[Q] Flashing Gingerbread with Froyo MODEM ROMs - Galaxy Ace S5830 General

Hello, i live in Argentina and here UMTS/3G networks use the 850 Mhz band, as you know this is different to the 3G bands in use in Europe/Asia/Brasil, So far i haven't seen any GingerBread ROMs for the Galaxy Ace that use that Band.
I was wondering if using ODIN i could flash BOOT/PDA/CSC and leave the old Froyo MODEM ROM installed.

There is a brazilian modem working on your band, 850 mhz. Look this post
http://forum.xda-developers.com/showthread.php?t=1145596

yoyigo07 said:
There is a brazilian modem working on your band, 850 mhz. Look this post
http://forum.xda-developers.com/showthread.php?t=1145596
Click to expand...
Click to collapse
Nope, that won't work, Brazil uses the 2100 Mhz band,
I've already tried that ROM with no luck, had to return my phone.

elfarto said:
Nope, that won't work, Brazil uses the 2100 Mhz band,
I've already tried that ROM with no luck, had to return my phone.
Click to expand...
Click to collapse
Believe me, that works on 850 mhz frecuency. Mexician users had no problem with telcel in that band

Related

[Q] Flashing modem help

I need to flash a 850/2100 mhz modem to my phone but not too sure how to do it, my phone is rooted etc but need to know how to change band frequency. I am currently running cyanmod 7.2
any help much appreciated
reply
crispychickennz said:
I need to flash a 850/2100 mhz modem to my phone but not too sure how to do it, my phone is rooted etc but need to know how to change band frequency. I am currently running cyanmod 7.2
any help much appreciated
Click to expand...
Click to collapse
read it please
reply
I basically need a 850/2100 mhz modem for my huawei ideos x1 phone on cyanmod 7.2

[Q] RM-801 FW on RM-819

I have both a RM-801 and a RM-819, I just flashed 7.8 to my 801 with NaviFirm and the NCS. I was wondering if it was possible to use the 801 FW on the 819, as I don't see the 7.8 FW for the 819.
If this has already been asked and answered, please point me to the thread. I saw something about using 819 FW on a 801, but not vice versa.
Thanks!!
yes you can flash if rm is different but phone models are same
Thanks!
Sent from my SPH-L900 using Tapatalk 2
Dont know if roms all also band related..
Nokia Lumia 800 variants
RM-801 / 800 - Global - GSM 850/900/1800/1900 MHz, WCDMA (3G) Band I (2100), Band II (1900), Band VIII (900)
RM-819 / 800.1 - US - GSM 850/900/1800/1900 MHz, WCDMA (3G) Band I (2100), Band II (1900), Band V (850)
Well if it doesnt work just flash the original fw back.
Works. Already got like that and no problems with 3g or signal... so, go ahead and flash it!
My GF has a 801-819 from US, which ROM on navifirm is the generic, unbranded one?

[Q] Best Modem/2100mhz/3g for ace s5830i

hi,
What is the name of the best modem for operate in 2100 mhz ace in model s5830i?
I just can not see 3g or H in signal,only 2g. I changed several times the modem and i dont had sucess.
I live in Africa - Angola and my Operator is Unitel(2100mhz)
what??? state clearly
Rahul4Ace said:
what??? state clearly
Click to expand...
Click to collapse
I want to change the modem from my ace s5830i but I need to find one that works at 2100 MHz.

[Q] Omate TrueSmart change baseband freq ?

Hallo, I bouth by mistake a 1900mhz TrueSmart and cant use 3g here in EU, so I was thinking maybe I can change the baseband freq to 2100mhz. I did abit of research and it seems that the MT6572/MT6166 is capable of running in both the 1900mhz and 2100mhz 3G-FDD baseband freq, but is it controlled by the firmware or does it use different pin's on the SoC, and if so can I rewire the pin's and the use the 2100mhz firmware ?
Hope someone can help me with this, thanks
Viperdk81
I dunno if this helps but a while back i had mt6589 phone with tri band GSM and single band HSDPA, but then I changed the modem files in /system/etc/firmware (modem_***.img) and when I checked in Engineer Mode it changed into quad band GSM and Dual band HSDPA (like phone which modem file i pulled)...
It have more stable network signal and connection
I think flashing 2100MHz firmware is also works :good:
Maszter93 said:
I dunno if this helps but a while back i had mt6589 phone with tri band GSM and single band HSDPA, but then I changed the modem files in /system/etc/firmware (modem_***.img) and when I checked in Engineer Mode it changed into quad band GSM and Dual band HSDPA (like phone which modem file i pulled)...
It have more stable network signal and connection
I think flashing 2100MHz firmware is also works :good:
Click to expand...
Click to collapse
Hello could you help me with finding and flashing modem firmware - I have Callisto 300 (same specs as Omate's Truesmart, running omate KK now) I don't get 3g in US and in engineering mode it shows Euro, Japan and Aus and Aus1 - I'm assuming this is 2100 mhz watch and I need 1900 baseband in order to get 3g with at&t.
Thanks a lot
Change from 2100 to 1900?
I too would like to know if it's possible to change the modem frequency, but I have the EU version, but am in the US with AT&T. Is it possible to change to 1900mhz so I can have 3G?
Baseband Changed
Hi, I finally got 3g 2100 mhz on my 1900mhz
I flashed the 4.4 rom from http://forum.xda-developers.com/omate-truesmart/development/rom-omate-truesmart-ironman-firmware-t2998434
and Baseband file from https://drive.google.com/folderview?id=0Bz7sBdJpIWEgRm5MYnhEQmlTNDA&usp=drive_web&tid=0Bz7sBdJpIWEgOWoxNEVXWkZKbkk
then followed guide from gerhardo.
adb shell mount -o remount,rw /system
adb push .\1900Baseband\modem_1_wg_n.img /system/etc/firmware/modem_1_wg_n.img
adb shell chmod 644 system/etc/firmware/modem_1_wg_n.img
adb reboot
Viperdk81 said:
Hi, I finally got 3g 2100 mhz on my 1900mhz
I flashed the 4.4 rom from http://forum.xda-developers.com/omate-truesmart/development/rom-omate-truesmart-ironman-firmware-t2998434
and Baseband file from https://drive.google.com/folderview?id=0Bz7sBdJpIWEgRm5MYnhEQmlTNDA&usp=drive_web&tid=0Bz7sBdJpIWEgOWoxNEVXWkZKbkk
then followed guide from gerhardo.
adb shell mount -o remount,rw /system
adb push .\1900Baseband\modem_1_wg_n.img /system/etc/firmware/modem_1_wg_n.img
adb shell chmod 644 system/etc/firmware/modem_1_wg_n.img
adb reboot
Click to expand...
Click to collapse
not work for me
Change Baseband from 1900Mhz to 2100Mhz.
I have refleshed from my stock rom 1gb/8gb 1900Mhz to stock rom 2100Mhz (from needrom). 3g works fine now with 2100Mhz.
Fifine W9 1900->2100 3g?
miki1g said:
I have refleshed from my stock rom 1gb/8gb 1900Mhz to stock rom 2100Mhz (from needrom). 3g works fine now with 2100Mhz.
Click to expand...
Click to collapse
I need the inverse. Do any of you still have your original 1900 Mhz baseband files for Kitkat 4.4.2? The google drive link in the post above is dead.

[HELP] Unlock bands in Boost Mobile

Hello, i bought this phone like 2 weeks ago.
I unlock the bootloader, change the ROM (Stock to OTA), change the Kernel (Believe Kernel) and then try to add the bands. Also i have a nandroid backup of the original stock rom
I try this first:
http://forum.xda-developers.com/moto-e-2015/general/how-to-verizon-moto-e-2015-gsm-network-t3098953
Click to expand...
Click to collapse
But it doesn't work, also i can only select LTE (4G) option
After read this threads:
http://forum.xda-developers.com/cro...ad-progress-please-leave-im-updating-t2871269
http://forum.xda-developers.com/galaxy-s5/general/how-to-add-rf-lte-frequency-bands-to-t2886059
Click to expand...
Click to collapse
I try to access the modem but i can't, i got stuck on step 6 and can't install the modem driver to modify with the QPST. Can someone help how to do it? The bands of my country are
2G: 850, 1800 MHz
3G: 850, 1800, 2100 MHz
4G(LTE): 1800, 2600 MHz
Thanks for your help!
I reach the modem driver but now, after putting the bands the phone start booplooping, if i use the Factory Mode function the phones works except for the network, can someone please help me?
I found a solution, do the first link after change the bands

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