the network is in India. Please help.
I guess you have lost your IMEI... try *#06# to check whether you have a valid IMEI or not...
Thanks. i used mtk droid tools for changing the imei and it fixed the problem.

No Signal on AIRTEL after Reviving Hard Brick

Hello guys, sorry for posting in this forum.
But I am facing a serious issue in my yureka.
MY PROBLEM IN A NUTSHELL,
I have revived my Hard Bricked Yureka by Flashing CM12 Fastboot images, Now I don't get Signals particularly on AIRTEL SIM, I also replaced with new AIRTEL SIM still doesn't works. Kindly provide a solution. AIRTEL is my primary Sim.
MY PROBLEM IN DETAIL
I had hard bricked my yureka by accidentally disconnecting yureka during Fastboot flashing of CM12 Fastboot images from RR 6.0 ROM.
Then after following many guides on reviving hard bricked yureka here and on XDA, guide here on yuplaygod forum by Mr. Naved Ansari has worked for me.
But now I'm facing a very strange issue, Yureka is as normal as it was before except AIRTEL doesn't gets any signals.
Then I tried many combination like flashing Kitkat, Marshmallow, hard brick ing multiple times and reviving multiple times. Still I don't have the success. I'm getting signals on other Sim but not on AIRTEL. Suspecting AIRTEL SIM is a problem, I got new Sim of AIRTEL but still it is not working. During many trials I had it had worked for once on CM12, but after i restored TWRp backup of updated CM12. 1, it's gone again. I'm finally reviving my yureka by flashing CM12 Fastboot images.
Kindly help, AIRTEL is my primary Sim and I can not let it go.
iamROX said:
Hello guys, sorry for posting in this forum.
But I am facing a serious issue in my yureka.
MY PROBLEM IN A NUTSHELL,
I have revived my Hard Bricked Yureka by Flashing CM12 Fastboot images, Now I don't get Signals particularly on AIRTEL SIM, I also replaced with new AIRTEL SIM still doesn't works. Kindly provide a solution. AIRTEL is my primary Sim.
MY PROBLEM IN DETAIL
I had hard bricked my yureka by accidentally disconnecting yureka during Fastboot flashing of CM12 Fastboot images from RR 6.0 ROM.
Then after following many guides on reviving hard bricked yureka here and on XDA, guide here on yuplaygod forum by Mr. Naved Ansari has worked for me.
But now I'm facing a very strange issue, Yureka is as normal as it was before except AIRTEL doesn't gets any signals.
Then I tried many combination like flashing Kitkat, Marshmallow, hard brick ing multiple times and reviving multiple times. Still I don't have the success. I'm getting signals on other Sim but not on AIRTEL. Suspecting AIRTEL SIM is a problem, I got new Sim of AIRTEL but still it is not working. During many trials I had it had worked for once on CM12, but after i restored TWRp backup of updated CM12. 1, it's gone again. I'm finally reviving my yureka by flashing CM12 Fastboot images.
Kindly help, AIRTEL is my primary Sim and I can not let it go.
Click to expand...
Click to collapse
Same Problem Help me plzz
Same here!!!
I successfully unbricked my phone day before yesterday
But no signal in both sim1 and sim2. I moved my sim to another device and worked flawlessly...
If u got any solution pls share it with me...
iamROX said:
Hello guys, sorry for posting in this forum.
But I am facing a serious issue in my yureka.
MY PROBLEM IN A NUTSHELL,
I have revived my Hard Bricked Yureka by Flashing CM12 Fastboot images, Now I don't get Signals particularly on AIRTEL SIM, I also replaced with new AIRTEL SIM still doesn't works. Kindly provide a solution. AIRTEL is my primary Sim.
MY PROBLEM IN DETAIL
I had hard bricked my yureka by accidentally disconnecting yureka during Fastboot flashing of CM12 Fastboot images from RR 6.0 ROM.
Then after following many guides on reviving hard bricked yureka here and on XDA, guide here on yuplaygod forum by Mr. Naved Ansari has worked for me.
But now I'm facing a very strange issue, Yureka is as normal as it was before except AIRTEL doesn't gets any signals.
Then I tried many combination like flashing Kitkat, Marshmallow, hard brick ing multiple times and reviving multiple times. Still I don't have the success. I'm getting signals on other Sim but not on AIRTEL. Suspecting AIRTEL SIM is a problem, I got new Sim of AIRTEL but still it is not working. During many trials I had it had worked for once on CM12, but after i restored TWRp backup of updated CM12. 1, it's gone again. I'm finally reviving my yureka by flashing CM12 Fastboot images.
Kindly help, AIRTEL is my primary Sim and I can not let it go.
Click to expand...
Click to collapse
Same here... I have no signals in ANY SIM in my device and it sometimes randomly reboots... PLEASE HELP
hello, one of the solutions could be to flash the original firmware using YGDP tool.. https://www.google.com.tr/url?sa=t&...ao5510&usg=AFQjCNEAjnx9SaX_9wcm7cE5AyJNmMHbaQ
Found the problem... Dial *#06# and compare the IMEI nos. On screen with the IMEI Nos. On the box of the phone... Or behind the battery of the phone! If they are not the same, change them by following various methods on xda... And beyond!

[Help Pls] LG V20 VS995 after Root No GSM Signal - Service Disabled - No Service

Hello All,
For the past 3 weeks, I was reading threads and trying to solve the issue, but no luck. So please help me.
My problem/story started when I have ordered an LG V20 US996 from china, everything was working. I wanted to root it so I have tried this https://forum.xda-developers.com/v20/how-to/v20-h915us996-dirtyelf-bootloader-t3568013 and it worked, but I have lost the GSM Signal
I have tried to fix the issue by going to *#*#4636#*#* -> Phone information, but the US996 rom can’t access this menu. So I have tied to flash LineageOS for US996 it has started but the touch didn’t work so I have used an OTG Mouse, I went to *#*#4636#*#* but no result
After a long search on the internet I have come on a thread that suggest to see the original model of the phone (because as they said in china they may change the phone version), so I have checked the motherboard and I have found out that my phone is VS995.
But when I enter the LGUP or UPPERCUT it says that it is US996, I only can flash US996 KDZ ROM. However, after I went to ##PROGRAM996 I hit there reset (I don’t know exactly where) the phone restarted and now it shows in LGUP that it is VS995
So I have flashed using UPPERCUT VS99512A_06_1114_ARB00.kdz and no result still no GSM Signal then I have rooted the phone using https://forum.xda-developers.com/v20/development/ls997vs995h910-dirtysanta-bootloader-t3519410
I have flashed back the original EFS, no result still no GSM Signal
So I have Installed LineageOS for VS995 in order to access *#*#4636#*#* (because I couldn’t access any hidden menu form the VS995 original dialer) after Installing LineageOS the touch screen didn’t work I have an OTG Mouse, I went to *#*#4636#*#* -> Phone information, I Turn on the Radio but the still no GSM Signal
I have tried flushing multiple kernels and ROMs but no luck
I even tired this https://forum.xda-developers.com/v20/how-to/manual-program-sprint-ls997-v20-t3557676 but no luck, I couldn’t contact Verizon for the MSID number because I live in Lebanon
P.S: I have an IMEI number
I am going crazy here
Please help me
i have also tried this https://forum.xda-developers.com/v2...-ls997-v20-t3557676/post71315675#post71315675
and didn't work
i have no signal problem too, after doing firmware update using wifi, now my VS995 won't register to GSM/LTE network and it says Sim Card is not from Verizon...
how to activate this phone? i'm not in USA as your problem i cannot activate the VS995 using Verizon services,..
what should we do? to activate manually without the Verizon simcards??
Mine was showing no signal until I made a call, then it worked. I'm in the US, though.
VS995
LineageOS 14.1
Verizon
Habe you tried changing to Global. I am in the UK and have a vs995 and i am getting the not a verizon sim (which you can ignore). My problem is that using my contract carrier (EE) i cannot access 4G only 3G GSM but if i use a different carrier sim (O2) 4G/LTE is working.
hey..
can anyone pls share the qcn for vs995..?

No signal on stock ROM and only 3g on custom Oreo roms

I decided to flash stock ROM again after having some camera issues on all Oreo ROMs. I have done this process many times and my PC is all set up to do a stock flash. This time after flashing stock rom for my UK g5 plus, I booted to no signal. After repeating the stock ROM flash a few times and, trying a few APN options and switching to 3g and back to 4g with nothing working, I realized there is a problem. After this, I tried going back to 8.1 pixel and Nitrogen, which did return my signal but, no 4g only 3g.
I'm a little confused as to what is going on here, no custom ROM flash can leave any effect after fastbooting stock to my knowledge. Any ideas?
How to
Credits @Castell93
Step by step:
1. Flash TWRP.
2. Flash Pixel Experience rom if we haven't flashed yet.
3. Turn on phone with flashed rom to obtain network signal
4. Here we will get the IMEI and only have 3g signal, so we need to restart the phone in bootloader mode and type in fastboot "fastboot erase modemst1" and "fastboot erase modemst2", these two command will give us IMEI and 4g signal.*
5. Turn on Pixel Experience again to obtain 4g(verify it pls), shutdown and enter Recovery mode (TWRP).
6. Do a backup of EFS and install stock rom.
7. Restore EFS backup and enjoy.
* NOTE: It's very important to turn on the phone once flashed Pixel Experience to obtain IMEI info and turn on again to obtain 4G.
This works to get 4g but volte no longer is working (used to be fine on nougat). I'm using TMobile usa
maqsur said:
This works to get 4g but volte no longer is working (used to be fine on nougat). I'm using TMobile usa
Click to expand...
Click to collapse
So, are you able to get back the 4G mobile data (4G LTE) at least?
Yes, I get LTE again, but not volte. Sad
Currently, all Oreo roms are causing this issue because they seem to update IMEI info and the modems. Once an Oreo rom has been flashed, there is no way to get voLTE back at the moment, however 4G can work again (with the method above).This issue will probably not be solved until the official Oreo rom is released by Motorola.
Here is the link for a forum about this https://forum.xda-developers.com/g5-plus/help/restore-imei-0-moto-g5-xt1687-t3739808.
Hello, I know this thread is old. But I have a moto g5 xt1670 and it's been a week since I have lost 3g and 2g in my phone. I only have 4g. So I can't make nor receive calls. It is on stock Oreo 8.1. Going back to 7.0 stock didn't help. Neither Going to custom rom 9.0. don't know what else to do.
ajmdve said:
Hello, I know this thread is old. But I have a moto g5 xt1670 and it's been a week since I have lost 3g and 2g in my phone. I only have 4g. So I can't make nor receive calls. It is on stock Oreo 8.1. Going back to 7.0 stock didn't help. Neither Going to custom rom 9.0. don't know what else to do.
Click to expand...
Click to collapse
Trying using the QCOM option in the fastboot menu. Have been stuck on 3g since late 2017 and finally got it back by selecting that option which reboots me into the OS with working 4g regardless of what rom I flash. Don't know if it will work for you but try it and let me know.

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