Develop Bugs

[Q] r800i problem to conect to 2g

hello i am new here and need some help. my problem is that i have my phone and i cant conect to 2G network in vodafone (greece).my sim card is ok because i have cheked it in another phone. when i switchon my phone i cannot conect to 2g network (it says something about the sim), and it only conects to 3G automatically.the 3G signal is bad in greece so i cannot use it very well and i would like to make it connect to 2g.tell me please what to do ?what kernel,what rom ,what frimware i have to put to fix my problem. my model is Xperia Play R800i.

Try by going to Settings > Wireless & networks > Mobile networks > Network mode and select GSM only.

KralosMX said:
Try by going to Settings > Wireless & networks > Mobile networks > Network mode and select GSM only.
Click to expand...
Click to collapse
i have trai this bat nothing when i select this gsm only i can found network bat i can not conect.so auto reterns to 3G mode

billbob0340 said:
i have trai this bat nothing when i select this gsm only i can found network bat i can not conect.so auto reterns to 3G mode
Click to expand...
Click to collapse
i have instal the cm7 in my phone

billbob0340 said:
i have instal the cm7 in my phone
Click to expand...
Click to collapse
please help someone

Does changing the search mode to manual help?
________________________
Sent from my Xperia Play

MilkyJoePD said:
Does changing the search mode to manual help?
________________________
Sent from my Xperia Play
Click to expand...
Click to collapse
no.is it a problem whith the baseband?

billbob0340 said:
someone please!!!!
Click to expand...
Click to collapse

billbob0340 said:
billbob0340 said:
someone please!!!!
Click to expand...
Click to collapse
hello sore for mi englise.mi fone is
boutloader unlocked :yes
sim lock = 0
it whorks on mi network vodafone .gr only in 3g
wen i select 2g mi antena is closing,i cant conect!!!!
and reterns to 3g .please help me.thank you
Click to expand...
Click to collapse

I also face the same problem, tried with many roms including the r800a but none of them fix the problem.. Is this an issue for all R800 type phone?
Is there any way to fix this?

CM7? Why?
billbob0340 said:
hello i am new here and need some help. my problem is that i have my phone and i cant conect to 2G network in vodafone (greece).my sim card is ok because i have cheked it in another phone. when i switchon my phone i cannot conect to 2g network (it says something about the sim), and it only conects to 3G automatically.the 3G signal is bad in greece so i cannot use it very well and i would like to make it connect to 2g.tell me please what to do ?what kernel,what rom ,what frimware i have to put to fix my problem. my model is Xperia Play R800i.
Click to expand...
Click to collapse
My experience with CM7 has always been negative regarding cellular service. There's always some problem. If you want to fix your problem, and you don't care about losing CM7, try flashing the latest stock firmware you are comfortable with using onto the phone, with the latest baseband that is going to work in your country.
---------- Post added at 04:03 AM ---------- Previous post was at 03:52 AM ----------
tulun said:
I also face the same problem, tried with many roms including the r800a but none of them fix the problem.. Is this an issue for all R800 type phone?
Is there any way to fix this?
Click to expand...
Click to collapse
What is your firmware/baseband?
Your problem is probably in the baseband. Or your service provider isn't in that area with that coverage? Try flashing a different band or ftf.

IMEI problem

Ok, so here is the story:
I had CM 10 installed. After changing mobile operators I found out that my phone was locked. So i searched how to unlock. One of the ways I tried is this:
http://forum.xda-developers.com/showthread.php?t=2176721
Than I have tried installing this app : https://play.google.com/store/apps/details?id=com.spocky.galaxsimunlock&hl=en
I have also been putting original Samsung stock (through Odin) and I always get the same error when I try to dial: Not registered on network.
When I have installed the "galaxy Sim Unlock app" I saw that the app said that my phone is now unlocked but it has invalid IMEI. So I went to check my IMEI and found I had a problem - the IMEI has changed to : 004999010640000/01
When trying to unlock the phone using the above XDA link and inputted the code :*#197328640#
I didn't have UMTS option on the main manu. I had the "DEBUG SCREE" and after clicking that I had PHONE CONTROL and after clicking that I had NETWORK LOCK and NETWORK CONTROL but I didn't have the "Perso SHA256 OFF" option.
I also can't find the the "Qualcomm USB" when I input *#7284# like in this video: http://www.youtube.com/watch?v=_AlQmfMJBK0
I have my original IMEI written on the box but I don't know how to restore it. The phone is GT-N7100.
Anyone got any idea how to fix my phone ? Thank you

fajkovic.sasa said:
Ok, so here is the story:
I had CM 10 installed. After changing mobile operators I found out that my phone was locked. So i searched how to unlock. One of the ways I tried is this:
http://forum.xda-developers.com/showthread.php?t=2176721
Than I have tried installing this app : https://play.google.com/store/apps/details?id=com.spocky.galaxsimunlock&hl=en
I have also been putting original Samsung stock (through Odin) and I always get the same error when I try to dial: Not registered on network.
When I have installed the "galaxy Sim Unlock app" I saw that the app said that my phone is now unlocked but it has invalid IMEI. So I went to check my IMEI and found I had a problem - the IMEI has changed to : 004999010640000/01
When trying to unlock the phone using the above XDA link and inputted the code :*#197328640#
I didn't have UMTS option on the main manu. I had the "DEBUG SCREE" and after clicking that I had PHONE CONTROL and after clicking that I had NETWORK LOCK and NETWORK CONTROL but I didn't have the "Perso SHA256 OFF" option.
I also can't find the the "Qualcomm USB" when I input *#7284# like in this video: http://www.youtube.com/watch?v=_AlQmfMJBK0
I have my original IMEI written on the box but I don't know how to restore it. The phone is GT-N7100.
Anyone got any idea how to fix my phone ? Thank you
Click to expand...
Click to collapse
Same problem here!

Flash with odin new original firmware than it came back by me
Sent from my GT-N7100 using xda app-developers app

fatihaktas1988 said:
Flash with odin new original firmware than it came back by me
Sent from my GT-N7100 using xda app-developers app
Click to expand...
Click to collapse
how to do this? you mean go to Samsung site choose the firmware and them go to PDA options in Odin and Flash?
I not the one who made the thread but already do it and nothing happens! My phone is the same as him.

flashing the new rom wont solve the problem you should work with adb and repair your efs and imei.

amirnote said:
flashing the new rom wont solve the problem you should work with adb and repair your efs and imei.
Click to expand...
Click to collapse
can you help me do this?

fajkovic.sasa said:
Ok, so here is the story:
I had CM 10 installed. After changing mobile operators I found out that my phone was locked. So i searched how to unlock. One of the ways I tried is this:
http://forum.xda-developers.com/showthread.php?t=2176721
Than I have tried installing this app : https://play.google.com/store/apps/details?id=com.spocky.galaxsimunlock&hl=en
I have also been putting original Samsung stock (through Odin) and I always get the same error when I try to dial: Not registered on network.
When I have installed the "galaxy Sim Unlock app" I saw that the app said that my phone is now unlocked but it has invalid IMEI. So I went to check my IMEI and found I had a problem - the IMEI has changed to : 004999010640000/01
When trying to unlock the phone using the above XDA link and inputted the code :*#197328640#
I didn't have UMTS option on the main manu. I had the "DEBUG SCREE" and after clicking that I had PHONE CONTROL and after clicking that I had NETWORK LOCK and NETWORK CONTROL but I didn't have the "Perso SHA256 OFF" option.
I also can't find the the "Qualcomm USB" when I input *#7284# like in this video: http://www.youtube.com/watch?v=_AlQmfMJBK0
I have my original IMEI written on the box but I don't know how to restore it. The phone is GT-N7100.
Anyone got any idea how to fix my phone ? Thank you
Click to expand...
Click to collapse
Just download the modem tar file (12mb) from here https://docs.google.com/file/d/0BzONq5zHMIxnMkJJYVJ1T09qSzA/edit?pli=1 do a wipe and flash with Odin under phone. After reboot u should have your imei restored. All the best cheers.

ndmuni said:
Just download the modem tar file (12mb) from here https://docs.google.com/file/d/0BzONq5zHMIxnMkJJYVJ1T09qSzA/edit?pli=1 do a wipe and flash with Odin under phone. After reboot u should have your imei restored. All the best cheers.
Click to expand...
Click to collapse
I couldn't wait anymore so I had it restored in the official Samsung repair store. I tried flashing the official firmware several times but no good came from that. Anyway, I hope that other people can have better luck than me and thank you for your help

ndmuni said:
Just download the modem tar file (12mb) from here https://docs.google.com/file/d/0BzONq5zHMIxnMkJJYVJ1T09qSzA/edit?pli=1 do a wipe and flash with Odin under phone. After reboot u should have your imei restored. All the best cheers.
Click to expand...
Click to collapse
When do this, The modem is restored! but the IMEI return with some difference in numbers! mine in the final change from 281 to 291! and I Think it is the problem! I acess the SIM options! can see the bar signal! but in options it says OUT OF SERVICE! and I can´t make calls or send messages! Even the operator Name appears on the status options!

anderson.rg said:
When do this, The modem is restored! but the IMEI return with some difference in numbers! mine in the final change from 281 to 291! and I Think it is the problem! I acess the SIM options! can see the bar signal! but in options it says OUT OF SERVICE! and I can´t make calls or send messages! Even the operator Name appears on the status options!
Click to expand...
Click to collapse
What rom are u on now?

ndmuni said:
What rom are u on now?
Click to expand...
Click to collapse
N7100UBDMA3_N7100ZTODMA2_N7100UBDMA1_HOME.tar
Site Sammobile
Im in Brazil, Think that modens firmware is for another roms! If there´s any rom that can solve the problem please tell me!

Same Problem As Me
ndmuni said:
What rom are u on now?
Click to expand...
Click to collapse
Hye there,
Im facing a same issue here.
Im flash an official stock to recover the phone
the imei has been change .
the baseband has restore
*IMEI HAS CHANGE,EMERGENCY CALL ONLY .. This is the issue
now using Official 4.1.2 ROM..

RootingNoobie said:
Hye there,
Im facing a same issue here.
Im flash an official stock to recover the phone
the imei has been change .
the baseband has restore
*IMEI HAS CHANGE,EMERGENCY CALL ONLY .. This is the issue
now using Official 4.1.2 ROM..
Click to expand...
Click to collapse
Yes! that´s the point.
---------- Post added at 07:02 PM ---------- Previous post was at 06:48 PM ----------
Do thos code: *#1234#
and it shows:
AP: N7100UBALI8
CP N7100DXDMF1
CSC N7100ZTOALI4
its right?

anderson.rg said:
yes! That´s the point.
---------- post added at 07:02 pm ---------- previous post was at 06:48 pm ----------
do thos code: *#1234#
and it shows:
Ap: N7100ubali8
cp n7100dxdmf1
csc n7100ztoali4
its right?
Click to expand...
Click to collapse
ap : N7100xxdmc3 cp:unkown csc : N7100olbdmd1

RootingNoobie said:
Hye there,
Im facing a same issue here.
Im flash an official stock to recover the phone
the imei has been change .
the baseband has restore
*IMEI HAS CHANGE,EMERGENCY CALL ONLY .. This is the issue
now using Official 4.1.2 ROM..
Click to expand...
Click to collapse
anderson.rg said:
Yes! that´s the point.
---------- Post added at 07:02 PM ---------- Previous post was at 06:48 PM ----------
Do thos code: *#1234#
and it shows:
AP: N7100UBALI8
CP N7100DXDMF1
CSC N7100ZTOALI4
its right?
Click to expand...
Click to collapse
https://hotfile.com/dl/197196103/e9...0XXDMB5_N7100OJVDMB1_N7100XXDLK7_XSG.rar.html Flash this with odin first and then the modem i gave you earlier.

ndmuni said:
https://hotfile.com/dl/197196103/e9...0xxdmb5_n7100ojvdmb1_n7100xxdlk7_xsg.rar.html flash this with odin first and then the modem i gave you earlier.
Click to expand...
Click to collapse
flash it together or one by one ?
1. Im Flashing the ROM that you give using ODIN . ..
2. I put the rom on PDA in ODIN
3. Then reboot phone..
Still No Signal/Emergency Calls Only
: baseband recover,but imei no change to ***640000. not my actual IMEI Number.
: bluetooth adress Unavailable
4. Reboot phone to Download ODIN Mode
5. Extract the N7100XXDMG1-modem-IMEI-FIX.rar
6. Select modem.tar.md5 to Phone on ODIN
7. Result
LOST BASEBAND AND IMEI AGAIN..
huhu

RootingNoobie said:
flash it together or one by one ?
1. Im Flashing the ROM that you give using ODIN . ..
2. I put the rom on PDA in ODIN
3. Then reboot phone..
Still No Signal/Emergency Calls Only
: baseband recover,but imei no change to ***640000. not my actual IMEI Number.
: bluetooth adress Unavailable
4. Reboot phone to Download ODIN Mode
5. Extract the N7100XXDMG1-modem-IMEI-FIX.rar
6. Select modem.tar.md5 to Phone on ODIN
7. Result
LOST BASEBAND AND IMEI AGAIN..
huhu
Click to expand...
Click to collapse
wHEN YOU RECOVER YOUR imei, your number is the same that the one one the back of your phone or not? mine is diferent.

modem gsm not2

hi guys
i want modem not2 GSM
to repair (not registered on network)
baseband version
n7100xxufb1
can any one help me please

alshfat said:
hi guys
i want modem not2 GSM
to repair (not registered on network)
baseband version
n7100xxufb1
can any one help me please
Click to expand...
Click to collapse
Searched for available networks manually??

Gurkanwal Chauhan said:
Searched for available networks manually??
Click to expand...
Click to collapse
i do it search munally it still (not registered on network)
when im run *#06# give me imei 004999010640000
it is different my original IMEI mobile not2

What ROM is on the phone? Phone shows correct imei when you dial *#06#?

audit13 said:
What ROM is on the phone? Phone shows correct imei when you dial *#06#?
Click to expand...
Click to collapse
Phone shows correct imei when you dial *#06#? NO different
What ROM is on the phone? 4.4.2

Is it possible the phone had been blacklisted? Tried other sim cards in the phone? Phone used to work with the sim card? Phone supports the cell carrier frequencies?

alshfat said:
Phone shows correct imei when you dial *#06#? NO different
What ROM is on the phone? 4.4.2
Click to expand...
Click to collapse
EFS partition probably, if you flash the official stock ROM for your country and that didn't fix your IMEI, then probably an EFS partition problem.

Baseband not found IMEI unkwon

Hello everyone, I have a Moto Z2 Force XT1789-06. I had updated the firmware and after that the phone is working but the baseband is not found and the IMEI is unknow and of course there is no wi-fi and no carrier signal. I have already tried to flash the original retail firmware and it can be installed accurately but the baseband and IMEI are not identified.
Do you know how can I repair it?
Thank you.

I solved the problem. You can close the discussion.

solocchi said:
I solved the problem. You can close the discussion.
Click to expand...
Click to collapse
How did you solve it?

Yes, I certainly solved the problem.

solocchi said:
Yes, I certainly solved the problem.
Click to expand...
Click to collapse
He asked how, not if you did. Usually on this site it is advised to share you solution so if someone else is trying to fix the same issue they can try what you did.

lol i found that there is not issue for imei = 0, my xt1635 has dual sim , and both IMEI=0, and voice / data work fine

svenrod09 said:
How did you solve it?
Click to expand...
Click to collapse
What problem do you have? "imei unknow" or "baseband not found"? What did you do exactly on the phone?

solocchi said:
What problem do you have? "imei unknow" or "baseband not found"? What did you do exactly on the phone?
Click to expand...
Click to collapse
Well I had the problem of baseband not found but I could solve it, I still continue without a mobile network although the IMEI does appear. The only thing I did was update from nougat to Oreo. The phone is the AT & T variant and is unlocked for all networks. Any solution to have mobile network again?

svenrod09 said:
Well I had the problem of baseband not found but I could solve it, I still continue without a mobile network although the IMEI does appear. The only thing I did was update from nougat to Oreo. The phone is the AT & T variant and is unlocked for all networks. Any solution to have mobile network again?
Click to expand...
Click to collapse
Have you tried installing the latest version of the AT&T OCSX27.109-47-14 firmware? It also happened to me not to have a telephone network and wifi. It is caused by the wrong NON-HLOS.bin file.

solocchi said:
Have you tried installing the latest version of the AT&T OCSX27.109-47-14 firmware? It also happened to me not to have a telephone network and wifi. It is caused by the wrong NON-HLOS.bin file.
Click to expand...
Click to collapse
Yes, that version is the one that installs first now I am with the OPXS27.109-34-15. I'll try flashing the stock ROM maybe the problem is solved.

I managed to get myself in this situation this weekend... When I start my phone in fastboot mode it shows "baseband <not found>" and when I start it I get no wifi or network.
I've flashed almost every Retail firmware from this repo to no avail: https://mirrors.lolinet.com/firmware/moto/nash/official/RETAIL/
Any particular version I should be installing perhaps? Could I install another version that is not retail? Mine is the -05 variant.

felipevsw said:
I managed to get myself in this situation this weekend... When I start my phone in fastboot mode it shows "baseband <not found>" and when I start it I get no wifi or network.
I've flashed almost every Retail firmware from this repo to no avail: https://mirrors.lolinet.com/firmware/moto/nash/official/RETAIL/
Any particular version I should be installing perhaps? Could I install another version that is not retail? Mine is the -05 variant.
Click to expand...
Click to collapse
Try the Lenovo Moto smart assistant. It will download the correct firmware for your model.

Uzephi said:
Try the Lenovo Moto smart assistant. It will download the correct firmware for your model.
Click to expand...
Click to collapse
Nice tool, I wasn't aware of it. I managed to connect it and it asked me to reboot to fastboot mode, but when it is in fastboot mode it says my device is not supported... :crying:

felipevsw said:
Nice tool, I wasn't aware of it. I managed to connect it and it asked me to reboot to fastboot mode, but when it is in fastboot mode it says my device is not supported... :crying:
Click to expand...
Click to collapse
Hello. You have an XT1789-05. You do not have to install a Retail firmware but Latam.
The latam firmware are these:
https://mirrors.lolinet.com/firmware/moto/nash/official/AMXLA/
https://mirrors.lolinet.com/firmware/moto/nash/official/CLALASL/
https://mirrors.lolinet.com/firmware/moto/nash/official/TELMX/

solocchi said:
Hello. You have an XT1789-05. You do not have to install a Retail firmware but Latam.
The latam firmware are these:
https://mirrors.lolinet.com/firmware/moto/nash/official/AMXLA/
https://mirrors.lolinet.com/firmware/moto/nash/official/CLALASL/
https://mirrors.lolinet.com/firmware/moto/nash/official/TELMX/
Click to expand...
Click to collapse
Thanks! The TELMXLA one restored my baseband! :highfive:

felipevsw said:
Thanks! The TELMXLA one restored my baseband! :highfive:
Click to expand...
Click to collapse
You have Mobile Data? I'm from LATAM too

felipevsw said:
Thanks! The TELMXLA one restored my baseband! :highfive:
Click to expand...
Click to collapse
what compilation number did you use?

svenrod09 said:
You have Mobile Data? I'm from LATAM too
Click to expand...
Click to collapse
Yes I have, mobile and wifi. Both were broken.
MooS313 said:
what compilation number did you use?
Click to expand...
Click to collapse
I'm not sure I understand what you mean... I used the latest version available for the TELMX one.

hello i have t-mobile variant , last night i plugged type c cable after that phone keeps rebooting to bootloader and says your device did not start successfully error . I have also flashed the oreo firmware it doesnot fixed that . I can saee baseband null in bootloader . please help

svenrod09 said:
Well I had the problem of baseband not found but I could solve it, I still continue without a mobile network although the IMEI does appear. The only thing I did was update from nougat to Oreo. The phone is the AT & T variant and is unlocked for all networks. Any solution to have mobile network again?
Click to expand...
Click to collapse
Please help me my phone is restatring and show baseband not found

Roaming problem for A3 2017

In conclusion its impossible to make downgrade from oreo to nougat for A3 2017?
I want this because my phone don't have signal in roaming, show this error:the phone is not allowed.
I have tried following:i put my sim card in another phone (working fine),i made hard reset(no work),i tried in safe mode(no work),I switched on-off airplane mode(no work).
What can i do?
Thank you for your help.

gyzoli68 said:
In conclusion its impossible to make downgrade from oreo to nougat for A3 2017?
I want this because my phone don't have signal in roaming, show this error:the phone is not allowed.
I have tried following:i put my sim card in another phone (working fine),i made hard reset(no work),i tried in safe mode(no work),I switched on-off airplane mode(no work).
What can i do?
Thank you for your help.
Click to expand...
Click to collapse
You could reflash the current firmware.

iloveoreos said:
You could reflash the current firmware.
Click to expand...
Click to collapse
I supposed the hard reset what i did is not the same with reflash.
After reflash must be make factory reset?
Thanks.

gyzoli68 said:
I supposed the hard reset what i did is not the same with reflash.
After reflash must be make factory reset?
Thanks.
Click to expand...
Click to collapse
A hard reset wipes the data partition, so if your system partition is corrupted from an update or something, it won't help. When you flash it, it rewrites most the partitions.

iloveoreos said:
A hard reset wipes the data partition, so if your system partition is corrupted from an update or something, it won't help. When you flash it, it rewrites most the partitions.
Click to expand...
Click to collapse
Thanks for the quick response.
If this not help with my roaming problem you know another solution?

gyzoli68 said:
Thanks for the quick response.
If this not help with my roaming problem you know another solution?
Click to expand...
Click to collapse
Any day, man.

"The phone is not allowed" Isn't this Cause 6?
In Touchwiz (stock) ROMs, check with *#9900# > cp log > copy to SD card > look at the internal storage > log > err > litmuslog. If it shows #Cause:6 in this file, this is most commonly sent for imei blacklists, contact both mobile network operators.

No work after firmware reflash .
Any suggestion?
Need help.
The Samsung answer is take it to service.
But why when with nougat working and with oreo didn't!!!!!!

I was at samsung service only to ask ,the answer is :the probably cause is software or the mainboard !!!
And they said for Romania there is 9 firmware!!
At sammobile site was only two,where do i get the rest?

gyzoli68 said:
I was at samsung service only to ask ,the answer is :the probably cause is software or the mainboard !!!
And they said for Romania there is 9 firmware!!
At sammobile site was only two,where do i get the rest?
Click to expand...
Click to collapse
You can also grab firmwares from samfrew (SM-A320FL). Do you get any error code besides "the phone is not allowed" like "phone is not allowed MM#6" or "phone is not allowed MM#2"?

prototype74 said:
You can also grab firmwares from samfrew (SM-A320FL). Do you get any error code besides "the phone is not allowed" like "phone is not allowed MM#6" or "phone is not allowed MM#2"?
Click to expand...
Click to collapse
Only "the phone is not allowed".

gyzoli68 said:
Only "the phone is not allowed".
Click to expand...
Click to collapse
Alright. As you said while roaming I guess your IMEI number got blacklisted in that country you are. If you bought your A3 new and same error occures without roaming then only Samsung support center can fix it.

prototype74 said:
Alright. As you said while roaming I guess your IMEI number got blacklisted in that country you are. If you bought your A3 new and same error occures without roaming then only Samsung support center can fix it.
Click to expand...
Click to collapse
I forget to tell at home I put two Germany SIM card and working .
The error it looks like this:

Anybody know something for my problem?
Prototype74: on the samfrew website is same two firmware for Romania.