Signal - Huawei P9 Lite Questions & Answers

Hello.
I just flashed the latest Lineage Rom and i'm having a problem with signal strength, it's zero. I tried switching through 2g 3g and lte and no succes. Only thing that works is to shutdown-open the phone and the signal is ok for 10 minutes then it goes to zero. Should i try another clean install?
Usually the error is com.android.phone has stopped, when i try to switch networks i usually get this error.
Also the battery heats up but afaik its normal until the rom settles in.
[Solved]
1.install 12122016build(cyanogen) and and back up only boot from it.(via TWRP)
2.install the newest build(cyanogen) and restore boot from the TWRP backup you made

The error shouldn't appear when you try to change the network, I suggest you to do a clean install

I have the same problem... no one replied to me yet...do you have the SIM unlock screen on first boot? or you need to reboot once again after you install the rom?...

Potato997 said:
The error shouldn't appear when you try to change the network, I suggest you to do a clean install
Click to expand...
Click to collapse
Change network by 2G, 3G or LTE? Did that, dosen't change anything, also i did a clean install again.
But at Network Operators it just says Searching... and dosen't find anything, it stays on Searching... for minutes.

Pietro007 said:
I have the same problem... no one replied to me yet...do you have the SIM unlock screen on first boot? or you need to reboot once again after you install the rom?...
Click to expand...
Click to collapse
On fresh and first time i open the phone it says that i don't have a SIM.
If i reboot it says the same.
If i close the phone and then open it, the phone reads the SIM for a few minutes and then it doesn't work.
Tried switching to Airplane Mode, switching 2g, 3g, lte, no succes.
You have the same problem in CM as well?

after installing the rom i dont have the sim unlock screen, on 2nd boot i have sim unlock screen, it says i have signal but calling doesnt work, data dont work, cannot search for networks too..and yeah after 10 minutes or so the signal drops out and i have no service
when i posted in the development thread because nobody replied in the Q&A thread i got s**t on that i should write to the Q&A thread and give logtcats too...
then i added the logcats and even posted in the Q&A thread again but no answer...

Pietro007 said:
after installing the rom i dont have the sim unlock screen, on 2nd boot i have sim unlock screen, it says i have signal but calling doesnt work, data dont work, cannot search for networks too..and yeah after 10 minutes or so the signal drops out and i have no service
when i posted in the development thread because nobody replied in the Q&A thread i got s**t on that i should write to the Q&A thread and give logtcats too...
then i added the logcats and even posted in the Q&A thread again but no answer...
Click to expand...
Click to collapse
Did you tried an older build or CM?

i tried an older boot.img and it worked but i dont want to do compromises like that... it worked on cm13 but not on LOS14.1 , i want to use the rom as it is

Pietro007 said:
i tried an older boot.img and it worked but i dont want to do compromises like that... it worked on cm13 but not on LOS14.1 , i want to use the rom as it is
Click to expand...
Click to collapse
I will try CM13, if that does not work il revert to stock... yay.

Dorin21 said:
On fresh and first time i open the phone it says that i don't have a SIM.
If i reboot it says the same.
If i close the phone and then open it, the phone reads the SIM for a few minutes and then it doesn't work.
Tried switching to Airplane Mode, switching 2g, 3g, lte, no succes.
You have the same problem in CM as well?
Click to expand...
Click to collapse
Dorin21 said:
Did you tried an older build or CM?
Click to expand...
Click to collapse
Dorin21 said:
I will try CM13, if that does not work il revert to stock... yay.
Click to expand...
Click to collapse
1.install 12122016build and and back up only boot from it.(via TWRP)
1.install the newest build and restore boot from the TWRP backup you made

Pietro007 said:
1.install 12122016build and and back up only boot from it.(via TWRP)
1.install the newest build and restore boot from the TWRP backup you made
Click to expand...
Click to collapse
Newest build Cyanogen or Lineage?

Why don't you just install the lasted version and extract the boot.img from the functionality one without doing all that fuss backuping and restoring?

Potato997 said:
Why don't you just install the lasted version and extract the boot.img from the functionality one without doing all that fuss backuping and restoring?
Click to expand...
Click to collapse
Well, did not found a functional rom until now, im just downloading different versions, flash them and see which one works, backup boot.img from the one that works and extract it in latest version.

12122016cyanogenmod boot.img and latest CM13 not LOS13 works, i have tried that...

let it go and return to stock.Honestly when the source-code for harware is not open source , no custom rom will be ok on the long run, is just change . change and change..and seeing how easy it is to brick this device , in my oppinion is doesnt worth the trouble.

Pietro007 said:
12122016cyanogenmod boot.img and latest CM13 not LOS13 works, i have tried that...
Click to expand...
Click to collapse
Thanks mate, worked fine <3
If you ever find a solution for LineageOS pm me.
I tried 3 build and none gave me signal.
Thanks again!

If is anybody reading this thread and can read logs, here are logs i took from the latest LOS14.1 and LOS13
logs from los13:
https://drive.google.com/open?id=0B0ydf40A9fvEY2lkdGNFblo2bDQ
https://drive.google.com/open?id=0B0ydf40A9fvEcEJQUVFhUnltNFk
logs from los14.1:
https://drive.google.com/open?id=0B0ydf40A9fvERkhycU13czhEVlE
https://drive.google.com/open?id=0B0ydf40A9fvEM2JobE9YQXQ1am8

Related

[Help][No Sim Card Working][HUGE Issue!!]No service issue and blank imei PLEASE HEL

My brother who lives in dubai used his sim card in this phone but ever since i got the phone in Pakistan ive tried using my sim but i get no service.
My guess is it only works with 4g LTE but i cant try cuz where i live here's only 3g and 2g coverage.
So i started using it as a wifi tablet.
Dialed *#06# and it showed both imei numbers but ever si ce i updated to purenexus 7.1.2 rom it gives me the same service error but dialing *#06# gives nothing but two plain zeroes like in the screenshot. Can anyone please help me resolve this i would greatly appreciate any help regarding this.please help my phone is useless without a sim card.
Screenshots show how it detects the sim card perfectly and gets the number.
-searches for available networks but cant register on a network:crying:
-Screenshots
alihassan1397 said:
-Screenshots
Click to expand...
Click to collapse
Do the network settings reset, see if it works. if not, install app called LTE Discovery and reset thru it. if still fails, flash stock rom
pijes said:
Do the network settings reset, see if it works. if not, install app called LTE Discovery and reset thru it. if still fails, flash stock rom
Click to expand...
Click to collapse
Please bro u gotta help me. Non of it is workin. I flashed a debloated version of stock rom through
Twrp. But imei is still zero. Im freaking out I don't know what to do
alihassan1397 said:
Please bro u gotta help me. Non of it is workin. I flashed a debloated version of stock rom through
Twrp. But imei is still zero. Im freaking out I don't know what to do
Click to expand...
Click to collapse
Flash stock rom using rsdlite
pijes said:
Do the network settings reset, see if it works. if not, install app called LTE Discovery and reset thru it. if still fails, flash stock rom
Click to expand...
Click to collapse
pijes said:
Flash stock rom using rsdlite
Click to expand...
Click to collapse
I've never used rsdlite. Can u please provide me a tutorial for my phone and how I can flash all the files. I only know flashing through fastboot or twrp. Thanks
EDIT: will try this tomorrow when I have access to my pc.
https://forum.xda-developers.com/moto-x-play/general/guide-how-to-flash-factory-image-using-t3545303

Changed csc, lost signal, need help

Hello, yesterday i bought used samsung galaxy s7 edge dual, sm-g935fd. It was rooted, owner said root was done to flash a rom to let phone see two sims. Went back home, started to install apps, and saw that snapchat doesnt work with rooted phone, so turned superSU, chose full unroot, phone did restart but stuck on bootloop. All I saw, was csc:g935f0xx1bph1 and pda:G935FXXU1BPLB. Could't find matching pda and csc roms, so installed another, for g935f, and everything worked fine, except from network, it only says emergency calls only and no signal, but it finds that my sim is from tele2.
On other thread i saw that i can use home_csc for my csc code, and any other pda, bl, ap, tried that and odin failed to flash it, so now flashed netherlands stock rom that changed my AP:G935FXXU1DQEF CP:G935FXXU1DQD7 CSC:G935FPHN1DQD1 Model: SM-G935F/DS.
Can you guys help me to get my network signal working again? I think that matching software for my phone would fix it, but i cant find which one to flash, or is there anything else that could have caused that?
Thank you for your help.
iTrolis said:
Hello, yesterday i bought used samsung galaxy s7 edge dual, sm-g935fd. It was rooted, owner said root was done to flash a rom to let phone see two sims. Went back home, started to install apps, and saw that snapchat doesnt work with rooted phone, so turned superSU, chose full unroot, phone did restart but stuck on bootloop. All I saw, was csc:g935f0xx1bph1 and pda:G935FXXU1BPLB. Could't find matching pda and csc roms, so installed another, for g935f, and everything worked fine, except from network, it only says emergency calls only and no signal, but it finds that my sim is from tele2.
On other thread i saw that i can use home_csc for my csc code, and any other pda, bl, ap, tried that and odin failed to flash it, so now flashed netherlands stock rom that changed my AP:G935FXXU1DQEF CP:G935FXXU1DQD7 CSC:G935FPHN1DQD1 Model: SM-G935F/DS.
Can you guys help me to get my network signal working again? I think that matching software for my phone would fix it, but i cant find which one to flash, or is there anything else that could have caused that?
Thank you for your help.
Click to expand...
Click to collapse
I don't think it's CSC related...maybe modem problem.
Flash custom ROM,install magisk..hide magisk for Snapchat and u could use it with a rooted phone
gabytzubc said:
I don't think it's CSC related...maybe modem problem.
Flash custom ROM,install magisk..hide magisk for Snapchat and u could use it with a rooted phone
Click to expand...
Click to collapse
can you link me to easiest way to flash custom rom? im new to samsung so i definetely will have some issues while flashing it
iTrolis said:
can you link me to easiest way to flash custom rom? im new to samsung so i definetely will have some issues while flashing it
Click to expand...
Click to collapse
Check Superman ROM..u have there guide for rooting and install the ROM. It's the easiest way. U need to flash twrp with Odin.. get lost of dm verity with a flash able file in twrp ..have the ROM,add-ons ,kernel if needed on SD card and ur ready to go..in half an hour u will have root and custom rom.
https://forum.xda-developers.com/s7...overy-official-twrp-hero2lte-3-0-0-0-t3334084
gabytzubc said:
Check Superman ROM..u have there guide for rooting and install the ROM. It's the easiest way. U need to flash twrp with Odin.. get lost of dm verity with a flash able file in twrp ..have the ROM,add-ons ,kernel if needed on SD card and ur ready to go..in half an hour u will have root and custom rom.
https://forum.xda-developers.com/s7...overy-official-twrp-hero2lte-3-0-0-0-t3334084
Click to expand...
Click to collapse
thank you, ill have to try this, but do you have any idea of what could have caused that signal lose?
iTrolis said:
thank you, ill have to try this, but do you have any idea of what could have caused that signal lose?
Click to expand...
Click to collapse
Sounds like your EFS is corrupted...
*Encrypted File System (EFS) | The EFS refers to a folder called EFS which can store information like meid, imei, serial number, config, diag settings and radio settings, etc in an encrypted format at the file system level stores. So it is very neccessary for us to backup EFS before flashing ROMs.*
EasyAndroidPro said:
Sounds like your EFS is corrupted...
*Encrypted File System (EFS) | The EFS refers to a folder called EFS which can store information like meid, imei, serial number, config, diag settings and radio settings, etc in an encrypted format at the file system level stores. So it is very neccessary for us to backup EFS before flashing ROMs.*
Click to expand...
Click to collapse
thank you, and what is the best option for me now to get signal working with custom or stock rom doesnt matter?
iTrolis said:
thank you, and what is the best option for me now to get signal working with custom or stock rom doesnt matter?
Click to expand...
Click to collapse
check if your IMEI is in your device settings if not try this guide
https://forum.xda-developers.com/s7-edge/how-to/guide-how-to-fix-check-drk-imei-issues-t3379516
EasyAndroidPro said:
check if your IMEI is in your device settings if not try this guide
https://forum.xda-developers.com/s7-edge/how-to/guide-how-to-fix-check-drk-imei-issues-t3379516
Click to expand...
Click to collapse
there are both imei for both sim slots
Try this ,maybe it helps
http://recomhub.com/blog/how-to-fix...n-network-and-repair-galaxy-null-imei-number/
gabytzubc said:
Try this ,maybe it helps
http://recomhub.com/blog/how-to-fix...n-network-and-repair-galaxy-null-imei-number/
Click to expand...
Click to collapse
cant do 4 step. says not registered on network
gabytzubc said:
Check Superman ROM..u have there guide for rooting and install the ROM. It's the easiest way. U need to flash twrp with Odin.. get lost of dm verity with a flash able file in twrp ..have the ROM,add-ons ,kernel if needed on SD card and ur ready to go..in half an hour u will have root and custom rom.
https://forum.xda-developers.com/s7...overy-official-twrp-hero2lte-3-0-0-0-t3334084
Click to expand...
Click to collapse
okay, managed to install this rom, but still no signal. there should be something that i done that prevents phone to connect to network, so i just need to know what to install i think
iTrolis said:
cant do 4 step. says not registered on network
Click to expand...
Click to collapse
Put some screenshots from about phone.. network...maybe will see the problem
. Did u try another sim?
gabytzubc said:
Put some screenshots from about phone.. network...maybe will see the problem
. Did u try another sim?
Click to expand...
Click to collapse
I didn't try another sim. But now I'm using my cracked s6 edge with same simcard installed and it works fine
iTrolis said:
I didn't try another sim. But now I'm using my cracked s6 edge with same simcard installed and it works fine
Click to expand...
Click to collapse
https://www.unlockscope.com/help/knowledgebase/how-to-fix-not-registered-on-network/ try the method for S7 edge
gabytzubc said:
https://www.unlockscope.com/help/knowledgebase/how-to-fix-not-registered-on-network/ try the method for S7 edge
Click to expand...
Click to collapse
if i write that *#4636*# nothing happens, if i try to call it, it says not registered on network
iTrolis said:
if i write that *#4636*# nothing happens, if i try to call it, it says not registered on network
Click to expand...
Click to collapse
Use then *#0*#
gabytzubc said:
Use then *#0*#
Click to expand...
Click to collapse
same result, my phone sees my sim contacts, it sees which career my sim belongs, but cant connect to it, phone acts like im not using sim, i cant do any call, just tried to do these *#xx#* things without sim in my s6 edge and the result was the same as in s7 edge with sim
iTrolis said:
same result, my phone sees my sim contacts, it sees which career my sim belongs, but cant connect to it, phone acts like im not using sim, i cant do any call, just tried to do these *#xx#* things without sim in my s6 edge and the result was the same as in s7 edge with sim
Click to expand...
Click to collapse
I cant find the code for full service menu.
Try call ur operator..to try registering ur phone on network..call them from another number
gabytzubc said:
I cant find the code for full service menu.
Try call ur operator..to try registering ur phone on network..call them from another number
Click to expand...
Click to collapse
i dont think that they can help me. I am not really good in flashing, because english is not my native language so i dont know what kernel means, whats the difference between firmware and software, and even rom, but i think that i have wrong bl/ap/csc/pda or something like that. Found that F in sm g935fd means it is international, looks like i can flash any country unbranded stock rom, but somehow it wont work for me, and i cant believe i did that much damage just by clicking on unroot in superSU app..

No signal after restore with TWRP

Hello, I have a problem and I do not know how to solve it. On my Redmi 2TD dead immc memory, I ordered a new motherboard put it on, everything worked. I decided to restore a full archive made with TWRP - made with the old motherboard. Then I rebuilt my IMEI. Now I have sim card, but no signal and the settings are only 2G. It also sees satellites, but does not locate. Maybe I did not have to restore the system, just the data from the old motherboard ?
Has this problem solution ?
Sorry for my bad english
If you have problem with network signal it may have something to do with firmware/bootloader version. Try kitkat or lollipop. You can find on download section
dark_vader said:
If you have problem with network signal it may have something to do with firmware/bootloader version. Try kitkat or lollipop. You can find on download section
Click to expand...
Click to collapse
everything I've tried, fastboot roms, clean instalations - no effect, no signal
getzov said:
everything I've tried, fastboot roms, clean instalations - no effect, no signal
Click to expand...
Click to collapse
Jus Try and download stock fastboot rom for ur device. (i suggest miui 8 firmware) it solved my problem on 2014818.
jbanti said:
Jus Try and download stock fastboot rom for ur device. (i suggest miui 8 firmware) it solved my problem on 2014818.
Click to expand...
Click to collapse
All is tried, I think that problem is wrong IMEI

LG G6 flash

Hi to everyone i have lg g6. Ut no wifi calling and volte settings available. Is there any chance flash with ee firmware because that firmware have volte and wifi call available in uk ?? Any one help ???
Use fulmics. That enables it for me.
basicreece said:
Use fulmics. That enables it for me.
Click to expand...
Click to collapse
I tried to do but my phone get struck in twrp screen
savi4s said:
I tried to do but my phone get struck in twrp screen
Click to expand...
Click to collapse
Flash stock.
Reboot.
Wipe format type yes. (I do this 3-4 times to give it a proper clean)
Flash fulmics bootloader
Flash fulmics
Boot into system. Leave it for 10 mins to boot up.
Go to settings and software update.
Make sure you use magisk and not SU. Seems to work better and makes boot run.
basicreece said:
Flash stock.
Reboot.
Wipe format type yes. (I do this 3-4 times to give it a proper clean)
Flash fulmics bootloader
Flash fulmics
Boot into system. Leave it for 10 mins to boot up.
Go to settings and software update.
Make sure you use magisk and not SU. Seems to work better and makes boot run.
Click to expand...
Click to collapse
Whell im new to install custom rooms i think i need full description and maybe full video to do it ???
Or i will brick my phone ???
savi4s said:
Whell im new to install custom rooms i think i need full description and maybe full video to do it
Or i will brick my phone
Click to expand...
Click to collapse
Read the fulmics thread. It's all in there Is very simple.
basicreece said:
Use fulmics. That enables it for me.
Click to expand...
Click to collapse
your saying you used fulmics to get lte and wi-fi calling?
not to scare op but i had to flash a custom modem to get lte back after loading fulmics rom.
what did you do to get lte to work?
follow this guide, it's very complete, from unlocking to flashing fulmics
also i loved the meditation music wich helped a lot :fingers-crossed:
www youtube com /watch?v=w9KrL2U_mD0
I flashed with fulmics room but still no volte and wifi calling i switched on but volte didnt work so still no volte or wifi call

Infinite bootloop post-install december version

My mobile was updated with the December version and since then I have infinite bootloops
I've reinstalled the November version with myFlash but I'm still the same. I tried with tprw but i have some errors with the /cache partition
Can anybody help me?
Thanks
what december version?
ludditefornow said:
what december version?
Click to expand...
Click to collapse
7.12.7_7.1, after that, my movile bootloop every 30 secons more or less
Now, when i turn the mobile on, it tells me that the SIM is blocked, but I tried the SIM in another mobile and it works
A/B partition are there so if device is stuck in bootloop it should boot from dormant partition.
You have to flash stock firmware.
Try flashing the persist.img from every build that exists till now. If you manage to flash one of them the issue will be fixed. I've tested it myself.
cafernan said:
My mobile was updated with the December version and since then I have infinite bootloops
I've reinstalled the November version with myFlash but I'm still the same. I tried with tprw but i have some errors with the /cache partition
Can anybody help me?
Thanks
Click to expand...
Click to collapse
Please just follow the guide here to get it fixed: https://forum.xda-developers.com/mi-a1/how-to/ota-official-fastboot-image-n2g47h-7-12-t3728929
As it includes all necessary scripts for proper flashing it is secure to use
In worst case, you can also use the appropriate included script to factory reset at the same time when flashing. If nothing else helps, that should do the trick for you
Edwin Hamal said:
Try flashing the persist.img from every build that exists till now. If you manage to flash one of them the issue will be fixed. I've tested it myself.
Click to expand...
Click to collapse
I tried flashing persist.img, and it works!!!
Now I have 2 differents problems.
When I start my mobile, the SIM Pin page shows the message SIM CARD IS LOCKED - NO SERVICE. My sim works in another mobile
When I pu my pin, I get the message "preparing sdcard - Solving errors"
Please just do a full clean flash as recommended by me earlier and your issue should be gone. At least if they are firmware or software related.
After that do a clean flash and that issue should be fixed.
Edwin Hamal said:
After that do a clean flash and that issue should be fixed.
Click to expand...
Click to collapse
Excuse me. What do you want to say with "do a clean flash"?
Follow the guide I linked for you above. You have to use the flash_all script. So please have a look and give it a try.
Edwin Hamal said:
After that do a clean flash and that issue should be fixed.
Click to expand...
Click to collapse
Dont't works
It shows the same message SIM CARD IS LOCKED - NO SERVICE
Any help?
cafernan said:
Dont't works
It shows the same message SIM CARD IS LOCKED - NO SERVICE
Any help?
Click to expand...
Click to collapse
Shooting blindly here.
Have you tried another sim in your phone.
If another sim card works then have you tried changing your sim from carrier. It's easy.
Have you also tried a factory reset?
majamee said:
Have you also tried a factory reset?
Click to expand...
Click to collapse
Yes, and I flash boot and persist too. I think that it's possible a error with any .img inside my phone, but i don't now ...
My phone show me the page with de SIM Pin. I put the correct Pin, and after that phone don't connect with the network. I can't call because it's without service.
I tried the same SIM in another phone and it works. I tried diferents sim in my phone and all of them fail
Please, someone has any idea about what I need to do
Thanks
cafernan said:
Yes, and I flash boot and persist too. I think that it's possible a error with any .img inside my phone, but i don't now ...
My phone show me the page with de SIM Pin. I put the correct Pin, and after that phone don't connect with the network. I can't call because it's without service.
I tried the same SIM in another phone and it works. I tried diferents sim in my phone and all of them fail
Please, someone has any idea about what I need to do
Thanks
Click to expand...
Click to collapse
Have you tried the script to flash the full stock rom flash_all from https://forum.xda-developers.com/mi-a1/how-to/ota-official-fastboot-image-n2g47h-7-12-t3728929 here as well? If you only flashed the persist.img until now, you should give it a try.
majamee said:
Have you tried the script to flash the full stock rom flash_all from https://forum.xda-developers.com/mi-a1/how-to/ota-official-fastboot-image-n2g47h-7-12-t3728929 here as well? If you only flashed the persist.img until now, you should give it a try.
Click to expand...
Click to collapse
Thanks majamee but I flash all with MiFlash and it doesn't work, this isn't the problema
Finally I checked my IMEI and I discovered that it's 0.
Someone knows how can I recovery the phone's IMEI
Thanks
cafernan said:
Thanks majamee but I flash all with MiFlash and it doesn't work, this isn't the problema
Finally I checked my IMEI and I discovered that it's 0.
Someone knows how can I recovery the phone's IMEI
Thanks
Click to expand...
Click to collapse
http://lmgtfy.com/?q=qualcomm+recover+imei

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