Database Users

Preguntas sobre Flash Rom en T-Mo Glaxy Tab.

Saludos Amigos.
Soy de Puerto Rico. Les escribo en español pues no se inglés, para entender los foros uso el traductor de Google, pero cuando lo uso de español a ingles se pierde mucho el sentido de la oración. Espero puedan ayudarme a entender un poco más esto de los ROM en Androide. Tengo una T-Mobile Galaxy Tab Hace unos días. Llevo mucho tiempo cambiando los Roms a mis teléfonos. Comencé con un Tilt de ATT, luego un Pro, luego Pro 2, etc. Ice algunas cosas con el Vibrant, pero no entendía mucho. Pero si me ayudan tal vez pueda ayudar en algo, pues tengo algo de conocimiento en electrónica y comunicaciones.
En ODIN.
1-Que es el PIT y que es lo que hace?
2-Que es el PDA, Creo que se refiere al ROM como tal pues es el archivo de mayor tamaño, pero quiero estar seguro.
3-MODEM es lo mismo que el radio?
4- Que es el CSC y su uso?
5- Que es el DUMP y cuál es su función?
Tengo la versión Euro y corre de maravilla. Le he probado varios MODEM incluyendo el de él VIBRAN Original, pero este hace las llamadas pero se escucha muy bajo el sonido. Tampoco he logrado conseguir data, aunque si tengo plan de data en mi servicio. Sé que el EURO solo corre E y no 3G, pero ni siquiera E. Alguien podría decirme que plan de data de T-Mobile US debo tener con mi plan de voz?
Creo que son muchas preguntas, pero créanme, este foro es mi vida. En ocasiones reinstalo algunos ROM solo por entretenerme, jejejeje Pueden contestar en inglés, no ahy problema.
Dios les bendiga mucho, de verdad son unos genios.

The forum rules clearly state that all posts MUST be made in English.
Try again, dude, before a mod comes in here and smacks you around

Saludos Amigos.
I'm from Puerto Rico. I write in Spanish because it is not English, to understand the forums use the Google translator, but when I use Spanish to English will lose a lot of the meaning of the sentence. I hope you can help me understand a little more that the ROM in Android. T-Mobile I have a few days ago Galaxy Tab. I have long Roms changing my phone. I started with ATT Tilt, then a pro, then Pro 2, etc. Ice some things with the Vibrant, but did not understand much. But if you help me maybe I can help with anything, because I have some knowledge in electronics and communications.
In ODIN.
1-What is the PIT and what it does?
2-What is the PDA, I think it refers to the ROM as such it is the larger file, but I want to be sure.
3-modem is the same as the radio?
4 - What is the CSC and its use?
5 - What is the DUMP and what is its function?
I have the Euro version and runs great. I have tried several modems including the Original VIBRO, but it makes calls but you hear very low sound. Nor have I managed to get data, even if I have a data plan on my service. EURO I know that I just run and not 3G, but even E. Could anyone tell me which data plan from T-Mobile U.S. I have with my voice plan?
I think there are many questions, but believe me, this forum is my life. Sometimes just to reinstall some entertain ROM, jejejeje can answer in English, ahy no problem.
God bless you, really are geniuses.

japerez5000 said:
Saludos Amigos.
I'm from Puerto Rico. I write in Spanish because it is not English, to understand the forums use the Google translator, but when I use Spanish to English will lose a lot of the meaning of the sentence. I hope you can help me understand a little more that the ROM in Android. T-Mobile I have a few days ago Galaxy Tab. I have long Roms changing my phone. I started with ATT Tilt, then a pro, then Pro 2, etc. Ice some things with the Vibrant, but did not understand much. But if you help me maybe I can help with anything, because I have some knowledge in electronics and communications.
In ODIN.
1-What is the PIT and what it does?
2-What is the PDA, I think it refers to the ROM as such it is the larger file, but I want to be sure.
3-modem is the same as the radio?
4 - What is the CSC and its use?
5 - What is the DUMP and what is its function?
I have the Euro version and runs great. I have tried several modems including the Original VIBRO, but it makes calls but you hear very low sound. Nor have I managed to get data, even if I have a data plan on my service. EURO I know that I just run and not 3G, but even E. Could anyone tell me which data plan from T-Mobile U.S. I have with my voice plan?
I think there are many questions, but believe me, this forum is my life. Sometimes just to reinstall some entertain ROM, jejejeje can answer in English, ahy no problem.
God bless you, really are geniuses.
Click to expand...
Click to collapse
Could be wrong on some of these but here we go.
1. The PIT file contains partition information. I think.
2. PDA pretty much is the ROM.
3. Yes the modem is the same as the radio.
4. I have no idea what the CSC does. Sorry.
5. I have no idea what DUMP does either.
Right now T-Mobile is filtering the use of certain SIM cards based on the IMEI of the device. I don't know if this is just in certain areas or if they are filtering all service areas but in order to do it here in hell with a SIM card that is on a smart-phone plan you would need to change the IMEI of the device to make it avoid their filter.
Hail Satan!

U8800-51 Android 2.2 Stock Rom

Ok, as promised here is a U8800-51 fresh stock froyo (Android 2.2)
http://www.multiupload.com/E1V45X13LH

Thank You So Much!!!
Now I can use my phone again

Hi, where do you find this stock roms?
Regards.
Also. Thanks for the Rom.

3g entel problems
rom has a problem. 3g does not work with Entel Chile. Please help!!!!!
I have a U8800-51 and apply the rom....

Someone please separate the U8800 and U8800+ or pro or whatever forums. This is getting too confusing. And as far as i know the U8800+ FW bricks the U8800.

catolh said:
Someone please separate the U8800 and U8800+ or pro or whatever forums. This is getting too confusing. And as far as i know the U8800+ FW bricks the U8800.
Click to expand...
Click to collapse
+1 on that!

portizchile said:
rom has a problem. 3g does not work with Entel Chile. Please help!!!!!
I have a U8800-51 and apply the rom....
Click to expand...
Click to collapse
Did you backup the apn?
Sent from my U8800-51 using XDA App

No. I tried with several APN and do not work.

portizchile said:
No. I tried with several APN and do not work.
Click to expand...
Click to collapse
Try this, is my apn backup. (Entel Chile).
I created with ApnBackup. (From Market)
This file is located in /sdcard/ApnBackupRestore/
http__://www . multiupload.com/LXDVSNEBTO
Remenber replace the __ and the spaces.
Good Luck..

Oh Thanks vegoki !!

Te Funciono el 3G ? ....
Y te funciono el Room que subieron? .... me gustaria resetearlo completo desde cero, por que desinstale los fondos animados y ahora no puedo instalar ninguno, es raro pero bueno.
--------------------
3G works for you? ....
And I worked the Room that went? .... I would like to completely reset it from scratch, to uninstall the animated backgrounds and now I can not install any, it's weird but good.

No me funcionó el apn. El rom que subieron funciona bien salvo por la conectividad 3G.
Apn does not work. The rom works fine except for 3G connectivity.

trataste de usar los datos apn de otro movil entel? o llama a la operadora para las datos
you try use other data apn form mobil entel? or call the operator for data

Los use pero no funcionaron.
I used but not work.

The problem is the BASEBAND
Hello, the problem for the Phones in CHILE is the Baseband, not the APN configuration.
Your baseband (and mine) is the N° 203026 (MSM7X30203026C00B628SP01_AMSS). That's the reason you only have 2G. You flash a ROM from another country with a radio frequency distinct. We don't have a copy of our ROM, yet.

Gracias.
aun asi el Room no me sirvio y bueno creo que no lo cambiare por que no quiero quedarme sin 3G ...
Alguien me podria ayudar con el problema de que elimine el Pack de fondos animados y ahora no puedo instalar casi ninguno por que no aparecen.
Gracias
-----------------------------------------------------------
Thank you.
even so the Room served and good I do not think he'll change because they do not want to stay without 3G ...
Someone could help me with the problem that eliminates the animated backgrounds pack and now I can install almost any that do not appear.
thanks

No, no me anda el 3G, pero yo no lo uso nunca, así que no es problema para mi.
Otra cosa, el Swype les anda correctamente?, me refiero a si les predice las palabras y todo eso?
________________________________________________________________________
3G doesn't work for me either, but i never use it so... it's not a problem for me.
Another question, Swype works ok for you?, i mean does it predicts the words and all of that?
Thanks c:

Existe alguna forma de usar el baseband de la version anterior y usarla la actual rom o una nueva?
----------------------------------------------------------------------------
Is there any way to use the baseband of the previous version and use the current or a new rom?

Tengo el mismo problema. ¿Alguien tiene la stock Rom de Entel Chile para el U8800-51? Gracias.
----------------------------------------------------------------------------
Same problem here. ¿Anybody have the Entel Chile stock Rom for this device? U88005-1 . Thanks

ricmord said:
Tengo el mismo problema. ¿Alguien tiene la stock Rom de Entel Chile para el U8800-51? Gracias.
----------------------------------------------------------------------------
Same problem here. ¿Anybody have the Entel Chile stock Rom for this device? U88005-1 . Thanks
Click to expand...
Click to collapse
hi, i am also from chile and i am still using the stock rom, so i can connect to entel and movistar 3G and 2G without any problems. If you know how i can extract the base rom, i will gladly do it and upload it for you. please send PM with the explanation, as i dont keep bookmarks of all the forums and threads i post to.

[ROM] KI2 for Dominican Republic (orange) And KG7 from Claro (added)

I wanted to post this, since i haven't found any reference for my country's phones. should be useful for warranty purposes or anything like. this is the official rom for the SGS2 from 'Orange Dominicana'
Updated Link, it's working now
https://hotfile.com/dl/153433145/2d821bc/GT-I9100_DOR.zip.html
PDA:I9100UHKI2
Phone:I9100UHKI1
CSC:I9100DORKI1
By the way, i havent found any reference about this, so it should be listed in other threads about CSC's.
CSC code DOR= Orange Dominicana
Also, for those who search for it, this is KG7 for the SGS2 from Claro Dominicana.
https://hotfile.com/dl/159152066/63177f2/GT-I9100-CDR.zip.html
This is 2.3.4 stock from factory

SG2 I9100 firmware Orange dominicana
Hola Boris,
it's me again, i really need that firmware. please let me know where i can find it.
Samsung Galaxy S2 GT-I9100 for Orange Dominicana
thanks
Andre

I'll update the links.. Not today, but maybe this weekend.
Edit:
I think i posted the link in intratech's thread for original firmwares from carriers and he keeps another working link.
I'll be updating this one, with the untouched file anyways..
Enviado desde mi GT-I9100 usando Tapatalk 2

Thanks,
illl be waiting.

Hey boris...
Is this the 2.3.4 ginger??? If right, do you have an ICS rom for this phone???
Cheers,
Juan Carlos
Sent from my GT-I9100 using XDA

Orange stock rom, still 2.3.4. KL1 is 2.3.6 (wich by the way, works almost perfect with another modem) . If you want ics, you can flash the stock lp7 from Uk (xeu) wich works fine. Still a few bugs, but works well.
Enviado desde mi GT-I9100 usando Tapatalk 2

Thanks a Lot Boris, helped a lot..
Ok..
let me give you a 1,2,3
every firmware, has 3 basic parts. PDA, CSC, And Modem
You can flash diferent parts for each,In your case, take the KL1 for Open Europe if you are interested in 2.3.6, wich is still a lot more stable than 4
It has all the three parts inside.
but in your case, the modem that it has, will not work well here.
you can flash that file, and then flash another file in the modem field.
that file is this one:
https://hotfile.com/dl/155075718/8f2...XXKI1.tar.html
that is the Ki1 modem. it works well here with orange.
you can flash them together.
just put the firmware on PDA, and the modem in Modem (or phone, thats the baseband)
If for any chance, you want the orange logo and stuff,
https://hotfile.com/dl/155075860/c09...ORKI1.exe.html
this is the csc file for orange DR. if you put it, the phone will have even the orange startup logo, but you can loose some extras (like google talk video chat)
and, please, to avoid confusion, let's continue this issue in the right forum, the one for the I9100
Try this post..
http://forum.xda-developers.com/show....php?t=1347564

Jaycee_008 said:
Hey boris...
Is this the 2.3.4 ginger??? If right, do you have an ICS rom for this phone???
Cheers,
Juan Carlos
Sent from my GT-I9100 using XDA
Click to expand...
Click to collapse
Hi Juan Carlos, it's probably going to take a very long time for a Dominicana specific ICS rom. I can suggest you to use XEO_XWLP8 (what I'm using right now)
from the forums, if you feel like not waiting longer to appear.
I'm from Mexico's and my carrier is Telcel (modem UMKK1). I also had the problem of been waiting too long for Samsung/Telcel to update our devices to ICS so instead, I've managed to install without much hassle LP8. This rom is UK Unbranded and DOES include Spanish.
If you need some help in updating to ICS feel free to ask.
Saludos

Hi Boris
Thanks for everything my phone works great now .
Really appreciate it
Sent from my GT-I9100 using XDA

Problemas luego de flashear
Hola Amigos, tengo el SGS2 la cual vino con la versiones 2.3.4 Gingerbread de Orange Dominicana, flashee para instalarle una custom rom del Ice Cream Sandwich 4.03, pero luego de ahi el aparato perdio resolucion en los colores, los tonos son palidos, es decir el contraste se deterioro y no he encontrado la forma de resolverlo. Reinstale nuevamente la Rom de fabrica pero el problema persiste, estuve Googleando y he visto que varias personas han tenido el mismo problema pero nadie ha dado una solucion, tiene conocimiento de porque sucedio eso, saben de que forma resolverlo?
Gracias.

String19 said:
Hola Amigos, tengo el SGS2 la cual vino con la versiones 2.3.4 Gingerbread de Orange Dominicana, flashee para instalarle una custom rom del Ice Cream Sandwich 4.03, pero luego de ahi el aparato perdio resolucion en los colores, los tonos son palidos, es decir el contraste se deterioro y no he encontrado la forma de resolverlo. Reinstale nuevamente la Rom de fabrica pero el problema persiste, estuve Googleando y he visto que varias personas han tenido el mismo problema pero nadie ha dado una solucion, tiene conocimiento de porque sucedio eso, saben de que forma resolverlo?
Gracias.
Click to expand...
Click to collapse
Hey String,
I've read some forums that similar problems to yours were solved by flashing a stock firmware.
Get a stock ICS ROM for galaxy S2, you can find them here in the forums. Do a Factory Reset and then flash the stock rom to see if that works for you.
Hope that works...
Sent from my GT-I9100 using Tapatalk 2

I've updated the OP link.

ICS ROM
Hello.
I have installed various ROM ICS and always a haver very hight battery drain.
can you say me which ICS ROM is good as GB?
I installed ICS Resurection Remix whit default an Siyah kernel
And ICS NEAT with default and siyah kernel (NEAT is SAMSUNG STOCK with minor mods) and have hight drain and hot device.
I'm in STOCK KI2 with TEGRAK ov module for undervolt..
Thanks in Advance!!!
And sorry for my english!!

hi
dou you have the stock ics of orange y root my phone and try to install resurectionremix but y get on boot screen cant enter to any custom rom so i make a restore of my rooted copy do u know how to fix it

loco_jow said:
Boris, am going to Dominican Republic soon and i was wondering if you could make any recommendations of what should I flash to have service. I plan to go with Orange but i have a Galaxy s2 I777 de AT&T. Would something work for me or should i just bring a GSM blackberry Instead ? Thanks for your response.
Click to expand...
Click to collapse
No need to flash anything. Just take in mind, that the device need's to be unlocked, and, that Orange (Witch i personally prefer) uses BandVIII for hsdpa (900 Mhz) witch your phone doesn't support, so no 3g speed with them and your device. Claro Uses BandV for 3g (850) witch is the same as AT&T, so 3g speed are available with your device.

[BASEBAND] [RIL] Telcel CMW Modem and RIL UBELL1

ALOHA My FRIENDS This is my first CWM Flashable file so Be Gentile
(moderators i will post this in spanish and english for the benefit of the Spanish Speaking community
English: Black Font
Español: Red Font
***WARNING THERE IS A Known BUG that for some REASON PDA XXELLA
is not Very friendly with Latin american basebands and
Signal Bands so if you have ELLA PDA flash at your own risk***
**** Advertencia Existe un Bug medio chistoso con los ROMS basados en
el PDA: XXELLA que no se lleva muy bien con los modems de latino america asi que flashealo a tu propio riesgo****
This is Based by the original Idea and Flash file From /
este archivo es una modificacion e idea original de kamalmawa
This is only for the ROOTED Samsung Galaxy S3 i9300 International version
"No other Device has been tested"
*** FLASH AT YOUR OWN RISK**
Este Flashable es para el Samsung Galaxy S3 Rooteado version internacional i9300
( no se a probado en otros aparatos) flashearlo bajo tu propio riesgo
This is the BASEBAND/MODEM and RIL from the latest TELCEL ROM (UBELL6)
Este es el MODEM y el RIL Mas Actualizado de la ultima version del ROM de Telcel UBELL6
You know the drill Download the Attached Zip file,
put it on your SD Card,
Boot to CWM (or what ever version you have of Recovery Boot)
Install Zip from SD and Reboot
No need to delete Dalvik nor cache
I will be posting the Extracted Telcel CSC folder and files from that same ROM
that i have modified to have HD voice and No BLOAT ware installation
Ya saben como hacerlo Bajen el archivo adjunto
ponerlo en su tarjeta de memoria
bootear a CWM e instalar el archivo desde la tarjeta y rebooten
no hay necesidad de borrar el dalvik ni el cache
Proximamente posteare el CSC de telcel modificado para no installar programas de telcel
y que tenga AMR habilitado o VOZ HD
IF THIS HELPS YOUR SIGNAL PROBLEMS Hit the THANKS BUTTON PICALE AL DE GRACIAS si te ayude en algo

Muy bueno ,
Sent from my GT-I9300 using xda app-developers app

Working great here thanks
Sent from my GT-I9300 using xda premium

thanks for your work but why not post it in a thread that is already collecting those flashable baseband & ril zips?
for instance here or here

Can i flash in an AOSP based rom right?

chrismast said:
thanks for your work but why not post it in a thread that is already collecting those flashable baseband & ril zips?
for instance here or here
Click to expand...
Click to collapse
I had to use a Separate thread cause its a "Specific carrier that not so many Users will download so Why mixx it with all the UNIVERSAL ONES""
Besides Being the Largest Carrier in mexico it uses it specific Ril and Base band configuration / This particular Modem i am not sure it will work with Any other carrier so Why Mix it and Risk some one flashing it by mistake
And If you Search you will get NO one doing this for TELCEL MEXICO.. ok ?? GREAT

betovanbuuren said:
Can i flash in an AOSP based rom right?
Click to expand...
Click to collapse
If the Kernel you are using has no issues with STOCK MODEMS i see no Reason why it wouldn't work
basically is just the PURE MODEM.bin with (All the RIL files) from the STOCK TELCEL ROM
CHEERS me lads

fermartz said:
If the Kernel you are using has no issues with STOCK MODEMS i see no Reason why it wouldn't work
basically is just the PURE MODEM.bin with (All the RIL files) from the STOCK TELCEL ROM
CHEERS me lads
Click to expand...
Click to collapse
Of flashed with siyah kernel in Slim Rom, no issues so far. Thanks mate.

betovanbuuren said:
Of flashed with siyah kernel in Slim Rom, no issues so far. Thanks mate.
Click to expand...
Click to collapse
Your wellcome BROB

Works!
Works Great with Claro Colombia. Thanks!! :good:

So far so good installed on 4.1.2 ELLA, Philz Touch Recovery 4.35 and Perseus 30/01 Kernel, better connection, with ELLA modem it took ages to connect a call, now it is a really quick connection, keep up the good work, thanks a lot!:good:

What's the difference between what you posted and what I posted here ?
http://forum.xda-developers.com/showpost.php?p=36995376&postcount=74
I checked the MD5s they are the same RILs
Sent from my GT-I9300 using xda app-developers app

kamalmawa said:
What's the difference between what you posted and what I posted here
http://forum.xda-developers.com/showthread.php?p=36995376
I checked the MD5s they are the same RILs
Sent from my GT-I9300 using xda app-developers app
Click to expand...
Click to collapse
It may be pretty much the same, as far as I can see, but this one was extracted directly from TELCEL's ROM, so I would think it is branded for our Mexican carrier, being that just my best guess.

Alf0903 said:
It may be pretty much the same, as far as I can see, but this one was extracted directly from TELCEL's ROM, so I would think it is branded for our Mexican carrier, being that just my best guess.
Click to expand...
Click to collapse
Doesn't matter which ROM you extracted from If the MD5 is the same that means nothing changed... They don't change the RILs for specific carrier... Only for deferent modems.. In fact sometimes they use the same RILs different modems
Sent from my GT-I9300 using xda app-developers app

kamalmawa said:
If the MD5 is the same that means nothing changed.. doesn't matter which ROM you extracted from... They don't change the RILs for specific carrier... Only for deferent modems.. In fact sometimes they use the same RILs different modems
Sent from my GT-I9300 using xda app-developers app
Click to expand...
Click to collapse
So there is your answer, it is the same, which makes sense, since both modems (the one for your post, and this one) are for latinamerican carriers, the main difference would be for us final users, who do not have your technical skills, to have them compared, so it must be a feeling safe sense, to flash the modem extracted fron our carrier, that would be the final, and may be the must important difference.

kamalmawa said:
Doesn't matter which ROM you extracted from If the MD5 is the same that means nothing changed... They don't change the RILs for specific carrier... Only for deferent modems.. In fact sometimes they use the same RILs different modems
Sent from my GT-I9300 using xda app-developers app
Click to expand...
Click to collapse
actually Mr kamawala I have to disagree it can have the same RIL but the actual modem can be optimized differently for what ever the carrier needs you can see the size difference from your file and mine telcel modem . bin is much smaller in size I invite you to download it and compare them your self :thumbup:
cheerios
by the way thanks for your thread
salutations

fermartz said:
actually Mr kamawala I have to disagree it can have the same RIL but the actual modem can be optimized differently for what ever the carrier needs you can see the size difference from your file and mine telcel modem . bin is much smaller in size I invite you to download it and compare them your self :thumbup:
cheerios
by the way thanks for your thread
salutations
Click to expand...
Click to collapse
What you compared is two zip files which contains the modem.bin.. the zip file you edited just compressed bit more than what I originally posted probably due to different programs we both used.. Look at the screen shot below it's the same modem.bin file with same size, same modified date and same MD5...

Working good with Movistar - Colombia.
Thanks

Qué onda yo estoy usando últimamente omega rom v42 y desde la versión 39 he notado que mi servicio de Internet telcel estaba muy lento y que muy seguido me quedaba sin señal y realmente no sabía porque, hice wipe y volví a instalar todo y he actualizado para ver si se resolvía, pero lo, seguía igual, así que acabo de instalar este tweak y ya les contaré si noto una mejora en el servicio de Internet y señal.
Saludos
Sent from my GT-I9300 using xda premium

arcaneck said:
Qué onda yo estoy usando últimamente omega rom v42 y desde la versión 39 he notado que mi servicio de Internet telcel estaba muy lento y que muy seguido me quedaba sin señal y realmente no sabía porque, hice wipe y volví a instalar todo y he actualizado para ver si se resolvía, pero lo, seguía igual, así que acabo de instalar este tweak y ya les contaré si noto una mejora en el servicio de Internet y señal.
Saludos
Sent from my GT-I9300 using xda premium
Click to expand...
Click to collapse
Telcel sucks, that´s the only reason, in Puebla I had no more than 2mb, in Guadalajara between 1 and 1.5mb, and been using european roms for quite a while, can´t tell you now cause I´m in the US with no data plan, went for an iphone 5 and got over 12mb in 3g
what I recommend you is using any euro rom without considering the modem and keep it, and take your phone to telcel and tell them they suck

SIgnal

It's so common to get a weak signal after flashing a new ROM?
I've been using RR since a few months, I'm a G4 regular owner and AT&T user in Mexico, I didnt use my phone with stock rom enough time to say if there's a big difference between after and before.
I just did:
1- Unlock Bootloader
2- Flashed recovery
3- Flashed ROM and GApps
Do you think I failed flashing Modem or anything?
Any other user from Mexico using AT&T as provider with signal issues?

Instala stock de android 7.0 y despues instala roms, creo eso mejora lo de la señal, yo hice eso y ya no tuve problemas con la señal en las roms..... https://forum.xda-developers.com/moto-g4-plus/how-to/moto-g4-plus-xt1640-43-athene-npj25-93-t3549369

Mexickano said:
It's so common to get a weak signal after flashing a new ROM?
I've been using RR since a few months, I'm a G4 regular owner and AT&T user in Mexico, I didnt use my phone with stock rom enough time to say if there's a big difference between after and before.
I just did:
1- Unlock Bootloader
2- Flashed recovery
3- Flashed ROM and GApps
Do you think I failed flashing Modem or anything?
Any other user from Mexico using AT&T as provider with signal issues?
Click to expand...
Click to collapse
If you have never flashed a modem to your device it is better to leave it this way. All modems you can find are leaked ones.

Danielikto said:
Instala stock de android 7.0 y despues instala roms, creo eso mejora lo de la señal, yo hice eso y ya no tuve problemas con la señal en las roms..... https://forum.xda-developers.com/moto-g4-plus/how-to/moto-g4-plus-xt1640-43-athene-npj25-93-t3549369
Click to expand...
Click to collapse
what happen if I'm already in 7.1.1?
Just downgrade to stock and after that upgrade again?
There are no any issue doing that?
@Droidphilev Thank you for the advice, I'll not do that then.