Unlock all bands of your Qualcomm device! Use your phone globally! No bs!

[palmbeach05]

Why we, the XDA developers, that i have been using since my first LG, back in 2010, have surrender in this matter ? I remember i had only 17 when i first started visiting XDA, a whole new world. Why do we surrender finding ways to enable all bands at smartphones ?

Actually i think its more along the lines of why do we old schoolers still get out for the daily grind but the noob generation wants all the answers without putting in the grunt work. The tools are here at our disposal, but no one is wanting to get off their butt and do work. I don't mind helping out, but if i don't have {insert random device here}, i can't give feedback.

 

[x2bc4]

I guess in part it's because of manufacturers enforcing restrictions on recent devices and the lack of information on how to circumvent those restrictions. They started to take a lot of measures to avoid people modifying their phones.

 

[simpatiseur]

Qualcomm's proprietary USB diagnostic

 

[simpatiseur]

Well, bands are hardware/software combination. If your mobile phone doesn't have the necessary hardware to work with certain band, it won't work if the band is enable in the NV.

What bands are you trying to activate and what are your device original values?

Hello guy please a need yours help
I have a SMG note 3 (n9006) this model is from china and have 2 LTE bands (band 4 and 13) but these bands are not available in my country so I can't pick up 4G with this phone! So I want to ask you if there is a tweak or flashable file which can permit me to have LTE band of Samsung n9005 ( band 3 or band 20)because these bands work perfectly in my country

I try ti edit nv but i faild can you help me
I tried to edit nv but i faild

 

[palmbeach05]

Hello guy please a need yours help
I have a SMG note 3 (n9006) this model is from china and have 2 LTE bands (band 4 and 13) but these bands are not available in my country so I can't pick up 4G with this phone! So I want to ask you if there is a tweak or flashable file which can permit me to have LTE band of Samsung n9005 ( band 3 or band 20)because these bands work perfectly in my country

I try ti edit nv but i faild can you help me
I tried to edit nv but i faild

You can always find the firmware from another country that has the note 3 working on those bands and flash that modem to your device. I haven't messed with the method in this thread since 2015, so idk how it works now

 

[Rvrjei]

If i do this, can i get my device GSM Network Unlocked? I mean, use it in another carrier?

 

[palmbeach05]

If i do this, can i get my device GSM Network Unlocked? I mean, use it in another carrier?

Unlock bands and test with a sim from the desired carrier prior to purchasing a plan. Best advice.

 

[dennis5pia]

If i do this, can i get my device GSM Network Unlocked? I mean, use it in another carrier?

No. It doesn't unlock sim card, but bands.

 

[erclalle]

Quick question, just modified some of the NV memory on a dual sim phone (Xiaomi MI5S) , and in result my first sim does not work anymore (found out almost a year later when trying out two sims at once).
Stupidly enough cannot find the backup I made before editing.
Trying to figure out if this is reversible damage or hardware damage: I've tried flashing stock firmware, stock rom, but the issue didn't change: Sim 1 has an IMEI in the settings, but no other sim info can be seen.
However, does this actually change the NV configuration, or is this memory only editable using QXDM, and is otherwise factory-set/not affected by firmware/rom installs?

---------- Post added at 11:50 PM ---------- Previous post was at 11:50 PM ----------

Quick question, just modified some of the NV memory on a dual sim phone (Xiaomi MI5S) , and in result my first sim does not work anymore (found out almost a year later when trying out two sims at once).
Stupidly enough cannot find the backup I made before editing.
Trying to figure out if this is reversible damage or hardware damage: I've tried flashing stock firmware, stock rom, but the issue didn't change: Sim 1 has an IMEI in the settings, but no other sim info can be seen.
However, does this actually change the NV configuration, or is this memory only editable using QXDM, and is otherwise factory-set/not affected by firmware/rom installs?

 

[tonyM_75]

Hello everyone,

I want to activate LTE900MHz (Band-8) on Sony LT25i (Qualcomm MSM8960). This LTE-band isn't found in standard configuration. But Band-8 is found in standard configuration for GSM and WCDMA.
I have TEMS-phone of this model (Android.4.0.4, ver.9.0.1.D.0.10-TEMS).
The phone was rooted successfully by towelroot, installed SuperSU. Qualcomm drivers installed: in Diag-Mode LT25i detects as several USB-devices (diag, modem, serial, adb) with VID_0FCE&PID_5146, and drivers found at LT18i-driver pack.
Diag-port (USB-dev=VID_0FCE&PID_5146&MI_04) activated:
adb shell
su
setprop persist.usb.eng 1

But QPST can't find any phone behind diag-port. I tried everiting, but without success: port is open/visible, but no active phone at this port.

I don't know what is the problem with diag-port:
- drivers
- forbidden access to modem at TEMS-firmware

With modem, found as USB-dev=VID_0FCE&PID_5146&MI_02, no problem with communication (WindowsDeviceManager->ModemProperties->Diagnostics->QueryModem).

I don't have standard LT25i to check.
I checked on standard LT18i (ArcS) and standard D2303 (M2)- they are visible by QPST through diag-port (NV-memory is accessed).

Do you have experience on this topic ? Any ideas/help how to access NV-memory in order to change LTE bands ?

Regards,

 

[tonyM_75]

I just found, that probably the process "tems-server" intercepts the DIAG port.
When I kill the process "/system/bin/tems-server", it appears again with new PID.
Attached you can find this file (and some other files from /system/bin/, which I found useful).
Also the root processes and listing of /system/bin/.

What you can suggest as next step?

 

[tonyM_75]

I get the same info from my stock Xperia M2 (D2303, MSM8926)- see attachment.

And I think that immortal process "tems-server" is a kernel-one.
If it couldn't be stopped, may be I have to flash stock kernel in order to have DIAG-port working. What do you think?

 

[Tokyo2710]

hello everyone I would like to know if some of you have tried this method on HTC Desire 626 (my phone is the at & t version) and if it has worked, it would be very helpful if you would help me, I need to unlock the 900 bands (3g) and 1800 (4g) my operator is Cubacel thanks

 

[Androidonis]

Hello everybody. I got a refurbished Z3Compact from China. It reports as D5803, but only LTE 1,3,19,21 supported. It seems that it can also receive 20, maybe because it is very similar to 19. But reception is always at minimum strength. Will it be possible with this method to activate B20 and use it better?

 

[dennis5pia]

Hello everybody. I got a refurbished Z3Compact from China. It reports as D5803, but only LTE 1,3,19,21 supported. It seems that it can also receive 20, maybe because it is very similar to 19. But reception is always at minimum strength. Will it be possible with this method to activate B20 and use it better?

If you got reception on B20 even with poor signal it means B20 is activated within your device, so the poor signal issue is something else.

Enabling bands with this method is not guarantee and it can damage your modem leaving your device with no reception at all.

 

[BOBxibyt]

Hey guys in own an LG V50 ThinQ with model SKT_KR on GSMarena I see a LTE support for 3 and 8 the reason I got the phone and I noticed LG enforces some support of carrier restrictions (don't know if the Korean variant applies too) I've been tryna get band 3 and 8 working but to no avail I need this for VOLTE was wondering if this could help me

 

[maryo_mariux]

Hi All,

I have a Xiaomi Mi10s and I want to unlock LTE B20. Following some tutorials from internet, I managed to Root the phone, to put it in diag mode, to be accessible by Qualcomm Product Configuration Assistant Tool and also QPST and try to modify the NV values. Some values can be accessed and some others not.

To put the phone in diag mode i used the following commands:
adb shell
su
setprop sys.usb.config diag,adb
or
adb shell
su
setprop persist.vendor.usb.config diag,diag_mdm,qdss,qdss_mdm,serial_cdev,dpl,rmnet,adb
setprop sys.usb.config diag,diag_mdm,qdss,qdss_mdm,serial_cdev,dpl,rmnet,adb
After the commands were entered, SDX55M was recognized and accessible.
I was trying to read exactly the value LTE 6828 or 6829 and it says NVITEM INACTIVE.
Other NV Items for example MCS 67295 it says NVITEM READ COMPLETED and it can be accessed.

I also managed to access NV/EFS config tool straight from Rueban (MTB)V2.4 using secret code explorer app accessing 663368378.
I believe that using this tool i can edit the NV Memory values without Qualcomm Product Configuration Assistant Tool and also QPST.

Kindly advise how to unlock band b20 because I am not sure if this method of changing the NV values 6828 or 6829 can still be applied to unlock LTE Bands.

Thank you,

 

[alvathoni]

Want to try this on my unlocked Xperia 5 (Japanese version). Wish me luck!

 

[Pandemic]

Hi All,

I have a Xiaomi Mi10s and I want to unlock LTE B20. Following some tutorials from internet, I managed to Root the phone, to put it in diag mode, to be accessible by Qualcomm Product Configuration Assistant Tool and also QPST and try to modify the NV values. Some values can be accessed and some others not.

To put the phone in diag mode i used the following commands:
adb shell
su
setprop sys.usb.config diag,adb
or
adb shell
su
setprop persist.vendor.usb.config diag,diag_mdm,qdss,qdss_mdm,serial_cdev,dpl,rmnet,adb
setprop sys.usb.config diag,diag_mdm,qdss,qdss_mdm,serial_cdev,dpl,rmnet,adb
After the commands were entered, SDX55M was recognized and accessible.
I was trying to read exactly the value LTE 6828 or 6829 and it says NVITEM INACTIVE.
Other NV Items for example MCS 67295 it says NVITEM READ COMPLETED and it can be accessed.

I also managed to access NV/EFS config tool straight from Rueban (MTB)V2.4 using secret code explorer app accessing 663368378.
I believe that using this tool i can edit the NV Memory values without Qualcomm Product Configuration Assistant Tool and also QPST.

Kindly advise how to unlock band b20 because I am not sure if this method of changing the NV values 6828 or 6829 can still be applied to unlock LTE Bands.

Thank you,

This is a sony cross forum, why not ask in your own forum..

 

[4qx]

3. Open the caller app and type in *#*#8778#*#* (it should go off the screen after you type in the last symbol "*"
3.5 Those on custom roms (tested on cyanogen 11 with s4 mini) can use the efs professional toolkit to change the mode to enable the diag port.(Thanks @blackburn !)

Trying to enable diag port on my Sony Xperia XZ1 Compact to repair its IMEI, dial code from #3 yields nothing and EFS (more specifically Quacomm NV Tools) fails to show the phone in COM ports. Any advice?