Hi.
My problem is this, I have a G900F and I want to change to a stock rom G900M, for the model that I have does not have the band 4 and the firmware of another if, try switching using Odin, but it generates an error, how can I do this ?
Thanks for your help.
Loperaco said:
I have a G900F and I want to change to a stock rom G900M, for the model that I have does not have the band 4 and the firmware of another if, try switching using Odin, but it generates an error, how can I do this ?.
Click to expand...
Click to collapse
If only it was that easy. No, you can't do that. At least not that way.
The primary reason that Samsung has a dozen and a half variant models is to deter grey market sales and block exactly what you wish to do. To do this you need to rewrite some non-volatile registers. LTE band 4 is more commonly known an AWS and it is the only band to be successfully added, AFAIK. At least to the S3, S4, N3, et al. I'm not sure if anyone has confirmed it on the S5 to date or not.
A proper search will confirm that for you. The change is made with the QPST program and written to NV, usually through a .qcn write or NV edit upon boot. You have lots of keywords to search on, so do a search and you'll find all of the details.
.
Hi fffft.
OK, I've read what you've written me a couple of times, however I can not understand you very well, since this is my first Android, you mind if I ask you a step by step explanation?
Thank you.
Loperaco said:
Hi fffft.
OK, I've read what you've written me a couple of times, however I can not understand you very well, since this is my first Android, you mind if I ask you a step by step explanation?
Thank you.
Click to expand...
Click to collapse
I was researching as you suggested and found this http://forum.xda-developers.com/showthread.php?t=2291589 , however .qcn the file does not match my model, I tried to look on the web and can not find it, any ideas?
Hello,
I received my Oneplus 2 today and it does not support the LTE Band 3. It`s the north USA Version and i would like to ask if anyone figured out a method to unlock the LTE Band 3 (1800mhz) . It`s because the Hardware of the Oneplus USA Version is the same like the European version.
best ragards
That would be amazing if some one could figure that out. But as I did my research it seems that it's not possible that there's a hardware difference.
shlomi_vanono20 said:
Hello,
I received my Oneplus 2 today and it does not support the LTE Band 3. It`s the north USA Version and i would like to ask if anyone figured out a method to unlock the LTE Band 3 (1800mhz) . It`s because the Hardware of the Oneplus USA Version is the same like the European version.
best ragards
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Click to collapse
Should be the same procedure as the HTC M9 since they're the same processor. And for the prep work (drivers and enabling the modem diag mode) as in this thread for the OnePlus One.
TheManDroid said:
Should be the same procedure as the HTC M9 since they're the same processor. And for the prep work (drivers and enabling the modem diag mode) as in this thread for the OnePlus One.
Click to expand...
Click to collapse
Do the changes to the band stay after rebooting or upgrading the OS to a newer version? I wanted to unlock band 3 as well on my OP2.
I haven't tried writing the modem configuration yet to see if it sticks or not but was able connect the phone and read the configuration from it by following the instructions from the 2 posts I mentioned.
Say if you got Chinese oneplus 2 and changed software on it would it work on bands 20 I've seen this question asked before but can't find the post
Sent from my LG-H815 using XDA Free mobile app
anyone found a way to unlock band 3?
Have a look at this post
I suggest you to keep 3G instead of LTE because battery draining is so faster under LTE Mode. If you stay a place that have a poor LTE signal,that would be your battery killer.
acidreian said:
That would be amazing if some one could figure that out. But as I did my research it seems that it's not possible that there's a hardware difference.
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Click to collapse
Hi, this research includes some whitepaper research?, Does it actually has different hardware?, just wondering if someone knows this by solid proof?
To know if there is hope for us (Buyers of wrong OP2 version )
I'm using A2005 usa model in India and I'm unable to use it on Airtel 4G in India. When I spoke to the OnePlus customer service they said it will need to replace the motherboard as it's a Hardware issue. I'm waiting for the motherboard to arrive from china as they don't have it yet in India. So basically it's a Hardware issue on oneplus 2 unlike it's ancestors.
rahulrai said:
I'm using A2005 usa model in India and I'm unable to use it on Airtel 4G in India. When I spoke to the OnePlus customer service they said it will need to replace the motherboard as it's a Hardware issue. I'm waiting for the motherboard to arrive from china as they don't have it yet in India. So basically it's a Hardware issue on oneplus 2 unlike it's ancestors.
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Click to collapse
They will do it for free? Or what is the charge?
Ok, guys, I`ve unlock NVram to write. Now I can save any values to change enabled bands.
Intruction:
Requirements:
OnePlus 2 with TWRP and rooted.
QXDM Pro, drivers, etc, as described here http://forum.xda-developers.com/oneplus-one/general/guide-unlock-aditional-bands-qualcomm-t2877031
Stock ROM OnePlus2Oxygen_14_OTA_011_all_1512111634.zip.
Attached file.
Just unzip attachment and replace file in ROM OnePlus2Oxygen_14_OTA_011_all_1512111634.zip, in RADIO folder. Flash via twrp.
After boot you will see warning "NV backup corrupted" or something like this, dont worry.
Use QXDM to change band as you want, reboot and check. Voilya. But LTE will not work, because it is hardware issue, lol.
A few words about attached file. I just unzip this file from stock ROM, search AC 1Ah (6828 little endian) and DB 08 (56072, US LTE band) together and replace DB 08 with DF 10. Dont ask, what I did, I dont know, lol. But it is work.
Implex said:
Ok, guys, I`ve unlock NVram to write. Now I can save any values to change enabled bands.
Intruction:
Requirements:
OnePlus 2 with TWRP and rooted.
QXDM Pro, drivers, etc, as described here http://forum.xda-developers.com/oneplus-one/general/guide-unlock-aditional-bands-qualcomm-t2877031
Stock ROM OnePlus2Oxygen_14_OTA_011_all_1512111634.zip.
Attached file.
Just unzip attachment and replace file in ROM OnePlus2Oxygen_14_OTA_011_all_1512111634.zip, in RADIO folder. Flash via twrp.
After boot you will see warning "NV backup corrupted" or something like this, dont worry.
Use QXDM to change band as you want, reboot and check. Voilya. But LTE will not work, because it is hardware issue, lol.
A few words about attached file. I just unzip this file from stock ROM, search AC 1Ah (6828 little endian) and DB 08 (56072, US LTE band) together and replace DB 08 with DF 10. Dont ask, what I did, I dont know, lol. But it is work.
Click to expand...
Click to collapse
There is easier way to do that without corrupting the backup.
Simply change the value is QXDM.
Then in the phone dial *#268#
Press the NV parameters
Press the Static NV Force Backup.
This will copy the new values to the backup, and they will stick later on.
BTW, to be on the safe side, make sure to backup your dycnvbk, stanvbk and EFS.
Not working for me. Cause com.android.phone crash after dial. May be because my backup is corrupted. Later will try with stock backup. But thank you anyway.
I am using the stock image with the stock phone app.
I am using Mokee, chinese AOSP firmware. BTW, I just erased nv backup partition and keep playing with nv ram. Hope will not brick my phone ))
What version do you have? US/EU/CH?
In case you have EU, cab you PM me with qcn of your device?
Unfortunatelly I have US version.
I know a way to add bands in snapdragon 801 (i did in xiaomi mi note) never tried in OPT since it has all bands i need . but it should be the same. Search google for adding bands in mi note
Hi all!
I've been gifted a 900F to replace my S3.
Went ahead and made all the changes to realize that it does not support Band 4 AWS, therefore I'm stuck on mostly 2g.
I've found a manual on how to unlock all bands on the 900F but it was written in 2014 and I'm not sure is valid any longer.
I've managed to root the phone, install CM 13 but I cannot access the hidden menu to activate the Diagnostic mode on USB.
Cianogen does not have any hidden menu option so I don't know how to be able to wite the NV values accordingly.
Has anoyne managed to follow the instructions recently? Should I change the ROM to something else?
Ar there any new prottections that make following the guide impossible this days?
I've found a user that posted on the forum not long ago having a similar proglem but there are no replys.
Link: http://forum.xda-developers.com/har...-mode-cm13-t3405436/post67474437#post67474437
Thanks in advance.
Hi, guys and girls.
I'm working on unlock LTE Bands for Xiaomi Mi5 and Qiku Ultimate. And I need some nvram items from axon 7. These phones have similar hardware. Can somebody give me full QCN Backup from axon 7 (a2017g), please?
RBSonic said:
Hi, guys and girls.
I'm working on unlock LTE Bands for Xiaomi Mi5 and Qiku Ultimate. And I need some nvram items from axon 7. These phones have similar hardware. Can somebody give me full QCN Backup from axon 7 (a2017g), please?
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Click to collapse
did you get the QCN file? could you share it?
I also have a ZTE AXON 7 A2017 CHINA
@RBSonic: I would be glad to cooperate, but I will need to know a few things:
1. What software is needed to make the backup
2. Instructions on how to make the backup with said software
3. Assurance that the backup I'm providing won't contain personal info like legal name, phone#, IMEI/EFS, etc.
I too am interested in unlocking LTE bands for the Axon 7. I have an A2017U, not G. But any info I provide might still be of use.
Thanks!
AnonVendetta said:
@RBSonic: I would be glad to cooperate, but I will need to know a few things:
1. What software is needed to make the backup
2. Instructions on how to make the backup with said software
3. Assurance that the backup I'm providing won't contain personal info like legal name, phone#, IMEI/EFS, etc.
I too am interested in unlocking LTE bands for the Axon 7. I have an A2017U, not G. But any info I provide might still be of use.
Thanks!
Click to expand...
Click to collapse
1. You need QPST and QXDM software.
2. There are many instructions in Internet. You find it easy.
3. Yes, there is personal info in qpst backup (IMEI, may be phone nummber, but no name). It must be delete, before you post this information.
May be it can help other users, but now I have not time to work with Band unlocking. May be later. Sorry.
Hi,
I wanted to give my international n910f to my granmda in turkey, the problem is that currently the turkey takes huge fees to use german phones in their country permanently, I heard there is a Method whith which I can change the Imei of the phone to an existing old phone from turkey, I Know I have to edit the qcn file and for that I need qpst, but Qpst does not find my phone.
Is there any alternative method for that maybe someone here can help me I would be really glad.
Can no one help me with this?
I also need to edit / restore my IMEI number in SM-N910c variant
After flashing a Custom ROM the singnals are gone I can't make calls
I've read and followed many things but no luck still
There are few computer software like Octaplus Box and Samsung Pro Tools etc...
Can someone guide me how to edit IMEI number using these programs?