Conditions: p760, stock, locked rom v20c, no root - updated by air
Problem: I must restart phone anytime I've got into "no gsm signal" zone (underground garage) otherwise no connectivity anymore.
Questions:
Is it possible to restart only baseband radio? (air plane mode doesn't help)
Is there better baseband radio for Orange/DREI Austria?
In mean time: BL unlocked, phone rooted, CWM, tried V20H, V20I, CM 10.1.3
Everything is working awesome - except main issue
I would really appreciate any hint....
Thank you
I read that overclocking may help as an extreme option. One more idea is to use manual search of the mobile network(instead of automatic).
Related
Hi,
TL;DR version below.
Note: This is just a traceback that may help diagnose the problem.
I "own" an Ace (S5830M, everything from i/C works fine). I was playing around with some custom ROMs and evertything was going pretty fine. I installed Jelly Blast (OTA 3) and flashed back to stock a few times, everything was fine and working. Used the recovery/backup functionality from CWM (5.0) to switch between the mentioned installations and it was all good.
Here start the real problem:
During one of the instalation of the custom ROM i went to Advanced -> Format /system (Because probably I miss read the instructions). After this the phone booted and didn't bootlooped, instead it just showed the initial logo (white letters, phone model. Not Samsung animation). As I noted it was stuck I flashed stock from Odin and got it working back.
Everything is fine, the phone works as intended, exept that it "can't" use the baseband I was using before (850 MHz frequency, 3G). I say "can't" because after n tries I was able to send 1 SMS, and only one. All the others failed. And on really unusual occasions I get signal and the phone tells me the provider (Kolbi/ICE) but after a few seconds it loses the connection/signal.
What I've tried so far:
Go to Settings->Wireless Connections->Movile Networks:
There I tried to choose my carrier, but isn't listed 99% the time. The other two are(Claro/movistar). So I set it to automatic.
Check IMEI:
It is the right one
Try to restore from a previous working state with CWM:
I can't it says that there's a MD5 missmatch. (Can I force it?)
Flash a Modem file that is known to work (With another, same model, phone and carrier)
Same sympthoms: does not work.
Dial *#197328640# and play with the settings:
Here I setted to: Type: DUAL_MODE_UMTS_PREF
Band: AUTO
These are the same settings that the working phone.
Flash the stock carrier-branded firmware.
Without luck so far.
====================================================
TL;DR
I have two phones, same model and same carrier. One does not detect the 850MHz band (3G to GMS) so I get no service 99.99% the time, but I was able to send a single SMS. All this after formating /system via CWM.
I've tried to use the same setup and setting from the working phone without success.
Any help or hint would be greatly appreciated.
Footnote: English is not my native language, please understand if I confused some of the tech terms even if IT is my field.
niant said:
Hi,
TL;DR version below.
Note: This is just a traceback that may help diagnose the problem.
I "own" an Ace (S5830M, everything from i/C works fine). I was playing around with some custom ROMs and evertything was going pretty fine. I installed Jelly Blast (OTA 3) and flashed back to stock a few times, everything was fine and working. Used the recovery/backup functionality from CWM (5.0) to switch between the mentioned installations and it was all good.
Here start the real problem:
During one of the instalation of the custom ROM i went to Advanced -> Format /system (Because probably I miss read the instructions). After this the phone booted and didn't bootlooped, instead it just showed the initial logo (white letters, phone model. Not Samsung animation). As I noted it was stuck I flashed stock from Odin and got it working back.
Everything is fine, the phone works as intended, exept that it "can't" use the baseband I was using before (850 MHz frequency, 3G). I say "can't" because after n tries I was able to send 1 SMS, and only one. All the others failed. And on really unusual occasions I get signal and the phone tells me the provider (Kolbi/ICE) but after a few seconds it loses the connection/signal.
What I've tried so far:
Go to Settings->Wireless Connections->Movile Networks:
There I tried to choose my carrier, but isn't listed 99% the time. The other two are(Claro/movistar). So I set it to automatic.
Check IMEI:
It is the right one
Try to restore from a previous working state with CWM:
I can't it says that there's a MD5 missmatch. (Can I force it?)
Flash a Modem file that is known to work (With another, same model, phone and carrier)
Same sympthoms: does not work.
Dial *#197328640# and play with the settings:
Here I setted to: Type: DUAL_MODE_UMTS_PREF
Band: AUTO
These are the same settings that the working phone.
Flash the stock carrier-branded firmware.
Without luck so far.
====================================================
TL;DR
I have two phones, same model and same carrier. One does not detect the 850MHz band (3G to GMS) so I get no service 99.99% the time, but I was able to send a single SMS. All this after formating /system via CWM.
I've tried to use the same setup and setting from the working phone without success.
Any help or hint would be greatly appreciated.
Footnote: English is not my native language, please understand if I confused some of the tech terms even if IT is my field.
Click to expand...
Click to collapse
Flash a new rom and kernel
Rahul4Ace said:
Flash a new rom and kernel
Click to expand...
Click to collapse
Yeah, that could fix it. BTW, was there any need to quote the whole OP?
Hi all
I have P768 and i'm having an issue with radio. I flashed JB from South Africa, everything works great.. at least in begining. Randomly my phone stops receiving calls, text messages, data connection.. It's like my phone became an ipod
So, i assume the problem is my radio, i tried flashing back to ICS to see if baseband in phone's seetings became different, but unfortunatelly for me, it is not changing. I offline flashed euro 20b, ics, but my baseband is not changing (System settings > About phone > Software information > Baseband version > L6260_MODEM_SIC_01.1230.00)
I want found a radio.zip in carlos thread, but it is for P769. I dont want to flash that because i can lost radio permanently, since my phone is not changing that in offline flash.
I'm wondering where can i get those files, i have JB P768 kdz, can i extract the radio file from that and flash it via CWM into my phone?
I already tried switching radio file (LGP768.fls or something i don't remember now), but it dont change either.
I think the only way is with CWM i don't know, but if someone could help me, it'll be much apreciated
Hi shucrut,
To this date, the only method to change radio (baseband) of L9 is through KDZ flashing (online or offline, whatever).
If you flashed KDZ and think the baseband has not changed, what is happening is simple: the info in System settings > About phone > Software information > Baseband version doesn't change, well, at least in several versions of KDZ (ICS or JB) I flashed, the Baseband info was the same.
But, there is a best place to check baseband version: in Hidden Menu > Version Info > Factory Version.
If you flashed a KDZ changing the baseband (*.fls) you will see, Factory Version reflects the baseband.
For example, if you used a KDZ of V20B Australia changing the baseband by LGP768.fls of V10B Claro Brazil, you will see: LGP768fAT-00-V10b-724-05-AUG-26-2013 regardless of the version of KDZ.
Hope this helps.
TicoTeco said:
Hi shucrut,
To this date, the only method to change radio (baseband) of L9 is through KDZ flashing (online or offline, whatever).
If you flashed KDZ and think the baseband has not changed, what is happening is simple: the info in System settings > About phone > Software information > Baseband version doesn't change, well, at least in several versions of KDZ (ICS or JB) I flashed, the Baseband info was the same.
But, there is a best place to check baseband version: in Hidden Menu > Version Info > Factory Version.
If you flashed a KDZ changing the baseband (*.fls) you will see, Factory Version reflects the baseband.
For example, if you used a KDZ of V20B Australia changing the baseband by LGP768.fls of V10B Claro Brazil, you will see: LGP768fAT-00-V10b-724-05-AUG-26-2013 regardless of the version of KDZ.
Hope this helps.
Click to expand...
Click to collapse
Thanks for repplying. The thing is that for Brazil they not updated P768 to JellyBean, so i'm on the way to flash JB on this, because ICS is too much slow in many situations..
I will try to explain what is hapening and if you could, please, help me figure this out.
My network provider is Oi, it operates in frequency 1900MHz for 2G and 2100MHz for 3G. Another networks here uses different frequencies, one is not compatible with another, so the phones here need to be quad band (850, 900, 1800, 1900), 3G (850, 1900, 2100)
So i flashed already many roms and can tell some experiences i had:
- MEXICO JB: Everything working normal, except for 3G: I think LG disabled the 3g working in 2100MHz on mexico roms, so i have not 3g
- SOUTH AFRICA JB: Everything works, including 3G . The strange thing is that after a day using it without rebooting the phone, i simple lost carier signal, so i cannot receive/send messages or calls. In this state, my phone shows me i do have signal, but nothing works.
--- I tried switching the radio.fls from many roms to see if this problem disappear, like Brazil's ICS radio, mexico radio, europe, p769 v21 radio.. The problem persists after every test
--- Strange thing is that sometimes took me a day to lost signal, but sometimes took me less than 2 hours
- VIETNAM JB: same as SOUTH AFRICA
- EMIRATED ARAB JB: same as SOUTH AFRICA
So this is my situation, i'm stucked with a locked bootloader and ICS due to this carrier's signal problem..
I dont know if LG disabled something in these roms that dont use some frequencies.. After some search, i found this:
http://www.worldtimezone.com/gsm.html
looks like some countries do use 2100MHZ for 3g, but still gives me that problem. I don't know what else i can do
Sorry for late reply, I've been busy the last days.
So, did you flash a KDZ (Mexico, South Africa, Vietnam, etc.) switching the baseband in the middle of the flashing, right?
And the version of the baseband is showing in Hidden Menu > Version Info > Factory Version?
Did you make another modifications (like changing rild or lge-ril.so)?
I also tested several JB versions (Mexico, Australia, Open Europe, etc.) with the ICS Claro Brazil baseband and didn't notice any abnormal behavior (radio related, of course; the roms have their own bugs:silly.
But maybe the difference is in the methodology. When "nothing works", if you switch (off-on) Airplane mode, makes any difference? Signal strength is showing in status bar? After reboot, the phone returns to normal?
I will try the same versions (Vietnam and Emirated Arab I have not yet experienced!), but now my bootloader is unlocked, and my provider is Claro BR.
hi every one.
i have Sony Ericsson xperia acro IS11S (AU BY KDDI) came with android 4.0.4 i updated it into cyanogenmod 10.2 Jelly bean 4.3.1 by xda member: Don No 1
every thing worked good except for the network, it shows no signal in network icon , tried to make calls said (to place a call, first turn off airplane mode) but airplane is turned off. on network setting i can't search for network manually.
I remember when i installed (cyanogenmod 10.2) first showed massage (insert SIM card , you need to refer to the SIM card instructions that came with your device). My SIM worked on otther mobile also tested another SIM in my phene but didn't work too.
Note: cyanogenmod 10.2 doesn't support hidden menu codes like engineering mode.
so please help me to fix this issue.
thanks..
hussam2020 said:
hi every one.
i have Sony Ericsson xperia acro IS11S (AU BY KDDI) came with android 4.0.4 i updated it into cyanogenmod 10.2 Jelly bean 4.3.1 by xda member: Don No 1
every thing worked good except for the network, it shows no signal in network icon , tried to make calls said (to place a call, first turn off airplane mode) but airplane is turned off. on network setting i can't search for network manually.
I remember when i installed (cyanogenmod 10.2) first showed massage (insert SIM card , you need to refer to the SIM card instructions that came with your device). My SIM worked on otther mobile also tested another SIM in my phene but didn't work too.
Note: cyanogenmod 10.2 doesn't support hidden menu codes like engineering mode.
so please help me to fix this issue.
thanks..
Click to expand...
Click to collapse
I have the same phone and i root it install custom roms, kernels but working fine. i guess if you flash your phone to stock and update your phone using Sony PC Companion then your problem gonna fix. Also you said you update "cyanogen mod 10.2 Jelly bean 4.3.1" i guess that not capable with your phone (wrong file for IS11S)
This is the stock firmware - IS11S_4.0.1.B.0.118_au.ftf
or you can use - IS11S_4.0.1.B.0.112_KDDI.ftf (Can ROOT)
try to find those files (Google it) if you can't fix then contact me i may can help you
First upon there are few senior guys in here who hates noobs questions, to them " Don't forget you too where a nobiee in the beginning."
NOw my story!!
2 weaks before I brought one unlocked E970 from my friend, which runs CM11 nightly 13. The first thing I did was updating to 14 which was just released. The phone had little heating problems and gps fixing issue, also terrible battery backup due to wake locks.
So I flashed the cm 10.2 stable and found all issues fixed except the phone fails not register in 900mhz 2G networks in India (I mean weak signal in 900mhz, where other carriers like DOCOMO which works on 1800mhz are works just fine).
After reading a lot I decided to flash on nexus 4 radio (.54),but there is no hope.
Then I flash back the stock ATT_JB radio and find the network problem is resolved have all frequencies (900/1800mhz gsm) and carriers listed, but my sim is not recognizing.
Ok good, I start flashing almost every radio up there
E970,e971,e973,e977 - all gives the No sim error. ( even on LS970) ( surprisingly the all shows the same baseband also)
but all the nexus 4 radios did works, but terrible signal in GSM 900mhz. ( also experience few problems in .84 and above)
Guys I even flashed on E980 modem and find the network and SIM works amazing but no audio, speaker and demigod crash. Which can be understood since e980 is snapdragon 600 SOC.
OK I must have broke some thing lets go to the beginning, so I did the LGNPST and return my phone to 4.1.2 stock att&t.
results -- Stock rom and stock rado
problems-- not even network scan is working( error in scanning network), and of curse no SIM!!!
That's it> I rooted my phone by using freegee unlocked my boot loader and install CWM. Then flashed back the CM11 and nexus radio. Atleast the phone is working expect the volume keys are inverted.
I may have broke the EFS, but I have IMEI number and phone working in N4 modem. So the issue is with the ATT radio which may be some RIL issue I guess.
In order to get my phone useful, either I have to make the ATT radio accpet my SIM or some have edit the nexus4 radio and make it give a good signal in gsm 900mhz. Also the inverted volume keys are awkward.
To be honest I have no idea what to do next, but I strongly feels its a software error and can be fixed, BUT HOW?
harirajrin said:
First upon there are few senior guys in here who hates noobs questions, to them " Don't forget you too where a nobiee in the beginning."
NOw my story!!
2 weaks before I brought one unlocked E970 from my friend, which runs CM11 nightly 13. The first thing I did was updating to 14 which was just released. The phone had little heating problems and gps fixing issue, also terrible battery backup due to wake locks.
So I flashed the cm 10.2 stable and found all issues fixed except the phone fails not register in 900mhz 2G networks in India (I mean weak signal in 900mhz, where other carriers like DOCOMO which works on 1800mhz are works just fine).
After reading a lot I decided to flash on nexus 4 radio (.54),but there is no hope.
Then I flash back the stock ATT_JB radio and find the network problem is resolved have all frequencies (900/1800mhz gsm) and carriers listed, but my sim is not recognizing.
Ok good, I start flashing almost every radio up there
E970,e971,e973,e977 - all gives the No sim error. ( even on LS970) ( surprisingly the all shows the same baseband also)
but all the nexus 4 radios did works, but terrible signal in GSM 900mhz. ( also experience few problems in .84 and above)
Guys I even flashed on E980 modem and find the network and SIM works amazing but no audio, speaker and demigod crash. Which can be understood since e980 is snapdragon 600 SOC.
OK I must have broke some thing lets go to the beginning, so I did the LGNPST and return my phone to 4.1.2 stock att&t.
results -- Stock rom and stock rado
problems-- not even network scan is working( error in scanning network), and of curse no SIM!!!
That's it> I rooted my phone by using freegee unlocked my boot loader and install CWM. Then flashed back the CM11 and nexus radio. Atleast the phone is working expect the volume keys are inverted.
I may have broke the EFS, but I have IMEI number and phone working in N4 modem. So the issue is with the ATT radio which may be some RIL issue I guess.
In order to get my phone useful, either I have to make the ATT radio accpet my SIM or some have edit the nexus4 radio and make it give a good signal in gsm 900mhz. Also the inverted volume keys are awkward.
To be honest I have no idea what to do next, but I strongly feels its a software error and can be fixed, BUT HOW?
Click to expand...
Click to collapse
you done lots of wrong things with your phone for minor network issue.
First flash Stock LGNPST to make your phone usable. And then use it for about a day. sometimes due to low signal it doesn't network.
If still doesn't work then flash EFS and Stock ATT JB modem and then try to use it.
or ask your friend if he gave you and unlocked phone or locked one or he might have bricked modem just like you are trying todo.
Flashing files for diff in your phone makes things worse and might give you Hard brick. so never flash anything of other phones. NEVER.
Your best bet is to use stock rom for a while to make things normal or else you might hard brick your phone and also if you are buying phone from someone else then first check it if everything works or not.
I DID TRIED lgnpst
ShoaibAhmed said:
you done lots of wrong things with your phone for minor network issue.
First flash Stock LGNPST to make your phone usable. And then use it for about a day. sometimes due to low signal it doesn't network.
If still doesn't work then flash EFS and Stock ATT JB modem and then try to use it.
or ask your friend if he gave you and unlocked phone or locked one or he might have bricked modem just like you are trying todo.
Flashing files for diff in your phone makes things worse and might give you Hard brick. so never flash anything of other phones. NEVER.
Your best bet is to use stock rom for a while to make things normal or else you might hard brick your phone and also if you are buying phone from someone else then first check it if everything works or not.
Click to expand...
Click to collapse
I did tried the stock and the modem flashes.. finally I sold it .
Hi all!
I bought an S6 Edge second hand and after flashing a stock ROM, I had the "emergency only" calls issue, I tried everything I could find in the forums to no avail and I ended up taking it to a repair service. I did not think they could fix it but they did and I would like to know what they did to it in order to prevent it from happening again and to know if I can leave it as default (not custom OS) so that it can upgrade.
State of phone when bought:
So, the phone was working well with all carriers (from Colombia). The only thing I was able to notice after I bought it was that it was still on Marshmallow (6.0.1) with carrier branded stuff. It was in perfect shape otherwise.
So I downloaded a stock ROM and installed it using Odin. After this the phone would not let me make calls as it was not registering on the network. It did not even let me make emergency calls despite getting full bars of signal and being able to recognise the list of carriers when attempting to manually connect to them.
Important: The ROM downloaded was for the right version of the phone which was the G925i and the IMEI, serial number and baseband were not altered from the original. Also, I checked the phone to see if it was reported as lost/stolen and it was not (of this I'm sure because in Colombia you can consult a centralised database on any carrier's webpage). Also.. Here in Colombia it is illegal for carriers to lock phones.
Steps I took to fix it:
Downloaded ROMs for all carriers, branded and unbranded, I even installed one from Trinidad and Tobago and a LATAM one.
I performed all the tricks to disable and enable flight mode, location services, try con connect manually to the networks, changing to GSM only, GMS/CDMA, international roaming, etc.
I also extracted modem.bin from an earlier version and flashed the modem.bin with Odin (6.0.1 moden on 7.0, 5.1.1 moden on 6.0.1 and 5.1.1 moden on 7.0). All modems flashed correctly and the issue remained exactly the same.
So I finally gave up.. I installed the latest stock ROM which was an unbranded Nougat (7.0) version and took it to a repair service and they fixed it in a couple hours.
What I noticed after the phone was "repaired":
- The phone was rooted, SuperSu was installed, no other root app was installed.
- On SuperSu, there are entries for ADB shell (they all say Superuser command contents have not been logged for this entry) in a two minute timespan.
- The android version was downgraded to 6.0.1, I was told not to try to update it.
- Developer options was enabled with USB debugging turned on.
- The boot option (the one where you can wipe data and cache partition) was left as original (not the TWRP one).
- The ROM used to downgrade was the same I had before but only downgraded the version.
I suspect this same procedure was performed before on the phone but it had the original ROM carrier branded so it seems as if they installed a custom ROM, rooted it, connected with pc and performed some command line stuff to fix it, then cleaned the bootloader to a stock one.
The questions:
Any ideas what did the repairman do to fix the phone? Also, would it be safe to make a full backup with TWRP and flash again a stock ROM upgraded to 7.0 and then flash the backed up modem to get it working? Or would that possibly screw up the repair?
Thank you all in advance for any help. I'm sure there are lots of people out there experiencing the same "emergency only" issue I had but there does not seem to be a fix around, but clearly there is one! So I hope this sheds some light into what could possibly happen.