Hi All,
As all we know the WCDMA 800/850/900/1900/2100 Mhz is only a mirage, because we all know that the in example the JIAYU G4T is supporting ONLY WCDMA-IMT-2000 (which is the WCDMA 2100Mhz).
OK from my experience so far, I have flashed so many modem.img files, from TCL Idol X (S950), TCL Hero N3 and ChangHong Z9(HonPhone W33) and with no success, I'm only killing my reception because I SUPPOSE that the build of this stupit modem.img file is different or the JIAYU G4 BandMode is somekind of hardware locked only on WCDMA 2100, BUT WHY ???? Is there any posibility to unlock the WCDMA-GSM-900 Mhz, it is natively supported by the MT6589T and how the rest of the Manufacturers are able to implement it and to make it working ?
You'll ask your self, "why this guy is still trying by killing his phone so many times", well the answer is very simple, because I belive that there are no imposible things in the world and because I know how to recover my IMEIs and so on and I have even tried with the ChangHong Z9(HonPhone W33) Modem Database and AP Database and guess ... I was able to recover the IMEI and even I've used a real ChangHong Z9 IMEI and I was able to write it on my JIAYU G4T BUT ....
AGAIN with no success, there were no reception at all and I was having IMEIs and YES in the Engineer Mode in the Band Mode section there were only WCDMA-GSM-900 and WCDMA-IMT-2000 marked but there was NO reception again !!!
and that's why I'm begging you to tell me how to edit the modem.img file, because I was unable to uncompress it anyhow (tried ext4_unpacker_exe but without success, it's unpacking only mediatek factory rom ".img" files)
You'll ask why I want to edit and to try to create custom modem.img to support WCDMA-GSM-900Mhz, because those idiots from JIAYU and not only them, are going to release their MTK6592 and even the other upcoming 6595 with only WCDMA 2100Mhz support and that's very STUPID !!! And at all JIAYU have a great design !!!
Only in Europe there are 45 x Mobile Carriers with WCDMA(UMTS) 900/2100 Mhz builded networks (Including big mobile carriers like O2 in UK) and all of us which are using JIAYU or THL or even almost all of the rest chinesse clones or other manufacturers MTK based phones, we all are going to suffer if we are in such area which is WCDMA 900 coverage available only.'
I'll give you an example which is very clean example for good marketing: TCL
they have 4-5 different Idol X S950 modem.img files for their 4-5 different versions of the Idol X S950 model !!! YES I was able to check that fact by accidentally founding the source codes of the 4-5 different region specific TCL Idol X S950 phone and after that I was able to read that for every region there is different modem.img which is region specific in the needs of the customers mobile carriers.
You'll ask me "Why don't you buy Idol X" because the JIAYU is smaller it fits in my hand better, that's why and because I like the design more and because have an OTA updatable MIUI V5 on it which is working flawlessly, that's why.
Also why I'm going to buy the next MTK6592 based JIAYU S2, because it have even better design (139mm x 67.5mm x 6mm) than the Idol X+ S960T (140.4 x 69.1 x 7.9 mm), but again it will strugles in WCDMA 900 Mhz that's why I beg all of you developers to help me to figure how to redifine the modem.img to be custom configured by our needs ?
Thanks in advance and sorry for the long post
:fingers-crossed:
cpurage said:
Hi All,
As all we know the WCDMA 800/850/900/1900/2100 Mhz is only a mirage, because we all know that the in example the JIAYU G4T is supporting ONLY WCDMA-IMT-2000 (which is the WCDMA 2100Mhz).
OK from my experience so far, I have flashed so many modem.img files, from TCL Idol X (S950), TCL Hero N3 and ChangHong Z9(HonPhone W33) and with no success, I'm only killing my reception because I SUPPOSE that the build of this stupit modem.img file is different or the JIAYU G4 BandMode is somekind of hardware locked only on WCDMA 2100, BUT WHY ???? Is there any posibility to unlock the WCDMA-GSM-900 Mhz, it is natively supported by the MT6589T and how the rest of the Manufacturers are able to implement it and to make it working ?
You'll ask your self, "why this guy is still trying by killing his phone so many times", well the answer is very simple, because I belive that there are no imposible things in the world and because I know how to recover my IMEIs and so on and I have even tried with the ChangHong Z9(HonPhone W33) Modem Database and AP Database and guess ... I was able to recover the IMEI and even I've used a real ChangHong Z9 IMEI and I was able to write it on my JIAYU G4T BUT ....
AGAIN with no success, there were no reception at all and I was having IMEIs and YES in the Engineer Mode in the Band Mode section there were only WCDMA-GSM-900 and WCDMA-IMT-2000 marked but there was NO reception again !!!
and that's why I'm begging you to tell me how to edit the modem.img file, because I was unable to uncompress it anyhow (tried ext4_unpacker_exe but without success, it's unpacking only mediatek factory rom ".img" files)
You'll ask why I want to edit and to try to create custom modem.img to support WCDMA-GSM-900Mhz, because those idiots from JIAYU and not only them, are going to release their MTK6592 and even the other upcoming 6595 with only WCDMA 2100Mhz support and that's very STUPID !!! And at all JIAYU have a great design !!!
Only in Europe there are 45 x Mobile Carriers with WCDMA(UMTS) 900/2100 Mhz builded networks (Including big mobile carriers like O2 in UK) and all of us which are using JIAYU or THL or even almost all of the rest chinesse clones or other manufacturers MTK based phones, we all are going to suffer if we are in such area which is WCDMA 900 coverage available only.'
I'll give you an example which is very clean example for good marketing: TCL
they have 4-5 different Idol X S950 modem.img files for their 4-5 different versions of the Idol X S950 model !!! YES I was able to check that fact by accidentally founding the source codes of the 4-5 different region specific TCL Idol X S950 phone and after that I was able to read that for every region there is different modem.img which is region specific in the needs of the customers mobile carriers.
You'll ask me "Why don't you buy Idol X" because the JIAYU is smaller it fits in my hand better, that's why and because I like the design more and because have an OTA updatable MIUI V5 on it which is working flawlessly, that's why.
Also why I'm going to buy the next MTK6592 based JIAYU S2, because it have even better design (139mm x 67.5mm x 6mm) than the Idol X+ S960T (140.4 x 69.1 x 7.9 mm), but again it will strugles in WCDMA 900 Mhz that's why I beg all of you developers to help me to figure how to redifine the modem.img to be custom configured by our needs ?
Thanks in advance and sorry for the long post
:fingers-crossed:
Click to expand...
Click to collapse
OK there is no need to answer to my question, because I've been answered already:
by javum
Hi!
Except CPU there is another parts in the radio scheme (antenna, converters, etc). So you can't use another band mode frequency if it is not supported in hardware.
Lenovo produces the same devices for China and Europe. The system firmware (ROM) is fully compatible with both versions, but European versions has 900MHz 3G and Chinese version doesn't. If people flashes modem software from european to chinese devices - the can see 900MHz 3G in Engineer mode, but it don't work...
So I say "no" for whole you question. You can't make it supported...
:crying:
but the hope dies last:
http://www.gizchina.com/2014/02/22/jiayu-s2-receives-network-license/
hope that this sexy baby will have international versions of itself !!!
I am having similar problem.....
cpurage said:
Hi All,
As all we know the WCDMA 800/850/900/1900/2100 Mhz is only a mirage, because we all know that the in example the JIAYU G4T is supporting ONLY WCDMA-IMT-2000 (which is the WCDMA 2100Mhz)..........
:
Click to expand...
Click to collapse
Here's my problem....
I have a Blu Life One M phone. It's a rebadged and "Americanized" Micromax Magnus A117. So I can flash roms for the A117 and they work great, except for the data modem. My phone supports HSDPA+ 42Mbps band (850,1700,1900 UMTS). Problem is that the India version of the phone A117 only can support GSM band (850,900,1800,1900). SO, If I have the Blu roms flashed...I get a HSDPA (about half that high speed listed though but a big improvement). With any of the India roms (inc, Cyanogen and such) I can only get GSM band. Sloooow. The engineering menu shows choices to tick the boxes to include the other freqs I want...but they are grayed out.
So, to have all the nifty cool rom stuff, I have to go WiFi only. To go plain Jane gives me the high data speed.
Any way to get those choices un-grayed....or do I have the Rosetta stone of making these changes...or go back to stock and dream ???
Thanks for any info.....
BTw.. It is a MTK 6589t SoC.
Jeff
I have the same problem
blu-madmax said:
Here's my problem....
I have a Blu Life One M phone. It's a rebadged and "Americanized" Micromax Magnus A117. So I can flash roms for the A117 and they work great, except for the data modem. My phone supports HSDPA+ 42Mbps band (850,1700,1900 UMTS). Problem is that the India version of the phone A117 only can support GSM band (850,900,1800,1900). SO, If I have the Blu roms flashed...I get a HSDPA (about half that high speed listed though but a big improvement). With any of the India roms (inc, Cyanogen and such) I can only get GSM band. Sloooow. The engineering menu shows choices to tick the boxes to include the other freqs I want...but they are grayed out.
So, to have all the nifty cool rom stuff, I have to go WiFi only. To go plain Jane gives me the high data speed.
Any way to get those choices un-grayed....or do I have the Rosetta stone of making these changes...or go back to stock and dream ???
Thanks for any info.....
BTw.. It is a MTK 6589t SoC.
Jeff
Click to expand...
Click to collapse
Hi team, when I install stock ROM Cloudfone Excite Prime only support WCDMA IMT 2000, in my country 3G not connect.
When I flash BLU LIFE XL stock ROM I got this basebands 3G enable (WCDMA-PCS-1900, WCMD-AWS- 1700, WCDMA-CLR-650)
The cuestion is how can I change the baseband, what is the file than I change?
Please help me, thanks
Hello Friends,
Currently I m in need of QCN file for N915P (Sprint).
having issues with signal and sometimes searching for network on gsm networks.
please help
Bump, if anyone has a QCN available it would sure be appreciated.
##786# with spc will reset the device back to full stock settings including modem. you will need to reunlock but that will be all
84791 said:
htt ps://cloud. mail.ru/public/ 4gWg/JtGK9NDqS
here Samsung SM-N915p_QCN_EFS_SEC_NVM_PIT
(remove 3 space)
Click to expand...
Click to collapse
thanks for the great help ..... will test it tomorrow when i get back to work.
hey people, after installing the ROM on my hisense u971 my sim card does not work on 3G, only'm from Brazil and I installed rom is the of Europe will be that this is the problem? the frequency here 3g 1900 / 2100MHz, and hisense international site was to function as described .. Dual Mode Dual Standby, WCDMA B8: 900 / B1: 2100MHz, GSM B8: 900 / B3: 1800 / B2: 1900MHz ...
Has anyone ever experienced this? it is as if with bad contact, but the change to the mode only 2g it works ..
you guys wait staff !!:fingers-crossed:
try the other sim, if it works, i think the problem is in your SIM.. if it's not work, try to factory reset it.. hope that will help
superinventions said:
try the other sim, if it works, i think the problem is in your SIM.. if it's not work, try to factory reset it.. hope that will help
Click to expand...
Click to collapse
then friend, already switched sim from another operator and still the same problem. also my sim in another cell works what a beauty ... but give flasher another Chinese rom that worked to 3G + and appeared the same mistake,: Eek: only it was the fastboot method and the previous method by QPST, so I'm thinking that problem was in the brick and recovery ... I will try and recover brick again but now with the sim card inside ... but if anyone has more ideas to help thank you !!:dedos cruzados:
Hello I found video on you tube unlocking of more 4g band 800mhz for better 4g network
But I am confused with it
Like my question are
1. Does it safe?
2.advantages and disadvantages of unlock band?
3. Can i revert back to original band setting ?
4.after this trick my both sim work ?
5. Did you try or using this methods and how log?
I am using redmi note 3 snapdragons India 32gb
Plz answer my question
It will very help full
Thanks in advance
And I will not forget to hit thanks button of answers :silly:
Not posible for now... Or at least we don't know how-to yet...
Regards!
create original efs backup
change band to 40
backup band 40 efs
.now you have both efs backup.....restore what you need
I changed my lte band to lock to only band 40(2300) using qpst n qxdm.it worked
but now when I try to go back to the default settings it's not working
first I tried the value 0
then the values of the band's I need using lte band calculator
when I reboot there is no signal
then installed fresh rom using twrp.but after booting it has only 2300 band
u guys know any other way to get default lte bands
Or
Someone give me redmi note 3 latest kenzo global developer rom efs backup
Common guys anybody
I just need copy of efs from note 3
get it from your friend.
jeelanitks said:
I changed my lte band to lock to only band 40(2300) using qpst n qxdm.it worked
but now when I try to go back to the default settings it's not working
first I tried the value 0
then the values of the band's I need using lte band calculator
when I reboot there is no signal
then installed fresh rom using twrp.but after booting it has only 2300 band
u guys know any other way to get default lte bands
Or
Someone give me redmi note 3 latest kenzo global developer rom efs backup
Click to expand...
Click to collapse
Hello, same problem here. Didn't do a backup. Try to restore it by getting full folder of twrp backup from your friend. Because it contains imei/mac information, nobody will give you its backup on the Internet. Try to get it from your friend. Flashing the full rom doesn't fix this either.