b20 research default value NVram

[xsiriusx]

am conducting research on the band 20 for MI5S. I need know your default values NVRAM the following settings. The values you can read them by installing QPST and QXRD. Thank you for participating.

Below my original

441: 0x387
946: 0x04E8
1877: 562950035734915
2954: 131072
6828: 2061584302293

 

[xsiriusx]

nobody?

 

[shaneel1491]

Should be getting the device soon, I'll see then, also in the regular Mi 5 xda there was some progress with unlocking bands, maybe they can help.

 

[techreviewer.de]

The values are the same on every Mi5S. Did you try changing the lte_bc_config value to enable b20? But anyways I don't think it's that easy to activate b20 on the Mi5S.

 

[xsiriusx]

not to dirty the other post, I created this my idea, is to verify this information on our devices, if they have a fixed value, or changes to the device, since the limitation is not hardware but it is "just" software.

 

[xsiriusx]

The values are the same on every Mi5S. Did you try changing the lte_bc_config value to enable b20? But anyways I don't think it's that easy to activate b20 on the Mi5S.

you sure are the same? you who have values?

 

[techreviewer.de]

you sure are the same? you who have values?

yes, these are fixed values. You can calculate them with this app https://play.google.com/store/apps/details?id=org.vndnguyen.nvcalc
calculate the value including b20, change it on nvram and you should see if it's just software locked.

Edit: checked on my device and def. the same.

 

[xsiriusx]

yes, these are fixed values. You can calculate them with this app https://play.google.com/store/apps/details?id=org.vndnguyen.nvcalc
calculate the value including b20, change it on nvram and you should see if it's just software locked.

Edit: checked on my device and def. the same.

I know this story, my MI5S never finds any 4G network, pictured a MI5S and redmi notes 3 MTK. I can not find an explanation

edit: my operator does not work on the band 20, but the terminal never finds any 4g network

 

[ACosta92]

Well,

I have an idea but only someone with Redmi Note 3 Pro could help us to active the Band 20.

Redmi Note 3 Pro have 2 Global Roms:
- Global Rom (without B20)
- Special Edition (with B20)

Some of RN3P are using the Special Edition in order to have the Band 20 enabled.

Since that I don't have the phone neither the proper technical skills, I'm not able to explore this idea. Hope that someone could help us to enable that thingy.



------UPDATE------

I've been doing some research:

In the official forum post about the Special Edition, Xiaomi tells that if you flash the Special Edition ROM on the Regular Redmi Note 3 Pro, you will wipe your IMEI information.

Since the IMEI info is on EFS partition, could be that partition be the key to unlock the bands?
Is anyone able to: Backup EFS\ Install Special Edition\ Restore IMEI Info and check LTE Bands on a Redmi Note 3 Pro?

 

[xsiriusx]

The special Edition is snapdragon the note in photo is mediatek

Inviato dal mio MI 5s utilizzando Tapatalk

 

[ACosta92]

The special Edition is snapdragon the note in photo is mediatek

Inviato dal mio MI 5s utilizzando Tapatalk

I know man, we have to wait for someone to help us.

 

[xsiriusx]

many views, few answers!

 

[DarknessWarrior]

I highly doubt you could enable it just by changing NVRAM values, people have tried it on the Mi5 (http://forum.xda-developers.com/mi-5/how-to/progress-trying-to-unlock-bands-t3337476) but to no avail.
They're already looking at changing SNR levels and sync values...

My wishful thinking is that, since China Telecom announced that they'd start using LTE band 20 in 2017 we COULD get an update unlocking band 20, so people with Mi5s's on China could use band 20.
But, like I said, wishful thinking...

 

[xsiriusx]

I highly doubt you could enable it just by changing NVRAM values, people have tried it on the Mi5 (http://forum.xda-developers.com/mi-5/how-to/progress-trying-to-unlock-bands-t3337476) but to no avail.
They're already looking at changing SNR levels and sync values...

My wishful thinking is that, since China Telecom announced that they'd start using LTE band 20 in 2017 we COULD get an update unlocking band 20, so people with Mi5s's on China could use band 20.
But, like I said, wishful thinking...

the problem on my mi5s is, that does not hook any band 4g. the question of the band 20 I know, my operator does not use it, use the frequencies 1800 MHz, 2600 MHz. b3 and b38, but I never find any 4g network.

 

[grandma_p]

the problem on my mi5s is, that does not hook any band 4g. the question of the band 20 I know, my operator does not use it, use the frequencies 1800 MHz, 2600 MHz. b3 and b38, but I never find any 4g network.

To be on the save side have you tried already:
- with different SIM cards (maybe also of other providers)
- changing the SIM slot on your phone

 

[patoberli]

Xsiriusx, some providers disable LTE on their side for certain contracts. You should call your provider and ask him if LTE is enabled for your contract and sim card.

 

[xsiriusx]

To be on the save side have you tried already:
- with different SIM cards (maybe also of other providers)
- changing the SIM slot on your phone

already tried

 

[xsiriusx]

Xsiriusx, some providers disable LTE on their side for certain contracts. You should call your provider and ask him if LTE is enabled for your contract and sim card.

I know this story, my MI5S never finds any 4G network, pictured a MI5S and redmi notes 3 MTK. I can not find an explanation

edit: my operator does not work on the band 20, but the terminal never finds any 4g network

mi5s and next redmi notes 3 MTK. I do not think an operator problem. on my previous phone he was going to 4g.